gtk2/gtk/gtkdrawingarea.c

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
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* 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
* Lesser General Public License for more details.
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*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
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*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <config.h>
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#include "gtkdrawingarea.h"
static void gtk_drawing_area_class_init (GtkDrawingAreaClass *klass);
static void gtk_drawing_area_init (GtkDrawingArea *darea);
static void gtk_drawing_area_realize (GtkWidget *widget);
static void gtk_drawing_area_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_drawing_area_send_configure (GtkDrawingArea *darea);
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GType
configure.in acheader.h gdk/gdkwindow.c Check for Shape extension both on Sun May 3 13:38:22 1998 Owen Taylor <otaylor@gtk.org> * configure.in acheader.h gdk/gdkwindow.c Check for Shape extension both on the client and server side. (And, more importantly, check for the shape extension so we may include -lXext even when compiling with --disable-xshm) Don't set override_redirect on all shaped windows. It isn't necessary. * gdk/gdkwindow.c: Set ->colormap to NULL for root and foreign windows. Use this to check if we need to get the colormap from X. Fri May 1 22:32:47 1998 Owen Taylor <otaylor@gtk.org> * gtk/gtkbutton.c (gtk_button_paint): Draw the areas between the default and the button always in GTK_STATE_NORMAL. * gtk/gtkrange.c (gtk_range_style_set): Added a style_set callback. Fri May 1 16:40:57 1998 Owen Taylor <otaylor@gtk.org> * gdk/gdkpixmap.c (gdk_pixmap_colormap_create_from_xpmp[_d]): Fix a buffer overflow on pixmaps that claim to have more than 31 characters per pixel. (gdk_pixmap_read_string): Don't wrap around strings longer than half of address space ;-) * gtk/gtk[vh]ruler.c gtk/gtkinputdialog.c: Expand some buffers that were used for printing integers. * */* (almost): Style: All int foo () { ... } changed to int foo (void) { ... } ^^^^^^^ This is why some many files changed Even where there were proper prototypes elsewhere. * gdk/gxid.c (handle_claim_device): Some extra checks. It isn't safe against being fed bad X id's, but at least it should be safe against deleting all your files.
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gtk_drawing_area_get_type (void)
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{
static GType drawing_area_type = 0;
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if (!drawing_area_type)
{
static const GTypeInfo drawing_area_info =
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{
sizeof (GtkDrawingAreaClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_drawing_area_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkDrawingArea),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_drawing_area_init,
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};
drawing_area_type =
g_type_register_static (GTK_TYPE_WIDGET, "GtkDrawingArea",
&drawing_area_info, 0);
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}
return drawing_area_type;
}
static void
gtk_drawing_area_class_init (GtkDrawingAreaClass *class)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
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widget_class->realize = gtk_drawing_area_realize;
widget_class->size_allocate = gtk_drawing_area_size_allocate;
}
static void
gtk_drawing_area_init (GtkDrawingArea *darea)
{
darea->draw_data = NULL;
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}
GtkWidget*
configure.in acheader.h gdk/gdkwindow.c Check for Shape extension both on Sun May 3 13:38:22 1998 Owen Taylor <otaylor@gtk.org> * configure.in acheader.h gdk/gdkwindow.c Check for Shape extension both on the client and server side. (And, more importantly, check for the shape extension so we may include -lXext even when compiling with --disable-xshm) Don't set override_redirect on all shaped windows. It isn't necessary. * gdk/gdkwindow.c: Set ->colormap to NULL for root and foreign windows. Use this to check if we need to get the colormap from X. Fri May 1 22:32:47 1998 Owen Taylor <otaylor@gtk.org> * gtk/gtkbutton.c (gtk_button_paint): Draw the areas between the default and the button always in GTK_STATE_NORMAL. * gtk/gtkrange.c (gtk_range_style_set): Added a style_set callback. Fri May 1 16:40:57 1998 Owen Taylor <otaylor@gtk.org> * gdk/gdkpixmap.c (gdk_pixmap_colormap_create_from_xpmp[_d]): Fix a buffer overflow on pixmaps that claim to have more than 31 characters per pixel. (gdk_pixmap_read_string): Don't wrap around strings longer than half of address space ;-) * gtk/gtk[vh]ruler.c gtk/gtkinputdialog.c: Expand some buffers that were used for printing integers. * */* (almost): Style: All int foo () { ... } changed to int foo (void) { ... } ^^^^^^^ This is why some many files changed Even where there were proper prototypes elsewhere. * gdk/gxid.c (handle_claim_device): Some extra checks. It isn't safe against being fed bad X id's, but at least it should be safe against deleting all your files.
