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5f070ff233386eae3b3290d12ba67745833dcb8c
gtk/demos/node-editor/node-editor-window.c
Emmanuele Bassi 5f070ff233 Remove filename/URI API from GtkFileChooser 
GtkFileChooser's API predates GIO by a few years, so it started off with
filenames and URI as character arrays. After introducing GIO as a
dependency, the API included GFile-based entry points.

It's much more appropriate to use GFile everywhere, as we want to
encourage people to use GIO instead of passing random bytes to low level
POSIX API.

See: #2455
2020-02-22 15:22:06 +00:00

870 lines
28 KiB
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/*
* Copyright © 2019 Benjamin Otte
*
* 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: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "node-editor-window.h"
#include "gtkrendererpaintableprivate.h"
#include "gsk/gskrendernodeparserprivate.h"
#ifndef NODE_EDITOR_SOURCE_DIR
#define NODE_EDITOR_SOURCE_DIR "." /* Fallback */
#endif
typedef struct
{
gsize start_chars;
gsize end_chars;
char *message;
} TextViewError;
struct _NodeEditorWindow
{
GtkApplicationWindow parent;
GtkWidget *picture;
GtkWidget *text_view;
GtkTextBuffer *text_buffer;
GtkTextTagTable *tag_table;
GtkWidget *testcase_popover;
GtkWidget *testcase_error_label;
GtkWidget *testcase_cairo_checkbutton;
GtkWidget *testcase_name_entry;
GtkWidget *testcase_save_button;
GtkWidget *renderer_listbox;
GListStore *renderers;
GdkPaintable *paintable;
GArray *errors;
};
struct _NodeEditorWindowClass
{
GtkApplicationWindowClass parent_class;
};
G_DEFINE_TYPE(NodeEditorWindow, node_editor_window, GTK_TYPE_APPLICATION_WINDOW);
static void
text_view_error_free (TextViewError *e)
{
g_free (e->message);
}
static gchar *
get_current_text (GtkTextBuffer *buffer)
{
GtkTextIter start, end;
gtk_text_buffer_get_start_iter (buffer, &start);
gtk_text_buffer_get_end_iter (buffer, &end);
return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
}
static void
text_buffer_remove_all_tags (GtkTextBuffer *buffer)
{
GtkTextIter start, end;
gtk_text_buffer_get_start_iter (buffer, &start);
gtk_text_buffer_get_end_iter (buffer, &end);
gtk_text_buffer_remove_all_tags (buffer, &start, &end);
}
static void
deserialize_error_func (const GtkCssSection *section,
const GError *error,
gpointer user_data)
{
const GtkCssLocation *start_location = gtk_css_section_get_start_location (section);
const GtkCssLocation *end_location = gtk_css_section_get_end_location (section);
NodeEditorWindow *self = user_data;
GtkTextIter start_iter, end_iter;
TextViewError text_view_error;
gtk_text_buffer_get_iter_at_line_offset (self->text_buffer, &start_iter,
start_location->lines,
start_location->line_chars);
gtk_text_buffer_get_iter_at_line_offset (self->text_buffer, &end_iter,
end_location->lines,
end_location->line_chars);
gtk_text_buffer_apply_tag_by_name (self->text_buffer, "error",
&start_iter, &end_iter);
text_view_error.start_chars = start_location->chars;
text_view_error.end_chars = end_location->chars;
text_view_error.message = g_strdup (error->message);
g_array_append_val (self->errors, text_view_error);
}
static void
text_iter_skip_alpha_backward (GtkTextIter *iter)
{
/* Just skip to the previous non-whitespace char */
while (!gtk_text_iter_is_start (iter))
{
gunichar c = gtk_text_iter_get_char (iter);
if (g_unichar_isspace (c))
{
gtk_text_iter_forward_char (iter);
break;
}
gtk_text_iter_backward_char (iter);
}
}
static void
text_iter_skip_whitespace_backward (GtkTextIter *iter)
{
while (!gtk_text_iter_is_start (iter))
{
gunichar c = gtk_text_iter_get_char (iter);
if (g_unichar_isalpha (c))
{
