gtk2/gtk/gtkcellrenderer.c

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/* gtkcellrenderer.c
* Copyright (C) 2000 Red Hat, Inc. Jonathan Blandford
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gtkcellrenderer.h"
Adapt to GtkTreeSelection changes 2001-01-01 Havoc Pennington <hp@redhat.com> * gtk/gtktreeview.c: Adapt to GtkTreeSelection changes * gtk/gtktreeselection.c (_gtk_tree_selection_set_tree_view): don't fill in tree_view->priv->selection, kind of an unexpected side effect * gtk/gtkcellrenderertext.c: Remove definition of _ and include gtkintl.h * gtk/gtkcellrenderer.c: Remove definition of _ and include gtkintl.h (gtk_cell_renderer_get_property): remove calls to g_value_init * gtk/gtkcellrendererpixbuf.c: Remove definition of _ and include gtkintl.h * gtk/gtkcellrenderertextpixbuf.c: Remove definition of _ macro and include gtkintl.h (gtk_cell_renderer_text_pixbuf_class_init): remove spaces from property names * gtk/gtktreeselection.c (_gtk_tree_selection_new): rename, return GtkTreeSelection (_gtk_tree_selection_new_from_with_view): rename, return GtkTreeSelection (_gtk_tree_selection_set_tree_view): rename with uscore (gtk_tree_selection_get_selected): fill in the "model" out param first, so it gets filled in even if we return at the top of the function (gtk_tree_selection_real_select_all): add a comment and an else{} to clarify this a bit (gtk_tree_selection_real_unselect_all): add the same else{} * gtk/gtktreeselection.h: Rename new, new_with_tree_view, and set_tree_view to have underscore prefixes, move them to the private header, fix return type of new_with_tree_view (struct _GtkTreeSelection): mark struct fields private * gtk/gtktreemodel.c (gtk_tree_model_get_flags): return GtkTreeModelFlags, not a guint (gtk_tree_path_prev): return gboolean not gint (gtk_tree_path_up): return gboolean not gint * gtk/gtktreemodel.h (struct _GtkTreeModelIface): make get_flags return GtkTreeModelFlags, not a guint * gtk/gtktreemodelsort.c (gtk_tree_model_sort_finalize): check that child model is non-null before unrefing it (g_value_int_compare_func): make this a qsort compare func, not a boolean predicate * gtk/gtktreemodelsort.h: rename gtk_tree_model_set_sort_column, (add -umn to the end), and mark it unimplemented (gtk_tree_model_sort_resort): remove, this wasn't implemented, and I don't see what it's for - doesn't the model always sort itself? (gtk_tree_model_sort_set_compare): this had the wrong signature * gtk/gtktreeviewcolumn.c (gtk_tree_view_column_set_attributes): Fix the docs to say that it destructively replaces existing attributes (previously said that it added attributes). (gtk_tree_view_column_set_visible): canonicalize bool before equality testing. Also, check for realization before hiding/showing the tree_column->window; if this window could exist before realization, then it's busted and needs fixing, we can't create GDK resources pre-realization. Also, remove superfluous queue_resize(), since set_size() does that for us. (gtk_tree_view_column_set_col_type): check realization before using tree_column->window * gtk/gtktreedatalist.c: fix filename in copyright notice
2001-01-01 19:01:54 +00:00
#include "gtkintl.h"
static void gtk_cell_renderer_init (GtkCellRenderer *cell);
static void gtk_cell_renderer_class_init (GtkCellRendererClass *class);
static void gtk_cell_renderer_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec);
static void gtk_cell_renderer_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec);
enum {
PROP_ZERO,
PROP_MODE,
PROP_VISIBLE,
PROP_XALIGN,
PROP_YALIGN,
PROP_XPAD,
PROP_YPAD,
PROP_WIDTH,
PROP_HEIGHT,
PROP_IS_EXPANDER,
PROP_IS_EXPANDED,
};
GtkType
gtk_cell_renderer_get_type (void)
{
static GtkType cell_type = 0;
if (!cell_type)
{
static const GTypeInfo cell_info =
{
sizeof (GtkCellRendererClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_cell_renderer_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkCellRenderer),
