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20 Commits

Author SHA1 Message Date
Matthias Clasen
0bd3173549 forgotten files 2019-06-30 23:02:26 +00:00
Matthias Clasen
7ddaef4cf2 Add a constraint editor demo
This is an initial cut at providing a tool
for interactive exploration of constraints.
2019-06-30 22:00:21 +00:00
Matthias Clasen
05488a59bd constraint layout: notice when guides change
We need to queue a resize here.
2019-06-30 21:50:07 +00:00
Matthias Clasen
0426431446 Fix a crash in action muxer destruction
I've seen a crash when the action muxer gets
disposed during widget destroy, and tries to
disconnect from widget signals too late.

There is no real need to disconnect, since the
only time an action muxer is going away is when
its widget is destroyed, so just don't do it.
2019-06-30 21:50:07 +00:00
Matthias Clasen
c4dbf27f15 Add gtk_constraint_layout_remove_all_constraints
Otherwise, there is no way of getting rid of
vfl constraints.
2019-06-29 23:00:57 +00:00
Matthias Clasen
30d5e94368 Mark the layout as changed
We should mark the layout as changed when
constraints are added or removed.
2019-06-29 23:00:51 +00:00
Emmanuele Bassi
ba5237e7c9 Add a C convenience function for VFL constraints
The dictionary-based function is convenient for language bindings, but C
developers will feel more at home with a variadic arguments list.
2019-06-29 19:04:29 +01:00
Emmanuele Bassi
2311532c7e Add Constraints/VFL demo
Shows how to describe constraints using VFL instead of constructing
objects manually.
2019-06-29 18:51:39 +01:00
Emmanuele Bassi
6be2a787e0 Allow adding constraints described through VFL 2019-06-29 18:50:43 +01:00
Emmanuele Bassi
1e725b66a5 Add VFL parser for constraints
Constraints can be expressed with a compact syntax, called VFL (visual
format language).
2019-06-29 18:32:33 +01:00
Emmanuele Bassi
f0933ba371 Remove GtkConstraintVariable.set_prefix()
The prefix and name are set at construction time.
2019-06-29 17:22:58 +01:00
Matthias Clasen
12d45c01b0 Add an interactive constraints demo 2019-06-28 13:11:22 +01:00
Matthias Clasen
fc3f4aafe5 Make the constraints demo more interesting
Add a max size to the buttons, to force the
space to open up.
2019-06-28 13:11:22 +01:00
Matthias Clasen
ffd8b19a87 Add GtkConstraintGuide
This is meant to be a flexible space.
2019-06-28 13:11:22 +01:00
Emmanuele Bassi
20c4a4bb21 Use generic pointers for constraint targets
Since GtkWidget implements GtkConstraintTarget, we can omit the explicit
cast, and validate the type at run time.
2019-06-28 13:11:22 +01:00
Matthias Clasen
f8647b02eb Redefine constraints with GtkConstraintTarget
This is in preparation for allowing non-widgets
to act as constraint targets.
2019-06-28 13:11:22 +01:00
Matthias Clasen
4b11e73be6 widget: Implement GtkConstraintTarget 2019-06-28 13:11:22 +01:00
Matthias Clasen
4de3e99fbe Add GtkConstraintTarget
This is an marker interface that we will
use to accept other things that widgets
in constraints.
2019-06-28 13:11:22 +01:00
Emmanuele Bassi
c81e04755d Notify a layout change when adding and removing constraints
Changing the set of constraints should cause a relayout.
2019-06-28 13:11:22 +01:00
Emmanuele Bassi
e4466dd4fe Fix the opposite size measurement in GtkConstraintLayout
We cannot use the given "for size" when querying our children, because
the constraint layout has no idea about the opposite size of its
children until the layout is complete.

Additionally, we should only suggest an opposite size for the layout if
we have one, instead of suggesting a weak zero size.
2019-06-28 13:11:22 +01:00
38 changed files with 5274 additions and 221 deletions

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/*
* Copyright © 2019 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#include "config.h"
#include "constraint-editor-application.h"
#include "constraint-editor-window.h"
struct _ConstraintEditorApplication
{
GtkApplication parent_instance;
};
G_DEFINE_TYPE(ConstraintEditorApplication, constraint_editor_application, GTK_TYPE_APPLICATION);
static void
constraint_editor_application_init (ConstraintEditorApplication *app)
{
}
static void
quit_activated (GSimpleAction *action,
GVariant *parameter,
gpointer data)
{
g_application_quit (G_APPLICATION (data));
}
static GActionEntry app_entries[] =
{
{ "quit", quit_activated, NULL, NULL, NULL }
};
static void
constraint_editor_application_startup (GApplication *app)
{
const char *quit_accels[2] = { "<Ctrl>Q", NULL };
GtkCssProvider *provider;
G_APPLICATION_CLASS (constraint_editor_application_parent_class)->startup (app);
g_action_map_add_action_entries (G_ACTION_MAP (app),
app_entries, G_N_ELEMENTS (app_entries),
app);
gtk_application_set_accels_for_action (GTK_APPLICATION (app), "app.quit", quit_accels);
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_resource (provider, "/org/gtk/gtk4/constraint-editor/constraint-editor.css");
gtk_style_context_add_provider_for_display (gdk_display_get_default (),
GTK_STYLE_PROVIDER (provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
}
static void
constraint_editor_application_activate (GApplication *app)
{
ConstraintEditorWindow *win;
win = constraint_editor_window_new (CONSTRAINT_EDITOR_APPLICATION (app));
gtk_window_present (GTK_WINDOW (win));
}
static void
constraint_editor_application_class_init (ConstraintEditorApplicationClass *class)
{
GApplicationClass *application_class = G_APPLICATION_CLASS (class);
application_class->startup = constraint_editor_application_startup;
application_class->activate = constraint_editor_application_activate;
}
ConstraintEditorApplication *
constraint_editor_application_new (void)
{
return g_object_new (CONSTRAINT_EDITOR_APPLICATION_TYPE,
"application-id", "org.gtk.gtk4.ConstraintEditor",
NULL);
}

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/*
* Copyright © 2019 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#define CONSTRAINT_EDITOR_APPLICATION_TYPE (constraint_editor_application_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintEditorApplication, constraint_editor_application, CONSTRAINT, EDITOR_APPLICATION, GtkApplication)
ConstraintEditorApplication *constraint_editor_application_new (void);

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/*
* Copyright © 2019 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#include "config.h"
#include "constraint-editor-window.h"
#include "constraint-view.h"
#include "constraint-editor.h"
#include "guide-editor.h"
struct _ConstraintEditorWindow
{
GtkApplicationWindow parent_instance;
GtkWidget *paned;
GtkWidget *view;
GtkWidget *list;
};
G_DEFINE_TYPE(ConstraintEditorWindow, constraint_editor_window, GTK_TYPE_APPLICATION_WINDOW);
gboolean
constraint_editor_window_load (ConstraintEditorWindow *self,
GFile *file)
{
GBytes *bytes;
bytes = g_file_load_bytes (file, NULL, NULL, NULL);
if (bytes == NULL)
return FALSE;
if (!g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL))
{
g_bytes_unref (bytes);
return FALSE;
}
#if 0
gtk_text_buffer_get_end_iter (self->text_buffer, &end);
gtk_text_buffer_insert (self->text_buffer,
&end,
g_bytes_get_data (bytes, NULL),
g_bytes_get_size (bytes));
#endif
g_bytes_unref (bytes);
return TRUE;
}
static void
constraint_editor_window_finalize (GObject *object)
{
//ConstraintEditorWindow *self = (ConstraintEditorWindow *)object;
G_OBJECT_CLASS (constraint_editor_window_parent_class)->finalize (object);
}
static int child_counter;
static int guide_counter;
static void
add_child (ConstraintEditorWindow *win)
{
char *name;
child_counter++;
name = g_strdup_printf ("Child %d", child_counter);
constraint_view_add_child (CONSTRAINT_VIEW (win->view), name);
g_free (name);
}
static void
add_guide (ConstraintEditorWindow *win)
{
char *name;
GtkConstraintGuide *guide;
guide_counter++;
name = g_strdup_printf ("Guide %d", guide_counter);
guide = g_object_new (GTK_TYPE_CONSTRAINT_GUIDE, NULL);
g_object_set_data_full (G_OBJECT (guide), "name", name, g_free);
constraint_view_add_guide (CONSTRAINT_VIEW (win->view), guide);
}
static void
constraint_editor_done (ConstraintEditor *editor,
GtkConstraint *constraint,
ConstraintEditorWindow *win)
{
GtkConstraint *old_constraint;
g_object_get (editor, "constraint", &old_constraint, NULL);
if (old_constraint)
constraint_view_remove_constraint (CONSTRAINT_VIEW (win->view), old_constraint);
constraint_view_add_constraint (CONSTRAINT_VIEW (win->view), constraint);
g_clear_object (&old_constraint);
gtk_widget_destroy (gtk_widget_get_ancestor (GTK_WIDGET (editor), GTK_TYPE_WINDOW));
}
static void
edit_constraint (ConstraintEditorWindow *win,
GtkConstraint *constraint)
{
GtkWidget *window;
ConstraintEditor *editor;
GListModel *model;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (win));
gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
if (constraint)
gtk_window_set_title (GTK_WINDOW (window), "Edit Constraint");
else
gtk_window_set_title (GTK_WINDOW (window), "Create Constraint");
model = constraint_view_get_model (CONSTRAINT_VIEW (win->view));
editor = constraint_editor_new (model, constraint);
gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (editor));
g_signal_connect (editor, "done", G_CALLBACK (constraint_editor_done), win);
gtk_widget_show (window);
}
static void
add_constraint (ConstraintEditorWindow *win)
{
edit_constraint (win, NULL);
}
static void
guide_editor_done (GuideEditor *editor,
GtkConstraintGuide *guide,
ConstraintEditorWindow *win)
{
constraint_view_guide_changed (CONSTRAINT_VIEW (win->view), guide);
gtk_widget_destroy (gtk_widget_get_ancestor (GTK_WIDGET (editor), GTK_TYPE_WINDOW));
}
static void
edit_guide (ConstraintEditorWindow *win,
GtkConstraintGuide *guide)
{
GtkWidget *window;
GuideEditor *editor;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (win));
gtk_window_set_title (GTK_WINDOW (window), "Edit Guide");
editor = guide_editor_new (guide);
gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (editor));
g_signal_connect (editor, "done", G_CALLBACK (guide_editor_done), win);
gtk_widget_show (window);
}
static void
row_activated (GtkListBox *list,
GtkListBoxRow *row,
ConstraintEditorWindow *win)
{
GObject *item;
item = G_OBJECT (g_object_get_data (G_OBJECT (row), "item"));
if (GTK_IS_CONSTRAINT (item))
edit_constraint (win, GTK_CONSTRAINT (item));
else if (GTK_IS_CONSTRAINT_GUIDE (item))
edit_guide (win, GTK_CONSTRAINT_GUIDE (item));
}
static void
constraint_editor_window_class_init (ConstraintEditorWindowClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
g_type_ensure (CONSTRAINT_VIEW_TYPE);
object_class->finalize = constraint_editor_window_finalize;
gtk_widget_class_set_template_from_resource (widget_class,
"/org/gtk/gtk4/constraint-editor/constraint-editor-window.ui");
gtk_widget_class_bind_template_child (widget_class, ConstraintEditorWindow, paned);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditorWindow, view);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditorWindow, list);
gtk_widget_class_bind_template_callback (widget_class, add_child);
gtk_widget_class_bind_template_callback (widget_class, add_guide);
gtk_widget_class_bind_template_callback (widget_class, add_constraint);
gtk_widget_class_bind_template_callback (widget_class, row_activated);
}
static void
row_edit (GtkButton *button,
ConstraintEditorWindow *win)
{
GtkWidget *row;
GObject *item;
row = gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_LIST_BOX_ROW);
item = (GObject *)g_object_get_data (G_OBJECT (row), "item");
if (GTK_IS_CONSTRAINT (item))
edit_constraint (win, GTK_CONSTRAINT (item));
else if (GTK_IS_CONSTRAINT_GUIDE (item))
edit_guide (win, GTK_CONSTRAINT_GUIDE (item));
}
static void
mark_constraints_invalid (ConstraintEditorWindow *win,
gpointer removed)
{
GtkWidget *child;
GObject *item;
for (child = gtk_widget_get_first_child (win->list);
child;
child = gtk_widget_get_next_sibling (child))
{
item = (GObject *)g_object_get_data (G_OBJECT (child), "item");
if (GTK_IS_CONSTRAINT (item))
{
GtkConstraint *constraint = GTK_CONSTRAINT (item);
if (gtk_constraint_get_target (constraint) == (GtkConstraintTarget *)removed ||
gtk_constraint_get_source (constraint) == (GtkConstraintTarget *)removed)
{
GtkWidget *button;
button = (GtkWidget *)g_object_get_data (G_OBJECT (child), "edit");
gtk_button_set_icon_name (GTK_BUTTON (button), "dialog-warning-symbolic");
gtk_widget_set_tooltip_text (button, "Constraint is invalid");
}
}
}
}
static void
row_delete (GtkButton *button,
ConstraintEditorWindow *win)
{
GtkWidget *row;
GObject *item;
row = gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_LIST_BOX_ROW);
item = (GObject *)g_object_get_data (G_OBJECT (row), "item");
if (GTK_IS_CONSTRAINT (item))
constraint_view_remove_constraint (CONSTRAINT_VIEW (win->view),
GTK_CONSTRAINT (item));
else if (GTK_IS_CONSTRAINT_GUIDE (item))
{
mark_constraints_invalid (win, item);
constraint_view_remove_guide (CONSTRAINT_VIEW (win->view),
GTK_CONSTRAINT_GUIDE (item));
}
else if (GTK_IS_WIDGET (item))
{
mark_constraints_invalid (win, item);
constraint_view_remove_child (CONSTRAINT_VIEW (win->view),
GTK_WIDGET (item));
}
}
static GtkWidget *
create_widget_func (gpointer item,
gpointer user_data)
{
ConstraintEditorWindow *win = user_data;
const char *name;
GtkWidget *row, *box, *label, *button;
name = (const char *)g_object_get_data (G_OBJECT (item), "name");
row = gtk_list_box_row_new ();
g_object_set_data (G_OBJECT (row), "item", item);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
label = gtk_label_new (name);
g_object_set (label,
"margin", 10,
NULL);
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_widget_set_hexpand (label, TRUE);
gtk_container_add (GTK_CONTAINER (row), box);
gtk_container_add (GTK_CONTAINER (box), label);
if (GTK_IS_CONSTRAINT (item) || GTK_IS_CONSTRAINT_GUIDE (item))
{
button = gtk_button_new_from_icon_name ("document-edit-symbolic");
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
g_signal_connect (button, "clicked", G_CALLBACK (row_edit), win);
g_object_set_data (G_OBJECT (row), "edit", button);
gtk_container_add (GTK_CONTAINER (box), button);
button = gtk_button_new_from_icon_name ("edit-delete-symbolic");
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
g_signal_connect (button, "clicked", G_CALLBACK (row_delete), win);
gtk_container_add (GTK_CONTAINER (box), button);
}
else if (GTK_IS_WIDGET (item))
{
button = gtk_button_new_from_icon_name ("edit-delete-symbolic");
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
g_signal_connect (button, "clicked", G_CALLBACK (row_delete), win);
gtk_container_add (GTK_CONTAINER (box), button);
}
return row;
}
static void
constraint_editor_window_init (ConstraintEditorWindow *self)
{
gtk_widget_init_template (GTK_WIDGET (self));
gtk_list_box_bind_model (GTK_LIST_BOX (self->list),
constraint_view_get_model (CONSTRAINT_VIEW (self->view)),
create_widget_func,
self,
NULL);
}
ConstraintEditorWindow *
constraint_editor_window_new (ConstraintEditorApplication *application)
{
return g_object_new (CONSTRAINT_EDITOR_WINDOW_TYPE,
"application", application,
NULL);
}