gtk_text_iter_forward_char (iter);
break;
}
gtk_text_iter_backward_char (iter);
}
}
static void
text_changed (GtkTextBuffer *buffer,
NodeEditorWindow *self)
{
GskRenderNode *node;
char *text;
GBytes *bytes;
g_array_remove_range (self->errors, 0, self->errors->len);
text = get_current_text (self->text_buffer);
text_buffer_remove_all_tags (self->text_buffer);
bytes = g_bytes_new_take (text, strlen (text));
/* If this is too slow, go fix the parser performance */
node = gsk_render_node_deserialize (bytes, deserialize_error_func, self);
g_bytes_unref (bytes);
if (node)
{
/* XXX: Is this code necessary or can we have API to turn nodes into paintables? */
GtkSnapshot *snapshot;
GdkPaintable *paintable;
graphene_rect_t bounds;
guint i;
snapshot = gtk_snapshot_new ();
gsk_render_node_get_bounds (node, &bounds);
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (- bounds.origin.x, - bounds.origin.y));
gtk_snapshot_append_node (snapshot, node);
gsk_render_node_unref (node);
paintable = gtk_snapshot_free_to_paintable (snapshot, &bounds.size);
gtk_picture_set_paintable (GTK_PICTURE (self->picture), paintable);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (self->renderers)); i++)
{
gpointer item = g_list_model_get_item (G_LIST_MODEL (self->renderers), i);
gtk_renderer_paintable_set_paintable (item, paintable);
g_object_unref (item);
}
g_clear_object (&paintable);
}
else
{
gtk_picture_set_paintable (GTK_PICTURE (self->picture), NULL);
}
GtkTextIter iter;
gtk_text_buffer_get_start_iter (self->text_buffer, &iter);
while (!gtk_text_iter_is_end (&iter))
{
gunichar c = gtk_text_iter_get_char (&iter);
if (c == '{')
{
GtkTextIter word_end = iter;
GtkTextIter word_start;
gtk_text_iter_backward_char (&word_end);
text_iter_skip_whitespace_backward (&word_end);
word_start = word_end;
gtk_text_iter_backward_word_start (&word_start);
text_iter_skip_alpha_backward (&word_start);
gtk_text_buffer_apply_tag_by_name (self->text_buffer, "nodename",
&word_start, &word_end);
}
else if (c == ':')
{
GtkTextIter word_end = iter;
GtkTextIter word_start;
gtk_text_iter_backward_char (&word_end);
text_iter_skip_whitespace_backward (&word_end);
word_start = word_end;
gtk_text_iter_backward_word_start (&word_start);
text_iter_skip_alpha_backward (&word_start);
gtk_text_buffer_apply_tag_by_name (self->text_buffer, "propname",
&word_start, &word_end);
}
else if (c == '"')
{
GtkTextIter string_start = iter;
GtkTextIter string_end = iter;
gtk_text_iter_forward_char (&iter);
while (!gtk_text_iter_is_end (&iter))
{
c = gtk_text_iter_get_char (&iter);
if (c == '"')
{
gtk_text_iter_forward_char (&iter);
string_end = iter;
break;
}
gtk_text_iter_forward_char (&iter);
}
gtk_text_buffer_apply_tag_by_name (self->text_buffer, "string",
&string_start, &string_end);
}
gtk_text_iter_forward_char (&iter);
}
}
static gboolean
text_view_query_tooltip_cb (GtkWidget *widget,
int x,
int y,
gboolean keyboard_tip,
GtkTooltip *tooltip,
NodeEditorWindow *self)
{
GtkTextIter iter;
guint i;
GString *text;
if (keyboard_tip)
{
gint offset;
g_object_get (self->text_buffer, "cursor-position", &offset, NULL);
gtk_text_buffer_get_iter_at_offset (self->text_buffer, &iter, offset);
}
else
{
gint bx, by, trailing;
gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (self->text_view), GTK_TEXT_WINDOW_TEXT,
x, y, &bx, &by);
gtk_text_view_get_iter_at_position (GTK_TEXT_VIEW (self->text_view), &iter, &trailing, bx, by);
}
text = g_string_new ("");
for (i = 0; i < self->errors->len; i ++)
{
const TextViewError *e = &g_array_index (self->errors, TextViewError, i);
GtkTextIter start_iter, end_iter;
gtk_text_buffer_get_iter_at_offset (self->text_buffer, &start_iter, e->start_chars);