0,
(GInstanceInitFunc) gtk_cell_renderer_init,
};
urg, removed implementation of gtk_marshal_VOID__INT_INT_INT_INT. if Wed Oct 25 20:47:41 2000 Tim Janik <timj@gtk.org> * gtk/gdk-pixbuf-loader.c (gdk_pixbuf_loader_class_init): urg, removed implementation of gtk_marshal_VOID__INT_INT_INT_INT. if people do that, couldn't they at least give it a non-standard name? * gtk/gtktextlayout.c: arg! yet another implementation of gtk_marshal_VOID__INT_INT_INT_INT(), is this a conspiracy? * gtk/gtktextbuffer.c: gotcha! captured a vagabonding gtk_marshal_VOID__INT_POINTER_INT() implementation, braught it back home. now i know this _is_ a conspiracy. * gtk/gtkwidget.c (gtk_widget_class_init): marshaller fixups for ::state-changed. * gtk/gtkaccelgroup.c (gtk_accel_group_create_remove): (gtk_accel_group_create_add): marshaller signature fixups. * gtk/gtklistitem.c (gtk_list_item_class_init): signal creation fixups, pass in GTK_TYPE_SCROLL_TYPE instead of GTK_TYPE_ENUM. * gtk/gtkobject.[hc]: removed GTK_CONNECTED flag, it's not valid anymore. Tue Oct 24 23:59:21 2000 Tim Janik <timj@gtk.org> * docs/reference/Makefile.am: disabled SUBDIRS for the moment, since due to the signal system changes, it wouldn't build currently. to be fixed soon. * docs/Changes-2.0.txt: GtkSignal/GSignal updates. * gtk/gtkwidget.c: ::direction_changed takes an enum as argument, so it needs gtk_marshal_VOID__ENUM() instead of gtk_marshal_NONE__UINT(). * gdk/gdk*.c: adapted type registration functions. * gtk/gtkbindings.c: * gtk/gtkaccelgroup.c: operate on GSignalQuery, GtkSignalQuery is gone. * gtk/gtkenums.h: define GtkSignalRunType in terms of GSignalType. * gtk/gtkobject.c: (gtk_object_destroy): (gtk_object_shutdown): fixed recursion guards. basically we have to catch the case where any of GObject.shutdown() or gtk_object_destroy() is called during ::destroy, and avoid recursion there. * gtk/gtktypeutils.c: * gtk/maketypes.awk: awk-script hackup to provide gtk_type_init() with boxed_copy/boxed_free. this needs a more general solution based on a publically installed code-generator utility. * gtk/gtktypeutils.[hc]: compat aliased GTK_TYPE_BOXED to G_TYPE_BOXED, glib's gobject has support for that now. define GtkSignalMarshaller in terms of GSignalCMarshaller. Mon Oct 23 09:36:42 2000 Tim Janik <timj@gtk.org> * gtk/gtksignal.[hc]: * gtk/gtkmarshal.[hc]: * gtk/Makefile.am: generate marshallers with glib-genmarshal and don't compile gtkmarshal.c on its own anymore, just include it in gtksignal.c. removed #include <gtkmarshal.h>s all over the place, gtksignal.h takes care of that. * *.c: marshaller name fixups. * gtk/gtkmarshal.list: added a comment briefing the format. Sun Oct 22 23:14:39 2000 Tim Janik <timj@gtk.org> * gtk/gtksignal.[hc]: nuked old implementation. we mostly have compatibility macros here now. more specifically, most of the API is preserved (yes, _most_, nonwithstanding the following exceptions listed, the API is stil lHUGE ;) things that got removed completely: GtkSignalQuery, gtk_signal_query(), gtk_signal_n_emissions(), gtk_signal_n_emissions_by_name(), gtk_signal_handlers_destroy(), gtk_signal_set_funcs(), gtk_signal_handler_pending_by_id(), gtk_signal_add_emission_hook(), gtk_signal_add_emission_hook_full(), gtk_signal_remove_emission_hook(). non-functional functions variants: gtk_signal_add_emission_hook(), gtk_signal_remove_emission_hook(). the GtkCallbackMarshal argument to gtk_signal_connect_full() is not supported anymore. (gtk_signal_compat_matched): new internal function to aid implementation of the compatibility macros, it provides functionality to block/unblock/disconnect handlers based on func/data. * gtk/gtkenums.h: define GtkSignalRunType in terms of GSignalType, * *.c: adaptions to new type registration API signatures. Fri Oct 20 15:26:33 2000 Tim Janik <timj@gtk.org> * gtk/gtktypeutils.[hc]: removed G_TYPE_GTK_POINTER cludge.