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gtk_drawing_area_new (void)
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{
return g_object_new (GTK_TYPE_DRAWING_AREA, NULL);
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}
void
gtk_drawing_area_size (GtkDrawingArea *darea,
gint width,
gint height)
{
g_return_if_fail (GTK_IS_DRAWING_AREA (darea));
GTK_WIDGET (darea)->requisition.width = width;
GTK_WIDGET (darea)->requisition.height = height;
gtk_widget_queue_resize (GTK_WIDGET (darea));
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}
static void
gtk_drawing_area_realize (GtkWidget *widget)
{
GtkDrawingArea *darea;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (GTK_IS_DRAWING_AREA (widget));
darea = GTK_DRAWING_AREA (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
Try to figure out if this is Digital Unix and we need -std1 to get the Sat May 9 20:11:20 1998 Owen Taylor <otaylor@gtk.org> * configure.in (LIBS): Try to figure out if this is Digital Unix and we need -std1 to get the right prototypes. Sat May 9 20:08:12 1998 Owen Taylor <otaylor@gtk.org> * glib/gmem.c: Experimentally restore GMemChunk to its primeval state - where mem areas are freed incrementally instead of searching the tree every time a mem area is completely empty. Also, always keep one mem chunk around. (Reduced calls to malloc() a lot, but doesn't really improve performance significiantly) Fri May 8 21:31:50 1998 Owen Taylor <otaylor@gtk.org> * gtk/gtkwidget.c (gtk_widget_queue_draw): Free the draw-queue when we are done. (gtk_widget_queue_draw/_queu_resize): Always return FALSE and avoid having two idles at the same time. Fri May 8 21:04:00 1998 Owen Taylor <otaylor@gtk.org> * gtk/gtktext.c: Various fixes to make sure cache lines are freed if line_start_cache doesn't point to the beginning of the cache. Thu May 7 09:44:22 1998 Owen Taylor <otaylor@gtk.org> * style_set improvements for GtkText and GtkEntry Tue May 5 19:49:27 1998 Owen Taylor <otaylor@gtk.org> * gdk/gdkpixmap.c: Patches from Gordon Matzigkeit to speed things up and remove code duplication. Reintegrated buffer overflow patches, and added some extra paranoia. Tue May 5 17:04:14 1998 Owen Taylor <otaylor@gtk.org> * gdk/gdk.c (gdk_event_translate): A guint * was being passed where X expected a Keysym *, and keysyms are long's on Alpha Linux. This was causing segfaults in Xlib, apparently because of alignment. (Bug located by Juergen Haas <haas@forwiss.uni-passau.de>) Tue May 5 19:11:27 1998 Owen Taylor <otaylor@gtk.org> * gtk/gtkdrawingarea.c (gtk_drawing_area_realize): Always set GDK_EXPOSURE_MASK for DrawingAreas Tue May 5 14:32:37 1998 Owen Taylor <otaylor@gtk.org> * gtk/gtkwidget.[ch]: removed gtk_widge_propagate_default_style (superceded by RC file reparsing capabilities) * gtk/gtkwindow.c: Add handling for _GDK_READ_RFCILES client events. (Shouldn't be sent to the InputOnly leader, which it is now by gdk_event_send_clientmessage_toall * gtk/testgtk.c: Added extra button to rcfiles test to send out _GDK_READ_RCFILES events. Tue May 5 11:03:00 1998 Owen Taylor <otaylor@gtk.org> * gtk/gtkselection.c (gtk_selection_clear): Fixed reversed conditionals that caused segfault on some platforms. Tue May 5 00:44:47 1998 Owen Taylor <otaylor@gtk.org> * gtk/gtkcontainer.c (gtk_container_set_focus_[hv]adjustment): cast to GTK_OBJECT for gtk_object_ref.
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attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
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gdk_window_set_user_data (widget->window, darea);
widget->style = gtk_style_attach (widget->style, widget->window);
gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
gtk_drawing_area_send_configure (GTK_DRAWING_AREA (widget));
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}
static void
gtk_drawing_area_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
g_return_if_fail (GTK_IS_DRAWING_AREA (widget));
g_return_if_fail (allocation != NULL);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
gtk_drawing_area_send_configure (GTK_DRAWING_AREA (widget));
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}
}
static void
gtk_drawing_area_send_configure (GtkDrawingArea *darea)
{
GtkWidget *widget;
GdkEvent *event = gdk_event_new (GDK_CONFIGURE);
widget = GTK_WIDGET (darea);
event->configure.window = g_object_ref (widget->window);
event->configure.send_event = TRUE;
event->configure.x = widget->allocation.x;
event->configure.y = widget->allocation.y;
event->configure.width = widget->allocation.width;
event->configure.height = widget->allocation.height;
gtk_widget_event (widget, event);
gdk_event_free (event);
}