AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity
c86ee0558c
gtk2/gtk/gtkcelllayout.c
Matthias Clasen 7f6a964c47 Docs: Remove all entities and turn off sgml mode 
With all element markup gone, it is time to turn off
sgml mode, and get rid of entities as well.
2014-02-09 17:58:07 -05:00

928 lines
28 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* gtkcelllayout.c
* Copyright (C) 2003 Kristian Rietveld <kris@gtk.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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 Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* SECTION:gtkcelllayout
* @Short_Description: An interface for packing cells
* @Title: GtkCellLayout
*
* #GtkCellLayout is an interface to be implemented by all objects which
* want to provide a #GtkTreeViewColumn like API for packing cells,
* setting attributes and data funcs.
*
* One of the notable features provided by implementations of
* GtkCellLayout are attributes. Attributes let you set the properties
* in flexible ways. They can just be set to constant values like regular
* properties. But they can also be mapped to a column of the underlying
* tree model with gtk_cell_layout_set_attributes(), which means that the value
* of the attribute can change from cell to cell as they are rendered by
* the cell renderer. Finally, it is possible to specify a function with
* gtk_cell_layout_set_cell_data_func() that is called to determine the
* value of the attribute for each cell that is rendered.
*
* # GtkCellLayouts as GtkBuildable
*
* Implementations of GtkCellLayout which also implement the GtkBuildable
* interface (#GtkCellView, #GtkIconView, #GtkComboBox,
* #GtkEntryCompletion, #GtkTreeViewColumn) accept GtkCellRenderer objects
* as <child> elements in UI definitions. They support a custom <attributes>
* element for their children, which can contain multiple <attribute>
* elements. Each <attribute> element has a name attribute which specifies
* a property of the cell renderer; the content of the element is the
* attribute value.
*
* This is an example of a UI definition fragment specifying attributes:
* |[
* <object class="GtkCellView">
* <child>
* <object class="GtkCellRendererText"/>
* <attributes>
* <attribute name="text">0</attribute>
* </attributes>
* </child>"
* </object>
* ]|
*
* Furthermore for implementations of GtkCellLayout that use a #GtkCellArea
* to lay out cells (all GtkCellLayouts in GTK+ use a GtkCellArea)
* [cell properties][cell-properties] can also be defined in the format by
* specifying the custom <cell-packing> attribute which can contain multiple
* <property> elements defined in the normal way.
*
* Here is a UI definition fragment specifying cell properties:
*
* |[
* <object class="GtkTreeViewColumn">
* <child>
* <object class="GtkCellRendererText"/>
* <cell-packing>
* <property name="align">True</property>
* <property name="expand">False</property>
* </cell-packing>
* </child>"
* </object>
* ]|
*
* # Subclassing GtkCellLayout implementations
*
* When subclassing a widget that implements #GtkCellLayout like
* #GtkIconView or #GtkComboBox, there are some considerations related
* to the fact that these widgets internally use a #GtkCellArea.
* The cell area is exposed as a construct-only property by these
* widgets. This means that it is possible to e.g. do
*
* |[<!-- language="C" -->
* combo = g_object_new (GTK_TYPE_COMBO_BOX, "cell-area", my_cell_area, NULL);
* ]|
*
* to use a custom cell area with a combo box. But construct properties
* are only initialized after instance init()
* functions have run, which means that using functions which rely on
* the existence of the cell area in your subclass’ init() function will
* cause the default cell area to be instantiated. In this case, a provided
* construct property value will be ignored (with a warning, to alert
* you to the problem).
*
* |[<!-- language="C" -->
* static void
* my_combo_box_init (MyComboBox *b)
* {
* GtkCellRenderer *cell;
*
* cell = gtk_cell_renderer_pixbuf_new ();
* /&ast; The following call causes the default cell area for combo boxes,
* &ast; a GtkCellAreaBox, to be instantiated
* &ast;/
* gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (b), cell, FALSE);
* ...
* }
*
* GtkWidget *
* my_combo_box_new (GtkCellArea *area)
* {
* /&ast; This call is going to cause a warning
* &ast; about area being ignored
* &ast;/
* return g_object_new (MY_TYPE_COMBO_BOX, "cell-area", area, NULL);
* }
* ]|
*
* If supporting alternative cell areas with your derived widget is
* not important, then this does not have to concern you. If you want
* to support alternative cell areas, you can do so by moving the
* problematic calls out of init() and into a constructor()
* for your class.