2000-10-25 22:34:14 +00:00
cell_type = g_type_register_static (GTK_TYPE_OBJECT, "GtkCellRenderer", &cell_info, 0);
}
return cell_type;
}
static void
gtk_cell_renderer_init (GtkCellRenderer *cell)
{
cell->mode = GTK_CELL_RENDERER_MODE_INERT;
cell->visible = TRUE;
cell->width = -1;
cell->height = -1;
cell->xalign = 0.5;
cell->yalign = 0.5;
cell->xpad = 0;
cell->ypad = 0;
}
static void
gtk_cell_renderer_class_init (GtkCellRendererClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->get_property = gtk_cell_renderer_get_property;
object_class->set_property = gtk_cell_renderer_set_property;
class->render = NULL;
class->get_size = NULL;
g_object_class_install_property (object_class,
PROP_MODE,
g_param_spec_enum ("mode",
_("mode"),
_("Editable mode of the CellRenderer"),
GTK_TYPE_CELL_RENDERER_MODE,
GTK_CELL_RENDERER_MODE_INERT,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_VISIBLE,
g_param_spec_boolean ("visible",
_("visible"),
_("Display the cell"),
TRUE,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_XALIGN,
g_param_spec_float ("xalign",
_("xalign"),
_("The x-align."),
0.0,
1.0,
0.0,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_YALIGN,
g_param_spec_float ("yalign",
_("yalign"),
_("The y-align."),
0.0,
1.0,
0.5,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_XPAD,
g_param_spec_uint ("xpad",
_("xpad"),
_("The xpad."),
0,
100,
2,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_YPAD,
g_param_spec_uint ("ypad",
_("ypad"),
_("The ypad."),
0,
100,
2,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_WIDTH,
g_param_spec_int ("width",
_("width"),
_("The fixed width."),
-1,
100,
-1,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_HEIGHT,
g_param_spec_int ("height",
_("height"),
_("The fixed height."),
-1,
100,
-1,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_IS_EXPANDER,
g_param_spec_boolean ("is_expander",
_("Is Expander"),
_("Row has children."),
FALSE,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_IS_EXPANDED,
g_param_spec_boolean ("is_expanded",
_("Is Expanded"),
_("Row is an expander row, and is expanded"),
FALSE,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
}
static void
gtk_cell_renderer_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
GtkCellRenderer *cell = GTK_CELL_RENDERER (object);
switch (param_id)
{
case PROP_MODE:
g_value_set_enum (value, cell->mode);
break;
case PROP_VISIBLE:
g_value_set_boolean (value, cell->visible);
break;
case PROP_XALIGN:
g_value_set_float (value, cell->xalign);
break;
case PROP_YALIGN:
g_value_set_float (value, cell->yalign);
break;
case PROP_XPAD:
g_value_set_uint (value, cell->xpad);
break;
case PROP_YPAD:
g_value_set_uint (value, cell->ypad);
break;
case PROP_WIDTH:
g_value_set_int (value, cell->width);
break;
case PROP_HEIGHT:
g_value_set_int (value, cell->height);
break;
case PROP_IS_EXPANDER:
g_value_set_int (value, cell->is_expander);
break;
case PROP_IS_EXPANDED:
g_value_set_int (value, cell->is_expanded);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
static void
gtk_cell_renderer_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
GtkCellRenderer *cell = GTK_CELL_RENDERER (object);
switch (param_id)
{
case PROP_MODE:
cell->mode = g_value_get_enum (value);
break;
case PROP_VISIBLE:
cell->visible = g_value_get_boolean (value);
break;
case PROP_XALIGN:
cell->xalign = g_value_get_float (value);
break;
case PROP_YALIGN:
cell->yalign = g_value_get_float (value);
break;
case PROP_XPAD:
cell->xpad = g_value_get_uint (value);
break;
case PROP_YPAD:
cell->ypad = g_value_get_uint (value);
break;
case PROP_WIDTH:
cell->width = g_value_get_int (value);
break;
case PROP_HEIGHT:
cell->height = g_value_get_int (value);
break;
case PROP_IS_EXPANDER:
cell->is_expander = g_value_get_boolean (value);
break;
case PROP_IS_EXPANDED:
cell->is_expanded = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
/**
* gtk_cell_renderer_get_size:
* @cell: a #GtkCellRenderer
* @widget: the widget the renderer is rendering to
* @cell_area: The area a cell will be allocated, or %NULL
* @x_offset: location to return x offset of cell relative to @cell_area, or %NULL
* @y_offset: location to return y offset of cell relative to @cell_area, or %NULL
* @width: location to return width needed to render a cell, or %NULL
* @height: location to return height needed to render a cell, or %NULL
*
* Obtains the width and height needed to render the cell. Used by view widgets
* to determine the appropriate size for the cell_area passed to
* gtk_cell_renderer_render(). If @cell_area is not %NULL, fills in the x and y
* offsets (if set) of the cell relative to this location. Please note that the
* values set in @width and @height, as well as those in @x_offset and @y_offset
* are inclusive of the xpad and ypad properties.