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/*
* Copyright © 2019 Red Hat, Inc
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#include "constraint-editor-application.h"
#define CONSTRAINT_EDITOR_WINDOW_TYPE (constraint_editor_window_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintEditorWindow, constraint_editor_window, CONSTRAINT, EDITOR_WINDOW, GtkApplicationWindow)
ConstraintEditorWindow * constraint_editor_window_new (ConstraintEditorApplication *application);
gboolean constraint_editor_window_load (ConstraintEditorWindow *self,
GFile *file);

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<?xml version="1.0" encoding="UTF-8"?>
<interface>
<template class="ConstraintEditorWindow" parent="GtkApplicationWindow">
<style>
<class name="devel"/>
</style>
<property name="title" translatable="yes">GTK Constraint Editor</property>
<property name="default-width">1024</property>
<property name="default-height">768</property>
<child type="titlebar">
<object class="GtkHeaderBar" id="header">
<property name="title" translatable="yes">GTK Constraint Editor</property>
<property name="show-title-buttons">1</property>
</object>
</child>
<child>
<object class="GtkPaned" id="paned">
<property name="orientation">horizontal</property>
<child>
<object class="GtkBox">
<property name="orientation">vertical</property>
<child>
<object class="GtkBox">
<property name="orientation">horizontal</property>
<child>
<object class="GtkButton">
<property name="label">Add Child</property>
<signal name="clicked" handler="add_child" swapped="yes"/>
</object>
</child>
<child>
<object class="GtkButton">
<property name="label">Add Guide</property>
<signal name="clicked" handler="add_guide" swapped="yes"/>
</object>
</child>
<child>
<object class="GtkButton">
<property name="label">Add Constraint</property>
<signal name="clicked" handler="add_constraint" swapped="yes"/>
</object>
</child>
</object>
</child>
<child>
<object class="GtkScrolledWindow">
<property name="hscrollbar-policy">never</property>
<property name="vscrollbar-policy">automatic</property>
<property name="vexpand">1</property>
<child>
<object class="GtkListBox" id="list">
<property name="show-separators">1</property>
<property name="selection-mode">none</property>
<signal name="row-activated" handler="row_activated"/>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="ConstraintView" id="view">
</object>
</child>
</object>
</child>
</template>
</interface>

