Tools/MiniBrowser/gtk/BrowserCellRendererVariant.c - WebKit - Git at Google

 /*
  * Copyright (C) 2011 Igalia S.L.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGE.
  */

 #include "BrowserCellRendererVariant.h"
 #include "BrowserMarshal.h"
 #include <errno.h>

 enum {
     PROP_0,

     PROP_VALUE,
     PROP_ADJUSTMENT
 };

 enum {
     CHANGED,

     LAST_SIGNAL
 };

 struct _BrowserCellRendererVariant {
     GtkCellRenderer parent;

     GValue *value;

     GtkCellRenderer *textRenderer;
     GtkCellRenderer *toggleRenderer;
     GtkCellRenderer *spinRenderer;
 };

 struct _BrowserCellRendererVariantClass {
     GtkCellRendererClass parent;
 };

 static guint signals[LAST_SIGNAL] = { 0 };

 G_DEFINE_TYPE(BrowserCellRendererVariant, browser_cell_renderer_variant, GTK_TYPE_CELL_RENDERER)

 static void browserCellRendererVariantFinalize(GObject *object)
 {
     BrowserCellRendererVariant *renderer = BROWSER_CELL_RENDERER_VARIANT(object);

     g_object_unref(renderer->toggleRenderer);
     g_object_unref(renderer->spinRenderer);
     g_object_unref(renderer->textRenderer);
     if (renderer->value)
         g_boxed_free(G_TYPE_VALUE, renderer->value);

     G_OBJECT_CLASS(browser_cell_renderer_variant_parent_class)->finalize(object);
 }

 static void browserCellRendererVariantGetProperty(GObject *object, guint propId, GValue *value, GParamSpec *pspec)
 {
     BrowserCellRendererVariant *renderer = BROWSER_CELL_RENDERER_VARIANT(object);

     switch (propId) {
     case PROP_VALUE:
         g_value_set_boxed(value, renderer->value);
         break;
     case PROP_ADJUSTMENT: {
         GtkAdjustment *adjustment = NULL;
         g_object_get(G_OBJECT(renderer->spinRenderer), "adjustment", &adjustment, NULL);
         if (adjustment) {
             g_value_set_object(value, adjustment);
             g_object_unref(adjustment);
         }
         break;
     }
     default:
         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propId, pspec);
     }
 }

 static void browserCellRendererVariantSetModeForValue(BrowserCellRendererVariant *renderer)
 {
     if (!renderer->value)
         return;

     GtkCellRendererMode mode;
     if (G_VALUE_HOLDS_BOOLEAN(renderer->value))
         mode = GTK_CELL_RENDERER_MODE_ACTIVATABLE;
     else if (G_VALUE_HOLDS_STRING(renderer->value) || G_VALUE_HOLDS_UINT(renderer->value))
         mode = GTK_CELL_RENDERER_MODE_EDITABLE;
     else
         return;

     g_object_set(G_OBJECT(renderer), "mode", mode, NULL);
 }

 static void browserCellRendererVariantSetProperty(GObject *object, guint propId, const GValue *value, GParamSpec *pspec)
 {
     BrowserCellRendererVariant *renderer = BROWSER_CELL_RENDERER_VARIANT(object);

     switch (propId) {
     case PROP_VALUE:
         if (renderer->value)
             g_boxed_free(G_TYPE_VALUE, renderer->value);
         renderer->value = g_value_dup_boxed(value);
         browserCellRendererVariantSetModeForValue(renderer);
         break;
     case PROP_ADJUSTMENT:
         g_object_set(G_OBJECT(renderer->spinRenderer), "adjustment", g_value_get_object(value), NULL);
         break;
     default:
         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propId, pspec);
     }
 }

 static GtkCellRenderer *browserCellRendererVariantGetRendererForValue(BrowserCellRendererVariant *renderer)
 {
     if (!renderer->value)
         return NULL;

     if (G_VALUE_HOLDS_BOOLEAN(renderer->value)) {
         g_object_set(G_OBJECT(renderer->toggleRenderer),
                      "active", g_value_get_boolean(renderer->value),
                      NULL);
         return renderer->toggleRenderer;
     }

     if (G_VALUE_HOLDS_STRING(renderer->value)) {
         g_object_set(G_OBJECT(renderer->textRenderer),
                      "text", g_value_get_string(renderer->value),
                      NULL);
         return renderer->textRenderer;
     }