**/
void
gtk_cell_renderer_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height)
{
gint *real_width = width;
gint *real_height = height;
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
g_return_if_fail (GTK_CELL_RENDERER_GET_CLASS (cell)->get_size != NULL);
if (width && cell->width != -1)
{
real_width = NULL;
*width = cell->width;
}
if (height && cell->height != -1)
{
real_height = NULL;
*height = cell->height;
}
GTK_CELL_RENDERER_GET_CLASS (cell)->get_size (cell, widget, cell_area, x_offset, y_offset, real_width, real_height);
}
adapt to handle PangoColor 2001-01-26 Havoc Pennington <hp@redhat.com> * gtk/gtktextlayout.c (convert_color): adapt to handle PangoColor * gtk/gtktreeview.c (gtk_tree_view_widget_to_tree_coords): fix to not offset by TREE_VIEW_HEADER_HEIGHT (gtk_tree_view_tree_to_widget_coords): fix to not offset by TREE_VIEW_HEADER_HEIGHT * configure.in (included_loaders): for me, --with-included-loaders generates the error "the specified loader yes does not exist", i.e. the arg defaults to "yes", so change test for value "" to test for value "yes", and include all loaders in that case. * gtk/gtkrbtree.c (_gtk_rbtree_get_depth): new function * gtk/gtktreeview.c (gtk_tree_view_get_cell_rect): fix to properly handle TREE_VIEW_VERTICAL_SEPARATOR (gtk_tree_view_bin_expose): fix to consider the row offset as pointing halfway into vertical separator. (gtk_tree_view_draw_node_focus_rect): ditto * gtk/gtkdebug.h, gtk/gtkmain.c (gtk_init_check): Add --gtk-debug=updates, which causes gdk_window_set_debug_updates (TRUE) to be called. * gdk/gdkwindow.c (gdk_window_set_debug_updates): Allow enabling a debug mode where the invalid region is colored in on invalidate, so you can see the flicker and know whether your redraw code is doing a good job. * gtk/gtktreeview.c (gtk_tree_view_queue_draw_node): Work in tree window coordinates (clip rect is in tree window coords) * gtk/Makefile.am: add gtktreednd.[hc] * gtk/gtkliststore.c: implement gtktreednd interfaces. * gtk/gtktreednd.c, gtk/gtktreednd.h: New interface to support drag-and-drop data operations on a model (so we can set up tree drag-and-drop automatically) * gtk/testgtk.c: Add a window to change sensitivity in the GtkLabel test; add a way to change the entry frame in GtkEntry test * gtk/gtkentry.c (gtk_entry_set_has_frame): (gtk_entry_get_has_frame): new functions to remove the frame around an entry (gtk_entry_size_request): shrink requisition if no frame (gtk_entry_draw_focus): don't draw frame if no frame * gtk/gtkstyle.c (gtk_default_draw_check): draw custom look for checks inside a cell renderer (gtk_default_draw_option): ditto for options * gtk/gtktreeviewcolumn.c (update_button_contents): add/remove children from the alignment, not the button (gtk_tree_view_column_init): ref/sink the column, to emulate GObject refcounting. * gtk/gtkcellrenderer.c (gtk_cell_renderer_init): ref/sink * gtk/gtkcellrenderertoggle.c (gtk_cell_renderer_toggle_render): Use theme functions to draw the toggles * gdk/gdkpango.c (gdk_pango_get_gc): use GdkRGB to alloc colors * gdk/gdkpango.h, gdk/gdkpango.c: Add GdkPangoAttrStipple and GdkPangoAttrEmbossed to use in rendering insensitive text * gdk/gdkpango.c (gdk_draw_layout_line): render new properties * gtk/gtkstyle.c (gtk_default_draw_layout): handle sensitivity using new GDK features
2001-01-26 21:12:05 +00:00
/**
* gtk_cell_renderer_render:
* @cell: a #GtkCellRenderer
* @window: a #GdkDrawable to draw to
* @widget: the widget owning @window
* @background_area: entire cell area (including tree expanders and maybe padding on the sides)
* @cell_area: area normally rendered by a cell renderer
* @expose_area: area that actually needs updating
* @flags: flags that affect rendering
*
* Invokes the virtual render function of the #GtkCellRenderer. The three
* passed-in rectangles are areas of @window. Most renderers will draw within
* @cell_area; the xalign, yalign, xpad, and ypad fields of the #GtkCellRenderer
* should be honored with respect to @cell_area. @background_area includes the
* blank space around the cell, and also the area containing the tree expander;
* so the @background_area rectangles for all cells tile to cover the entire
* @window. @expose_area is a clip rectangle.
