inicial

1 files changed, 492 insertions, 0 deletions

diff --git a/cut-n-paste/gimpcellrenderertoggle/gimpcellrenderertoggle.c b/cut-n-paste/gimpcellrenderertoggle/gimpcellrenderertoggle.c
new file mode 100644
index 00000000..e9a25f15
--- /dev/null
+++ b/cut-n-paste/gimpcellrenderertoggle/gimpcellrenderertoggle.c
@@ -0,0 +1,492 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpcellrenderertoggle.c
+ * Copyright (C) 2003-2004  Sven Neumann <[email protected]>
+ *
+ * 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
+ * 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, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <config.h>
+
+#include "gimpwidgetsmarshal.h"
+#include "gimpcellrenderertoggle.h"
+
+
+#define DEFAULT_ICON_SIZE  GTK_ICON_SIZE_BUTTON
+
+
+enum
+{
+  CLICKED,
+  LAST_SIGNAL
+};
+
+enum
+{
+  PROP_0,
+  PROP_STOCK_ID,
+  PROP_STOCK_SIZE
+};
+
+
+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 (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_STOCK_ID,
+                                   g_param_spec_string ("stock-id",
+                                                        NULL, NULL,
+                                                        NULL,
+                                                        G_PARAM_READWRITE |
+                                                        G_PARAM_CONSTRUCT));
+  g_object_class_install_property (object_class,
+                                   PROP_STOCK_SIZE,
+                                   g_param_spec_int ("stock-size",
+                                                     NULL, NULL,
+                                                     0, G_MAXINT,
+                                                     DEFAULT_ICON_SIZE,
+                                                     G_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);
+
+  if (toggle->stock_id)
+    {
+      g_free (toggle->stock_id);
+      toggle->stock_id = NULL;
+    }
+
+  if (toggle->pixbuf)
+    {
+      g_object_unref (toggle->pixbuf);
+      toggle->pixbuf = NULL;
+    }
+
+  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);
+
+  switch (param_id)
+    {
+    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;
+
+    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);
+
+  switch (param_id)
+    {
+    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;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    }
+
+  if (toggle->pixbuf)
+    {
+      g_object_unref (toggle->pixbuf);
+      toggle->pixbuf = NULL;
+    }
+}
+
+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);
+  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 (! 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);
+  GtkStyle               *style  = gtk_widget_get_style (widget);
+  GdkRectangle            toggle_rect;
+  GdkRectangle            draw_rect;
+  GtkStateType            state;
+  gboolean                active;
+  gint                    xpad;
+  gint                    ypad;
+
+  if (! toggle->stock_id)
+    {
+      GTK_CELL_RENDERER_CLASS (parent_class)->render (cell, window, widget,
+                                                      background_area,
+                                                      cell_area, expose_area,
+                                                      flags);
+      return;
+    }
+
+  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 (!gtk_cell_renderer_get_sensitive (cell))
+    {
+      state = GTK_STATE_INSENSITIVE;
+    }
+  else 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)
+    {
+      GdkPixbuf *insensitive = NULL;
+      GdkPixbuf *pixbuf = toggle->pixbuf;
+      
+      toggle_rect.x      += style->xthickness;
+      toggle_rect.y      += style->ythickness;
+      toggle_rect.width  -= style->xthickness * 2;
+      toggle_rect.height -= style->ythickness * 2;
+
+      if (state == GTK_STATE_INSENSITIVE)
+        {
+	  GtkIconSource *source;
+
+	  source = gtk_icon_source_new ();
+	  gtk_icon_source_set_pixbuf (source, pixbuf);
+	  /* The size here is arbitrary; since size isn't
+	   * wildcarded in the source, it isn't supposed to be
+	   * scaled by the engine function
+	   */
+	  gtk_icon_source_set_size (source, GTK_ICON_SIZE_SMALL_TOOLBAR);
+	  gtk_icon_source_set_size_wildcarded (source, FALSE);
+
+	  insensitive = gtk_style_render_icon (gtk_widget_get_style (widget),
+					       source,
+					       gtk_widget_get_direction (widget),
+					       GTK_STATE_INSENSITIVE,
+					       /* arbitrary */
+					       (GtkIconSize)-1,
+					       widget,
+					       "gimpcellrenderertoggle");
+
+	  gtk_icon_source_free (source);
+
+	  pixbuf = insensitive;
+	}
+
+      if (gdk_rectangle_intersect (&draw_rect, &toggle_rect, &draw_rect))
+        {
+	  cairo_t *cr;
+	  
+	  cr = gdk_cairo_create (window);
+
+	  gdk_cairo_set_source_pixbuf (cr, pixbuf, toggle_rect.x, toggle_rect.y);
+	  gdk_cairo_rectangle (cr, &draw_rect);
+	  cairo_fill (cr);
+	  
+	  cairo_destroy (cr);
+	}
+	      
+      if (insensitive)
+        g_object_unref (insensitive);
+    }
+}
+
+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;
+
+      GTK_CELL_RENDERER_CLASS (parent_class)->activate (cell, event, widget,
+							path, background_area,
+							cell_area, flags);
+
+      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)
+{
+  if (toggle->pixbuf)
+    g_object_unref (toggle->pixbuf);
+
+  toggle->pixbuf = gtk_widget_render_icon (widget,
+                                           toggle->stock_id,
+                                           toggle->stock_size, NULL);
+}
+
+
+/**
+ * gimp_cell_renderer_toggle_new:
+ * @stock_id: the stock_id 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 stock 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: GIMP 2.2
+ **/
+GtkCellRenderer *
+gimp_cell_renderer_toggle_new (const gchar *stock_id)
+{
+  return g_object_new (GIMP_TYPE_CELL_RENDERER_TOGGLE,
+                       "stock_id", stock_id,
+                       NULL);
+}
+
+/**
+ * gimp_cell_renderer_toggle_clicked:
+ * @cell: a #GimpCellRendererToggle
+ * @path:
+ * @state:
+ *
+ * Emits the "clicked" signal from a #GimpCellRendererToggle.
+ *
+ * Since: GIMP 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);
+}