gtk_text_buffer_get_iter_at_offset (self->text_buffer, &end_iter, e->end_chars);
if (gtk_text_iter_in_range (&iter, &start_iter, &end_iter))
{
if (text->len > 0)
g_string_append (text, "\n");
g_string_append (text, e->message);
}
}
if (text->len > 0)
{
gtk_tooltip_set_text (tooltip, text->str);
g_string_free (text, TRUE);
return TRUE;
}
else
{
g_string_free (text, TRUE);
return FALSE;
}
}
gboolean
node_editor_window_load (NodeEditorWindow *self,
GFile *file)
{
GtkTextIter end;
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;
}
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));
g_bytes_unref (bytes);
return TRUE;
}
static void
open_response_cb (GtkWidget *dialog,
gint response,
NodeEditorWindow *self)
{
gtk_widget_hide (dialog);
if (response == GTK_RESPONSE_ACCEPT)
{
GFile *file;
file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
node_editor_window_load (self, file);
g_object_unref (file);
}
gtk_widget_destroy (dialog);
}
static void
show_open_filechooser (NodeEditorWindow *self)
{
GtkWidget *dialog;
dialog = gtk_file_chooser_dialog_new ("Open node file",
GTK_WINDOW (self),
GTK_FILE_CHOOSER_ACTION_OPEN,
"_Cancel", GTK_RESPONSE_CANCEL,
"_Load", GTK_RESPONSE_ACCEPT,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT);
gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
GFile *cwd = g_file_new_for_path (".");
gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog), cwd, NULL);
g_object_unref (cwd);
g_signal_connect (dialog, "response", G_CALLBACK (open_response_cb), self);
gtk_widget_show (dialog);
}
static void
open_cb (GtkWidget *button,
NodeEditorWindow *self)
{
show_open_filechooser (self);
}
static void
save_response_cb (GtkWidget *dialog,
gint response,
NodeEditorWindow *self)
{
gtk_widget_hide (dialog);
if (response == GTK_RESPONSE_ACCEPT)
{
GFile *file;
char *text;
GError *error = NULL;
text = get_current_text (self->text_buffer);
file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
g_file_replace_contents (file, text, -1,
NULL, FALSE,
G_FILE_CREATE_NONE,
NULL,
NULL,
&error);
if (error != NULL)
{
GtkWidget *dialog;
dialog = gtk_message_dialog_new (GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (self))),
GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_INFO,
GTK_BUTTONS_OK,
"Saving failed");
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
"%s", error->message);
g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL);
gtk_widget_show (dialog);
g_error_free (error);
}
g_free (text);
g_object_unref (file);
}
gtk_widget_destroy (dialog);
}
static void
save_cb (GtkWidget *button,
NodeEditorWindow *self)
{
GtkWidget *dialog;
dialog = gtk_file_chooser_dialog_new ("Save node",
GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (button))),
GTK_FILE_CHOOSER_ACTION_SAVE,
"_Cancel", GTK_RESPONSE_CANCEL,
"_Save", GTK_RESPONSE_ACCEPT,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT);
gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog), TRUE);
GFile *cwd = g_file_new_for_path (".");
gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog), cwd, NULL);
g_object_unref (cwd);
g_signal_connect (dialog, "response", G_CALLBACK (save_response_cb), self);
gtk_widget_show (dialog);
}
static GdkTexture *
create_texture (NodeEditorWindow *self)
{
GdkPaintable *paintable;
GtkSnapshot *snapshot;
GskRenderer *renderer;
GskRenderNode *node;
GdkTexture *texture;
paintable = gtk_picture_get_paintable (GTK_PICTURE (self->picture));
if (paintable == NULL ||
gdk_paintable_get_intrinsic_width (paintable) <= 0 ||
gdk_paintable_get_intrinsic_height (paintable) <= 0)
return NULL;
snapshot = gtk_snapshot_new ();
