gtk2/tests/testinput.c

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/* GTK - The GIMP Toolkit
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* 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"
#include <stdio.h>
#include "gtk/gtk.h"
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/* Backing pixmap for drawing area */
static GdkPixmap *pixmap = NULL;
/* Information about cursor */
static gint cursor_proximity = TRUE;
static gdouble cursor_x;
static gdouble cursor_y;
/* Unique ID of current device */
static GdkDevice *current_device;
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/* Erase the old cursor, and/or draw a new one, if necessary */
static void
update_cursor (GtkWidget *widget, gdouble x, gdouble y)
{
static gint cursor_present = 0;
gint state = !current_device->has_cursor && cursor_proximity;
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if (pixmap != NULL)
{
if (cursor_present && (cursor_present != state ||
x != cursor_x || y != cursor_y))
{
gdk_draw_drawable (widget->window,
widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
pixmap,
cursor_x - 5, cursor_y - 5,
cursor_x - 5, cursor_y - 5,
10, 10);
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}
cursor_present = state;
cursor_x = x;
cursor_y = y;
if (cursor_present)
{
gdk_draw_rectangle (widget->window,
widget->style->black_gc,
TRUE,
cursor_x - 5, cursor_y -5,
10, 10);
}
}
}
/* Create a new backing pixmap of the appropriate size */
static gint
configure_event (GtkWidget *widget, GdkEventConfigure *event)
{
if (pixmap)
g_object_unref (pixmap);
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pixmap = gdk_pixmap_new(widget->window,
widget->allocation.width,
widget->allocation.height,
-1);
gdk_draw_rectangle (pixmap,
widget->style->white_gc,
TRUE,
0, 0,
widget->allocation.width,
widget->allocation.height);
return TRUE;
}
/* Refill the screen from the backing pixmap */
static gint
expose_event (GtkWidget *widget, GdkEventExpose *event)
{
gdk_draw_drawable (widget->window,
widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
pixmap,
event->area.x, event->area.y,
event->area.x, event->area.y,
event->area.width, event->area.height);
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return FALSE;
}
/* Draw a rectangle on the screen, size depending on pressure,
and color on the type of device */
static void
draw_brush (GtkWidget *widget, GdkInputSource source,
gdouble x, gdouble y, gdouble pressure)
{
GdkGC *gc;
GdkRectangle update_rect;
switch (source)
{
case GDK_SOURCE_MOUSE:
gc = widget->style->dark_gc[GTK_WIDGET_STATE (widget)];
break;
case GDK_SOURCE_PEN:
gc = widget->style->black_gc;
break;
case GDK_SOURCE_ERASER:
gc = widget->style->white_gc;
break;
default:
gc = widget->style->light_gc[GTK_WIDGET_STATE (widget)];
}
update_rect.x = x - 10 * pressure;
update_rect.y = y - 10 * pressure;
update_rect.width = 20 * pressure;
update_rect.height = 20 * pressure;
gdk_draw_rectangle (pixmap, gc, TRUE,
update_rect.x, update_rect.y,
update_rect.width, update_rect.height);
gtk_widget_queue_draw_area (widget,
update_rect.x, update_rect.y,
update_rect.width, update_rect.height);
gdk_window_process_updates (widget->window, TRUE);
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}
static guint32 motion_time;
static void
print_axes (GdkDevice *device, gdouble *axes)
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{
int i;
if (axes)
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{
g_print ("%s ", device->name);
for (i=0; i<device->num_axes; i++)
g_print ("%g ", axes[i]);
g_print ("\n");
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}
}
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static gint
button_press_event (GtkWidget *widget, GdkEventButton *event)
{
current_device = event->device;
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cursor_proximity = TRUE;
if (event->button == 1 && pixmap != NULL)
{
gdouble pressure = 0.5;
print_axes (event->device, event->axes);
gdk_event_get_axis ((GdkEvent *)event, GDK_AXIS_PRESSURE, &pressure);
draw_brush (widget, event->device->source, event->x, event->y, pressure);
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motion_time = event->time;
}
update_cursor (widget, event->x, event->y);
return TRUE;
}
static gint
key_press_event (GtkWidget *widget, GdkEventKey *event)
{
if ((event->keyval >= 0x20) && (event->keyval <= 0xFF))
printf("I got a %c\n", event->keyval);
else
printf("I got some other key\n");