     if (G_VALUE_HOLDS_UINT(renderer->value)) {
         gchar *text = g_strdup_printf("%u", g_value_get_uint(renderer->value));
         g_object_set(G_OBJECT(renderer->spinRenderer), "text", text, NULL);
         g_free(text);
         return renderer->spinRenderer;
     }

     return NULL;
 }

 static void browserCellRendererVariantCellRendererTextEdited(BrowserCellRendererVariant *renderer, const gchar *path, const gchar *newText)
 {
     if (!renderer->value)
         return;

     if (!G_VALUE_HOLDS_STRING(renderer->value))
         return;

     g_value_set_string(renderer->value, newText);
     g_signal_emit(renderer, signals[CHANGED], 0, path, renderer->value);
 }

 static void browserCellRendererVariantCellRendererSpinEdited(BrowserCellRendererVariant *renderer, const gchar *path, const gchar *newText)
 {
     if (!renderer->value)
         return;

     if (!G_VALUE_HOLDS_UINT(renderer->value))
         return;

     GtkAdjustment *adjustment;
     g_object_get(G_OBJECT(renderer->spinRenderer), "adjustment", &adjustment, NULL);
     if (!adjustment)
         return;

     errno = 0;
     gchar *endPtr;
     gdouble value = g_strtod(newText, &endPtr);
     if (errno || value > gtk_adjustment_get_upper(adjustment) || value < gtk_adjustment_get_lower(adjustment) || endPtr == newText) {
         g_warning("Invalid input for cell: %s\n", newText);
         return;
     }

     g_value_set_uint(renderer->value, (guint)value);
     g_signal_emit(renderer, signals[CHANGED], 0, path, renderer->value);
 }

 static gboolean browserCellRendererVariantCellRendererActivate(GtkCellRenderer *cell, GdkEvent *event, GtkWidget *widget, const gchar *path, const GdkRectangle *bgArea, const GdkRectangle *cellArea, GtkCellRendererState flags)
 {
     BrowserCellRendererVariant *renderer = BROWSER_CELL_RENDERER_VARIANT(cell);

     if (!renderer->value)
         return TRUE;

     if (!G_VALUE_HOLDS_BOOLEAN(renderer->value))
         return TRUE;

     g_value_set_boolean(renderer->value, !g_value_get_boolean(renderer->value));
     g_signal_emit(renderer, signals[CHANGED], 0, path, renderer->value);

     return TRUE;
 }

 static void browserCellRendererVariantCellRendererRender(GtkCellRenderer *cell, cairo_t *cr, GtkWidget *widget, const GdkRectangle *bgArea, const GdkRectangle *cellArea, GtkCellRendererState flags)
 {
     GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
     if (!renderer)
         return;

     GTK_CELL_RENDERER_GET_CLASS(renderer)->render(renderer, cr, widget, bgArea, cellArea, flags);
 }

 static GtkCellEditable *browserCellRendererVariantCellRendererStartEditing(GtkCellRenderer *cell, GdkEvent *event, GtkWidget *widget, const gchar *path, const GdkRectangle *bgArea, const GdkRectangle *cellArea, GtkCellRendererState flags)
 {
     GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
     if (!renderer)
         return NULL;

     if (!GTK_CELL_RENDERER_GET_CLASS(renderer)->start_editing)
         return NULL;

     return GTK_CELL_RENDERER_GET_CLASS(renderer)->start_editing(renderer, event, widget, path, bgArea, cellArea, flags);
 }

 static void browserCellRendererVariantCellRendererGetPreferredWidth(GtkCellRenderer *cell, GtkWidget *widget, gint *minimumWidth, gint *naturalWidth)
 {
     GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
     if (!renderer)
         return;

     GTK_CELL_RENDERER_GET_CLASS(renderer)->get_preferred_width(renderer, widget, minimumWidth, naturalWidth);
 }

 static void browserCellRendererVariantCellRendererGetPreferredHeight(GtkCellRenderer *cell, GtkWidget *widget, gint *minimumHeight, gint *naturalHeight)
 {
     GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
     if (!renderer)
         return;

     GTK_CELL_RENDERER_GET_CLASS(renderer)->get_preferred_height(renderer, widget, minimumHeight, naturalHeight);
 }

 static void browserCellRendererVariantCellRendererGetPreferredWidthForHeight(GtkCellRenderer *cell, GtkWidget *widget, gint height, gint *minimumWidth, gint *naturalWidth)
 {
     GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
     if (!renderer)
         return;