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/*
* Copyright © 2019 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#include "config.h"
#include "constraint-editor.h"
struct _ConstraintEditor
{
GtkWidget parent_instance;
GtkWidget *grid;
GtkWidget *name;
GtkWidget *target;
GtkWidget *target_attr;
GtkWidget *relation;
GtkWidget *source;
GtkWidget *source_attr;
GtkWidget *multiplier;
GtkWidget *constant;
GtkWidget *strength;
GtkWidget *preview;
GtkWidget *button;
GtkConstraint *constraint;
GListModel *model;
gboolean constructed;
};
enum {
PROP_MODEL = 1,
PROP_CONSTRAINT,
LAST_PROP
};
static GParamSpec *pspecs[LAST_PROP];
enum {
DONE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
G_DEFINE_TYPE(ConstraintEditor, constraint_editor, GTK_TYPE_WIDGET);
static const char *
get_target_name (GtkConstraintTarget *target)
{
if (target == NULL)
return "super";
else
return (const char *)g_object_get_data (G_OBJECT (target), "name");
}
static void
constraint_target_combo (GListModel *model,
GtkWidget *combo,
gboolean is_source)
{
int i;
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "super", "Super");
if (model)
{
for (i = 0; i < g_list_model_get_n_items (model); i++)
{
GObject *item = g_list_model_get_object (model, i);
const char *name;
if (GTK_IS_CONSTRAINT (item))
continue;
name = get_target_name (GTK_CONSTRAINT_TARGET (item));
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), name, name);
g_object_unref (item);
}
}
}
static void
constraint_attribute_combo (GtkWidget *combo,
gboolean is_source)
{
if (is_source)
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "none", "None");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "left", "Left");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "right", "Right");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "top", "Top");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "bottom", "Bottom");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "start", "Start");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "end", "End");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "width", "Width");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "height", "Height");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "center-x", "Center X");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "center-y", "Center Y");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "baseline", "Baseline");
}
static void
constraint_relation_combo (GtkWidget *combo)
{
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "le", "");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "eq", "=");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "ge", "");
}
static void
constraint_strength_combo (GtkWidget *combo)
{
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "weak", "Weak");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "medium", "Medium");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "strong", "Strong");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "required", "Required");
}
static gpointer
get_target (GListModel *model,
const char *id)
{
int i;
if (strcmp ("super", id) == 0)
return NULL;
for (i = 0; i < g_list_model_get_n_items (model); i++)
{
GObject *item = g_list_model_get_object (model, i);
const char *name;
if (GTK_IS_CONSTRAINT (item))
continue;
name = (const char *)g_object_get_data (item, "name");
g_object_unref (item);
if (strcmp (name, id) == 0)
return item;
}
return NULL;
}
static GtkConstraintAttribute
get_target_attr (const char *id)
{
GtkConstraintAttribute attr;
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_ATTRIBUTE);
GEnumValue *value = g_enum_get_value_by_nick (class, id);
attr = value->value;
g_type_class_unref (class);
return attr;
}
static const char *
get_attr_nick (GtkConstraintAttribute attr)
{
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_ATTRIBUTE);
GEnumValue *value = g_enum_get_value (class, attr);
const char *nick = value->value_nick;
g_type_class_unref (class);
return nick;
}
static GtkConstraintRelation
get_relation (const char *id)
{
GtkConstraintRelation relation;
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_RELATION);
GEnumValue *value = g_enum_get_value_by_nick (class, id);
relation = value->value;
g_type_class_unref (class);
return relation;
}
static const char *
get_relation_nick (GtkConstraintRelation relation)
{
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_RELATION);
GEnumValue *value = g_enum_get_value (class, relation);
const char *nick = value->value_nick;
g_type_class_unref (class);
return nick;
}
static GtkConstraintStrength
get_strength (const char *id)
{
GtkConstraintStrength strength;
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_STRENGTH);
GEnumValue *value = g_enum_get_value_by_nick (class, id);
strength = value->value;
g_type_class_unref (class);
return strength;
}
static const char *
get_strength_nick (GtkConstraintStrength strength)
{
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_STRENGTH);
GEnumValue *value = g_enum_get_value (class, strength);
const char *nick = value->value_nick;
g_type_class_unref (class);
return nick;
}
static void
create_constraint (GtkButton *button,
ConstraintEditor *editor)
{
const char *id;
gpointer target;
GtkConstraintAttribute target_attr;
gpointer source;
GtkConstraintAttribute source_attr;
GtkConstraintRelation relation;
double multiplier;
double constant;
int strength;
GtkConstraint *constraint;
const char *name;
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target));
target = get_target (editor->model, id);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target_attr));
target_attr = get_target_attr (id);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source));
source = get_target (editor->model, id);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source_attr));
source_attr = get_target_attr (id);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->relation));
relation = get_relation (id);
multiplier = g_ascii_strtod (gtk_editable_get_text (GTK_EDITABLE (editor->multiplier)), NULL);
constant = g_ascii_strtod (gtk_editable_get_text (GTK_EDITABLE (editor->constant)), NULL);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->strength));
strength = get_strength (id);
name = gtk_editable_get_text (GTK_EDITABLE (editor->name));
constraint = gtk_constraint_new (target, target_attr,
relation,
source, source_attr,
multiplier,
constant,
strength);
g_object_set_data_full (G_OBJECT (constraint), "name", g_strdup (name), g_free);
g_signal_emit (editor, signals[DONE], 0, constraint);
g_object_unref (constraint);
}
static void
source_attr_changed (ConstraintEditor *editor)
{
const char *id;
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source_attr));
if (strcmp (id, "none") == 0)
{
gtk_combo_box_set_active (GTK_COMBO_BOX (editor->source), -1);
gtk_editable_set_text (GTK_EDITABLE (editor->multiplier), "");
gtk_widget_set_sensitive (editor->source, FALSE);
gtk_widget_set_sensitive (editor->multiplier, FALSE);
}
else
{
gtk_widget_set_sensitive (editor->source, TRUE);
gtk_widget_set_sensitive (editor->multiplier, TRUE);
}
}
static void
update_preview (ConstraintEditor *editor)
{
GString *str;
const char *name;
const char *attr;
char *relation;
const char *multiplier;
const char *constant;
double c, m;
if (!editor->constructed)
return;
str = g_string_new ("");
name = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target));
attr = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target_attr));
relation = gtk_combo_box_text_get_active_text (GTK_COMBO_BOX_TEXT (editor->relation));
if (name == NULL)
name = "[ ]";
g_string_append_printf (str, "%s.%s %s ", name, attr, relation);
g_free (relation);
constant = gtk_editable_get_text (GTK_EDITABLE (editor->constant));
c = g_ascii_strtod (constant, NULL);
attr = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source_attr));
if (strcmp (attr, "none") != 0)
{
name = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source));
multiplier = gtk_editable_get_text (GTK_EDITABLE (editor->multiplier));
m = g_ascii_strtod (multiplier, NULL);
if (name == NULL)
name = "[ ]";
g_string_append_printf (str, "%s.%s", name, attr);
if (m != 1.0)
g_string_append_printf (str, " × %g", m);
if (c > 0.0)
g_string_append_printf (str, " + %g", c);
else if (c < 0.0)
g_string_append_printf (str, " - %g", -c);
}
else
g_string_append_printf (str, "%g", c);
gtk_label_set_label (GTK_LABEL (editor->preview), str->str);
g_string_free (str, TRUE);
}
static void
update_button (ConstraintEditor *editor)
{
if (gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target)) != NULL &&
gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source)) != NULL)
gtk_widget_set_sensitive (editor->button, TRUE);
else
gtk_widget_set_sensitive (editor->button, FALSE);
}
static void
constraint_editor_init (ConstraintEditor *editor)
{
gtk_widget_init_template (GTK_WIDGET (editor));
}
static int constraint_counter;
static void
constraint_editor_constructed (GObject *object)
{
ConstraintEditor *editor = CONSTRAINT_EDITOR (object);
constraint_target_combo (editor->model, editor->target, FALSE);
constraint_attribute_combo (editor->target_attr, FALSE);
constraint_relation_combo (editor->relation);
constraint_target_combo (editor->model, editor->source, TRUE);
constraint_attribute_combo (editor->source_attr, TRUE);
constraint_strength_combo (editor->strength);
if (editor->constraint)
{
GtkConstraintTarget *target;
GtkConstraintAttribute attr;
GtkConstraintRelation relation;
GtkConstraintStrength strength;
const char *nick;
char *val;
double multiplier;
double constant;
nick = (char *)g_object_get_data (G_OBJECT (editor->constraint), "name");
gtk_editable_set_text (GTK_EDITABLE (editor->name), nick);
target = gtk_constraint_get_target (editor->constraint);
nick = get_target_name (target);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->target), nick);
attr = gtk_constraint_get_target_attribute (editor->constraint);
nick = get_attr_nick (attr);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->target_attr), nick);
target = gtk_constraint_get_source (editor->constraint);
nick = get_target_name (target);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->source), nick);
attr = gtk_constraint_get_source_attribute (editor->constraint);
nick = get_attr_nick (attr);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->source_attr), nick);
relation = gtk_constraint_get_relation (editor->constraint);
nick = get_relation_nick (relation);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->relation), nick);
multiplier = gtk_constraint_get_multiplier (editor->constraint);
val = g_strdup_printf ("%g", multiplier);
gtk_editable_set_text (GTK_EDITABLE (editor->multiplier), val);
g_free (val);
constant = gtk_constraint_get_constant (editor->constraint);
val = g_strdup_printf ("%g", constant);
gtk_editable_set_text (GTK_EDITABLE (editor->constant), val);
g_free (val);
strength = gtk_constraint_get_strength (editor->constraint);
nick = get_strength_nick (strength);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->strength), nick);
gtk_button_set_label (GTK_BUTTON (editor->button), "Apply");
}
else
{
char *name;
constraint_counter++;
name = g_strdup_printf ("Constraint %d", constraint_counter);
gtk_editable_set_text (GTK_EDITABLE (editor->name), name);
g_free (name);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->target_attr), "left");
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->source_attr), "left");
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->relation), "eq");
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->strength), "required");
gtk_editable_set_text (GTK_EDITABLE (editor->multiplier), "1.0");
gtk_editable_set_text (GTK_EDITABLE (editor->constant), "0.0");
gtk_button_set_label (GTK_BUTTON (editor->button), "Create");
}
editor->constructed = TRUE;
update_preview (editor);
update_button (editor);
}
static void
constraint_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
ConstraintEditor *self = CONSTRAINT_EDITOR (object);
switch (property_id)
{
case PROP_MODEL:
self->model = g_value_dup_object (value);
break;
case PROP_CONSTRAINT:
self->constraint = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
constraint_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
ConstraintEditor *self = CONSTRAINT_EDITOR (object);
switch (property_id)
{
case PROP_MODEL:
g_value_set_object (value, self->model);
break;
case PROP_CONSTRAINT:
g_value_set_object (value, self->constraint);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
constraint_editor_dispose (GObject *object)
{
ConstraintEditor *self = (ConstraintEditor *)object;
g_clear_pointer (&self->grid, gtk_widget_unparent);
g_clear_object (&self->model);
g_clear_object (&self->constraint);
G_OBJECT_CLASS (constraint_editor_parent_class)->dispose (object);
}
static void
constraint_editor_class_init (ConstraintEditorClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
object_class->constructed = constraint_editor_constructed;
object_class->dispose = constraint_editor_dispose;
object_class->set_property = constraint_editor_set_property;
object_class->get_property = constraint_editor_get_property;
pspecs[PROP_CONSTRAINT] =
g_param_spec_object ("constraint", "constraint", "constraint",
GTK_TYPE_CONSTRAINT,
G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY);
pspecs[PROP_MODEL] =
g_param_spec_object ("model", "model", "model",
G_TYPE_LIST_MODEL,
G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_properties (object_class, LAST_PROP, pspecs);
signals[DONE] =
g_signal_new ("done",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
NULL,
G_TYPE_NONE, 1, GTK_TYPE_CONSTRAINT);
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
gtk_widget_class_set_template_from_resource (widget_class,
"/org/gtk/gtk4/constraint-editor/constraint-editor.ui");
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, grid);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, name);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, target);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, target_attr);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, relation);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, source);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, source_attr);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, multiplier);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, constant);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, strength);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, preview);
gtk_widget_class_bind_template_child (widget_class, ConstraintEditor, button);
gtk_widget_class_bind_template_callback (widget_class, update_preview);
gtk_widget_class_bind_template_callback (widget_class, update_button);
gtk_widget_class_bind_template_callback (widget_class, create_constraint);
gtk_widget_class_bind_template_callback (widget_class, source_attr_changed);
}
ConstraintEditor *
constraint_editor_new (GListModel *model,
GtkConstraint *constraint)
{
return g_object_new (CONSTRAINT_EDITOR_TYPE,
"model", model,
"constraint", constraint,
NULL);
}

View File

@@ -0,0 +1,12 @@
constraintview {
background: black;
color: white;
}
constraintview .child {
background: red;
}
constraintview .guide {
background: blue;
}

View File

@@ -0,0 +1,9 @@
<?xml version="1.0" encoding="UTF-8"?>
<gresources>
<gresource prefix="/org/gtk/gtk4/constraint-editor">
<file preprocess="xml-stripblanks">constraint-editor-window.ui</file>
<file preprocess="xml-stripblanks">constraint-editor.ui</file>
<file preprocess="xml-stripblanks">guide-editor.ui</file>
<file>constraint-editor.css</file>
</gresource>
</gresources>

View File

@@ -0,0 +1,29 @@
/*
* Copyright © 2019 Red Hat, Inc
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#define CONSTRAINT_EDITOR_TYPE (constraint_editor_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintEditor, constraint_editor, CONSTRAINT, EDITOR, GtkWidget)
ConstraintEditor * constraint_editor_new (GListModel *model,
GtkConstraint *constraint);

View File

@@ -0,0 +1,180 @@
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<template class="ConstraintEditor" parent="GtkWidget">
<child>
<object class="GtkGrid" id="grid">
<property name="margin">20</property>
<property name="row-spacing">10</property>
<property name="column-spacing">10</property>
<child>
<object class="GtkLabel">
<property name="label">Name</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">0</property>
</layout>
</object>
</child>
<child>
<object class="GtkEntry" id="name">
<layout>
<property name="left-attach">1</property>
<property name="top-attach">0</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Target</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="target">
<signal name="changed" handler="update_preview" swapped="yes"/>
<signal name="changed" handler="update_button" swapped="yes"/>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="target_attr">
<signal name="changed" handler="update_preview" swapped="yes"/>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Relation</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="relation">
<signal name="changed" handler="update_preview" swapped="yes"/>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Source</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="source">
<signal name="changed" handler="update_preview" swapped="yes"/>
<signal name="changed" handler="update_button" swapped="yes"/>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="source_attr">
<signal name="changed" handler="update_preview" swapped="yes"/>
<signal name="changed" handler="source_attr_changed" swapped="yes"/>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Multiplier</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">4</property>
</layout>
</object>
</child>
<child>
<object class="GtkEntry" id="multiplier">
<signal name="changed" handler="update_preview" swapped="yes"/>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">4</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Constant</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">5</property>
</layout>
</object>
</child>
<child>
<object class="GtkEntry" id="constant">
<signal name="changed" handler="update_preview" swapped="yes"/>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">5</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Strength</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">6</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="strength">
<layout>
<property name="left-attach">1</property>
<property name="top-attach">6</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel" id="preview">
<property name="xalign">0</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">7</property>
<property name="column-span">2</property>
</layout>
<attributes>
<attribute name="scale" value="1.44"/>
</attributes>
</object>
</child>
<child>
<object class="GtkButton" id="button">
<property name="label">Create</property>
<signal name="clicked" handler="create_constraint"/>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">8</property>
</layout>
</object>
</child>
</object>
</child>
</template>
</interface>

View File

@@ -0,0 +1,93 @@
/*
* Copyright © 2019 Red Hat, Inc
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#include "constraint-view-child.h"
struct _ConstraintViewChild
{
GObject parent_instance;
char *name;
};
enum {
PROP_NAME = 1,
LAST_PROP
};
static GParamSpec props[LAST_PROP];
G_DEFINE_TYPE (ConstraintViewChild, constraint_view_child, G_TYPE_OBJECT)
static void
constraint_view_child_init (ConstraintViewChild *child)
{
}
static void
constraint_view_child_finalize (GObject *object)
{
ConstraintViewChild *child = CONSTRAINT_VIEW_CHILD (object);
g_free (child->name);
G_OBJECT_CLASS (constraint_view_child_parent_class)->finalize (object);
}
static void
constraint_view_child_set_property (GObject *object,
static void
constraint_view_child_class_init (ConstraintViewChildClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->finalize = constraint_view_child_finalize;
object_class->get_property = constraint_view_child_get_property;
object_class->set_property = constraint_view_child_set_property;
props[PROP_NAME] =
g_param_spec_string ("name", "name", "name",
NULL,
G_PARAM_READWRITE);
g_object_class_install_properties (object_class, LAST_PROP, props);
}
#define CONSTRAINT_VIEW_CHILD_TYPE (constraint_view_get_type ())
G_DECLARE_TYPE (ConstraintViewChild, constraint_view_child, CONSTRAINT, VIEW_CHILD, GObject)
#define CONSTRAINT_VIEW_WIDGET_TYPE (constraint_view_widget_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewWidget, constraint_view_widget, CONSTRAINT, VIEW_WIDGET, ConstraintViewChild)
ConstraintViewWidget * constraint_view_widget_new (void);
#define CONSTRAINT_VIEW_GUIDE_TYPE (constraint_view_guide_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewGuide, constraint_view_guide, CONSTRAINT, VIEW_GUIDE, ConstraintViewChild)
ConstraintViewGuide * constraint_view_guide_new (void);
#define CONSTRAINT_VIEW_CONSTRAINT_TYPE (constraint_view_constraint_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewConstraint, constraint_view_constraint, CONSTRAINT, VIEW_CONSTRAINT, ConstraintViewChild)
ConstraintViewGuide * constraint_view_constraint_new (void);