return TRUE;
}
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static gint
motion_notify_event (GtkWidget *widget, GdkEventMotion *event)
{
GdkTimeCoord **events;
int n_events;
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int i;
current_device = event->device;
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cursor_proximity = TRUE;
if (event->state & GDK_BUTTON1_MASK && pixmap != NULL)
{
if (gdk_device_get_history (event->device, event->window,
motion_time, event->time,
&events, &n_events))
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{
for (i=0; i<n_events; i++)
{
double x = 0, y = 0, pressure = 0.5;
gdk_device_get_axis (event->device, events[i]->axes, GDK_AXIS_X, &x);
gdk_device_get_axis (event->device, events[i]->axes, GDK_AXIS_Y, &y);
gdk_device_get_axis (event->device, events[i]->axes, GDK_AXIS_PRESSURE, &pressure);
draw_brush (widget, event->device->source, x, y, pressure);
print_axes (event->device, events[i]->axes);
}
gdk_device_free_history (events, n_events);
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}
else
{
double pressure = 0.5;
gdk_event_get_axis ((GdkEvent *)event, GDK_AXIS_PRESSURE, &pressure);
draw_brush (widget, event->device->source, event->x, event->y, pressure);
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}
motion_time = event->time;
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}
if (event->is_hint)
gdk_device_get_state (event->device, event->window, NULL, NULL);
print_axes (event->device, event->axes);
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update_cursor (widget, event->x, event->y);
return TRUE;
}
/* We track the next two events to know when we need to draw a
cursor */
static gint
proximity_out_event (GtkWidget *widget, GdkEventProximity *event)
{
cursor_proximity = FALSE;
update_cursor (widget, cursor_x, cursor_y);
return TRUE;
}
static gint
leave_notify_event (GtkWidget *widget, GdkEventCrossing *event)
{
cursor_proximity = FALSE;
update_cursor (widget, cursor_x, cursor_y);
return TRUE;
}
void
input_dialog_destroy (GtkWidget *w, gpointer data)
{
*((GtkWidget **)data) = NULL;
}
void
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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create_input_dialog (void)
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{
static GtkWidget *inputd = NULL;
if (!inputd)
{
inputd = gtk_input_dialog_new ();
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g_signal_connect (inputd, "destroy",
G_CALLBACK (input_dialog_destroy), &inputd);
g_signal_connect_swapped (GTK_INPUT_DIALOG (inputd)->close_button,
"clicked",
G_CALLBACK (gtk_widget_hide),
inputd);
gtk_widget_hide (GTK_INPUT_DIALOG (inputd)->save_button);
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gtk_widget_show (inputd);
}
else
{
if (!GTK_WIDGET_MAPPED(inputd))
gtk_widget_show(inputd);
else
gdk_window_raise(inputd->window);
}
}
void
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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quit (void)
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{
gtk_main_quit ();
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}
int
main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *drawing_area;
GtkWidget *vbox;
GtkWidget *button;
gtk_init (&argc, &argv);
Make gdkx.h the only installed header from gdk/x11. All structures in Fri Sep 7 11:51:44 2001 Owen Taylor <otaylor@redhat.com> Make gdkx.h the only installed header from gdk/x11. All structures in gdk/x11 are opaque. * gdk/x11/Makefile.am gdk/x11/gdkx.h gdk/x11/gdkprivate-x11.h: Don't install gdk{drawable,pixmap,window}-x11.h. * gdk/x11/{gdkcolormap-x11.c, gdkfont-x11.c, gdkx.h, gdkvisual-x11.c: Move GdkColormapPrivateX11, GdkFontPrivateX GdkImagePrivateX11, GdkVisualClass into C files. * gdk/gdkpixmap-x11.[ch]: Make gdk_pixmap_impl_get_type() static. * gdk/x11/{gdkcolor-x11.c, gdkcursor-x11.c, gdkdrawable-x11.c, gdkfont-x11.c, gdkgc-x11.c, gdkx.h, gdkimage-x11,gdkvisual-x11.c} Add public functions to replace previously exported direct structure access. gdk_x11_colormap_get_{xdisplay,xcolormap} gdk_x11_cursor_get_{xdisplay,xcursor}, gdk_x11_drawable_get_{xdisplay,xcursor,gdk_x11_visual_get_xvisual, gdk_x11_font_get_{xdisplay,xfont}, gdk_x11_image_get_{xdisplay,ximage}, gdk_x11_gc_get_{xdisplay,ximage} * gdk/gdkprivate.h gdk/gdkinternals.h: Move GdkColorInfo, GdkEventFilter, GdkClientFilter, GdkFontPrivate to gdkinternals. Fix a number of variables and functions that were exported "accidentally" from GDK. * gdk/**.