*/
#include "config.h"
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include "gtkcelllayout.h"
#include "gtkbuilderprivate.h"
#include "gtkintl.h"
#define warn_no_cell_area(func) \
g_critical ("%s: Called but no GtkCellArea is available yet", func)
typedef GtkCellLayoutIface GtkCellLayoutInterface;
G_DEFINE_INTERFACE (GtkCellLayout, gtk_cell_layout, G_TYPE_OBJECT);
static void gtk_cell_layout_default_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand);
static void gtk_cell_layout_default_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand);
static void gtk_cell_layout_default_clear (GtkCellLayout *cell_layout);
static void gtk_cell_layout_default_add_attribute (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column);
static void gtk_cell_layout_default_set_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy);
static void gtk_cell_layout_default_clear_attributes (GtkCellLayout *cell_layout,
GtkCellRenderer *cell);
static void gtk_cell_layout_default_reorder (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gint position);
static GList *gtk_cell_layout_default_get_cells (GtkCellLayout *cell_layout);
static void
gtk_cell_layout_default_init (GtkCellLayoutIface *iface)
{
iface->pack_start = gtk_cell_layout_default_pack_start;
iface->pack_end = gtk_cell_layout_default_pack_end;
iface->clear = gtk_cell_layout_default_clear;
iface->add_attribute = gtk_cell_layout_default_add_attribute;
iface->set_cell_data_func = gtk_cell_layout_default_set_cell_data_func;
iface->clear_attributes = gtk_cell_layout_default_clear_attributes;
iface->reorder = gtk_cell_layout_default_reorder;
iface->get_cells = gtk_cell_layout_default_get_cells;
}
/* Default implementation is to fall back on an underlying cell area */
static void
gtk_cell_layout_default_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand)
{
GtkCellLayoutIface *iface;
GtkCellArea *area;
iface = GTK_CELL_LAYOUT_GET_IFACE (cell_layout);
if (iface->get_area)
{
area = iface->get_area (cell_layout);
if (area)
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (area), cell, expand);
else
warn_no_cell_area ("GtkCellLayoutIface->pack_start()");
}
}
static void
gtk_cell_layout_default_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand)
{
GtkCellLayoutIface *iface;
GtkCellArea *area;
iface = GTK_CELL_LAYOUT_GET_IFACE (cell_layout);
if (iface->get_area)
{
area = iface->get_area (cell_layout);
if (area)
gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (area), cell, expand);
else
warn_no_cell_area ("GtkCellLayoutIface->pack_end()");
}
}
static void
gtk_cell_layout_default_clear (GtkCellLayout *cell_layout)
{
GtkCellLayoutIface *iface;
GtkCellArea *area;
iface = GTK_CELL_LAYOUT_GET_IFACE (cell_layout);
if (iface->get_area)
{
area = iface->get_area (cell_layout);
if (area)
gtk_cell_layout_clear (GTK_CELL_LAYOUT (area));
else
warn_no_cell_area ("GtkCellLayoutIface->clear()");
}
}
static void
gtk_cell_layout_default_add_attribute (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column)
{
GtkCellLayoutIface *iface;
GtkCellArea *area;
iface = GTK_CELL_LAYOUT_GET_IFACE (cell_layout);
if (iface->get_area)
{
area = iface->get_area (cell_layout);
if (area)
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (area), cell, attribute, column);
else
warn_no_cell_area ("GtkCellLayoutIface->add_attribute()");
}
}
static void
gtk_cell_layout_default_set_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy)
{
GtkCellLayoutIface *iface;
GtkCellArea *area;
iface = GTK_CELL_LAYOUT_GET_IFACE (cell_layout);
if (iface->get_area)
{
area = iface->get_area (cell_layout);
if (area)
_gtk_cell_area_set_cell_data_func_with_proxy (area, cell,
(GFunc)func, func_data, destroy,
cell_layout);
else