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/*
* Copyright © 2019 Red Hat, Inc
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#define CONSTRAINT_VIEW_CHILD_TYPE (constraint_view_get_type ())
G_DECLARE_TYPE (ConstraintViewChild, constraint_view_child, CONSTRAINT, VIEW_CHILD, GObject)
#define CONSTRAINT_VIEW_WIDGET_TYPE (constraint_view_widget_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewWidget, constraint_view_widget, CONSTRAINT, VIEW_WIDGET, ConstraintViewChild)
ConstraintViewWidget * constraint_view_widget_new (void);
#define CONSTRAINT_VIEW_GUIDE_TYPE (constraint_view_guide_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewGuide, constraint_view_guide, CONSTRAINT, VIEW_GUIDE, ConstraintViewChild)
ConstraintViewGuide * constraint_view_guide_new (void);
#define CONSTRAINT_VIEW_CONSTRAINT_TYPE (constraint_view_constraint_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintViewConstraint, constraint_view_constraint, CONSTRAINT, VIEW_CONSTRAINT, ConstraintViewChild)
ConstraintViewGuide * constraint_view_constraint_new (void);

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/* Copyright (C) 2019 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <gtk/gtk.h>
#include "constraint-view.h"
struct _ConstraintView
{
GtkWidget parent;
GListStore *store;
};
G_DEFINE_TYPE (ConstraintView, constraint_view, GTK_TYPE_WIDGET);
static void
constraint_view_dispose (GObject *object)
{
ConstraintView *view = CONSTRAINT_VIEW (object);
GtkWidget *child;
while ((child = gtk_widget_get_first_child (GTK_WIDGET (view))) != NULL)
gtk_widget_unparent (child);
g_clear_object (&view->store);
G_OBJECT_CLASS (constraint_view_parent_class)->dispose (object);
}
static void
constraint_view_class_init (ConstraintViewClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->dispose = constraint_view_dispose;
gtk_widget_class_set_css_name (widget_class, "constraintview");
}
static void
constraint_view_init (ConstraintView *self)
{
gtk_widget_set_layout_manager (GTK_WIDGET (self),
gtk_constraint_layout_new ());
self->store = g_list_store_new (G_TYPE_OBJECT);
}
ConstraintView *
constraint_view_new (void)
{
return g_object_new (CONSTRAINT_VIEW_TYPE, NULL);
}
void
constraint_view_add_child (ConstraintView *view,
const char *name)
{
GtkWidget *frame;
GtkWidget *label;
label = gtk_label_new (name);
frame = gtk_frame_new (NULL);
gtk_style_context_add_class (gtk_widget_get_style_context (frame), "child");
g_object_set_data_full (G_OBJECT (frame), "name", g_strdup (name), g_free);
gtk_container_add (GTK_CONTAINER (frame), label);
gtk_widget_set_parent (frame, GTK_WIDGET (view));
g_list_store_append (view->store, frame);
}
void
constraint_view_remove_child (ConstraintView *view,
GtkWidget *child)
{
int i;
gtk_widget_unparent (child);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (view->store)); i++)
{
if (g_list_model_get_item (G_LIST_MODEL (view->store), i) == (GObject*)child)
{
g_list_store_remove (view->store, i);
break;
}
}
}
void
constraint_view_add_guide (ConstraintView *view,
GtkConstraintGuide *guide)
{
GtkLayoutManager *manager;
GtkWidget *frame;
GtkWidget *label;
const char *name;
GtkConstraint *constraint;
name = (const char *)g_object_get_data (G_OBJECT (guide), "name");
label = gtk_label_new (name);
frame = gtk_frame_new (NULL);
gtk_style_context_add_class (gtk_widget_get_style_context (frame), "guide");
g_object_set_data_full (G_OBJECT (frame), "name", g_strdup (name), g_free);
gtk_container_add (GTK_CONTAINER (frame), label);
gtk_widget_set_parent (frame, GTK_WIDGET (view));
g_object_set_data (G_OBJECT (guide), "frame", frame);
g_object_set_data (G_OBJECT (guide), "label", label);
manager = gtk_widget_get_layout_manager (GTK_WIDGET (view));
gtk_constraint_layout_add_guide (GTK_CONSTRAINT_LAYOUT (manager),
g_object_ref (guide));
constraint = gtk_constraint_new (frame,
GTK_CONSTRAINT_ATTRIBUTE_LEFT,
GTK_CONSTRAINT_RELATION_EQ,
guide,
GTK_CONSTRAINT_ATTRIBUTE_LEFT,
1.0, 0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED);
gtk_constraint_layout_add_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
g_object_set_data (G_OBJECT (guide), "left-constraint", constraint);
constraint = gtk_constraint_new (frame,
GTK_CONSTRAINT_ATTRIBUTE_TOP,
GTK_CONSTRAINT_RELATION_EQ,
guide,
GTK_CONSTRAINT_ATTRIBUTE_TOP,
1.0, 0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED);
gtk_constraint_layout_add_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
g_object_set_data (G_OBJECT (guide), "top-constraint", constraint);
constraint = gtk_constraint_new (frame,
GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
GTK_CONSTRAINT_RELATION_EQ,
guide,
GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
1.0, 0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED);
gtk_constraint_layout_add_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
g_object_set_data (G_OBJECT (guide), "width-constraint", constraint);
constraint = gtk_constraint_new (frame,
GTK_CONSTRAINT_ATTRIBUTE_HEIGHT,
GTK_CONSTRAINT_RELATION_EQ,
guide,
GTK_CONSTRAINT_ATTRIBUTE_HEIGHT,
1.0, 0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED);
gtk_constraint_layout_add_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
g_object_set_data (G_OBJECT (guide), "height-constraint", constraint);
g_list_store_append (view->store, guide);
}
void
constraint_view_guide_changed (ConstraintView *view,
GtkConstraintGuide *guide)
{
GtkWidget *label;
const char *name;
int i;
name = (const char *)g_object_get_data (G_OBJECT (guide), "name");
label = (GtkWidget *)g_object_get_data (G_OBJECT (guide), "label");
gtk_label_set_label (GTK_LABEL (label), name);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (view->store)); i++)
{
if (g_list_model_get_item (G_LIST_MODEL (view->store), i) == (GObject*)guide)
{
g_list_model_items_changed (G_LIST_MODEL (view->store), i, 1, 1);
break;
}
}
}
void
constraint_view_remove_guide (ConstraintView *view,
GtkConstraintGuide *guide)
{
GtkLayoutManager *manager;
GtkWidget *frame;
GtkConstraint *constraint;
int i;
manager = gtk_widget_get_layout_manager (GTK_WIDGET (view));
constraint = (GtkConstraint*)g_object_get_data (G_OBJECT (guide), "left-constraint");
gtk_constraint_layout_remove_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
constraint = (GtkConstraint*)g_object_get_data (G_OBJECT (guide), "top-constraint");
gtk_constraint_layout_remove_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
constraint = (GtkConstraint*)g_object_get_data (G_OBJECT (guide), "width-constraint");
gtk_constraint_layout_remove_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
constraint = (GtkConstraint*)g_object_get_data (G_OBJECT (guide), "height-constraint");
gtk_constraint_layout_remove_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
frame = (GtkWidget *)g_object_get_data (G_OBJECT (guide), "frame");
gtk_widget_unparent (frame);
gtk_constraint_layout_remove_guide (GTK_CONSTRAINT_LAYOUT (manager),
guide);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (view->store)); i++)
{
if (g_list_model_get_item (G_LIST_MODEL (view->store), i) == (GObject*)guide)
{
g_list_store_remove (view->store, i);
break;
}
}
}
void
constraint_view_add_constraint (ConstraintView *view,
GtkConstraint *constraint)
{
GtkLayoutManager *manager;
manager = gtk_widget_get_layout_manager (GTK_WIDGET (view));
gtk_constraint_layout_add_constraint (GTK_CONSTRAINT_LAYOUT (manager),
g_object_ref (constraint));
g_list_store_append (view->store, constraint);
}
void
constraint_view_remove_constraint (ConstraintView *view,
GtkConstraint *constraint)
{
GtkLayoutManager *manager;
int i;
manager = gtk_widget_get_layout_manager (GTK_WIDGET (view));
gtk_constraint_layout_remove_constraint (GTK_CONSTRAINT_LAYOUT (manager),
constraint);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (view->store)); i++)
{
if (g_list_model_get_item (G_LIST_MODEL (view->store), i) == (GObject*)constraint)
{
g_list_store_remove (view->store, i);
break;
}
}
}
GListModel *
constraint_view_get_model (ConstraintView *view)
{
return G_LIST_MODEL (view->store);
}

View File

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/*
* Copyright © 2019 Red Hat, Inc
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#define CONSTRAINT_VIEW_TYPE (constraint_view_get_type ())
G_DECLARE_FINAL_TYPE (ConstraintView, constraint_view, CONSTRAINT, VIEW, GtkWidget)
ConstraintView * constraint_view_new (void);
void constraint_view_add_child (ConstraintView *view,
const char *name);
void constraint_view_remove_child (ConstraintView *view,
GtkWidget *child);
void constraint_view_add_guide (ConstraintView *view,
GtkConstraintGuide *guide);
void constraint_view_remove_guide (ConstraintView *view,
GtkConstraintGuide *guide);
void constraint_view_guide_changed (ConstraintView *view,
GtkConstraintGuide *guide);
void constraint_view_add_constraint (ConstraintView *view,
GtkConstraint *constraint);
void constraint_view_remove_constraint (ConstraintView *view,
GtkConstraint *constraint);
GListModel * constraint_view_get_model (ConstraintView *view);