[ch]: gdk => _gdk for gdk_visual_init, gdk_events_init, gdk_input_init, gdk_dnd_init, gdk_image_exit, gdk_input_exit, gdk_windowing_exit, gdk_event_func, gdk_event_data, gdk_event_notify, gdk_queued_events, gdk_queued_tail, gdk_event_new, gdk_events_queue, gdk_events_unqueue, gdk_event_queue_find_first, gdk_event_queue_remove_link, gdk_event_queue_append, gdk_event_button_generate, gdk_debug_flags, gdk_default_filters, gdk_parent_root. * gdk/x11/{gdkevents-x11.c, gdkglobals-x11.c, gdkimage-x11.c, gdkmain-x11.c, gdkprivate-x11.h, gdk/x11/gdkwindow-x11.c}: gdk => _gdk for gdk_event_mask_table, gkd_nevent_masks, gdk_wm_window_protocols, gdk_leader_window, gdk_xgrab_window, gdk_use_xshm, gdk_input_ignore_core. * gdk/x11/xsettings-common.h (xsettings_list_insert): Add #defines to namespace functions into the private _gdk_ namespace. * gdk/gdkwindow.[ch] gdk/x11/gdkx.h: Add gdk_get_default_root_window () to replace gdk_parent_root exported variable. Adjust and deprecate GDK_ROOT_PARENT(). * demos/{testpixbuf-drawable.c,testpixbuf-save.c}: Fix GDK_ROOT_PARENT usage, remove includes of port-specific headers. * gdk/{win32,x11,fb}/gdkinput*.[ch]: s/gdk/_gdk/ for _gdk_input_gxid_host, _gdk_input_gxid_port, _gdk_input_ignore_core, gdk_input_devices, _gdk_input_windows, gdk_init_input_core. * gdk/x11/{gdkevents-x11.,c gdkglobals-x11.c, gdkmain-x11.c} docs/Changes-2.0.txt: Remove gdk_wm_protocols, gdk_wm_delete_window functions, gdk_wm_take_focus, use gdk_atom_intern() instead. * gdk/linux-fb/{gdkselection-fb.c, gdkmain-fb.c, gdkprivatefb.h} gdk/win32/{gdkselection-win32.c, gdkmgdkwin32.h, gdkprivate-win32.h} gdk/x11/{gdkselection-x11.c gdkx.h, gtkprivate-x11.h} gtk/gtkselection.c Unexport gdk_selection_property, just use gdk_atom_intern ("GDK_SELECTION"). * gdk/x11/{gdkprivate-x11.h,gdkdrawable-x11h,gdkgc-x11.c,gdkx.h}: Unexport gdk_drawable_impl_x11_get_type, gdk_gc_x11_get_type, GDK_GC_X11 cast macros, GdkGCX11 structures, GdkCursorPrivate, GdkVisualprivate, gdk_x11_gc_flush. Make a number of public exports of variables into functions to increase encapsulation. * gdk/gdkinternals.h gdk/gdkinput.h gdk/gdkevents.h gdk/linux-fb/gdkmouse-fb.c: gdk_core_pointer => _gdk_core_pointer, move to gdkinternals.h. Add gdk_device_get_core_pointer (). * gdk/gdkprivate.h gdk/gdkpango.c gdk/gdkinternals.h docs/Changes-2.0.txt: Unexport gdk_parent_root, gdk_error_code, gdk_error_warnings. * gdk/x11/{gdkcolormap-x11.c, gdkmain-x11.c, gdkx.h} docs/Changes-2.0.txt: s/gdk_screen/_gdk_screen/, add gdk_x11_get_default_screen() s/gdk_root_window/_gdk_root_window/, add gdk_x11_get_default_root_xwindow() Add gdk_x11_get_default_xdisplay(). * gdk/gdk.h gdk/gdk.c linux-fb/gdkfb.h linux-fb/gdkglobals-fb.c win32/gdkwin32.h x11/gdkglobals-x11.c gdk/x11/gdkmain-x11.c gdk/x11/gdkx.h: gdk/gdk.def: Add gdk_get/set_program_class, Don't export gdk_progclass, move --class command line option and handling to common portion of GDK. Miscellaneous fixes: * gdk/x11/gdkwindow-x11.c (gdk_window_set_icon_list): Fix g_return_val_if_fail that should have been g_return_if_fail. * gdk/gdkinternals.h gdk/gdkprivate.h: Move gdk_synthesize_window_state() to the semi-public gdkprivate.h. * gtk/gtkdnd.c (_gtk_drag_source_handle_event): Remove uneeded X11 dependency. * gdk/linux-fb/gdkmain-fb.c gdk/win32/gdkmain-win32.c gdk/TODO: Remove unused gdk_key_repeat_disable/restore. * linux-fb/gdkglobals-fb.c win32/gdkglobals-win32.c x11/gdkglobals-x11.c x11/gdkprivate-x11.h gdk/gdk.def: Remove unused gdk_null_window_warnings variable. * gdk/Makefile.am (DIST_SUBDIRS) nanox/*: cvs remove nanox; it can be retrieved from the repository; it is too far from functional to be worth having people check out; it would be easier to start from scratch, I suspect. * gdk/x11/gdkpixmap-x11.c: Fix lvalue usage of GDK_PIXMAP_XID(). * gdk/x11/gdkkeys-x11.c gdk/gdkrgb.c gdk/gdkwindow.c gdk/x11/gdkpango-x11.c gdk/x11/gdkselection-x11.c: Fix some accidentally global variables and unused global variables. * gdk/x11/gdkkeys-x11.c gdk/gdkrgb.c gdk/gdkwindow.c gdk/x11/gdkpango-x11.c gdk/x11/gdkselection-x11.c: Fix some accidentally global variables and unused global variables. Add some space for future expansion to multihead. * gdk/gdkdrawable.h: Add four reserved function pointers for future expansion of GdkDrawableClass. * gtk/gtkwindow.h gtk/gtkinvisible.h: Add reserved pointer where we can put a GdkScreen * later.