gdk_paintable_snapshot (paintable, snapshot, gdk_paintable_get_intrinsic_width (paintable), gdk_paintable_get_intrinsic_height (paintable));
node = gtk_snapshot_free_to_node (snapshot);
if (node == NULL)
return NULL;
renderer = gtk_native_get_renderer (gtk_widget_get_native (GTK_WIDGET (self)));
texture = gsk_renderer_render_texture (renderer, node, NULL);
gsk_render_node_unref (node);
return texture;
}
static GdkTexture *
create_cairo_texture (NodeEditorWindow *self)
{
GdkPaintable *paintable;
GtkSnapshot *snapshot;
GskRenderer *renderer;
GskRenderNode *node;
GdkTexture *texture;
GdkSurface *surface;
paintable = gtk_picture_get_paintable (GTK_PICTURE (self->picture));
if (paintable == NULL ||
gdk_paintable_get_intrinsic_width (paintable) <= 0 ||
gdk_paintable_get_intrinsic_height (paintable) <= 0)
return NULL;
snapshot = gtk_snapshot_new ();
gdk_paintable_snapshot (paintable, snapshot, gdk_paintable_get_intrinsic_width (paintable), gdk_paintable_get_intrinsic_height (paintable));
node = gtk_snapshot_free_to_node (snapshot);
if (node == NULL)
return NULL;
surface = gtk_native_get_surface (gtk_widget_get_native (GTK_WIDGET (self)));
renderer = gsk_cairo_renderer_new ();
gsk_renderer_realize (renderer, surface, NULL);
texture = gsk_renderer_render_texture (renderer, node, NULL);
gsk_render_node_unref (node);
gsk_renderer_unrealize (renderer);
g_object_unref (renderer);
return texture;
}
static void
export_image_response_cb (GtkWidget *dialog,
gint response,
GdkTexture *texture)
{
gtk_widget_hide (dialog);
if (response == GTK_RESPONSE_ACCEPT)
{
GFile *file;
file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
if (!gdk_texture_save_to_png (texture, g_file_peek_path (file)))
{
GtkWidget *message_dialog;
message_dialog = gtk_message_dialog_new (GTK_WINDOW (gtk_window_get_transient_for (GTK_WINDOW (dialog))),
GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_INFO,
GTK_BUTTONS_OK,
"Exporting to image failed");
g_signal_connect (message_dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL);
gtk_widget_show (message_dialog);
}
g_object_unref (file);
}
gtk_widget_destroy (dialog);
g_object_unref (texture);
}
static void
export_image_cb (GtkWidget *button,
NodeEditorWindow *self)
{
GdkTexture *texture;
GtkWidget *dialog;
texture = create_texture (self);
if (texture == NULL)
return;
dialog = gtk_file_chooser_dialog_new ("",
GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (button))),
GTK_FILE_CHOOSER_ACTION_SAVE,
"_Cancel", GTK_RESPONSE_CANCEL,
"_Save", GTK_RESPONSE_ACCEPT,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT);
gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog), TRUE);
g_signal_connect (dialog, "response", G_CALLBACK (export_image_response_cb), texture);
gtk_widget_show (dialog);
}
static void
testcase_name_entry_changed_cb (GtkWidget *button,
GParamSpec *pspec,
NodeEditorWindow *self)
{
const char *text = gtk_editable_get_text (GTK_EDITABLE (self->testcase_name_entry));
if (strlen (text) > 0)
gtk_widget_set_sensitive (self->testcase_save_button, TRUE);
else
gtk_widget_set_sensitive (self->testcase_save_button, FALSE);
}
static void
testcase_save_clicked_cb (GtkWidget *button,
NodeEditorWindow *self)
{
const char *testcase_name = gtk_editable_get_text (GTK_EDITABLE (self->testcase_name_entry));
char *source_dir = g_canonicalize_filename (NODE_EDITOR_SOURCE_DIR, NULL);
char *node_file_name;
char *node_file;
char *png_file_name;
char *png_file;
char *text = NULL;
GdkTexture *texture;
GError *error = NULL;
node_file_name = g_strconcat (testcase_name, ".node", NULL);
node_file = g_build_filename (source_dir, node_file_name, NULL);
g_free (node_file_name);