View File

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/*
* Copyright © 2019 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#include "config.h"
#include "guide-editor.h"
struct _GuideEditor
{
GtkWidget parent_instance;
GtkWidget *grid;
GtkWidget *name;
GtkWidget *min_width;
GtkWidget *min_height;
GtkWidget *nat_width;
GtkWidget *nat_height;
GtkWidget *max_width;
GtkWidget *max_height;
GtkWidget *strength;
GtkWidget *button;
GtkConstraintGuide *guide;
gboolean constructed;
};
enum {
PROP_GUIDE = 1,
LAST_PROP
};
static GParamSpec *pspecs[LAST_PROP];
enum {
DONE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
G_DEFINE_TYPE(GuideEditor, guide_editor, GTK_TYPE_WIDGET);
static void
guide_strength_combo (GtkWidget *combo)
{
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "weak", "Weak");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "medium", "Medium");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "strong", "Strong");
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (combo), "required", "Required");
}
static GtkConstraintStrength
get_strength (const char *id)
{
GtkConstraintStrength strength;
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_STRENGTH);
GEnumValue *value = g_enum_get_value_by_nick (class, id);
strength = value->value;
g_type_class_unref (class);
return strength;
}
const char *
get_strength_nick (GtkConstraintStrength strength)
{
GEnumClass *class = g_type_class_ref (GTK_TYPE_CONSTRAINT_STRENGTH);
GEnumValue *value = g_enum_get_value (class, strength);
const char *nick = value->value_nick;
g_type_class_unref (class);
return nick;
}
static void
create_guide (GtkButton *button,
GuideEditor *editor)
{
#if 0
const char *id;
int strength;
#endif
const char *name;
int w, h;
GtkConstraintGuide *guide;
//guide = gtk_constraint_guide_new ();
if (editor->guide)
guide = g_object_ref (editor->guide);
else
guide = g_object_new (GTK_TYPE_CONSTRAINT_GUIDE, NULL);
name = gtk_editable_get_text (GTK_EDITABLE (editor->name));
g_object_set_data_full (G_OBJECT (guide), "name", g_strdup (name), g_free);
w = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->min_width));
h = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->min_height));
//gtk_constraint_guide_set_min_size (guide, w, h);
g_object_set (guide, "min-width", w, "min-height", h, NULL);
w = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->nat_width));
h = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->nat_height));
//gtk_constraint_guide_set_nat_size (guide, w, h);
g_object_set (guide, "nat-width", w, "nat-height", h, NULL);
#if 0
w = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->max_width));
h = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (editor->max_height));
gtk_constraint_guide_set_max_size (guide, w, h);
id = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->strength));
strength = get_strength (id);
gtk_constraint_guide_set_strength (guide, strength);
#endif
g_signal_emit (editor, signals[DONE], 0, guide);
g_object_unref (guide);
}
static void
guide_editor_init (GuideEditor *editor)
{
gtk_widget_init_template (GTK_WIDGET (editor));
}
static int guide_counter;
static void
guide_editor_constructed (GObject *object)
{
GuideEditor *editor = GUIDE_EDITOR (object);
guide_strength_combo (editor->strength);
gtk_widget_set_sensitive (editor->max_width, FALSE);
gtk_widget_set_sensitive (editor->max_height, FALSE);
gtk_widget_set_sensitive (editor->strength, FALSE);
if (editor->guide)
{
#if 0
GtkConstaintStrength strength;
#endif
const char *nick;
int w, h;
nick = (char *)g_object_get_data (G_OBJECT (editor->guide), "name");
gtk_editable_set_text (GTK_EDITABLE (editor->name), nick);
//gtk_constaint_guide_get_min_size (editor->guide, &w, &h);
g_object_get (editor->guide, "min-width", &w, "min-height", &h, NULL);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->min_width), w);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->min_height), h);
//gtk_constaint_guide_get_nat_size (editor->guide, &w, &h);
g_object_get (editor->guide, "nat-width", &w, "nat-height", &h, NULL);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->nat_width), w);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->nat_height), h);
#if 0
gtk_constaint_guide_get_max_size (editor->guide, &w, &h);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->max_width), w);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->max_height), h);
strength = gtk_guide_get_strength (editor->guide);
nick = get_strength_nick (strength);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->strength), nick);
#endif
gtk_button_set_label (GTK_BUTTON (editor->button), "Apply");
}
else
{
char *name;
guide_counter++;
name = g_strdup_printf ("Guide %d", guide_counter);
gtk_editable_set_text (GTK_EDITABLE (editor->name), name);
g_free (name);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->min_width), 0.0);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->min_height), 0.0);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->nat_width), 0.0);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->nat_height), 0.0);
#if 0
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->max_width), G_MAXINT);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (editor->max_height), G_MAXINT);
gtk_combo_box_set_active_id (GTK_COMBO_BOX (editor->strength), "medium");
#endif
gtk_button_set_label (GTK_BUTTON (editor->button), "Create");
}
editor->constructed = TRUE;
}
static void
guide_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GuideEditor *self = GUIDE_EDITOR (object);
switch (property_id)
{
case PROP_GUIDE:
self->guide = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
guide_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GuideEditor *self = GUIDE_EDITOR (object);
switch (property_id)
{
case PROP_GUIDE:
g_value_set_object (value, self->guide);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
guide_editor_dispose (GObject *object)
{
GuideEditor *self = (GuideEditor *)object;
g_clear_pointer (&self->grid, gtk_widget_unparent);
g_clear_object (&self->guide);
G_OBJECT_CLASS (guide_editor_parent_class)->dispose (object);
}
static void
guide_editor_class_init (GuideEditorClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
object_class->constructed = guide_editor_constructed;
object_class->dispose = guide_editor_dispose;
object_class->set_property = guide_editor_set_property;
object_class->get_property = guide_editor_get_property;
pspecs[PROP_GUIDE] =
g_param_spec_object ("guide", "guide", "guide",
GTK_TYPE_CONSTRAINT_GUIDE,
G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_properties (object_class, LAST_PROP, pspecs);
signals[DONE] =
g_signal_new ("done",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
NULL,
G_TYPE_NONE, 1, GTK_TYPE_CONSTRAINT_GUIDE);
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
gtk_widget_class_set_template_from_resource (widget_class,
"/org/gtk/gtk4/constraint-editor/guide-editor.ui");
gtk_widget_class_bind_template_child (widget_class, GuideEditor, grid);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, name);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, min_width);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, min_height);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, nat_width);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, nat_height);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, max_width);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, max_height);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, strength);
gtk_widget_class_bind_template_child (widget_class, GuideEditor, button);
gtk_widget_class_bind_template_callback (widget_class, create_guide);
}
GuideEditor *
guide_editor_new (GtkConstraintGuide *guide)
{
return g_object_new (GUIDE_EDITOR_TYPE,
"guide", guide,
NULL);
}

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/*
* Copyright © 2019 Red Hat, Inc
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen
*/
#pragma once
#include <gtk/gtk.h>
#define GUIDE_EDITOR_TYPE (guide_editor_get_type ())
G_DECLARE_FINAL_TYPE (GuideEditor, guide_editor, GUIDE, EDITOR, GtkWidget)
GuideEditor * guide_editor_new (GtkConstraintGuide *guide);

View File

@@ -0,0 +1,188 @@
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<object class="GtkAdjustment" id="min_width_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<object class="GtkAdjustment" id="min_height_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<object class="GtkAdjustment" id="nat_width_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<object class="GtkAdjustment" id="nat_height_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<object class="GtkAdjustment" id="max_width_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<object class="GtkAdjustment" id="max_height_adj">
<property name="lower">0</property>
<property name="upper">2147483647</property>
<property name="step-increment">1</property>
<property name="page-increment">10</property>
<property name="page-size">0</property>
</object>
<template class="GuideEditor" parent="GtkWidget">
<child>
<object class="GtkGrid" id="grid">
<property name="margin">20</property>
<property name="row-spacing">10</property>
<property name="column-spacing">10</property>
<child>
<object class="GtkLabel">
<property name="label">Name</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">0</property>
</layout>
</object>
</child>
<child>
<object class="GtkEntry" id="name">
<property name="max-width-chars">20</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">0</property>
<property name="column-span">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Min Size</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="min_width">
<property name="adjustment">min_width_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="min_height">
<property name="adjustment">min_height_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">1</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Nat Size</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="nat_width">
<property name="adjustment">nat_width_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="nat_height">
<property name="adjustment">nat_height_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Max Size</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="max_width">
<property name="adjustment">max_width_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkSpinButton" id="max_height">
<property name="adjustment">max_height_adj</property>
<property name="max-width-chars">5</property>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">3</property>
</layout>
</object>
</child>
<child>
<object class="GtkLabel">
<property name="label">Strength</property>
<layout>
<property name="left-attach">0</property>
<property name="top-attach">4</property>
</layout>
</object>
</child>
<child>
<object class="GtkComboBoxText" id="strength">
<layout>
<property name="left-attach">1</property>
<property name="top-attach">4</property>
<property name="column-span">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkButton" id="button">
<property name="label">Create</property>
<signal name="clicked" handler="create_guide"/>
<layout>
<property name="left-attach">2</property>
<property name="top-attach">5</property>
</layout>
</object>
</child>
</object>
</child>
</template>
</interface>

View File

@@ -0,0 +1,28 @@
/*
* Copyright © 2019 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen <mclasen@redhat.com>
*/
#include "config.h"
#include <constraint-editor-application.h>
int
main (int argc, char *argv[])
{
return g_application_run (G_APPLICATION (constraint_editor_application_new ()), argc, argv);
}

View File

@@ -0,0 +1,19 @@
constraint_editor_sources = [
'main.c',
'constraint-editor-application.c',
'constraint-editor-window.c',
'constraint-view.c',
'constraint-editor.c',
'guide-editor.c',
]
constraint_editor_resources = gnome.compile_resources('constraint_editor_resources',
'constraint-editor.gresource.xml',
source_dir: '.')
executable('gtk4-constraint-editor',
constraint_editor_sources, constraint_editor_resources,
dependencies: libgtk_dep,
include_directories: confinc,
gui_app: true,
install: false)

View File

@@ -1,4 +1,4 @@
/* Constraints
/* Constraints/Simple
*
* GtkConstraintLayout provides a layout manager that uses relations
* between widgets (also known as "constraints") to compute the position
@@ -74,6 +74,22 @@ static void
build_constraints (SimpleGrid *self,
GtkConstraintLayout *manager)
{
GtkConstraintGuide *guide;
guide = g_object_new (GTK_TYPE_CONSTRAINT_GUIDE,
"min-width", 10,
"min-height", 10,
"nat-width", 100,
"nat-height", 10,
NULL);
gtk_constraint_layout_add_guide (manager, guide);
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new_constant (GTK_CONSTRAINT_TARGET (self->button1),
GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
GTK_CONSTRAINT_RELATION_LE,
200.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (NULL,
GTK_CONSTRAINT_ATTRIBUTE_START,
@@ -94,12 +110,21 @@ build_constraints (SimpleGrid *self,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (self->button1,
GTK_CONSTRAINT_ATTRIBUTE_END,
GTK_CONSTRAINT_RELATION_EQ,
guide,
GTK_CONSTRAINT_ATTRIBUTE_START,
1.0,
0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (guide,
GTK_CONSTRAINT_ATTRIBUTE_END,
GTK_CONSTRAINT_RELATION_EQ,
self->button2,
GTK_CONSTRAINT_ATTRIBUTE_START,
1.0,
-12.0,
0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (self->button2,

