509 lines
16 KiB
C
509 lines
16 KiB
C
/*
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* Copyright © 2019 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Matthias Clasen
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*/
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#include "config.h"
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#include "constraint-editor-window.h"
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#include "constraint-view.h"
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#include "constraint-editor.h"
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#include "guide-editor.h"
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struct _ConstraintEditorWindow
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{
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GtkApplicationWindow parent_instance;
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GtkWidget *paned;
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GtkWidget *view;
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GtkWidget *list;
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};
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G_DEFINE_TYPE(ConstraintEditorWindow, constraint_editor_window, GTK_TYPE_APPLICATION_WINDOW);
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gboolean
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constraint_editor_window_load (ConstraintEditorWindow *self,
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GFile *file)
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{
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GBytes *bytes;
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bytes = g_file_load_bytes (file, NULL, NULL, NULL);
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if (bytes == NULL)
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return FALSE;
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if (!g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL))
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{
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g_bytes_unref (bytes);
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return FALSE;
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}
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#if 0
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gtk_text_buffer_get_end_iter (self->text_buffer, &end);
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gtk_text_buffer_insert (self->text_buffer,
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&end,
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g_bytes_get_data (bytes, NULL),
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g_bytes_get_size (bytes));
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#endif
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g_bytes_unref (bytes);
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return TRUE;
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}
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static void
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open_response_cb (GtkNativeDialog *dialog,
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gint response,
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ConstraintEditorWindow *self)
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{
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gtk_native_dialog_hide (dialog);
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if (response == GTK_RESPONSE_ACCEPT)
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{
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GFile *file;
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file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
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constraint_editor_window_load (self, file);
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g_object_unref (file);
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}
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gtk_native_dialog_destroy (dialog);
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}
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static void
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open_cb (GtkWidget *button,
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ConstraintEditorWindow *self)
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{
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GtkFileChooserNative *dialog;
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dialog = gtk_file_chooser_native_new ("Open file",
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GTK_WINDOW (self),
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GTK_FILE_CHOOSER_ACTION_OPEN,
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"_Load",
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"_Cancel");
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gtk_native_dialog_set_modal (GTK_NATIVE_DIALOG (dialog), TRUE);
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gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog), ".");
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g_signal_connect (dialog, "response", G_CALLBACK (open_response_cb), self);
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gtk_native_dialog_show (GTK_NATIVE_DIALOG (dialog));
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}
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static void
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serialize_child (GString *str,
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int indent,
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GtkWidget *child)
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{
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const char *name;
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name = gtk_widget_get_name (child);
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g_string_append_printf (str, "%*s<child>\n", indent, "");
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g_string_append_printf (str, "%*s <object class=\"GtkLabel\" id=\"%s\">\n", indent, "", name);
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g_string_append_printf (str, "%*s <property name=\"label\">%s</property>\n", indent, "", name);
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g_string_append_printf (str, "%*s </object>\n", indent, "");
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g_string_append_printf (str, "%*s</child>\n", indent, "");
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}
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static char *
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serialize_model (GListModel *list)
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{
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GString *str = g_string_new ("");
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int i;
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g_string_append (str, "<interface>\n");
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g_string_append (str, " <object class=\"GtkBox\" id=\"view\">\n");
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g_string_append (str, " <property name=\"layout-manager\">\n");
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g_string_append (str, " <object class=\"GtkConstraintLayout\">\n");
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g_string_append (str, " <constraints>\n");
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for (i = 0; i < g_list_model_get_n_items (list); i++)
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{
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gpointer item = g_list_model_get_item (list, i);
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g_object_unref (item);
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if (GTK_IS_CONSTRAINT (item))
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constraint_editor_serialize_constraint (str, 10, GTK_CONSTRAINT (item));
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else if (GTK_IS_CONSTRAINT_GUIDE (item))