png_file_name = g_strconcat (testcase_name, ".png", NULL);
png_file = g_build_filename (source_dir, png_file_name, NULL);
g_free (png_file_name);
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (self->testcase_cairo_checkbutton)))
texture = create_cairo_texture (self);
else
texture = create_texture (self);
if (!gdk_texture_save_to_png (texture, png_file))
{
gtk_label_set_label (GTK_LABEL (self->testcase_error_label),
"Could not save texture file");
goto out;
}
text = get_current_text (self->text_buffer);
if (!g_file_set_contents (node_file, text, -1, &error))
{
gtk_label_set_label (GTK_LABEL (self->testcase_error_label), error->message);
/* TODO: Remove texture file again? */
goto out;
}
gtk_editable_set_text (GTK_EDITABLE (self->testcase_name_entry), "");
gtk_popover_popdown (GTK_POPOVER (self->testcase_popover));
out:
g_free (text);
g_free (png_file);
g_free (node_file);
g_free (source_dir);
}
static void
node_editor_window_finalize (GObject *object)
{
NodeEditorWindow *self = (NodeEditorWindow *)object;
g_array_free (self->errors, TRUE);
g_clear_object (&self->renderers);
G_OBJECT_CLASS (node_editor_window_parent_class)->finalize (object);
}
static void
node_editor_window_add_renderer (NodeEditorWindow *self,
GskRenderer *renderer,
const char *description)
{
GdkSurface *surface;
GdkPaintable *paintable;
surface = gtk_native_get_surface (GTK_NATIVE (self));
g_assert (surface != NULL);
if (renderer != NULL && !gsk_renderer_realize (renderer, surface, NULL))
{
g_object_unref (renderer);
return;
}
paintable = gtk_renderer_paintable_new (renderer, gtk_picture_get_paintable (GTK_PICTURE (self->picture)));
g_object_set_data_full (G_OBJECT (paintable), "description", g_strdup (description), g_free);
g_clear_object (&renderer);
g_list_store_append (self->renderers, paintable);
g_object_unref (paintable);
}
static void
node_editor_window_realize (GtkWidget *widget)
{
NodeEditorWindow *self = NODE_EDITOR_WINDOW (widget);
GTK_WIDGET_CLASS (node_editor_window_parent_class)->realize (widget);
#if 0
node_editor_window_add_renderer (self,
NULL,
"Default");
#endif
node_editor_window_add_renderer (self,
gsk_gl_renderer_new (),
"OpenGL");
#ifdef GDK_RENDERING_VULKAN
node_editor_window_add_renderer (self,
gsk_vulkan_renderer_new (),
"Vulkan");
#endif
#ifdef GDK_WINDOWING_BROADWAY
node_editor_window_add_renderer (self,
gsk_broadway_renderer_new (),
"Broadway");
#endif
node_editor_window_add_renderer (self,
gsk_cairo_renderer_new (),
"Cairo");
}
static void
node_editor_window_unrealize (GtkWidget *widget)
{
NodeEditorWindow *self = NODE_EDITOR_WINDOW (widget);
guint i;
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (self->renderers)); i ++)
{
gpointer item = g_list_model_get_item (G_LIST_MODEL (self->renderers), i);
gsk_renderer_unrealize (gtk_renderer_paintable_get_renderer (item));
g_object_unref (item);
}
g_list_store_remove_all (self->renderers);
GTK_WIDGET_CLASS (node_editor_window_parent_class)->unrealize (widget);
}
static void
node_editor_window_class_init (NodeEditorWindowClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
object_class->finalize = node_editor_window_finalize;
gtk_widget_class_set_template_from_resource (widget_class,
"/org/gtk/gtk4/node-editor/node-editor-window.ui");
widget_class->realize = node_editor_window_realize;
widget_class->unrealize = node_editor_window_unrealize;
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, text_view);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, picture);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, renderer_listbox);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, testcase_popover);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, testcase_error_label);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, testcase_cairo_checkbutton);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, testcase_name_entry);