     GTK_CELL_RENDERER_GET_CLASS(renderer)->get_preferred_width_for_height(renderer, widget, height, minimumWidth, naturalWidth);
 }

 static void browserCellRendererVariantCellRendererGetPreferredHeightForWidth(GtkCellRenderer *cell, GtkWidget *widget, gint width, gint *minimumHeight, gint *naturalHeight)
 {
     GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
     if (!renderer)
         return;

     GTK_CELL_RENDERER_GET_CLASS(renderer)->get_preferred_height_for_width(renderer, widget, width, minimumHeight, naturalHeight);
 }

 static void browserCellRendererVariantCellRendererGetAlignedArea(GtkCellRenderer *cell, GtkWidget *widget, GtkCellRendererState flags, const GdkRectangle *cellArea, GdkRectangle *alignedArea)
 {
     GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
     if (!renderer)
         return;

     GTK_CELL_RENDERER_GET_CLASS(renderer)->get_aligned_area(renderer, widget, flags, cellArea, alignedArea);
 }

 static void browser_cell_renderer_variant_init(BrowserCellRendererVariant *renderer)
 {
     g_object_set(renderer, "mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE, NULL);

     renderer->toggleRenderer = gtk_cell_renderer_toggle_new();
     g_object_set(G_OBJECT(renderer->toggleRenderer), "xalign", 0.0, NULL);
     g_object_ref_sink(renderer->toggleRenderer);

     renderer->textRenderer = gtk_cell_renderer_text_new();
     g_signal_connect_swapped(renderer->textRenderer, "edited",
                              G_CALLBACK(browserCellRendererVariantCellRendererTextEdited), renderer);
     g_object_set(G_OBJECT(renderer->textRenderer), "editable", TRUE, NULL);
     g_object_ref_sink(renderer->textRenderer);

     renderer->spinRenderer = gtk_cell_renderer_spin_new();
     g_signal_connect_swapped(renderer->spinRenderer, "edited",
                              G_CALLBACK(browserCellRendererVariantCellRendererSpinEdited), renderer);
     g_object_set(G_OBJECT(renderer->spinRenderer), "editable", TRUE, NULL);
 }

 static void browser_cell_renderer_variant_class_init(BrowserCellRendererVariantClass *klass)
 {
     GObjectClass *gobjectClass = G_OBJECT_CLASS(klass);
     GtkCellRendererClass *cellRendererClass = GTK_CELL_RENDERER_CLASS(klass);

     gobjectClass->get_property = browserCellRendererVariantGetProperty;
     gobjectClass->set_property = browserCellRendererVariantSetProperty;
     gobjectClass->finalize = browserCellRendererVariantFinalize;

     cellRendererClass->activate = browserCellRendererVariantCellRendererActivate;
     cellRendererClass->render = browserCellRendererVariantCellRendererRender;
     cellRendererClass->start_editing = browserCellRendererVariantCellRendererStartEditing;
     cellRendererClass->get_preferred_width = browserCellRendererVariantCellRendererGetPreferredWidth;
     cellRendererClass->get_preferred_height = browserCellRendererVariantCellRendererGetPreferredHeight;
     cellRendererClass->get_preferred_width_for_height = browserCellRendererVariantCellRendererGetPreferredWidthForHeight;
     cellRendererClass->get_preferred_height_for_width = browserCellRendererVariantCellRendererGetPreferredHeightForWidth;
     cellRendererClass->get_aligned_area = browserCellRendererVariantCellRendererGetAlignedArea;

     g_object_class_install_property(gobjectClass,
                                     PROP_VALUE,
                                     g_param_spec_boxed("value",
                                                        "Value",
                                                        "The cell renderer value",
                                                        G_TYPE_VALUE,
                                                        G_PARAM_READWRITE));
     g_object_class_install_property(gobjectClass,
                                     PROP_ADJUSTMENT,
                                     g_param_spec_object("adjustment",
                                                         "Adjustment",
                                                         "The adjustment that holds the value of the spin button",
                                                         GTK_TYPE_ADJUSTMENT,
                                                         G_PARAM_READWRITE));

     signals[CHANGED] =
         g_signal_new("changed",
                      G_TYPE_FROM_CLASS(gobjectClass),
                      G_SIGNAL_RUN_LAST,
                      0, NULL, NULL,
                      browser_marshal_VOID__STRING_BOXED,
                      G_TYPE_NONE, 2,
                      G_TYPE_STRING, G_TYPE_VALUE);
 }