View File

@@ -0,0 +1,245 @@
/* Constraints/Interactive
*
* Demonstrate how constraints can be updates during
* user interaction.
*/
#include <glib/gi18n.h>
#include <gtk/gtk.h>
G_DECLARE_FINAL_TYPE (InteractiveGrid, interactive_grid, INTERACTIVE, GRID, GtkWidget)
struct _InteractiveGrid
{
GtkWidget parent_instance;
GtkWidget *button1, *button2;
GtkWidget *button3;
GtkConstraintGuide *guide;
GtkConstraint *constraint;
};
G_DEFINE_TYPE (InteractiveGrid, interactive_grid, GTK_TYPE_WIDGET)
static void
interactive_grid_destroy (GtkWidget *widget)
{
InteractiveGrid *self = INTERACTIVE_GRID (widget);
g_clear_pointer (&self->button1, gtk_widget_destroy);
g_clear_pointer (&self->button2, gtk_widget_destroy);
g_clear_pointer (&self->button3, gtk_widget_destroy);
GTK_WIDGET_CLASS (interactive_grid_parent_class)->destroy (widget);
}
static void
interactive_grid_class_init (InteractiveGridClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->destroy = interactive_grid_destroy;
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_CONSTRAINT_LAYOUT);
}
static void
build_constraints (InteractiveGrid *self,
GtkConstraintLayout *manager)
{
self->guide = g_object_new (GTK_TYPE_CONSTRAINT_GUIDE, NULL);
gtk_constraint_layout_add_guide (manager, self->guide);
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new_constant (GTK_CONSTRAINT_TARGET (self->guide),
GTK_CONSTRAINT_ATTRIBUTE_WIDTH,
GTK_CONSTRAINT_RELATION_EQ,
0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (NULL,
GTK_CONSTRAINT_ATTRIBUTE_START,
GTK_CONSTRAINT_RELATION_EQ,
GTK_CONSTRAINT_TARGET (self->button1),
GTK_CONSTRAINT_ATTRIBUTE_START,
1.0,
-8.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (GTK_CONSTRAINT_TARGET (self->button1),
GTK_CONSTRAINT_ATTRIBUTE_END,
GTK_CONSTRAINT_RELATION_EQ,
GTK_CONSTRAINT_TARGET (self->guide),
GTK_CONSTRAINT_ATTRIBUTE_START,
1.0,
0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (GTK_CONSTRAINT_TARGET (self->button2),
GTK_CONSTRAINT_ATTRIBUTE_START,
GTK_CONSTRAINT_RELATION_EQ,
GTK_CONSTRAINT_TARGET (self->guide),
GTK_CONSTRAINT_ATTRIBUTE_END,
1.0,
0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (GTK_CONSTRAINT_TARGET (self->button2),
GTK_CONSTRAINT_ATTRIBUTE_END,
GTK_CONSTRAINT_RELATION_EQ,
NULL,
GTK_CONSTRAINT_ATTRIBUTE_END,
1.0,
-8.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (NULL,
GTK_CONSTRAINT_ATTRIBUTE_START,
GTK_CONSTRAINT_RELATION_EQ,
GTK_CONSTRAINT_TARGET (self->button3),
GTK_CONSTRAINT_ATTRIBUTE_START,
1.0,
-8.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (GTK_CONSTRAINT_TARGET (self->button3),
GTK_CONSTRAINT_ATTRIBUTE_END,
GTK_CONSTRAINT_RELATION_EQ,
GTK_CONSTRAINT_TARGET (self->guide),
GTK_CONSTRAINT_ATTRIBUTE_START,
1.0,
0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (NULL,
GTK_CONSTRAINT_ATTRIBUTE_TOP,
GTK_CONSTRAINT_RELATION_EQ,
GTK_CONSTRAINT_TARGET (self->button1),
GTK_CONSTRAINT_ATTRIBUTE_TOP,
1.0,
-8.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (GTK_CONSTRAINT_TARGET (self->button2),
GTK_CONSTRAINT_ATTRIBUTE_TOP,
GTK_CONSTRAINT_RELATION_EQ,
GTK_CONSTRAINT_TARGET (self->button1),
GTK_CONSTRAINT_ATTRIBUTE_BOTTOM,
1.0,
0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (GTK_CONSTRAINT_TARGET (self->button3),
GTK_CONSTRAINT_ATTRIBUTE_TOP,
GTK_CONSTRAINT_RELATION_EQ,
GTK_CONSTRAINT_TARGET (self->button2),
GTK_CONSTRAINT_ATTRIBUTE_BOTTOM,
1.0,
0.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
gtk_constraint_layout_add_constraint (manager,
gtk_constraint_new (GTK_CONSTRAINT_TARGET (self->button3),
GTK_CONSTRAINT_ATTRIBUTE_BOTTOM,
GTK_CONSTRAINT_RELATION_EQ,
NULL,
GTK_CONSTRAINT_ATTRIBUTE_BOTTOM,
1.0,
-8.0,
GTK_CONSTRAINT_STRENGTH_REQUIRED));
}
static void
drag_cb (GtkGestureDrag *drag,
double offset_x,
double offset_y,
InteractiveGrid *self)
{
GtkConstraintLayout *layout = GTK_CONSTRAINT_LAYOUT (gtk_widget_get_layout_manager (GTK_WIDGET (self)));
double x, y;
if (self->constraint)
{
gtk_constraint_layout_remove_constraint (layout, self->constraint);
g_clear_object (&self->constraint);
}
gtk_gesture_drag_get_start_point (drag, &x, &y);
self->constraint = gtk_constraint_new_constant (GTK_CONSTRAINT_TARGET (self->guide),
GTK_CONSTRAINT_ATTRIBUTE_LEFT,
GTK_CONSTRAINT_RELATION_EQ,
x + offset_x,
GTK_CONSTRAINT_STRENGTH_REQUIRED);
gtk_constraint_layout_add_constraint (layout, g_object_ref (self->constraint));
gtk_widget_queue_allocate (GTK_WIDGET (self));
}
static void
interactive_grid_init (InteractiveGrid *self)
{
GtkWidget *widget = GTK_WIDGET (self);
GtkGesture *drag;
self->button1 = gtk_button_new_with_label ("Child 1");
gtk_widget_set_parent (self->button1, widget);
gtk_widget_set_name (self->button1, "button1");
self->button2 = gtk_button_new_with_label ("Child 2");
gtk_widget_set_parent (self->button2, widget);
gtk_widget_set_name (self->button2, "button2");
self->button3 = gtk_button_new_with_label ("Child 3");
gtk_widget_set_parent (self->button3, widget);
gtk_widget_set_name (self->button3, "button3");
GtkLayoutManager *manager = gtk_widget_get_layout_manager (GTK_WIDGET (self));
build_constraints (self, GTK_CONSTRAINT_LAYOUT (manager));
drag = gtk_gesture_drag_new ();
g_signal_connect (drag, "drag-update", G_CALLBACK (drag_cb), self);
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (drag));
}
GtkWidget *
do_constraints2 (GtkWidget *do_widget)
{
static GtkWidget *window;
if (!window)
{
GtkWidget *header, *box, *grid, *button;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_display (GTK_WINDOW (window), gtk_widget_get_display (do_widget));
header = gtk_header_bar_new ();
gtk_header_bar_set_title (GTK_HEADER_BAR (header), "Constraints");
gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), FALSE);
gtk_window_set_titlebar (GTK_WINDOW (window), header);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_add (GTK_CONTAINER (window), box);
grid = g_object_new (interactive_grid_get_type (), NULL);
gtk_widget_set_hexpand (grid, TRUE);
gtk_widget_set_vexpand (grid, TRUE);
gtk_container_add (GTK_CONTAINER (box), grid);
button = gtk_button_new_with_label ("Close");
gtk_container_add (GTK_CONTAINER (box), button);
gtk_widget_set_hexpand (grid, TRUE);
g_signal_connect_swapped (button, "clicked",
G_CALLBACK (gtk_widget_destroy), window);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
return window;
}

View File

@@ -0,0 +1,165 @@
/* Constraints/VFL
*
* GtkConstraintLayout allows defining constraints using a
* compact syntax called Visual Format Language, or VFL.
*/
#include <glib/gi18n.h>
#include <gtk/gtk.h>
G_DECLARE_FINAL_TYPE (VflGrid, vfl_grid, VFL, GRID, GtkWidget)
struct _VflGrid
{
GtkWidget parent_instance;
GtkWidget *button1, *button2;
GtkWidget *button3;
};
G_DEFINE_TYPE (VflGrid, vfl_grid, GTK_TYPE_WIDGET)
static void
vfl_grid_destroy (GtkWidget *widget)
{
VflGrid *self = VFL_GRID (widget);
g_clear_pointer (&self->button1, gtk_widget_destroy);
g_clear_pointer (&self->button2, gtk_widget_destroy);
g_clear_pointer (&self->button3, gtk_widget_destroy);
GTK_WIDGET_CLASS (vfl_grid_parent_class)->destroy (widget);
}
static void
vfl_grid_class_init (VflGridClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->destroy = vfl_grid_destroy;
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_CONSTRAINT_LAYOUT);
}
/* Layout:
*
* +-----------------------------+
* | +-----------+ +-----------+ |
* | | Child 1 | | Child 2 | |
* | +-----------+ +-----------+ |
* | +-------------------------+ |
* | | Child 3 | |
* | +-------------------------+ |
* +-----------------------------+
*
* Constraints:
*
* super.start = child1.start - 8
* child1.width = child2.width
* child1.end = child2.start - 12
* child2.end = super.end - 8
* super.start = child3.start - 8
* child3.end = super.end - 8
* super.top = child1.top - 8
* super.top = child2.top - 8
* child1.bottom = child3.top - 12
* child2.bottom = child3.top - 12
* child3.height = child1.height
* child3.height = child2.height
* child3.bottom = super.bottom - 8
*
* Visual format:
*
* H:|-8-[view1(==view2)-12-[view2]-8-|
* H:|-8-[view3]-8-|
* V:|-8-[view1]-12-[view3(==view1)]-8-|
* V:|-8-[view2]-12-[view3(==view2)]-8-|
*/
static void
build_constraints (VflGrid *self,
GtkConstraintLayout *manager)
{
const char * const vfl[] = {
"H:|-[button1(==button2)]-12-[button2]-|",
"H:|-[button3]-|",
"V:|-[button1]-12-[button3(==button1)]-|",
"V:|-[button2]-12-[button3(==button2)]-|",
};
GError *error = NULL;
gtk_constraint_layout_add_constraints_from_description (manager, vfl, G_N_ELEMENTS (vfl),
8, 8,
&error,
"button1", self->button1,
"button2", self->button2,
"button3", self->button3,
NULL);
if (error != NULL)
{
g_printerr ("VFL parsing error:\n%s", error->message);
g_error_free (error);
}
}
static void
vfl_grid_init (VflGrid *self)
{
GtkWidget *widget = GTK_WIDGET (self);
self->button1 = gtk_button_new_with_label ("Child 1");
gtk_widget_set_parent (self->button1, widget);
gtk_widget_set_name (self->button1, "button1");
self->button2 = gtk_button_new_with_label ("Child 2");
gtk_widget_set_parent (self->button2, widget);
gtk_widget_set_name (self->button2, "button2");
self->button3 = gtk_button_new_with_label ("Child 3");
gtk_widget_set_parent (self->button3, widget);
gtk_widget_set_name (self->button3, "button3");
GtkLayoutManager *manager = gtk_widget_get_layout_manager (GTK_WIDGET (self));
build_constraints (self, GTK_CONSTRAINT_LAYOUT (manager));
}
GtkWidget *
do_constraints3 (GtkWidget *do_widget)
{
static GtkWidget *window;
if (!window)
{
GtkWidget *header, *box, *grid, *button;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_display (GTK_WINDOW (window), gtk_widget_get_display (do_widget));
header = gtk_header_bar_new ();
gtk_header_bar_set_title (GTK_HEADER_BAR (header), "Constraints");
gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), FALSE);
gtk_window_set_titlebar (GTK_WINDOW (window), header);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_add (GTK_CONTAINER (window), box);
grid = g_object_new (vfl_grid_get_type (), NULL);
gtk_widget_set_hexpand (grid, TRUE);
gtk_widget_set_vexpand (grid, TRUE);
gtk_container_add (GTK_CONTAINER (box), grid);
button = gtk_button_new_with_label ("Close");
gtk_container_add (GTK_CONTAINER (box), button);
gtk_widget_set_hexpand (grid, TRUE);
g_signal_connect_swapped (button, "clicked",
G_CALLBACK (gtk_widget_destroy), window);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
return window;
}

View File

@@ -151,6 +151,8 @@
<file>colorsel.c</file>
<file>combobox.c</file>
<file>constraints.c</file>
<file>constraints2.c</file>
<file>constraints3.c</file>
<file>css_accordion.c</file>
<file>css_basics.c</file>
<file>css_blendmodes.c</file>

View File

@@ -9,6 +9,8 @@ demos = files([
'colorsel.c',
'combobox.c',
'constraints.c',
'constraints2.c',
'constraints3.c',
'css_accordion.c',
'css_basics.c',
'css_blendmodes.c',

View File

@@ -1,3 +1,4 @@
subdir('constraint-editor')
subdir('gtk-demo')
subdir('icon-browser')
subdir('node-editor')

View File

@@ -561,13 +561,6 @@ prop_actions_connect (GtkActionMuxer *muxer)
}
}
static void
prop_actions_disconnect (GtkActionMuxer *muxer)
{
if (muxer->widget)
g_signal_handlers_disconnect_by_func (muxer->widget,
prop_action_notify, muxer);
}
static gboolean
gtk_action_muxer_query_action (GActionGroup *action_group,
@@ -819,8 +812,6 @@ gtk_action_muxer_dispose (GObject *object)
{
GtkActionMuxer *muxer = GTK_ACTION_MUXER (object);
prop_actions_disconnect (muxer);
if (muxer->parent)
{
g_signal_handlers_disconnect_by_func (muxer->parent, gtk_action_muxer_action_added_to_parent, muxer);