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guide_editor_serialize_guide (str, 10, GTK_CONSTRAINT_GUIDE (item));
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}
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g_string_append (str, " </constraints>\n");
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g_string_append (str, " </object>\n");
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g_string_append (str, " </property>\n");
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for (i = 0; i < g_list_model_get_n_items (list); i++)
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{
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gpointer item = g_list_model_get_item (list, i);
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g_object_unref (item);
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if (GTK_IS_WIDGET (item))
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serialize_child (str, 4, GTK_WIDGET (item));
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}
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g_string_append (str, " </object>\n");
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g_string_append (str, "</interface>\n");
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return g_string_free (str, FALSE);
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}
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static void
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save_response_cb (GtkNativeDialog *dialog,
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gint response,
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ConstraintEditorWindow *self)
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{
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gtk_native_dialog_hide (dialog);
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if (response == GTK_RESPONSE_ACCEPT)
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{
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GListModel *model;
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char *text, *filename;
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GError *error = NULL;
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model = constraint_view_get_model (CONSTRAINT_VIEW (self->view));
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text = serialize_model (model);
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filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
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if (!g_file_set_contents (filename, text, -1, &error))
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{
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GtkWidget *dialog;
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dialog = gtk_message_dialog_new (GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (self))),
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GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
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GTK_MESSAGE_INFO,
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GTK_BUTTONS_OK,
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"Saving failed");
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gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
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"%s", error->message);
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g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL);
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gtk_widget_show (dialog);
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g_error_free (error);
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}
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g_free (filename);
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}
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gtk_native_dialog_destroy (dialog);
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}
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static void
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save_cb (GtkWidget *button,
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ConstraintEditorWindow *self)
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{
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GtkFileChooserNative *dialog;
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dialog = gtk_file_chooser_native_new ("Save constraints",
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GTK_WINDOW (gtk_widget_get_root (GTK_WIDGET (button))),
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GTK_FILE_CHOOSER_ACTION_SAVE,
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"_Save",
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"_Cancel");
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gtk_native_dialog_set_modal (GTK_NATIVE_DIALOG (dialog), TRUE);
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gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog), ".");
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g_signal_connect (dialog, "response", G_CALLBACK (save_response_cb), self);
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gtk_native_dialog_show (GTK_NATIVE_DIALOG (dialog));
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}
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static void
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constraint_editor_window_finalize (GObject *object)
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{
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//ConstraintEditorWindow *self = (ConstraintEditorWindow *)object;
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G_OBJECT_CLASS (constraint_editor_window_parent_class)->finalize (object);
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}
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static int child_counter;
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static int guide_counter;
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static void
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add_child (ConstraintEditorWindow *win)
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{
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char *name;
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child_counter++;
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name = g_strdup_printf ("Child %d", child_counter);
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constraint_view_add_child (CONSTRAINT_VIEW (win->view), name);
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g_free (name);
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}
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static void
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add_guide (ConstraintEditorWindow *win)
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{
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char *name;
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GtkConstraintGuide *guide;
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guide_counter++;
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name = g_strdup_printf ("Guide %d", guide_counter);
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guide = gtk_constraint_guide_new ();
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gtk_constraint_guide_set_name (guide, name);
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g_free (name);
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constraint_view_add_guide (CONSTRAINT_VIEW (win->view), guide);
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}
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static void
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constraint_editor_done (ConstraintEditor *editor,
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GtkConstraint *constraint,
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ConstraintEditorWindow *win)
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{
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GtkConstraint *old_constraint;
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g_object_get (editor, "constraint", &old_constraint, NULL);
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if (old_constraint)
