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/* -*- Mode: C; c-basic-offset: 4 -*-
* pygtk- Python bindings for the GTK toolkit.
* Copyright (C) 1998-2003 James Henstridge
*
* pygtkcellrenderer.c: stub class to help implement cell renderers.
*
* 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 2.1 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
* Lesser 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
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "pygtkcellrenderer.h"
#include <Python.h>
#include "pygtk-private.h"
/* define this to print out debug messages */
#undef DEBUG_CELL_RENDERER
#ifndef _
# define _(s) (s)
#endif
static void pygtk_generic_cell_renderer_class_init (PyGtkGenericCellRendererClass *klass);
static void pygtk_generic_cell_renderer_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height);
static void pygtk_generic_cell_renderer_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
GtkCellRendererState flags);
static gboolean pygtk_generic_cell_renderer_activate (GtkCellRenderer *cell,
GdkEvent *event,
GtkWidget *widget,
const gchar *path,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkCellRendererState flags);
static GtkCellEditable *pygtk_generic_cell_renderer_start_editing (GtkCellRenderer *cell,
GdkEvent *event,
GtkWidget *widget,
const gchar *path,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkCellRendererState flags);
GType
pygtk_generic_cell_renderer_get_type(void)
{
static GType object_type = 0;
if (!object_type) {
static const GTypeInfo object_info = {
sizeof(PyGtkGenericCellRendererClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) pygtk_generic_cell_renderer_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(PyGtkGenericCellRenderer),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
object_type = g_type_register_static(GTK_TYPE_CELL_RENDERER,
"PyGtkGenericCellRenderer",
&object_info, 0);
}
return object_type;
}
static void
pygtk_generic_cell_renderer_class_init(PyGtkGenericCellRendererClass *klass)
{
GtkCellRendererClass *cell_renderer_class = (GtkCellRendererClass*) klass;
cell_renderer_class->get_size = pygtk_generic_cell_renderer_get_size;
cell_renderer_class->render = pygtk_generic_cell_renderer_render;
cell_renderer_class->activate = pygtk_generic_cell_renderer_activate;
cell_renderer_class->start_editing = pygtk_generic_cell_renderer_start_editing;
}
#define METHOD_PREFIX "on_"
static void
pygtk_generic_cell_renderer_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height)
{
PyGILState_STATE state;
PyObject *self, *py_ret, *py_widget, *py_cell_area;
gint my_x, my_y, my_width, my_height;
g_return_if_fail(PYGTK_IS_GENERIC_CELL_RENDERER (cell));
state = pyg_gil_state_ensure();
self = pygobject_new((GObject *)cell);
#ifdef DEBUG_CELL_RENDERER
g_message ("get_size()");
#endif
py_widget = pygobject_new((GObject *)widget);
py_cell_area = pyg_boxed_new(GDK_TYPE_RECTANGLE, cell_area, TRUE, TRUE);
py_ret = PyObject_CallMethod(self, METHOD_PREFIX "get_size", "OO",
py_widget, py_cell_area);
if (!py_ret) {
PyErr_Print();
Py_DECREF(py_widget);
Py_DECREF(py_cell_area);
pyg_gil_state_release(state);
return;
}
Py_DECREF(py_widget);
Py_DECREF(py_cell_area);
if (!PyArg_ParseTuple(py_ret, "iiii",
&my_x, &my_y, &my_width, &my_height)) {
PyErr_Clear();
Py_DECREF(py_ret);
pyg_gil_state_release(state);
g_warning("could not parse return value of get_size() method. "
"Should be of form (x_offset, y_offset, width, height)");
return;
}
pyg_gil_state_release(state);
/* success */
if (x_offset)
*x_offset = my_x;
if (y_offset)
*y_offset = my_y;
if (width)
*width = my_width;
if (height)
*height = my_height;
}
static void
pygtk_generic_cell_renderer_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
GtkCellRendererState flags)
{
PyGILState_STATE state;
PyObject *self, *py_ret, *py_window, *py_widget;
PyObject *py_background_area, *py_cell_area, *py_expose_area;
g_return_if_fail(PYGTK_IS_GENERIC_CELL_RENDERER (cell));