warn_no_cell_area ("GtkCellLayoutIface->set_cell_data_func()");
}
}
static void
gtk_cell_layout_default_clear_attributes (GtkCellLayout *cell_layout,
GtkCellRenderer *cell)
{
GtkCellLayoutIface *iface;
GtkCellArea *area;
iface = GTK_CELL_LAYOUT_GET_IFACE (cell_layout);
if (iface->get_area)
{
area = iface->get_area (cell_layout);
if (area)
gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (area), cell);
else
warn_no_cell_area ("GtkCellLayoutIface->clear_attributes()");
}
}
static void
gtk_cell_layout_default_reorder (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gint position)
{
GtkCellLayoutIface *iface;
GtkCellArea *area;
iface = GTK_CELL_LAYOUT_GET_IFACE (cell_layout);
if (iface->get_area)
{
area = iface->get_area (cell_layout);
if (area)
gtk_cell_layout_reorder (GTK_CELL_LAYOUT (area), cell, position);
else
warn_no_cell_area ("GtkCellLayoutIface->reorder()");
}
}
static GList *
gtk_cell_layout_default_get_cells (GtkCellLayout *cell_layout)
{
GtkCellLayoutIface *iface;
GtkCellArea *area;
iface = GTK_CELL_LAYOUT_GET_IFACE (cell_layout);
if (iface->get_area)
{
area = iface->get_area (cell_layout);
if (area)
return gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (area));
else
warn_no_cell_area ("GtkCellLayoutIface->get_cells()");
}
return NULL;
}
/**
* gtk_cell_layout_pack_start:
* @cell_layout: a #GtkCellLayout
* @cell: a #GtkCellRenderer
* @expand: %TRUE if @cell is to be given extra space allocated to @cell_layout
*
* Packs the @cell into the beginning of @cell_layout. If @expand is %FALSE,
* then the @cell is allocated no more space than it needs. Any unused space
* is divided evenly between cells for which @expand is %TRUE.
*
* Note that reusing the same cell renderer is not supported.
*
* Since: 2.4
*/
void
gtk_cell_layout_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand)
{
g_return_if_fail (GTK_IS_CELL_LAYOUT (cell_layout));
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
GTK_CELL_LAYOUT_GET_IFACE (cell_layout)->pack_start (cell_layout, cell, expand);
}
/**
* gtk_cell_layout_pack_end:
* @cell_layout: a #GtkCellLayout
* @cell: a #GtkCellRenderer
* @expand: %TRUE if @cell is to be given extra space allocated to @cell_layout
*
* Adds the @cell to the end of @cell_layout. If @expand is %FALSE, then the
* @cell is allocated no more space than it needs. Any unused space is
* divided evenly between cells for which @expand is %TRUE.
*
* Note that reusing the same cell renderer is not supported.
*
* Since: 2.4
*/
void
gtk_cell_layout_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand)
{
g_return_if_fail (GTK_IS_CELL_LAYOUT (cell_layout));
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
GTK_CELL_LAYOUT_GET_IFACE (cell_layout)->pack_end (cell_layout, cell, expand);
}
/**
* gtk_cell_layout_clear:
* @cell_layout: a #GtkCellLayout
*
* Unsets all the mappings on all renderers on @cell_layout and
* removes all renderers from @cell_layout.
*
* Since: 2.4
*/
void
gtk_cell_layout_clear (GtkCellLayout *cell_layout)
{
g_return_if_fail (GTK_IS_CELL_LAYOUT (cell_layout));
GTK_CELL_LAYOUT_GET_IFACE (cell_layout)->clear (cell_layout);
}
static void
gtk_cell_layout_set_attributesv (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
va_list args)
{
gchar *attribute;
gint column;
attribute = va_arg (args, gchar *);
gtk_cell_layout_clear_attributes (cell_layout, cell);
while (attribute != NULL)
{
column = va_arg (args, gint);
gtk_cell_layout_add_attribute (cell_layout, cell, attribute, column);
attribute = va_arg (args, gchar *);
}
}
/**
* gtk_cell_layout_set_attributes:
* @cell_layout: a #GtkCellLayout
* @cell: a #GtkCellRenderer
* @...: a %NULL-terminated list of attributes
*
* Sets the attributes in list as the attributes of @cell_layout.