 GtkCellRenderer *browser_cell_renderer_variant_new(void)
 {
     return GTK_CELL_RENDERER(g_object_new(BROWSER_TYPE_CELL_RENDERER_VARIANT, NULL));
 }
	/*
	* Copyright (C) 2011 Igalia S.L.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	*
	* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
	* THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#include "BrowserCellRendererVariant.h"
	#include "BrowserMarshal.h"
	#include <errno.h>

	enum {
	PROP_0,

	PROP_VALUE,
	PROP_ADJUSTMENT
	};

	enum {
	CHANGED,

	LAST_SIGNAL
	};

	struct _BrowserCellRendererVariant {
	GtkCellRenderer parent;

	GValue *value;

	GtkCellRenderer *textRenderer;
	GtkCellRenderer *toggleRenderer;
	GtkCellRenderer *spinRenderer;
	};

	struct _BrowserCellRendererVariantClass {
	GtkCellRendererClass parent;
	};

	static guint signals[LAST_SIGNAL] = { 0 };

	G_DEFINE_TYPE(BrowserCellRendererVariant, browser_cell_renderer_variant, GTK_TYPE_CELL_RENDERER)

	static void browserCellRendererVariantFinalize(GObject *object)
	{
	BrowserCellRendererVariant *renderer = BROWSER_CELL_RENDERER_VARIANT(object);

	g_object_unref(renderer->toggleRenderer);
	g_object_unref(renderer->spinRenderer);
	g_object_unref(renderer->textRenderer);
	if (renderer->value)
	g_boxed_free(G_TYPE_VALUE, renderer->value);

	G_OBJECT_CLASS(browser_cell_renderer_variant_parent_class)->finalize(object);
	}

	static void browserCellRendererVariantGetProperty(GObject object, guint propId, GValue value, GParamSpec *pspec)
	{
	BrowserCellRendererVariant *renderer = BROWSER_CELL_RENDERER_VARIANT(object);

	switch (propId) {
	case PROP_VALUE:
	g_value_set_boxed(value, renderer->value);
	break;
	case PROP_ADJUSTMENT: {
	GtkAdjustment *adjustment = NULL;
	g_object_get(G_OBJECT(renderer->spinRenderer), "adjustment", &adjustment, NULL);
	if (adjustment) {
	g_value_set_object(value, adjustment);
	g_object_unref(adjustment);
	}
	break;
	}
	default:
	G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propId, pspec);
	}
	}

	static void browserCellRendererVariantSetModeForValue(BrowserCellRendererVariant *renderer)
	{
	if (!renderer->value)
	return;

	GtkCellRendererMode mode;
	if (G_VALUE_HOLDS_BOOLEAN(renderer->value))
	mode = GTK_CELL_RENDERER_MODE_ACTIVATABLE;
	else if (G_VALUE_HOLDS_STRING(renderer->value) \|\| G_VALUE_HOLDS_UINT(renderer->value))
	mode = GTK_CELL_RENDERER_MODE_EDITABLE;
	else
	return;

	g_object_set(G_OBJECT(renderer), "mode", mode, NULL);
	}

	static void browserCellRendererVariantSetProperty(GObject object, guint propId, const GValue value, GParamSpec *pspec)
	{
	BrowserCellRendererVariant *renderer = BROWSER_CELL_RENDERER_VARIANT(object);

	switch (propId) {
	case PROP_VALUE:
	if (renderer->value)
	g_boxed_free(G_TYPE_VALUE, renderer->value);
	renderer->value = g_value_dup_boxed(value);
	browserCellRendererVariantSetModeForValue(renderer);
	break;
	case PROP_ADJUSTMENT:
	g_object_set(G_OBJECT(renderer->spinRenderer), "adjustment", g_value_get_object(value), NULL);
	break;
	default:
	G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propId, pspec);
	}
	}

	static GtkCellRenderer browserCellRendererVariantGetRendererForValue(BrowserCellRendererVariant renderer)
	{
	if (!renderer->value)
	return NULL;

	if (G_VALUE_HOLDS_BOOLEAN(renderer->value)) {
	g_object_set(G_OBJECT(renderer->toggleRenderer),
	"active", g_value_get_boolean(renderer->value),
	NULL);
	return renderer->toggleRenderer;
	}

	if (G_VALUE_HOLDS_STRING(renderer->value)) {
	g_object_set(G_OBJECT(renderer->textRenderer),
	"text", g_value_get_string(renderer->value),
	NULL);
	return renderer->textRenderer;
	}

