/* * render_button.c * Copyright (C) John Stebbins 2008-2019 * * render_button.c is free software. * * You may redistribute it and/or modify it under the terms of the * GNU General Public License, as published by the Free Software * Foundation; either version 2 of the License, or (at your option) * any later version. * * render_button.c 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with main.c. If not, write to: * The Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor * Boston, MA 02110-1301, USA. */ #include "marshalers.h" #include "renderer_button.h" #define MyGdkRectangle const GdkRectangle /* Some boring function declarations: GObject type system stuff */ static void custom_cell_renderer_button_init (CustomCellRendererButton *cellprogress); static void custom_cell_renderer_button_class_init (CustomCellRendererButtonClass *klass); static void custom_cell_renderer_button_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec); static void custom_cell_renderer_button_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec); static void custom_cell_renderer_button_finalize (GObject *gobject); // My customized part that adds "clicked" signal static gboolean custom_cell_renderer_button_activate ( GtkCellRenderer *cell, GdkEvent *event, GtkWidget *widget, const gchar *path, MyGdkRectangle *background_area, MyGdkRectangle *cell_area, GtkCellRendererState flags); enum { CLICKED, LAST_SIGNAL }; static guint button_cell_signals[LAST_SIGNAL] = { 0 }; static gpointer parent_class; /*************************************************************************** * * custom_cell_renderer_button_get_type: here we register our type with * the GObject type system if we * haven't done so yet. Everything * else is done in the callbacks. * ***************************************************************************/ GType custom_cell_renderer_button_get_type (void) { static GType cell_button_type = 0; if (cell_button_type == 0) { static const GTypeInfo cell_button_info = { sizeof (CustomCellRendererButtonClass), NULL, /* base_init */ NULL, /* base_finalize */ (GClassInitFunc) custom_cell_renderer_button_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (CustomCellRendererButton), 0, /* n_preallocs */ (GInstanceInitFunc) custom_cell_renderer_button_init, }; /* Derive from GtkCellRendererPixbuf */ cell_button_type = g_type_register_static (GTK_TYPE_CELL_RENDERER_PIXBUF, "CustomCellRendererButton", &cell_button_info, 0); } return cell_button_type; } /*************************************************************************** * * custom_cell_renderer_button_init: set some default properties of the * parent (GtkCellRendererPixbuf). * ***************************************************************************/ static void custom_cell_renderer_button_init (CustomCellRendererButton *cellbutton) { g_object_set(cellbutton, "mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE, NULL); g_object_set(cellbutton, "xpad", 2, NULL); g_object_set(cellbutton, "ypad", 2, NULL); } /*************************************************************************** * * custom_cell_renderer_button_class_init: * * set up our own get_property and set_property functions, and * override the parent's functions that we need to implement. * If you want cells that can be activated on their own (ie. not * just the whole row selected) or cells that are editable, you * will need to override 'activate' and 'start_editing' as well. * ***************************************************************************/ static void custom_cell_renderer_button_class_init (CustomCellRendererButtonClass *klass) { GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS(klass); GObjectClass *object_class = G_OBJECT_CLASS(klass); parent_class = g_type_class_peek_parent (klass); object_class->finalize = custom_cell_renderer_button_finalize; /* Hook up functions to set and get our * custom cell renderer properties */ object_class->get_property = custom_cell_renderer_button_get_property; object_class->set_property = custom_cell_renderer_button_set_property; // Override activate cell_class->activate = custom_cell_renderer_button_activate; button_cell_signals[CLICKED] = g_signal_new (g_intern_static_string ("clicked"), G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (CustomCellRendererButtonClass, clicked), NULL, NULL, ghb_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); } /*************************************************************************** * * custom_cell_renderer_button_finalize: free any resources here * ***************************************************************************/ static void custom_cell_renderer_button_finalize (GObject *object) { /* If you need to do anything with the renderer button ... CustomCellRendererProgress *cellrendererbutton = CUSTOM_CELL_RENDERER_BUTTON(object); */ /* Free any dynamically allocated resources here */ (* G_OBJECT_CLASS (parent_class)->finalize) (object); } /*************************************************************************** * * custom_cell_renderer_button_get_property: as it says * ***************************************************************************/ static void custom_cell_renderer_button_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *psec) { //CustomCellRendererButton *cellbutton = CUSTOM_CELL_RENDERER_BUTTON(object); switch (param_id) { default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, psec); break; } } /*************************************************************************** * * custom_cell_renderer_button_set_property: as it says * ***************************************************************************/ static void custom_cell_renderer_button_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec) { //CustomCellRendererButton *cellbutton = CUSTOM_CELL_RENDERER_BUTTON(object); switch (param_id) { default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec); break; } } /*************************************************************************** * * custom_cell_renderer_button_new: return a new cell renderer instance * ***************************************************************************/ GtkCellRenderer * custom_cell_renderer_button_new (void) { return g_object_new(CUSTOM_TYPE_CELL_RENDERER_BUTTON, NULL); } static gboolean custom_cell_renderer_button_activate ( GtkCellRenderer *cell, GdkEvent *event, GtkWidget *widget, const gchar *path, MyGdkRectangle *background_area, MyGdkRectangle *cell_area, GtkCellRendererState flags) { g_debug("custom_cell_renderer_button_activate ()\n"); g_signal_emit (cell, button_cell_signals[CLICKED], 0, path); return TRUE; }