*
* The attributes should be in attribute/column order, as in
* gtk_cell_layout_add_attribute(). All existing attributes are
* removed, and replaced with the new attributes.
*
* Since: 2.4
*/
void
gtk_cell_layout_set_attributes (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
...)
{
va_list args;
g_return_if_fail (GTK_IS_CELL_LAYOUT (cell_layout));
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
va_start (args, cell);
gtk_cell_layout_set_attributesv (cell_layout, cell, args);
va_end (args);
}
/**
* gtk_cell_layout_add_attribute:
* @cell_layout: a #GtkCellLayout
* @cell: a #GtkCellRenderer
* @attribute: an attribute on the renderer
* @column: the column position on the model to get the attribute from
*
* Adds an attribute mapping to the list in @cell_layout.
*
* The @column is the column of the model to get a value from, and the
* @attribute is the parameter on @cell to be set from the value. So for
* example if column 2 of the model contains strings, you could have the
* “text” attribute of a #GtkCellRendererText get its values from column 2.
*
* Since: 2.4
*/
void
gtk_cell_layout_add_attribute (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column)
{
g_return_if_fail (GTK_IS_CELL_LAYOUT (cell_layout));
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
g_return_if_fail (attribute != NULL);
g_return_if_fail (column >= 0);
GTK_CELL_LAYOUT_GET_IFACE (cell_layout)->add_attribute (cell_layout, cell, attribute, column);
}
/**
* gtk_cell_layout_set_cell_data_func:
* @cell_layout: a #GtkCellLayout
* @cell: a #GtkCellRenderer
* @func: (allow-none): the #GtkCellLayoutDataFunc to use, or %NULL
* @func_data: user data for @func
* @destroy: destroy notify for @func_data
*
* Sets the #GtkCellLayoutDataFunc to use for @cell_layout.
*
* This function is used instead of the standard attributes mapping
* for setting the column value, and should set the value of @cell_layout’s
* cell renderer(s) as appropriate.
*
* @func may be %NULL to remove a previously set function.
*
* Since: 2.4
*/
void
gtk_cell_layout_set_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_CELL_LAYOUT (cell_layout));
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
GTK_CELL_LAYOUT_GET_IFACE
(cell_layout)->set_cell_data_func (cell_layout, cell, func, func_data, destroy);
}
/**
* gtk_cell_layout_clear_attributes:
* @cell_layout: a #GtkCellLayout
* @cell: a #GtkCellRenderer to clear the attribute mapping on
*
* Clears all existing attributes previously set with
* gtk_cell_layout_set_attributes().
*
* Since: 2.4
*/
void
gtk_cell_layout_clear_attributes (GtkCellLayout *cell_layout,
GtkCellRenderer *cell)
{
g_return_if_fail (GTK_IS_CELL_LAYOUT (cell_layout));
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
GTK_CELL_LAYOUT_GET_IFACE (cell_layout)->clear_attributes (cell_layout, cell);
}
/**
* gtk_cell_layout_reorder:
* @cell_layout: a #GtkCellLayout
* @cell: a #GtkCellRenderer to reorder
* @position: new position to insert @cell at
*
* Re-inserts @cell at @position.
*
* Note that @cell has already to be packed into @cell_layout
* for this to function properly.
*
* Since: 2.4
*/
void
gtk_cell_layout_reorder (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gint position)
{
g_return_if_fail (GTK_IS_CELL_LAYOUT (cell_layout));
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
GTK_CELL_LAYOUT_GET_IFACE (cell_layout)->reorder (cell_layout, cell, position);
}
/**
* gtk_cell_layout_get_cells:
* @cell_layout: a #GtkCellLayout
*
* Returns the cell renderers which have been added to @cell_layout.
*
* Return value: (element-type GtkCellRenderer) (transfer container):
* a list of cell renderers. The list, but not the renderers has
* been newly allocated and should be freed with g_list_free()
* when no longer needed.
*
* Since: 2.12
*/
GList *
gtk_cell_layout_get_cells (GtkCellLayout *cell_layout)
{
g_return_val_if_fail (GTK_IS_CELL_LAYOUT (cell_layout), NULL);
return GTK_CELL_LAYOUT_GET_IFACE (cell_layout)->get_cells (cell_layout);
}
/**
* gtk_cell_layout_get_area:
* @cell_layout: a #GtkCellLayout
*
* Returns the underlying #GtkCellArea which might be @cell_layout
* if called on a #GtkCellArea or might be %NULL if no #GtkCellArea
* is used by @cell_layout.