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constraint_view_remove_constraint (CONSTRAINT_VIEW (win->view), old_constraint);
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constraint_view_add_constraint (CONSTRAINT_VIEW (win->view), constraint);
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g_clear_object (&old_constraint);
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gtk_widget_destroy (gtk_widget_get_ancestor (GTK_WIDGET (editor), GTK_TYPE_WINDOW));
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}
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static void
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edit_constraint (ConstraintEditorWindow *win,
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GtkConstraint *constraint)
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{
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GtkWidget *window;
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ConstraintEditor *editor;
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GListModel *model;
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (win));
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gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
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if (constraint)
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gtk_window_set_title (GTK_WINDOW (window), "Edit Constraint");
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else
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gtk_window_set_title (GTK_WINDOW (window), "Create Constraint");
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model = constraint_view_get_model (CONSTRAINT_VIEW (win->view));
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editor = constraint_editor_new (model, constraint);
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gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (editor));
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g_signal_connect (editor, "done", G_CALLBACK (constraint_editor_done), win);
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gtk_widget_show (window);
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}
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static void
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add_constraint (ConstraintEditorWindow *win)
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{
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edit_constraint (win, NULL);
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}
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static void
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guide_editor_done (GuideEditor *editor,
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GtkConstraintGuide *guide,
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ConstraintEditorWindow *win)
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{
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gtk_widget_destroy (gtk_widget_get_ancestor (GTK_WIDGET (editor), GTK_TYPE_WINDOW));
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}
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static void
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edit_guide (ConstraintEditorWindow *win,
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GtkConstraintGuide *guide)
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{
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GtkWidget *window;
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GuideEditor *editor;
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
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gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (win));
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gtk_window_set_title (GTK_WINDOW (window), "Edit Guide");
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editor = guide_editor_new (guide);
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gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (editor));
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g_signal_connect (editor, "done", G_CALLBACK (guide_editor_done), win);
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gtk_widget_show (window);
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}
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static void
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row_activated (GtkListBox *list,
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GtkListBoxRow *row,
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ConstraintEditorWindow *win)
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{
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GObject *item;
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item = G_OBJECT (g_object_get_data (G_OBJECT (row), "item"));
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if (GTK_IS_CONSTRAINT (item))
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edit_constraint (win, GTK_CONSTRAINT (item));
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else if (GTK_IS_CONSTRAINT_GUIDE (item))
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edit_guide (win, GTK_CONSTRAINT_GUIDE (item));
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}
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static void
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constraint_editor_window_class_init (ConstraintEditorWindowClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
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g_type_ensure (CONSTRAINT_VIEW_TYPE);
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object_class->finalize = constraint_editor_window_finalize;
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gtk_widget_class_set_template_from_resource (widget_class,
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"/org/gtk/gtk4/constraint-editor/constraint-editor-window.ui");
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gtk_widget_class_bind_template_child (widget_class, ConstraintEditorWindow, paned);
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gtk_widget_class_bind_template_child (widget_class, ConstraintEditorWindow, view);
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gtk_widget_class_bind_template_child (widget_class, ConstraintEditorWindow, list);
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gtk_widget_class_bind_template_callback (widget_class, open_cb);
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gtk_widget_class_bind_template_callback (widget_class, save_cb);
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gtk_widget_class_bind_template_callback (widget_class, add_child);
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gtk_widget_class_bind_template_callback (widget_class, add_guide);
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gtk_widget_class_bind_template_callback (widget_class, add_constraint);
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gtk_widget_class_bind_template_callback (widget_class, row_activated);
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}
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static void
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row_edit (GtkButton *button,
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ConstraintEditorWindow *win)
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{
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GtkWidget *row;
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GObject *item;
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row = gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_LIST_BOX_ROW);
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item = (GObject *)g_object_get_data (G_OBJECT (row), "item");
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if (GTK_IS_CONSTRAINT (item))
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edit_constraint (win, GTK_CONSTRAINT (item));
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else if (GTK_IS_CONSTRAINT_GUIDE (item))
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edit_guide (win, GTK_CONSTRAINT_GUIDE (item));