	if (G_VALUE_HOLDS_UINT(renderer->value)) {
	gchar *text = g_strdup_printf("%u", g_value_get_uint(renderer->value));
	g_object_set(G_OBJECT(renderer->spinRenderer), "text", text, NULL);
	g_free(text);
	return renderer->spinRenderer;
	}

	return NULL;
	}

	static void browserCellRendererVariantCellRendererTextEdited(BrowserCellRendererVariant renderer, const gchar path, const gchar *newText)
	{
	if (!renderer->value)
	return;

	if (!G_VALUE_HOLDS_STRING(renderer->value))
	return;

	g_value_set_string(renderer->value, newText);
	g_signal_emit(renderer, signals[CHANGED], 0, path, renderer->value);
	}

	static void browserCellRendererVariantCellRendererSpinEdited(BrowserCellRendererVariant renderer, const gchar path, const gchar *newText)
	{
	if (!renderer->value)
	return;

	if (!G_VALUE_HOLDS_UINT(renderer->value))
	return;

	GtkAdjustment *adjustment;
	g_object_get(G_OBJECT(renderer->spinRenderer), "adjustment", &adjustment, NULL);
	if (!adjustment)
	return;

	errno = 0;
	gchar *endPtr;
	gdouble value = g_strtod(newText, &endPtr);
	if (errno \|\| value > gtk_adjustment_get_upper(adjustment) \|\| value < gtk_adjustment_get_lower(adjustment) \|\| endPtr == newText) {
	g_warning("Invalid input for cell: %s\n", newText);
	return;
	}

	g_value_set_uint(renderer->value, (guint)value);
	g_signal_emit(renderer, signals[CHANGED], 0, path, renderer->value);
	}

	static gboolean browserCellRendererVariantCellRendererActivate(GtkCellRenderer cell, GdkEvent event, GtkWidget widget, const gchar path, const GdkRectangle bgArea, const GdkRectangle cellArea, GtkCellRendererState flags)
	{
	BrowserCellRendererVariant *renderer = BROWSER_CELL_RENDERER_VARIANT(cell);

	if (!renderer->value)
	return TRUE;

	if (!G_VALUE_HOLDS_BOOLEAN(renderer->value))
	return TRUE;

	g_value_set_boolean(renderer->value, !g_value_get_boolean(renderer->value));
	g_signal_emit(renderer, signals[CHANGED], 0, path, renderer->value);

	return TRUE;
	}

	static void browserCellRendererVariantCellRendererRender(GtkCellRenderer cell, cairo_t cr, GtkWidget widget, const GdkRectangle bgArea, const GdkRectangle *cellArea, GtkCellRendererState flags)
	{
	GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
	if (!renderer)
	return;

	GTK_CELL_RENDERER_GET_CLASS(renderer)->render(renderer, cr, widget, bgArea, cellArea, flags);
	}

	static GtkCellEditable browserCellRendererVariantCellRendererStartEditing(GtkCellRenderer cell, GdkEvent event, GtkWidget widget, const gchar path, const GdkRectangle bgArea, const GdkRectangle *cellArea, GtkCellRendererState flags)
	{
	GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
	if (!renderer)
	return NULL;

	if (!GTK_CELL_RENDERER_GET_CLASS(renderer)->start_editing)
	return NULL;

	return GTK_CELL_RENDERER_GET_CLASS(renderer)->start_editing(renderer, event, widget, path, bgArea, cellArea, flags);
	}

	static void browserCellRendererVariantCellRendererGetPreferredWidth(GtkCellRenderer cell, GtkWidget widget, gint minimumWidth, gint naturalWidth)
	{
	GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
	if (!renderer)
	return;

	GTK_CELL_RENDERER_GET_CLASS(renderer)->get_preferred_width(renderer, widget, minimumWidth, naturalWidth);
	}

	static void browserCellRendererVariantCellRendererGetPreferredHeight(GtkCellRenderer cell, GtkWidget widget, gint minimumHeight, gint naturalHeight)
	{
	GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
	if (!renderer)
	return;

	GTK_CELL_RENDERER_GET_CLASS(renderer)->get_preferred_height(renderer, widget, minimumHeight, naturalHeight);
	}

	static void browserCellRendererVariantCellRendererGetPreferredWidthForHeight(GtkCellRenderer cell, GtkWidget widget, gint height, gint minimumWidth, gint naturalWidth)
	{
	GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
	if (!renderer)
	return;

	GTK_CELL_RENDERER_GET_CLASS(renderer)->get_preferred_width_for_height(renderer, widget, height, minimumWidth, naturalWidth);
	}

	static void browserCellRendererVariantCellRendererGetPreferredHeightForWidth(GtkCellRenderer cell, GtkWidget widget, gint width, gint minimumHeight, gint naturalHeight)
	{
	GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
	if (!renderer)
	return;