*
* Return value: (transfer none): the cell area used by @cell_layout.
*
* Since: 3.0
*/
GtkCellArea *
gtk_cell_layout_get_area (GtkCellLayout *cell_layout)
{
GtkCellLayoutIface *iface;
g_return_val_if_fail (GTK_IS_CELL_LAYOUT (cell_layout), NULL);
iface = GTK_CELL_LAYOUT_GET_IFACE (cell_layout);
if (iface->get_area)
return iface->get_area (cell_layout);
return NULL;
}
/* Attribute parsing */
typedef struct {
GtkCellLayout *cell_layout;
GtkCellRenderer *renderer;
gchar *attr_name;
} AttributesSubParserData;
static void
attributes_start_element (GMarkupParseContext *context,
const gchar *element_name,
const gchar **names,
const gchar **values,
gpointer user_data,
GError **error)
{
AttributesSubParserData *parser_data = (AttributesSubParserData*)user_data;
guint i;
if (strcmp (element_name, "attribute") == 0)
{
for (i = 0; names[i]; i++)
if (strcmp (names[i], "name") == 0)
parser_data->attr_name = g_strdup (values[i]);
}
else if (strcmp (element_name, "attributes") == 0)
return;
else
g_warning ("Unsupported tag for GtkCellLayout: %s\n", element_name);
}
static void
attributes_text_element (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
AttributesSubParserData *parser_data = (AttributesSubParserData*)user_data;
glong l;
gchar *endptr;
gchar *string;
if (!parser_data->attr_name)
return;
string = g_strndup (text, text_len);
errno = 0;
l = g_ascii_strtoll (string, &endptr, 0);
if (errno || endptr == string)
{
g_set_error (error,
GTK_BUILDER_ERROR,
GTK_BUILDER_ERROR_INVALID_VALUE,
"Could not parse integer `%s'",
string);
g_free (string);
return;
}
g_free (string);
gtk_cell_layout_add_attribute (parser_data->cell_layout,
parser_data->renderer,
parser_data->attr_name, l);
g_free (parser_data->attr_name);
parser_data->attr_name = NULL;
}
static const GMarkupParser attributes_parser =
{
attributes_start_element,
NULL,
attributes_text_element,
};
/* Cell packing parsing */
static void
gtk_cell_layout_buildable_set_cell_property (GtkCellArea *area,
GtkBuilder *builder,
GtkCellRenderer *cell,
gchar *name,
const gchar *value)
{
GParamSpec *pspec;
GValue gvalue = G_VALUE_INIT;
GError *error = NULL;
pspec = gtk_cell_area_class_find_cell_property (GTK_CELL_AREA_GET_CLASS (area), name);
if (!pspec)
{
g_warning ("%s does not have a property called %s",
g_type_name (G_OBJECT_TYPE (area)), name);
return;
}
if (!gtk_builder_value_from_string (builder, pspec, value, &gvalue, &error))
{
g_warning ("Could not read property %s:%s with value %s of type %s: %s",
g_type_name (G_OBJECT_TYPE (area)),
name,
value,
g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
error->message);
g_error_free (error);
return;
}
gtk_cell_area_cell_set_property (area, cell, name, &gvalue);
g_value_unset (&gvalue);
}
typedef struct {
GtkBuilder *builder;
GtkCellLayout *cell_layout;
GtkCellRenderer *renderer;
GString *string;
gchar *cell_prop_name;
gchar *context;
gboolean translatable;
} CellPackingSubParserData;
static void
cell_packing_start_element (GMarkupParseContext *context,
const gchar *element_name,
const gchar **names,
const gchar **values,
gpointer user_data,
GError **error)
{
CellPackingSubParserData *parser_data = (CellPackingSubParserData*)user_data;
guint i;
if (strcmp (element_name, "property") == 0)
{
for (i = 0; names[i]; i++)
if (strcmp (names[i], "name") == 0)
parser_data->cell_prop_name = g_strdup (values[i]);
else if (strcmp (names[i], "translatable") == 0)
{
if (!_gtk_builder_boolean_from_string (values[i],
&parser_data->translatable,
error))
return;
}
else if (strcmp (names[i], "comments") == 0)
; /* for translators */
else if (strcmp (names[i], "context") == 0)
parser_data->context = g_strdup (values[i]);