*
adapt to handle PangoColor 2001-01-26 Havoc Pennington <hp@redhat.com> * gtk/gtktextlayout.c (convert_color): adapt to handle PangoColor * gtk/gtktreeview.c (gtk_tree_view_widget_to_tree_coords): fix to not offset by TREE_VIEW_HEADER_HEIGHT (gtk_tree_view_tree_to_widget_coords): fix to not offset by TREE_VIEW_HEADER_HEIGHT * configure.in (included_loaders): for me, --with-included-loaders generates the error "the specified loader yes does not exist", i.e. the arg defaults to "yes", so change test for value "" to test for value "yes", and include all loaders in that case. * gtk/gtkrbtree.c (_gtk_rbtree_get_depth): new function * gtk/gtktreeview.c (gtk_tree_view_get_cell_rect): fix to properly handle TREE_VIEW_VERTICAL_SEPARATOR (gtk_tree_view_bin_expose): fix to consider the row offset as pointing halfway into vertical separator. (gtk_tree_view_draw_node_focus_rect): ditto * gtk/gtkdebug.h, gtk/gtkmain.c (gtk_init_check): Add --gtk-debug=updates, which causes gdk_window_set_debug_updates (TRUE) to be called. * gdk/gdkwindow.c (gdk_window_set_debug_updates): Allow enabling a debug mode where the invalid region is colored in on invalidate, so you can see the flicker and know whether your redraw code is doing a good job. * gtk/gtktreeview.c (gtk_tree_view_queue_draw_node): Work in tree window coordinates (clip rect is in tree window coords) * gtk/Makefile.am: add gtktreednd.[hc] * gtk/gtkliststore.c: implement gtktreednd interfaces. * gtk/gtktreednd.c, gtk/gtktreednd.h: New interface to support drag-and-drop data operations on a model (so we can set up tree drag-and-drop automatically) * gtk/testgtk.c: Add a window to change sensitivity in the GtkLabel test; add a way to change the entry frame in GtkEntry test * gtk/gtkentry.c (gtk_entry_set_has_frame): (gtk_entry_get_has_frame): new functions to remove the frame around an entry (gtk_entry_size_request): shrink requisition if no frame (gtk_entry_draw_focus): don't draw frame if no frame * gtk/gtkstyle.c (gtk_default_draw_check): draw custom look for checks inside a cell renderer (gtk_default_draw_option): ditto for options * gtk/gtktreeviewcolumn.c (update_button_contents): add/remove children from the alignment, not the button (gtk_tree_view_column_init): ref/sink the column, to emulate GObject refcounting. * gtk/gtkcellrenderer.c (gtk_cell_renderer_init): ref/sink * gtk/gtkcellrenderertoggle.c (gtk_cell_renderer_toggle_render): Use theme functions to draw the toggles * gdk/gdkpango.c (gdk_pango_get_gc): use GdkRGB to alloc colors * gdk/gdkpango.h, gdk/gdkpango.c: Add GdkPangoAttrStipple and GdkPangoAttrEmbossed to use in rendering insensitive text * gdk/gdkpango.c (gdk_draw_layout_line): render new properties * gtk/gtkstyle.c (gtk_default_draw_layout): handle sensitivity using new GDK features
2001-01-26 21:12:05 +00:00
**/
void
gtk_cell_renderer_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
GtkCellRendererState flags)
{
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
g_return_if_fail (GTK_CELL_RENDERER_GET_CLASS (cell)->render != NULL);
GTK_CELL_RENDERER_GET_CLASS (cell)->render (cell,
window,
widget,
background_area,
cell_area,
expose_area,
flags);
}
/**
* gtk_cell_renderer_activate:
* @cell: a #GtkCellRenderer
* @event: a #GdkEvent
* @widget: widget that received the event
* @path: widget-dependent string representation of the event location; e.g. for #GtkTreeView, a string representation of #GtkTreePath
* @background_area: background area as passed to @gtk_cell_renderer_render
* @cell_area: cell area as passed to @gtk_cell_renderer_render
* @flags: render flags
*
* Passes an activate event to the cell renderer for possible processing. Some
* cell renderers may use events; for example, #GtkCellRendererToggle toggles
* when it gets a mouse click.