View File

@@ -46,10 +46,10 @@
#include "gtkwidget.h"
enum {
PROP_TARGET_WIDGET = 1,
PROP_TARGET = 1,
PROP_TARGET_ATTRIBUTE,
PROP_RELATION,
PROP_SOURCE_WIDGET,
PROP_SOURCE,
PROP_SOURCE_ATTRIBUTE,
PROP_MULTIPLIER,
PROP_CONSTANT,
@@ -72,8 +72,8 @@ gtk_constraint_set_property (GObject *gobject,
switch (prop_id)
{
case PROP_TARGET_WIDGET:
self->target_widget = g_value_get_object (value);
case PROP_TARGET:
self->target = g_value_get_object (value);
break;
case PROP_TARGET_ATTRIBUTE:
@@ -84,8 +84,8 @@ gtk_constraint_set_property (GObject *gobject,
self->relation = g_value_get_enum (value);
break;
case PROP_SOURCE_WIDGET:
self->source_widget = g_value_get_object (value);
case PROP_SOURCE:
self->source = g_value_get_object (value);
break;
case PROP_SOURCE_ATTRIBUTE:
@@ -120,8 +120,8 @@ gtk_constraint_get_property (GObject *gobject,
switch (prop_id)
{
case PROP_TARGET_WIDGET:
g_value_set_object (value, self->target_widget);
case PROP_TARGET:
g_value_set_object (value, self->target);
break;
case PROP_TARGET_ATTRIBUTE:
@@ -132,8 +132,8 @@ gtk_constraint_get_property (GObject *gobject,
g_value_set_enum (value, self->relation);
break;
case PROP_SOURCE_WIDGET:
g_value_set_object (value, self->source_widget);
case PROP_SOURCE:
g_value_set_object (value, self->source);
break;
case PROP_SOURCE_ATTRIBUTE:
@@ -178,31 +178,31 @@ gtk_constraint_class_init (GtkConstraintClass *klass)
gobject_class->finalize = gtk_constraint_finalize;
/**
* GtkConstraint:target-widget:
* GtkConstraint:target:
*
* The target widget of the constraint.
* The target of the constraint.
*
* The constraint will set the #GtkConstraint:target-attribute of the
* target widget using the #GtkConstraint:source-attribute of the source
* target using the #GtkConstraint:source-attribute of the source
* widget.
*/
obj_props[PROP_TARGET_WIDGET] =
g_param_spec_object ("target-widget",
P_("Target Widget"),
P_("The target widget of the constraint"),
GTK_TYPE_WIDGET,
obj_props[PROP_TARGET] =
g_param_spec_object ("target",
P_("Target"),
P_("The target of the constraint"),
GTK_TYPE_CONSTRAINT_TARGET,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT_ONLY);
/**
* GtkConstraint:target-attribute:
*
* The attribute of the #GtkConstraint:target-widget set by the constraint.
* The attribute of the #GtkConstraint:target set by the constraint.
*/
obj_props[PROP_TARGET_ATTRIBUTE] =
g_param_spec_enum ("target-attribute",
P_("Target Attribute"),
P_("The attribute of the target widget set by the constraint"),
P_("The attribute of the target set by the constraint"),
GTK_TYPE_CONSTRAINT_ATTRIBUTE,
GTK_CONSTRAINT_ATTRIBUTE_NONE,
G_PARAM_READWRITE |
@@ -223,26 +223,25 @@ gtk_constraint_class_init (GtkConstraintClass *klass)
G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT_ONLY);
/**
* GtkConstraint:source-widget:
* GtkConstraint:source:
*
* The source widget of the constraint.
* The source of the constraint.
*
* The constraint will set the #GtkConstraint:target-attribute of the
* target widget using the #GtkConstraint:source-attribute of the source
* widget.
* target using the #GtkConstraint:source-attribute of the source.
*/
obj_props[PROP_SOURCE_WIDGET] =
g_param_spec_object ("source-widget",
P_("Source Widget"),
P_("The source widget of the constraint"),
GTK_TYPE_WIDGET,
obj_props[PROP_SOURCE] =
g_param_spec_object ("source",
P_("Source"),
P_("The source of the constraint"),
GTK_TYPE_CONSTRAINT_TARGET,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS |
G_PARAM_CONSTRUCT_ONLY);
/**
* GtkConstraint:source-attribute:
*
* The attribute of the #GtkConstraint:source-widget read by the constraint.
* The attribute of the #GtkConstraint:source read by the constraint.
*/
obj_props[PROP_SOURCE_ATTRIBUTE] =
g_param_spec_enum ("source-attribute",
@@ -316,39 +315,38 @@ gtk_constraint_init (GtkConstraint *self)
/**
* gtk_constraint_new:
* @target_widget: (nullable): a #GtkWidget
* @target_attribute: the attribute of @target_widget to be set
* @target: (nullable) (type GtkConstraintTarget): a #GtkConstraintTarget
* @target_attribute: the attribute of @target to be set
* @relation: the relation equivalence between @target_attribute and @source_attribute
* @source_widget: (nullable): a #GtkWidget
* @source_attribute: the attribute of @source_widget to be read
* @source: (nullable) (type GtkConstraintTarget): a #GtkConstraintTarget
* @source_attribute: the attribute of @source to be read
* @multiplier: a multiplication factor to be applied to @source_attribute
* @constant: a constant factor to be added to @source_attribute
* @strength: the strength of the constraint
*
* Creates a new #GtkConstraint representing a relation between a layout
* attribute on a source #GtkWidget and a layout attribute on a target
* #GtkWidget.
* attribute on a source and a layout attribute on a target.
*
* Returns: the newly created #GtkConstraint
*/
GtkConstraint *
gtk_constraint_new (GtkWidget *target_widget,
gtk_constraint_new (gpointer target,
GtkConstraintAttribute target_attribute,
GtkConstraintRelation relation,
GtkWidget *source_widget,
gpointer source,
GtkConstraintAttribute source_attribute,
double multiplier,
double constant,
int strength)
{
g_return_val_if_fail (target_widget == NULL || GTK_IS_WIDGET (target_widget), NULL);
g_return_val_if_fail (source_widget == NULL || GTK_IS_WIDGET (source_widget), NULL);
g_return_val_if_fail (target == NULL || GTK_IS_CONSTRAINT_TARGET (target), NULL);
g_return_val_if_fail (source == NULL || GTK_IS_CONSTRAINT_TARGET (source), NULL);
return g_object_new (GTK_TYPE_CONSTRAINT,
"target-widget", target_widget,
"target", target,
"target-attribute", target_attribute,
"relation", relation,
"source-widget", source_widget,
"source", source,
"source-attribute", source_attribute,
"multiplier", multiplier,
"constant", constant,
@@ -358,28 +356,28 @@ gtk_constraint_new (GtkWidget *target_widget,
/**
* gtk_constraint_new_constant:
* @target_widget: (nullable): a #GtkWidget
* @target_attribute: the attribute of @target_widget to be set
* @target: (nullable) (type GtkConstraintTarget): a #GtkConstraintTarget
* @target_attribute: the attribute of @target to be set
* @relation: the relation equivalence between @target_attribute and @constant
* @constant: a constant factor to be set on @target_attribute
* @strength: the strength of the constraint
*
* Creates a new #GtkConstraint representing a relation between a layout
* attribute on a target #GtkWidget and a constant value.
* attribute on a target and a constant value.
*
* Returns: the newly created #GtkConstraint
*/
GtkConstraint *
gtk_constraint_new_constant (GtkWidget *target_widget,
gtk_constraint_new_constant (gpointer target,
GtkConstraintAttribute target_attribute,
GtkConstraintRelation relation,
double constant,
int strength)
{
g_return_val_if_fail (target_widget == NULL || GTK_IS_WIDGET (target_widget), NULL);
g_return_val_if_fail (target == NULL || GTK_IS_CONSTRAINT_TARGET (target), NULL);
return g_object_new (GTK_TYPE_CONSTRAINT,
"target-widget", target_widget,
"target", target,
"target-attribute", target_attribute,
"relation", relation,
"source-attribute", GTK_CONSTRAINT_ATTRIBUTE_NONE,
@@ -401,7 +399,18 @@ gtk_constraint_get_target_widget (GtkConstraint *constraint)
{
g_return_val_if_fail (GTK_IS_CONSTRAINT (constraint), NULL);
return constraint->target_widget;
if (GTK_IS_WIDGET (constraint->target))
return GTK_WIDGET (constraint->target);
return NULL;
}
GtkConstraintTarget *
gtk_constraint_get_target (GtkConstraint *constraint)
{
g_return_val_if_fail (GTK_IS_CONSTRAINT (constraint), NULL);
return constraint->target;
}
GtkConstraintAttribute
@@ -425,7 +434,18 @@ gtk_constraint_get_source_widget (GtkConstraint *constraint)
{
g_return_val_if_fail (GTK_IS_CONSTRAINT (constraint), NULL);
return constraint->source_widget;
if (GTK_IS_WIDGET (constraint->source))
return GTK_WIDGET (constraint->source);
return NULL;
}
GtkConstraintTarget *
gtk_constraint_get_source (GtkConstraint *constraint)
{
g_return_val_if_fail (GTK_IS_CONSTRAINT (constraint), NULL);
return constraint->source;
}
GtkConstraintAttribute
@@ -552,7 +572,7 @@ gtk_constraint_is_constant (GtkConstraint *constraint)
{
g_return_val_if_fail (GTK_IS_CONSTRAINT (constraint), FALSE);
return constraint->source_widget == NULL &&
return constraint->source == NULL &&
constraint->source_attribute == GTK_CONSTRAINT_ATTRIBUTE_NONE;
}
@@ -581,3 +601,17 @@ gtk_constraint_detach (GtkConstraint *constraint)
constraint->constraint_ref = NULL;
constraint->solver = NULL;
}
typedef struct _GtkConstraintTargetInterface GtkConstraintTargetInterface;
struct _GtkConstraintTargetInterface
{
GTypeInterface g_iface;
};
G_DEFINE_INTERFACE (GtkConstraintTarget, gtk_constraint_target, G_TYPE_OBJECT)
static void
gtk_constraint_target_default_init (GtkConstraintTargetInterface *iface)
{
}

View File

@@ -24,6 +24,21 @@
G_BEGIN_DECLS
typedef struct _GtkConstraintTarget GtkConstraintTarget;
#define GTK_TYPE_CONSTRAINT_TARGET (gtk_constraint_target_get_type ())
/**
* GtkConstraintTarget:
*
* The GtkConstraintTarget interface is implemented by objects that
* can be used as source or target in #GtkConstraints. Besides
* #GtkWidget, it is also implemented by #GtkConstraintGuide.
*/
GDK_AVAILABLE_IN_ALL
G_DECLARE_INTERFACE (GtkConstraintTarget, gtk_constraint_target, GTK, CONSTRAINT_TARGET, GObject)
#define GTK_TYPE_CONSTRAINT (gtk_constraint_get_type ())
/**
@@ -43,16 +58,16 @@ GDK_AVAILABLE_IN_ALL
G_DECLARE_FINAL_TYPE (GtkConstraint, gtk_constraint, GTK, CONSTRAINT, GObject)
GDK_AVAILABLE_IN_ALL
GtkConstraint * gtk_constraint_new (GtkWidget *target_widget,
GtkConstraint * gtk_constraint_new (gpointer target,
GtkConstraintAttribute target_attribute,
GtkConstraintRelation relation,
GtkWidget *source_widget,
gpointer source,
GtkConstraintAttribute source_attribute,
double multiplier,
double constant,
int strength);
GDK_AVAILABLE_IN_ALL
GtkConstraint * gtk_constraint_new_constant (GtkWidget *target_widget,
GtkConstraint * gtk_constraint_new_constant (gpointer target,
GtkConstraintAttribute target_attribute,
GtkConstraintRelation relation,
double constant,
@@ -61,10 +76,14 @@ GtkConstraint * gtk_constraint_new_constant (GtkWidget
GDK_AVAILABLE_IN_ALL
GtkWidget * gtk_constraint_get_target_widget (GtkConstraint *constraint);
GDK_AVAILABLE_IN_ALL
GtkConstraintTarget * gtk_constraint_get_target (GtkConstraint *constraint);
GDK_AVAILABLE_IN_ALL
GtkConstraintAttribute gtk_constraint_get_target_attribute (GtkConstraint *constraint);
GDK_AVAILABLE_IN_ALL
GtkWidget * gtk_constraint_get_source_widget (GtkConstraint *constraint);
GDK_AVAILABLE_IN_ALL
GtkConstraintTarget * gtk_constraint_get_source (GtkConstraint *constraint);
GDK_AVAILABLE_IN_ALL
GtkConstraintAttribute gtk_constraint_get_source_attribute (GtkConstraint *constraint);
GDK_AVAILABLE_IN_ALL
GtkConstraintRelation gtk_constraint_get_relation (GtkConstraint *constraint);

