summaryrefslogtreecommitdiffstats
path: root/libgimpwidgets/gimpcellrenderertoggle.c
diff options
context:
space:
mode:
Diffstat (limited to 'libgimpwidgets/gimpcellrenderertoggle.c')
-rw-r--r--libgimpwidgets/gimpcellrenderertoggle.c576
1 files changed, 576 insertions, 0 deletions
diff --git a/libgimpwidgets/gimpcellrenderertoggle.c b/libgimpwidgets/gimpcellrenderertoggle.c
new file mode 100644
index 0000000..84dff32
--- /dev/null
+++ b/libgimpwidgets/gimpcellrenderertoggle.c
@@ -0,0 +1,576 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpcellrenderertoggle.c
+ * Copyright (C) 2003-2004 Sven Neumann <sven@gimp.org>
+ *
+ * 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 3 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
+ * Library 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
+ * <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include <gtk/gtk.h>
+
+#include "gimpwidgetstypes.h"
+
+#include "gimpwidgetsmarshal.h"
+#include "gimpcellrenderertoggle.h"
+
+
+/**
+ * SECTION: gimpcellrenderertoggle
+ * @title: GimpCellRendererToggle
+ * @short_description: A #GtkCellRendererToggle that displays icons instead
+ * of a checkbox.
+ *
+ * A #GtkCellRendererToggle that displays icons instead of a checkbox.
+ **/
+
+
+#define DEFAULT_ICON_SIZE GTK_ICON_SIZE_BUTTON
+
+
+enum
+{
+ CLICKED,
+ LAST_SIGNAL
+};
+
+enum
+{
+ PROP_0,
+ PROP_ICON_NAME,
+ PROP_STOCK_ID,
+ PROP_STOCK_SIZE,
+ PROP_OVERRIDE_BACKGROUND
+};
+
+
+typedef struct _GimpCellRendererTogglePrivate GimpCellRendererTogglePrivate;
+
+struct _GimpCellRendererTogglePrivate
+{
+ gchar *icon_name;
+ gboolean override_background;
+};
+
+#define GET_PRIVATE(obj) \
+ ((GimpCellRendererTogglePrivate *) gimp_cell_renderer_toggle_get_instance_private ((GimpCellRendererToggle *) (obj)))
+
+
+static void gimp_cell_renderer_toggle_finalize (GObject *object);
+static void gimp_cell_renderer_toggle_get_property (GObject *object,
+ guint param_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gimp_cell_renderer_toggle_set_property (GObject *object,
+ guint param_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_cell_renderer_toggle_get_size (GtkCellRenderer *cell,
+ GtkWidget *widget,
+ GdkRectangle *rectangle,
+ gint *x_offset,
+ gint *y_offset,
+ gint *width,
+ gint *height);
+static void gimp_cell_renderer_toggle_render (GtkCellRenderer *cell,
+ GdkWindow *window,
+ GtkWidget *widget,
+ GdkRectangle *background_area,
+ GdkRectangle *cell_area,
+ GdkRectangle *expose_area,
+ GtkCellRendererState flags);
+static gboolean gimp_cell_renderer_toggle_activate (GtkCellRenderer *cell,
+ GdkEvent *event,
+ GtkWidget *widget,
+ const gchar *path,
+ GdkRectangle *background_area,
+ GdkRectangle *cell_area,
+ GtkCellRendererState flags);
+static void gimp_cell_renderer_toggle_create_pixbuf (GimpCellRendererToggle *toggle,
+ GtkWidget *widget);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpCellRendererToggle, gimp_cell_renderer_toggle,
+ GTK_TYPE_CELL_RENDERER_TOGGLE)
+
+#define parent_class gimp_cell_renderer_toggle_parent_class
+
+static guint toggle_cell_signals[LAST_SIGNAL] = { 0 };
+
+
+static void
+gimp_cell_renderer_toggle_class_init (GimpCellRendererToggleClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (klass);
+
+ toggle_cell_signals[CLICKED] =
+ g_signal_new ("clicked",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GimpCellRendererToggleClass, clicked),
+ NULL, NULL,
+ _gimp_widgets_marshal_VOID__STRING_FLAGS,
+ G_TYPE_NONE, 2,
+ G_TYPE_STRING,
+ GDK_TYPE_MODIFIER_TYPE);
+
+ object_class->finalize = gimp_cell_renderer_toggle_finalize;
+ object_class->get_property = gimp_cell_renderer_toggle_get_property;
+ object_class->set_property = gimp_cell_renderer_toggle_set_property;
+
+ cell_class->get_size = gimp_cell_renderer_toggle_get_size;
+ cell_class->render = gimp_cell_renderer_toggle_render;
+ cell_class->activate = gimp_cell_renderer_toggle_activate;
+
+ g_object_class_install_property (object_class, PROP_ICON_NAME,
+ g_param_spec_string ("icon-name",
+ "Icon Name",
+ "The icon to display",