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}
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static void
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mark_constraints_invalid (ConstraintEditorWindow *win,
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gpointer removed)
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{
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GtkWidget *child;
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GObject *item;
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for (child = gtk_widget_get_first_child (win->list);
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child;
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child = gtk_widget_get_next_sibling (child))
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{
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item = (GObject *)g_object_get_data (G_OBJECT (child), "item");
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if (GTK_IS_CONSTRAINT (item))
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{
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GtkConstraint *constraint = GTK_CONSTRAINT (item);
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if (gtk_constraint_get_target (constraint) == (GtkConstraintTarget *)removed ||
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gtk_constraint_get_source (constraint) == (GtkConstraintTarget *)removed)
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{
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GtkWidget *button;
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button = (GtkWidget *)g_object_get_data (G_OBJECT (child), "edit");
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gtk_button_set_icon_name (GTK_BUTTON (button), "dialog-warning-symbolic");
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gtk_widget_set_tooltip_text (button, "Constraint is invalid");
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}
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}
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}
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}
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static void
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row_delete (GtkButton *button,
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ConstraintEditorWindow *win)
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{
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GtkWidget *row;
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GObject *item;
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row = gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_LIST_BOX_ROW);
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item = (GObject *)g_object_get_data (G_OBJECT (row), "item");
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if (GTK_IS_CONSTRAINT (item))
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constraint_view_remove_constraint (CONSTRAINT_VIEW (win->view),
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GTK_CONSTRAINT (item));
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else if (GTK_IS_CONSTRAINT_GUIDE (item))
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{
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mark_constraints_invalid (win, item);
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constraint_view_remove_guide (CONSTRAINT_VIEW (win->view),
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GTK_CONSTRAINT_GUIDE (item));
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}
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else if (GTK_IS_WIDGET (item))
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{
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mark_constraints_invalid (win, item);
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constraint_view_remove_child (CONSTRAINT_VIEW (win->view),
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GTK_WIDGET (item));
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}
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}
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static GtkWidget *
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create_widget_func (gpointer item,
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gpointer user_data)
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{
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ConstraintEditorWindow *win = user_data;
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const char *name;
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GtkWidget *row, *box, *label, *button;
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if (GTK_IS_WIDGET (item))
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name = gtk_widget_get_name (GTK_WIDGET (item));
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else if (GTK_IS_CONSTRAINT_GUIDE (item))
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name = gtk_constraint_guide_get_name (GTK_CONSTRAINT_GUIDE (item));
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else
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name = (const char *)g_object_get_data (G_OBJECT (item), "name");
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row = gtk_list_box_row_new ();
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g_object_set_data_full (G_OBJECT (row), "item", g_object_ref (item), g_object_unref);
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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label = gtk_label_new (name);
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if (GTK_IS_WIDGET (item) || GTK_IS_CONSTRAINT_GUIDE (item))
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g_object_bind_property (item, "name",
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label, "label",
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G_BINDING_DEFAULT);
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g_object_set (label, "margin", 10, NULL);
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gtk_label_set_xalign (GTK_LABEL (label), 0.0);
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gtk_widget_set_hexpand (label, TRUE);
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gtk_container_add (GTK_CONTAINER (row), box);
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gtk_container_add (GTK_CONTAINER (box), label);
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if (GTK_IS_CONSTRAINT (item) || GTK_IS_CONSTRAINT_GUIDE (item))
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{
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button = gtk_button_new_from_icon_name ("document-edit-symbolic");
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gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
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g_signal_connect (button, "clicked", G_CALLBACK (row_edit), win);
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g_object_set_data (G_OBJECT (row), "edit", button);
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gtk_container_add (GTK_CONTAINER (box), button);
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button = gtk_button_new_from_icon_name ("edit-delete-symbolic");
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gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
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g_signal_connect (button, "clicked", G_CALLBACK (row_delete), win);
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gtk_container_add (GTK_CONTAINER (box), button);
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}
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else if (GTK_IS_WIDGET (item))
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{
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button = gtk_button_new_from_icon_name ("edit-delete-symbolic");
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gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
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g_signal_connect (button, "clicked", G_CALLBACK (row_delete), win);
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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);
|
|
}
|