gtk_widget_class_bind_template_child (widget_class, NodeEditorWindow, testcase_save_button);
gtk_widget_class_bind_template_callback (widget_class, text_view_query_tooltip_cb);
gtk_widget_class_bind_template_callback (widget_class, open_cb);
gtk_widget_class_bind_template_callback (widget_class, save_cb);
gtk_widget_class_bind_template_callback (widget_class, export_image_cb);
gtk_widget_class_bind_template_callback (widget_class, testcase_save_clicked_cb);
gtk_widget_class_bind_template_callback (widget_class, testcase_name_entry_changed_cb);
}
static GtkWidget *
node_editor_window_create_renderer_widget (gpointer item,
gpointer user_data)
{
GdkPaintable *paintable = item;
GtkWidget *box, *label, *picture;
GtkWidget *row;
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_widget_set_size_request (box, 120, 90);
label = gtk_label_new (g_object_get_data (G_OBJECT (paintable), "description"));
gtk_container_add (GTK_CONTAINER (box), label);
picture = gtk_picture_new_for_paintable (paintable);
/* don't ever scale up, we want to be as accurate as possible */
gtk_widget_set_halign (picture, GTK_ALIGN_CENTER);
gtk_widget_set_valign (picture, GTK_ALIGN_CENTER);
gtk_container_add (GTK_CONTAINER (box), picture);
row = gtk_list_box_row_new ();
gtk_container_add (GTK_CONTAINER (row), box);
gtk_list_box_row_set_activatable (GTK_LIST_BOX_ROW (row), FALSE);
return row;
}
static void
window_open (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
NodeEditorWindow *self = user_data;
show_open_filechooser (self);
}
static GActionEntry win_entries[] = {
{ "open", window_open, NULL, NULL, NULL },
};
static void
node_editor_window_init (NodeEditorWindow *self)
{
gtk_widget_init_template (GTK_WIDGET (self));
self->renderers = g_list_store_new (GDK_TYPE_PAINTABLE);
gtk_list_box_bind_model (GTK_LIST_BOX (self->renderer_listbox),
G_LIST_MODEL (self->renderers),
node_editor_window_create_renderer_widget,
self,
NULL);
self->errors = g_array_new (FALSE, TRUE, sizeof (TextViewError));
g_array_set_clear_func (self->errors, (GDestroyNotify)text_view_error_free);
g_action_map_add_action_entries (G_ACTION_MAP (self), win_entries, G_N_ELEMENTS (win_entries), self);
self->tag_table = gtk_text_tag_table_new ();
gtk_text_tag_table_add (self->tag_table,
g_object_new (GTK_TYPE_TEXT_TAG,
"name", "error",
"underline", PANGO_UNDERLINE_ERROR,
NULL));
gtk_text_tag_table_add (self->tag_table,
g_object_new (GTK_TYPE_TEXT_TAG,
"name", "nodename",
"foreground-rgba", &(GdkRGBA) { 0.9, 0.78, 0.53, 1},
NULL));
gtk_text_tag_table_add (self->tag_table,
g_object_new (GTK_TYPE_TEXT_TAG,
"name", "propname",
"foreground-rgba", &(GdkRGBA) { 0.7, 0.55, 0.67, 1},
NULL));
gtk_text_tag_table_add (self->tag_table,
g_object_new (GTK_TYPE_TEXT_TAG,
"name", "string",
"foreground-rgba", &(GdkRGBA) { 0.63, 0.73, 0.54, 1},
NULL));
gtk_text_tag_table_add (self->tag_table,
g_object_new (GTK_TYPE_TEXT_TAG,
"name", "number",
"foreground-rgba", &(GdkRGBA) { 0.8, 0.52, 0.43, 1},
NULL));
self->text_buffer = gtk_text_buffer_new (self->tag_table);
g_signal_connect (self->text_buffer, "changed", G_CALLBACK (text_changed), self);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (self->text_view), self->text_buffer);
}
NodeEditorWindow *
node_editor_window_new (NodeEditorApplication *application)
{
return g_object_new (NODE_EDITOR_WINDOW_TYPE,
"application", application,
NULL);
}
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