state = pyg_gil_state_ensure();
self = pygobject_new((GObject *)cell);
#ifdef DEBUG_CELL_RENDERER
g_message ("render()");
#endif
py_window = pygobject_new((GObject *)window);
py_widget = pygobject_new((GObject *)widget);
py_background_area = pyg_boxed_new(GDK_TYPE_RECTANGLE, background_area, TRUE, TRUE);
py_cell_area = pyg_boxed_new(GDK_TYPE_RECTANGLE, cell_area, TRUE, TRUE);
py_expose_area = pyg_boxed_new(GDK_TYPE_RECTANGLE, expose_area, TRUE, TRUE);
py_ret = PyObject_CallMethod(self, METHOD_PREFIX "render", "OOOOOi",
py_window, py_widget, py_background_area,
py_cell_area, py_expose_area, flags);
if (!py_ret) {
PyErr_Print();
}
Py_DECREF(py_window);
Py_DECREF(py_widget);
Py_DECREF(py_background_area);
Py_DECREF(py_cell_area);
Py_DECREF(py_expose_area);
pyg_gil_state_release(state);
}
static gboolean
pygtk_generic_cell_renderer_activate (GtkCellRenderer *cell,
GdkEvent *event,
GtkWidget *widget,
const gchar *path,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkCellRendererState flags)
{
PyGILState_STATE state;
PyObject *self, *py_ret, *py_event, *py_widget;
PyObject *py_background_area, *py_cell_area;
gboolean ret = FALSE;
g_return_val_if_fail(PYGTK_IS_GENERIC_CELL_RENDERER (cell), FALSE);
state = pyg_gil_state_ensure();
self = pygobject_new((GObject *)cell);
#ifdef DEBUG_CELL_RENDERER
g_message ("activate()");
#endif
py_event = pyg_boxed_new(GDK_TYPE_EVENT, event, FALSE, FALSE);
py_widget = pygobject_new((GObject *)widget);
py_background_area = pyg_boxed_new(GDK_TYPE_RECTANGLE, background_area, TRUE, TRUE);
py_cell_area = pyg_boxed_new(GDK_TYPE_RECTANGLE, cell_area, TRUE, TRUE);
py_ret = PyObject_CallMethod(self, METHOD_PREFIX "activate", "OOzOOi",
py_event, py_widget, path, py_background_area,
py_cell_area, flags);
if (!py_ret) {
PyErr_Print();
goto out;
}
ret = PyObject_IsTrue(py_ret);
Py_DECREF(py_ret);
out:
pygtk_boxed_unref_shared(py_event);
Py_DECREF(py_widget);
Py_DECREF(py_background_area);
Py_DECREF(py_cell_area);
pyg_gil_state_release(state);
return ret;
}
static GtkCellEditable *
pygtk_generic_cell_renderer_start_editing (GtkCellRenderer *cell,
GdkEvent *event,
GtkWidget *widget,
const gchar *path,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkCellRendererState flags)
{
PyGILState_STATE state;
PyObject *self, *py_ret, *py_event, *py_widget;
PyObject *py_background_area, *py_cell_area;
GtkCellEditable *ret = NULL;
extern PyTypeObject PyGtkCellEditable_Type;
g_return_val_if_fail(PYGTK_IS_GENERIC_CELL_RENDERER (cell), NULL);
state = pyg_gil_state_ensure();
self = pygobject_new((GObject *)cell);
#ifdef DEBUG_CELL_RENDERER
g_message ("start_editing()");
#endif
py_event = pyg_boxed_new(GDK_TYPE_EVENT, event, FALSE, FALSE);
py_widget = pygobject_new((GObject *)widget);
py_background_area = pyg_boxed_new(GDK_TYPE_RECTANGLE, background_area, TRUE, TRUE);
py_cell_area = pyg_boxed_new(GDK_TYPE_RECTANGLE, cell_area, TRUE, TRUE);
py_ret = PyObject_CallMethod(self, METHOD_PREFIX "start_editing", "OOzOOi",
py_event, py_widget, path, py_background_area,
py_cell_area, flags);
if (!py_ret) {
PyErr_Print();
Py_DECREF(py_event);
Py_DECREF(py_widget);
Py_DECREF(py_background_area);
Py_DECREF(py_cell_area);
pyg_gil_state_release(state);
return NULL;
}
Py_DECREF(py_event);
Py_DECREF(py_widget);
Py_DECREF(py_background_area);
Py_DECREF(py_cell_area);
if (py_ret == Py_None) {
ret = NULL;
}
else if (pygobject_check(py_ret, &PyGtkCellEditable_Type)) {
ret = GTK_CELL_EDITABLE(g_object_ref(pygobject_get(py_ret)));
}
else {
g_warning("return of start_editing() was not a GtkCellEditable");
}
Py_DECREF(py_ret);
pyg_gil_state_release(state);
return ret;
}
GtkCellRenderer *
pygtk_generic_cell_renderer_new(void)
{
if (PyErr_Warn(PyExc_DeprecationWarning,
"subclass gtk.CellRenderer and override do_xxx methods") < 0)
return NULL;
return GTK_CELL_RENDERER(
g_object_new(PYGTK_TYPE_GENERIC_CELL_RENDERER, NULL));
}
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