+ NULL,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT));
+
+ g_object_class_install_property (object_class, PROP_STOCK_ID,
+ g_param_spec_string ("stock-id",
+ "Stock ID",
+ "The icon to display, deprecated",
+ NULL,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT));
+
+ g_object_class_install_property (object_class, PROP_STOCK_SIZE,
+ g_param_spec_int ("stock-size",
+ "Stock Size",
+ "The icon size to use",
+ 0, G_MAXINT,
+ DEFAULT_ICON_SIZE,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT));
+
+ g_object_class_install_property (object_class, PROP_OVERRIDE_BACKGROUND,
+ g_param_spec_boolean ("override-background",
+ "Override Background",
+ "Draw the background if the row is selected",
+ FALSE,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT));
+}
+
+static void
+gimp_cell_renderer_toggle_init (GimpCellRendererToggle *toggle)
+{
+}
+
+static void
+gimp_cell_renderer_toggle_finalize (GObject *object)
+{
+ GimpCellRendererToggle *toggle = GIMP_CELL_RENDERER_TOGGLE (object);
+ GimpCellRendererTogglePrivate *priv = GET_PRIVATE (object);
+
+ g_clear_pointer (&priv->icon_name, g_free);
+ g_clear_pointer (&toggle->stock_id, g_free);
+
+ g_clear_object (&toggle->pixbuf);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_cell_renderer_toggle_get_property (GObject *object,
+ guint param_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpCellRendererToggle *toggle = GIMP_CELL_RENDERER_TOGGLE (object);
+ GimpCellRendererTogglePrivate *priv = GET_PRIVATE (object);
+
+ switch (param_id)
+ {
+ case PROP_ICON_NAME:
+ g_value_set_string (value, priv->icon_name);
+ break;
+
+ case PROP_STOCK_ID:
+ g_value_set_string (value, toggle->stock_id);
+ break;
+
+ case PROP_STOCK_SIZE:
+ g_value_set_int (value, toggle->stock_size);
+ break;
+
+ case PROP_OVERRIDE_BACKGROUND:
+ g_value_set_boolean (value, priv->override_background);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_cell_renderer_toggle_set_property (GObject *object,
+ guint param_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpCellRendererToggle *toggle = GIMP_CELL_RENDERER_TOGGLE (object);
+ GimpCellRendererTogglePrivate *priv = GET_PRIVATE (object);
+
+ switch (param_id)
+ {
+ case PROP_ICON_NAME:
+ if (priv->icon_name)
+ g_free (priv->icon_name);
+ priv->icon_name = g_value_dup_string (value);
+ break;
+
+ case PROP_STOCK_ID:
+ if (toggle->stock_id)
+ g_free (toggle->stock_id);
+ toggle->stock_id = g_value_dup_string (value);
+ break;
+
+ case PROP_STOCK_SIZE:
+ toggle->stock_size = g_value_get_int (value);
+ break;
+
+ case PROP_OVERRIDE_BACKGROUND:
+ priv->override_background = g_value_get_boolean (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+ break;
+ }
+
+ g_clear_object (&toggle->pixbuf);
+}
+
+static void
+gimp_cell_renderer_toggle_get_size (GtkCellRenderer *cell,
+ GtkWidget *widget,
+ GdkRectangle *cell_area,
+ gint *x_offset,
+ gint *y_offset,
+ gint *width,
+ gint *height)
+{
+ GimpCellRendererToggle *toggle = GIMP_CELL_RENDERER_TOGGLE (cell);
+ GimpCellRendererTogglePrivate *priv = GET_PRIVATE (cell);
+ GtkStyle *style = gtk_widget_get_style (widget);
+ gint calc_width;
+ gint calc_height;
+ gint pixbuf_width;
+ gint pixbuf_height;
+ gfloat xalign;
+ gfloat yalign;
+ gint xpad;
+ gint ypad;
+
+ if (! priv->icon_name && ! toggle->stock_id)
+ {
+ GTK_CELL_RENDERER_CLASS (parent_class)->get_size (cell,
+ widget,
+ cell_area,
+ x_offset, y_offset,
+ width, height);
+ return;
+ }
+
+ gtk_cell_renderer_get_alignment (cell, &xalign, &yalign);
+ gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
+
+ if (! toggle->pixbuf)
+ gimp_cell_renderer_toggle_create_pixbuf (toggle, widget);
+
+ pixbuf_width = gdk_pixbuf_get_width (toggle->pixbuf);
+ pixbuf_height = gdk_pixbuf_get_height (toggle->pixbuf);
+
+ calc_width = (pixbuf_width +
+ (gint) xpad * 2 + style->xthickness * 2);
+ calc_height = (pixbuf_height +
+ (gint) ypad * 2 + style->ythickness * 2);
+
+ if (width)
+ *width = calc_width;
+
+ if (height)
+ *height = calc_height;
+
+ if (cell_area)
+ {
+ if (x_offset)
+ {
+ *x_offset = (((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ?