*
* Return value: %TRUE if the event was consumed/handled
**/
gboolean
gtk_cell_renderer_activate (GtkCellRenderer *cell,
GdkEvent *event,
GtkWidget *widget,
const gchar *path,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkCellRendererState flags)
{
g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell), FALSE);
if (cell->mode != GTK_CELL_RENDERER_MODE_ACTIVATABLE)
return FALSE;
if (GTK_CELL_RENDERER_GET_CLASS (cell)->activate == NULL)
return FALSE;
return GTK_CELL_RENDERER_GET_CLASS (cell)->activate (cell,
event,
widget,
path,
background_area,
cell_area,
flags);
}
/**
* gtk_cell_renderer_start_editing:
* @cell: a #GtkCellRenderer
* @event: a #GdkEvent
* @widget: widget that received the event
* @path: widget-dependent string representation of the event location; e.g. for #GtkTreeView, a string representation of #GtkTreePath
* @background_area: background area as passed to @gtk_cell_renderer_render
* @cell_area: cell area as passed to @gtk_cell_renderer_render
* @flags: render flags
*
* Passes an activate event to the cell renderer for possible processing.
*
* Return value: A new #GtkCellEditable, or %NULL
**/
GtkCellEditable *
gtk_cell_renderer_start_editing (GtkCellRenderer *cell,
GdkEvent *event,
GtkWidget *widget,
const gchar *path,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkCellRendererState flags)
{
g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell), NULL);
if (cell->mode != GTK_CELL_RENDERER_MODE_EDITABLE)
return NULL;
if (GTK_CELL_RENDERER_GET_CLASS (cell)->start_editing == NULL)
return NULL;
return GTK_CELL_RENDERER_GET_CLASS (cell)->start_editing (cell,
event,
widget,
path,
background_area,
cell_area,
flags);
}
/**
* gtk_cell_renderer_set_fixed_size:
* @cell: A #GtkCellRenderer
* @width: the width of the cell renderer, or -1
* @height: the height of the cell renderer, or -1
*
* Sets the renderer size to be explicit, independent of the properties set.
**/
void
gtk_cell_renderer_set_fixed_size (GtkCellRenderer *cell,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
g_return_if_fail (width >= -1 && height >= -1);
if ((width != cell->width) || (height != cell->height))
{
g_object_freeze_notify (G_OBJECT (cell));
if (width != cell->width)
{
cell->width = width;
g_object_notify (G_OBJECT (cell), "width");
}
if (height != cell->height)
{
cell->height = height;
g_object_notify (G_OBJECT (cell), "height");
}
g_object_thaw_notify (G_OBJECT (cell));
}
}
/**
* gtk_cell_renderer_get_fixed_size:
* @cell: A #GtkCellRenderer
* @width: location to fill in with the fixed width of the widget, or %NULL
* @height: location to fill in with the fixed height of the widget, or %NULL
*
* Fills in @width and @height with the appropriate size of @cell.
**/
void
gtk_cell_renderer_get_fixed_size (GtkCellRenderer *cell,
gint *width,
gint *height)
{
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
if (width)
(* width) = cell->width;
if (height)
(* height) = cell->height;
}