	GTK_CELL_RENDERER_GET_CLASS(renderer)->get_preferred_height_for_width(renderer, widget, width, minimumHeight, naturalHeight);
	}

	static void browserCellRendererVariantCellRendererGetAlignedArea(GtkCellRenderer cell, GtkWidget widget, GtkCellRendererState flags, const GdkRectangle cellArea, GdkRectangle alignedArea)
	{
	GtkCellRenderer *renderer = browserCellRendererVariantGetRendererForValue(BROWSER_CELL_RENDERER_VARIANT(cell));
	if (!renderer)
	return;

	GTK_CELL_RENDERER_GET_CLASS(renderer)->get_aligned_area(renderer, widget, flags, cellArea, alignedArea);
	}

	static void browser_cell_renderer_variant_init(BrowserCellRendererVariant *renderer)
	{
	g_object_set(renderer, "mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE, NULL);

	renderer->toggleRenderer = gtk_cell_renderer_toggle_new();
	g_object_set(G_OBJECT(renderer->toggleRenderer), "xalign", 0.0, NULL);
	g_object_ref_sink(renderer->toggleRenderer);

	renderer->textRenderer = gtk_cell_renderer_text_new();
	g_signal_connect_swapped(renderer->textRenderer, "edited",
	G_CALLBACK(browserCellRendererVariantCellRendererTextEdited), renderer);
	g_object_set(G_OBJECT(renderer->textRenderer), "editable", TRUE, NULL);
	g_object_ref_sink(renderer->textRenderer);

	renderer->spinRenderer = gtk_cell_renderer_spin_new();
	g_signal_connect_swapped(renderer->spinRenderer, "edited",
	G_CALLBACK(browserCellRendererVariantCellRendererSpinEdited), renderer);
	g_object_set(G_OBJECT(renderer->spinRenderer), "editable", TRUE, NULL);
	}

	static void browser_cell_renderer_variant_class_init(BrowserCellRendererVariantClass *klass)
	{
	GObjectClass *gobjectClass = G_OBJECT_CLASS(klass);
	GtkCellRendererClass *cellRendererClass = GTK_CELL_RENDERER_CLASS(klass);

	gobjectClass->get_property = browserCellRendererVariantGetProperty;
	gobjectClass->set_property = browserCellRendererVariantSetProperty;
	gobjectClass->finalize = browserCellRendererVariantFinalize;

	cellRendererClass->activate = browserCellRendererVariantCellRendererActivate;
	cellRendererClass->render = browserCellRendererVariantCellRendererRender;
	cellRendererClass->start_editing = browserCellRendererVariantCellRendererStartEditing;
	cellRendererClass->get_preferred_width = browserCellRendererVariantCellRendererGetPreferredWidth;
	cellRendererClass->get_preferred_height = browserCellRendererVariantCellRendererGetPreferredHeight;
	cellRendererClass->get_preferred_width_for_height = browserCellRendererVariantCellRendererGetPreferredWidthForHeight;
	cellRendererClass->get_preferred_height_for_width = browserCellRendererVariantCellRendererGetPreferredHeightForWidth;
	cellRendererClass->get_aligned_area = browserCellRendererVariantCellRendererGetAlignedArea;

	g_object_class_install_property(gobjectClass,
	PROP_VALUE,
	g_param_spec_boxed("value",
	"Value",
	"The cell renderer value",
	G_TYPE_VALUE,
	G_PARAM_READWRITE));
	g_object_class_install_property(gobjectClass,
	PROP_ADJUSTMENT,
	g_param_spec_object("adjustment",
	"Adjustment",
	"The adjustment that holds the value of the spin button",
	GTK_TYPE_ADJUSTMENT,
	G_PARAM_READWRITE));

	signals[CHANGED] =
	g_signal_new("changed",
	G_TYPE_FROM_CLASS(gobjectClass),
	G_SIGNAL_RUN_LAST,
	0, NULL, NULL,
	browser_marshal_VOID__STRING_BOXED,
	G_TYPE_NONE, 2,
	G_TYPE_STRING, G_TYPE_VALUE);
	}

	GtkCellRenderer *browser_cell_renderer_variant_new(void)
	{
	return GTK_CELL_RENDERER(g_object_new(BROWSER_TYPE_CELL_RENDERER_VARIANT, NULL));
	}