+ (1.0 - xalign) : xalign) *
+ (cell_area->width - calc_width));
+ *x_offset = MAX (*x_offset, 0);
+ }
+
+ if (y_offset)
+ {
+ *y_offset = yalign * (cell_area->height - calc_height);
+ *y_offset = MAX (*y_offset, 0);
+ }
+ }
+}
+
+static void
+gimp_cell_renderer_toggle_render (GtkCellRenderer *cell,
+ GdkWindow *window,
+ GtkWidget *widget,
+ GdkRectangle *background_area,
+ GdkRectangle *cell_area,
+ GdkRectangle *expose_area,
+ GtkCellRendererState flags)
+{
+ GimpCellRendererToggle *toggle = GIMP_CELL_RENDERER_TOGGLE (cell);
+ GimpCellRendererTogglePrivate *priv = GET_PRIVATE (cell);
+ GtkStyle *style = gtk_widget_get_style (widget);
+ GdkRectangle toggle_rect;
+ GdkRectangle draw_rect;
+ GtkStateType state;
+ gboolean active;
+ gint xpad;
+ gint ypad;
+
+ if (! priv->icon_name && ! toggle->stock_id)
+ {
+ GTK_CELL_RENDERER_CLASS (parent_class)->render (cell, window, widget,
+ background_area,
+ cell_area, expose_area,
+ flags);
+ return;
+ }
+
+ if ((flags & GTK_CELL_RENDERER_SELECTED) &&
+ priv->override_background)
+ {
+ gboolean background_set;
+
+ g_object_get (cell,
+ "cell-background-set", &background_set,
+ NULL);
+
+ if (background_set)
+ {
+ cairo_t *cr = gdk_cairo_create (window);
+ GdkColor *color;
+
+ g_object_get (cell,
+ "cell-background-gdk", &color,
+ NULL);
+
+ gdk_cairo_rectangle (cr, background_area);
+ gdk_cairo_set_source_color (cr, color);
+ cairo_fill (cr);
+
+ gdk_color_free (color);
+ cairo_destroy (cr);
+ }
+ }
+
+ gimp_cell_renderer_toggle_get_size (cell, widget, cell_area,
+ &toggle_rect.x,
+ &toggle_rect.y,
+ &toggle_rect.width,
+ &toggle_rect.height);
+
+ gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
+
+ toggle_rect.x += cell_area->x + xpad;
+ toggle_rect.y += cell_area->y + ypad;
+ toggle_rect.width -= xpad * 2;
+ toggle_rect.height -= ypad * 2;
+
+ if (toggle_rect.width <= 0 || toggle_rect.height <= 0)
+ return;
+
+ active =
+ gtk_cell_renderer_toggle_get_active (GTK_CELL_RENDERER_TOGGLE (cell));
+
+ if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED)
+ {
+ if (gtk_widget_has_focus (widget))
+ state = GTK_STATE_SELECTED;
+ else
+ state = GTK_STATE_ACTIVE;
+ }
+ else
+ {
+ if (gtk_cell_renderer_toggle_get_activatable (GTK_CELL_RENDERER_TOGGLE (cell)))
+ state = GTK_STATE_NORMAL;
+ else
+ state = GTK_STATE_INSENSITIVE;
+ }
+
+ if (gdk_rectangle_intersect (expose_area, cell_area, &draw_rect) &&
+ (flags & GTK_CELL_RENDERER_PRELIT))
+ gtk_paint_shadow (style,
+ window,
+ state,
+ active ? GTK_SHADOW_IN : GTK_SHADOW_OUT,
+ &draw_rect,
+ widget, NULL,
+ toggle_rect.x, toggle_rect.y,
+ toggle_rect.width, toggle_rect.height);
+
+ if (active)
+ {
+ toggle_rect.x += style->xthickness;
+ toggle_rect.y += style->ythickness;
+ toggle_rect.width -= style->xthickness * 2;
+ toggle_rect.height -= style->ythickness * 2;
+
+ if (gdk_rectangle_intersect (&draw_rect, &toggle_rect, &draw_rect))
+ {
+ cairo_t *cr = gdk_cairo_create (window);
+ gboolean inconsistent;
+
+ gdk_cairo_rectangle (cr, &draw_rect);
+ cairo_clip (cr);
+
+ gdk_cairo_set_source_pixbuf (cr, toggle->pixbuf,