else
g_warning ("Unsupported attribute for GtkCellLayout Cell "
"property: %s\n", names[i]);
}
else if (strcmp (element_name, "cell-packing") == 0)
return;
else
g_warning ("Unsupported tag for GtkCellLayout: %s\n", element_name);
}
static void
cell_packing_text_element (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
CellPackingSubParserData *parser_data = (CellPackingSubParserData*)user_data;
if (parser_data->cell_prop_name)
g_string_append_len (parser_data->string, text, text_len);
}
static void
cell_packing_end_element (GMarkupParseContext *context,
const gchar *element_name,
gpointer user_data,
GError **error)
{
CellPackingSubParserData *parser_data = (CellPackingSubParserData*)user_data;
GtkCellArea *area;
area = gtk_cell_layout_get_area (parser_data->cell_layout);
if (area)
{
/* translate the string */
if (parser_data->string->len && parser_data->translatable)
{
const gchar *translated;
const gchar* domain;
domain = gtk_builder_get_translation_domain (parser_data->builder);
translated = _gtk_builder_parser_translate (domain,
parser_data->context,
parser_data->string->str);
g_string_assign (parser_data->string, translated);
}
if (parser_data->cell_prop_name)
gtk_cell_layout_buildable_set_cell_property (area,
parser_data->builder,
parser_data->renderer,
parser_data->cell_prop_name,
parser_data->string->str);
}
else
g_warning ("%s does not have an internal GtkCellArea class and cannot apply child cell properties",
g_type_name (G_OBJECT_TYPE (parser_data->cell_layout)));
g_string_set_size (parser_data->string, 0);
g_free (parser_data->cell_prop_name);
g_free (parser_data->context);
parser_data->cell_prop_name = NULL;
parser_data->context = NULL;
parser_data->translatable = FALSE;
}
static const GMarkupParser cell_packing_parser =
{
cell_packing_start_element,
cell_packing_end_element,
cell_packing_text_element,
};
gboolean
_gtk_cell_layout_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data)
{
AttributesSubParserData *attr_data;
CellPackingSubParserData *packing_data;
if (!child)
return FALSE;
if (strcmp (tagname, "attributes") == 0)
{
attr_data = g_slice_new0 (AttributesSubParserData);
attr_data->cell_layout = GTK_CELL_LAYOUT (buildable);
attr_data->renderer = GTK_CELL_RENDERER (child);
attr_data->attr_name = NULL;
*parser = attributes_parser;
*data = attr_data;
return TRUE;
}
else if (strcmp (tagname, "cell-packing") == 0)
{
packing_data = g_slice_new0 (CellPackingSubParserData);
packing_data->string = g_string_new ("");
packing_data->builder = builder;
packing_data->cell_layout = GTK_CELL_LAYOUT (buildable);
packing_data->renderer = GTK_CELL_RENDERER (child);
*parser = cell_packing_parser;
*data = packing_data;
return TRUE;
}
return FALSE;
}
gboolean
_gtk_cell_layout_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data)
{
AttributesSubParserData *attr_data;
CellPackingSubParserData *packing_data;
if (strcmp (tagname, "attributes") == 0)
{
attr_data = (AttributesSubParserData*)data;
g_assert (!attr_data->attr_name);
g_slice_free (AttributesSubParserData, attr_data);
return TRUE;
}
else if (strcmp (tagname, "cell-packing") == 0)
{
packing_data = (CellPackingSubParserData *)data;
g_string_free (packing_data->string, TRUE);
g_slice_free (CellPackingSubParserData, packing_data);
return TRUE;
}
return FALSE;
}
void
_gtk_cell_layout_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type)
{
g_return_if_fail (GTK_IS_CELL_LAYOUT (buildable));
g_return_if_fail (GTK_IS_CELL_RENDERER (child));
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (buildable), GTK_CELL_RENDERER (child), FALSE);
}
Reference in New Issue View Git Blame Copy Permalink