View File

@@ -55,9 +55,12 @@ static guint64 gtk_constraint_variable_next_id;
static void
gtk_constraint_variable_init (GtkConstraintVariable *variable,
const char *prefix,
const char *name)
{
variable->_id = gtk_constraint_variable_next_id++;
variable->prefix = g_intern_string (prefix);
variable->name = g_intern_string (name);
variable->prefix = NULL;
variable->value = 0.0;
@@ -81,7 +84,7 @@ gtk_constraint_variable_new_dummy (const char *name)
{
GtkConstraintVariable *res = g_rc_box_new (GtkConstraintVariable);
gtk_constraint_variable_init (res, name);
gtk_constraint_variable_init (res, NULL, name);
res->_type = GTK_CONSTRAINT_SYMBOL_DUMMY;
res->is_external = FALSE;
@@ -108,7 +111,7 @@ gtk_constraint_variable_new_objective (const char *name)
{
GtkConstraintVariable *res = g_rc_box_new (GtkConstraintVariable);
gtk_constraint_variable_init (res, name);
gtk_constraint_variable_init (res, NULL, name);
res->_type = GTK_CONSTRAINT_SYMBOL_OBJECTIVE;
res->is_external = FALSE;
@@ -145,7 +148,7 @@ gtk_constraint_variable_new_slack (const char *name)
{
GtkConstraintVariable *res = g_rc_box_new (GtkConstraintVariable);
gtk_constraint_variable_init (res, name);
gtk_constraint_variable_init (res, NULL, name);
res->_type = GTK_CONSTRAINT_SYMBOL_SLACK;
res->is_external = FALSE;
@@ -157,7 +160,8 @@ gtk_constraint_variable_new_slack (const char *name)
/*< private >
* gtk_constraint_variable_new:
* @name: the name of the variable
* @prefix: (nullable): an optional prefix string for @name
* @name: (nullable): an optional name for the variable
*
* Allocates and initializes a new #GtkConstraintVariable for a regular
* symbol. All variables introduced by constraints are regular variables.
@@ -170,11 +174,12 @@ gtk_constraint_variable_new_slack (const char *name)
* Returns: a newly allocated #GtkConstraintVariable
*/
GtkConstraintVariable *
gtk_constraint_variable_new (const char *name)
gtk_constraint_variable_new (const char *prefix,
const char *name)
{
GtkConstraintVariable *res = g_rc_box_new (GtkConstraintVariable);
gtk_constraint_variable_init (res, name);
gtk_constraint_variable_init (res, prefix, name);
res->_type = GTK_CONSTRAINT_SYMBOL_REGULAR;
res->is_external = TRUE;
@@ -184,24 +189,6 @@ gtk_constraint_variable_new (const char *name)
return res;
}
/*< private >
* gtk_constraint_variable_set_prefix:
* @variable: a #GtkConstraintVariable
* @prefix: a prefix string
*
* Sets the prefix to the @variable's name.
*
* This function is useful when debugging the variable contents.
*/
void
gtk_constraint_variable_set_prefix (GtkConstraintVariable *variable,
const char *prefix)
{
g_return_if_fail (variable != NULL);
variable->prefix = g_intern_string (prefix);
}
/*< private >
* gtk_constraint_variable_ref:
* @variable: a #GtkConstraintVariable

View File

@@ -26,7 +26,8 @@
G_BEGIN_DECLS
GtkConstraintVariable *
gtk_constraint_variable_new (const char *name);
gtk_constraint_variable_new (const char *prefix,
const char *name);
GtkConstraintVariable *
gtk_constraint_variable_new_dummy (const char *name);
@@ -50,10 +51,6 @@ gtk_constraint_variable_set_value (GtkConstraintVariable *variable,
double
gtk_constraint_variable_get_value (const GtkConstraintVariable *variable);
void
gtk_constraint_variable_set_prefix (GtkConstraintVariable *variable,
const char *prefix);
char *
gtk_constraint_variable_to_string (const GtkConstraintVariable *variable);

File diff suppressed because it is too large Load Diff

View File

@@ -25,6 +25,30 @@ G_BEGIN_DECLS
#define GTK_TYPE_CONSTRAINT_LAYOUT (gtk_constraint_layout_get_type ())
#define GTK_TYPE_CONSTRAINT_LAYOUT_CHILD (gtk_constraint_layout_child_get_type ())
#define GTK_TYPE_CONSTRAINT_GUIDE (gtk_constraint_guide_get_type ())
/**
* GtkConstraintLayoutChild:
*
* A #GtkLayoutChild in a #GtkConstraintLayout.
*/
GDK_AVAILABLE_IN_ALL
G_DECLARE_FINAL_TYPE (GtkConstraintLayoutChild, gtk_constraint_layout_child, GTK, CONSTRAINT_LAYOUT_CHILD, GtkLayoutChild)
/**
* GtkConstraintGuide:
*
* An object that can be added to a #GtkConstraintLayout and be
* used in constraints like a widget, without being drawn. Guides
* have a minimal and natural size. Depending on the constraints
* that are applied, they can act like a guideline that widgets
* can be aligned to, or like 'flexible space'.
*/
GDK_AVAILABLE_IN_ALL
G_DECLARE_FINAL_TYPE (GtkConstraintGuide, gtk_constraint_guide, GTK, CONSTRAINT_GUIDE, GObject)
GDK_AVAILABLE_IN_ALL
GtkConstraintGuide * gtk_constraint_guide_new (void);
/**
* GtkConstraintLayout:
@@ -45,12 +69,32 @@ GDK_AVAILABLE_IN_ALL
void gtk_constraint_layout_remove_constraint (GtkConstraintLayout *manager,
GtkConstraint *constraint);
/**
* GtkConstraintLayoutChild:
*
* A #GtkLayoutChild in a #GtkConstraintLayout.
*/
GDK_AVAILABLE_IN_ALL
G_DECLARE_FINAL_TYPE (GtkConstraintLayoutChild, gtk_constraint_layout_child, GTK, CONSTRAINT_LAYOUT_CHILD, GtkLayoutChild)
void gtk_constraint_layout_add_guide (GtkConstraintLayout *manager,
GtkConstraintGuide *guide);
GDK_AVAILABLE_IN_ALL
void gtk_constraint_layout_remove_guide (GtkConstraintLayout *manager,
GtkConstraintGuide *guide);
GDK_AVAILABLE_IN_ALL
gboolean gtk_constraint_layout_add_constraints_from_description (GtkConstraintLayout *manager,
const char * const lines[],
gsize n_lines,
int hspacing,
int vspacing,
GError **error,
const char *first_view,
...) G_GNUC_NULL_TERMINATED;
GDK_AVAILABLE_IN_ALL
gboolean gtk_constraint_layout_add_constraints_from_descriptionv (GtkConstraintLayout *manager,
const char * const lines[],
gsize n_lines,
int hspacing,
int vspacing,
GHashTable *views,
GError **error);
GDK_AVAILABLE_IN_ALL
void gtk_constraint_layout_remove_all_constraints (GtkConstraintLayout *manager);
G_END_DECLS

View File

@@ -31,8 +31,8 @@ struct _GtkConstraint
GtkConstraintAttribute target_attribute;
GtkConstraintAttribute source_attribute;
GtkWidget *target_widget;
GtkWidget *source_widget;
GtkConstraintTarget *target;
GtkConstraintTarget *source;
GtkConstraintRelation relation;

View File

@@ -1482,8 +1482,7 @@ gtk_constraint_solver_create_variable (GtkConstraintSolver *self,
{
GtkConstraintVariable *res;
res = gtk_constraint_variable_new (name);
gtk_constraint_variable_set_prefix (res, prefix);
res = gtk_constraint_variable_new (prefix, name);
gtk_constraint_variable_set_value (res, value);
return res;

1226
gtk/gtkconstraintvflparser.c Normal file

File diff suppressed because it is too large Load Diff

View File

@@ -0,0 +1,89 @@
/* gtkconstraintvflparserprivate.h: VFL constraint definition parser
*
* Copyright 2017 Endless
* Copyright 2019 GNOME Foundation
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "gtkconstrainttypesprivate.h"
G_BEGIN_DECLS
#define GTK_CONSTRAINT_VFL_PARSER_ERROR (gtk_constraint_vfl_parser_error_quark ())
typedef enum {
GTK_CONSTRAINT_VFL_PARSER_ERROR_INVALID_SYMBOL,
GTK_CONSTRAINT_VFL_PARSER_ERROR_INVALID_ATTRIBUTE,
GTK_CONSTRAINT_VFL_PARSER_ERROR_INVALID_VIEW,
GTK_CONSTRAINT_VFL_PARSER_ERROR_INVALID_METRIC,
GTK_CONSTRAINT_VFL_PARSER_ERROR_INVALID_PRIORITY,
GTK_CONSTRAINT_VFL_PARSER_ERROR_INVALID_RELATION
} VflError;
typedef struct _GtkConstraintVflParser GtkConstraintVflParser;
typedef struct {
const char *view1;
const char *attr1;
GtkConstraintRelation relation;
const char *view2;
const char *attr2;
double constant;
double multiplier;
double strength;
} GtkConstraintVfl;
GQuark gtk_constraint_vfl_parser_error_quark (void);
GtkConstraintVflParser *
gtk_constraint_vfl_parser_new (void);
void
gtk_constraint_vfl_parser_free (GtkConstraintVflParser *parser);
void
gtk_constraint_vfl_parser_set_default_spacing (GtkConstraintVflParser *parser,
int hspacing,
int vspacing);
void
gtk_constraint_vfl_parser_set_metrics (GtkConstraintVflParser *parser,
GHashTable *metrics);
void
gtk_constraint_vfl_parser_set_views (GtkConstraintVflParser *parser,
GHashTable *views);
gboolean
gtk_constraint_vfl_parser_parse_line (GtkConstraintVflParser *parser,
const char *line,
gssize len,
GError **error);
int
gtk_constraint_vfl_parser_get_error_offset (GtkConstraintVflParser *parser);
int
gtk_constraint_vfl_parser_get_error_range (GtkConstraintVflParser *parser);
GtkConstraintVfl *
gtk_constraint_vfl_parser_get_constraints (GtkConstraintVflParser *parser,
int *n_constraints);
G_END_DECLS

View File

@@ -73,6 +73,7 @@
#include "gtkwindowgroup.h"
#include "gtkwindowprivate.h"
#include "gtknativeprivate.h"
#include "gtkconstraint.h"
#include "a11y/gtkwidgetaccessible.h"
#include "inspector/window.h"
@@ -770,6 +771,13 @@ gtk_widget_get_type (void)
NULL /* interface data */
};
const GInterfaceInfo constraint_target_info =
{
(GInterfaceInitFunc) NULL,
(GInterfaceFinalizeFunc) NULL,
NULL /* interface data */
};
widget_type = g_type_register_static (G_TYPE_INITIALLY_UNOWNED, g_intern_static_string ("GtkWidget"),
&widget_info, G_TYPE_FLAG_ABSTRACT);
@@ -782,6 +790,8 @@ gtk_widget_get_type (void)
&accessibility_info) ;
g_type_add_interface_static (widget_type, GTK_TYPE_BUILDABLE,
&buildable_info) ;
g_type_add_interface_static (widget_type, GTK_TYPE_CONSTRAINT_TARGET,
&constraint_target_info) ;
}
return widget_type;

View File

@@ -39,6 +39,7 @@ gtk_private_sources = files([
'gtkcolorswatch.c',
'gtkconstraintexpression.c',
'gtkconstraintsolver.c',
'gtkconstraintvflparser.c',
'gtkcssanimatedstyle.c',
'gtkcssanimation.c',
'gtkcssarrayvalue.c',