+ toggle_rect.x, toggle_rect.y);
+ cairo_paint (cr);
+
+ g_object_get (toggle,
+ "inconsistent", &inconsistent,
+ NULL);
+
+ if (inconsistent)
+ {
+ gdk_cairo_set_source_color (cr, &style->fg[state]);
+ cairo_set_line_width (cr, 1.5);
+ cairo_move_to (cr,
+ toggle_rect.x + toggle_rect.width - 1,
+ toggle_rect.y + 1);
+ cairo_line_to (cr,
+ toggle_rect.x + 1,
+ toggle_rect.y + toggle_rect.height - 1);
+ cairo_stroke (cr);
+ }
+
+ cairo_destroy (cr);
+ }
+ }
+}
+
+static gboolean
+gimp_cell_renderer_toggle_activate (GtkCellRenderer *cell,
+ GdkEvent *event,
+ GtkWidget *widget,
+ const gchar *path,
+ GdkRectangle *background_area,
+ GdkRectangle *cell_area,
+ GtkCellRendererState flags)
+{
+ GtkCellRendererToggle *toggle = GTK_CELL_RENDERER_TOGGLE (cell);
+
+ if (gtk_cell_renderer_toggle_get_activatable (toggle))
+ {
+ GdkModifierType state = 0;
+
+ if (event && ((GdkEventAny *) event)->type == GDK_BUTTON_PRESS)
+ state = ((GdkEventButton *) event)->state;
+
+ gimp_cell_renderer_toggle_clicked (GIMP_CELL_RENDERER_TOGGLE (cell),
+ path, state);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void
+gimp_cell_renderer_toggle_create_pixbuf (GimpCellRendererToggle *toggle,
+ GtkWidget *widget)
+{
+ GimpCellRendererTogglePrivate *priv = GET_PRIVATE (toggle);
+
+ g_clear_object (&toggle->pixbuf);
+
+ if (priv->icon_name)
+ {
+ gint width, height;
+
+ if (! gtk_icon_size_lookup_for_settings (gtk_widget_get_settings (widget),
+ toggle->stock_size,
+ &width, &height))
+ {
+ width = 20;
+ height = 20;
+ }
+
+ toggle->pixbuf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
+ priv->icon_name,
+ MIN (width, height), 0, NULL);
+ }
+ else
+ {
+ toggle->pixbuf = gtk_widget_render_icon (widget,
+ toggle->stock_id,
+ toggle->stock_size, NULL);
+ }
+}
+
+
+/**
+ * gimp_cell_renderer_toggle_new:
+ * @icon_name: the icon name of the icon to use for the active state
+ *
+ * Creates a custom version of the #GtkCellRendererToggle. Instead of
+ * showing the standard toggle button, it shows a named icon if the
+ * cell is active and no icon otherwise. This cell renderer is for
+ * example used in the Layers treeview to indicate and control the
+ * layer's visibility by showing %GIMP_STOCK_VISIBLE.
+ *
+ * Return value: a new #GimpCellRendererToggle
+ *
+ * Since: 2.2
+ **/
+GtkCellRenderer *
+gimp_cell_renderer_toggle_new (const gchar *icon_name)
+{
+ return g_object_new (GIMP_TYPE_CELL_RENDERER_TOGGLE,
+ "icon-name", icon_name,
+ NULL);
+}
+
+/**
+ * gimp_cell_renderer_toggle_clicked:
+ * @cell: a #GimpCellRendererToggle
+ * @path: the path to the clicked row
+ * @state: the modifier state
+ *
+ * Emits the "clicked" signal from a #GimpCellRendererToggle.
+ *
+ * Since: 2.2
+ **/
+void
+gimp_cell_renderer_toggle_clicked (GimpCellRendererToggle *cell,
+ const gchar *path,
+ GdkModifierType state)
+{
+ g_return_if_fail (GIMP_IS_CELL_RENDERER_TOGGLE (cell));
+ g_return_if_fail (path != NULL);
+
+ g_signal_emit (cell, toggle_cell_signals[CLICKED], 0, path, state);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 06:52:32 +0000