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current_device = gdk_device_get_core_pointer ();
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_widget_set_name (window, "Test Input");
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
g_signal_connect (window, "destroy",
G_CALLBACK (quit), NULL);
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/* Create the drawing area */
drawing_area = gtk_drawing_area_new ();
gtk_widget_set_size_request (drawing_area, 200, 200);
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gtk_box_pack_start (GTK_BOX (vbox), drawing_area, TRUE, TRUE, 0);
gtk_widget_show (drawing_area);
/* Signals used to handle backing pixmap */
g_signal_connect (drawing_area, "expose_event",
G_CALLBACK (expose_event), NULL);
g_signal_connect (drawing_area, "configure_event",
G_CALLBACK (configure_event), NULL);
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/* Event signals */
g_signal_connect (drawing_area, "motion_notify_event",
G_CALLBACK (motion_notify_event), NULL);
g_signal_connect (drawing_area, "button_press_event",
G_CALLBACK (button_press_event), NULL);
g_signal_connect (drawing_area, "key_press_event",
G_CALLBACK (key_press_event), NULL);
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g_signal_connect (drawing_area, "leave_notify_event",
G_CALLBACK (leave_notify_event), NULL);
g_signal_connect (drawing_area, "proximity_out_event",
G_CALLBACK (proximity_out_event), NULL);
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gtk_widget_set_events (drawing_area, GDK_EXPOSURE_MASK
| GDK_LEAVE_NOTIFY_MASK
| GDK_BUTTON_PRESS_MASK
| GDK_KEY_PRESS_MASK
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| GDK_POINTER_MOTION_MASK
| GDK_POINTER_MOTION_HINT_MASK
| GDK_PROXIMITY_OUT_MASK);
/* The following call enables tracking and processing of extension
events for the drawing area */
gtk_widget_set_extension_events (drawing_area, GDK_EXTENSION_EVENTS_ALL);
Reference count the fonts used in the text widget. Mon Aug 24 18:37:15 1998 Owen Taylor <otaylor@redhat.com> * gtk/gtktext.c: Reference count the fonts used in the text widget. * gdk/gdk.h gdk/gdkcolor.c: Rename the color allocation freeing functions to be more consistent, and more convenient; leave the old names in for backwards compatibility. * gdk/gdkcolor.c gdk/gdkprivate.h: Reference count the allocations in pseudo-color colormaps to greatly reduce calls to XAllocColor. Keep a per-colormap hashtable to speed up finding if there is an already-allocated matching color. * gdk/gdkcolor.c: Don't just match read the system colormap when the colormap is created, but synchronize our copy with the system colormap periodically. * gdk/gdk.c gdk/gdktypes.h gtk/gtkentry.c gtk/gtktext.c: Change XIM constants names to match GDK conventions * gtk/testinput.c: Allow the drawing area to get the focus. * gtk/testgtk.c: Change around the Text test to demonstrates multiple fonts, use more colors. * gtk/gtkwidget.c: Improve gtk_widget_get_colormap()/visual() so they work after a widget is unrealized. * gtk/gtktext.[ch]: Remove the requirement that the text widget be realized before adding text (!) Allocate colors ourself, instead of requiring the caller allocate them. Allow changing styles to work properly by keeping track of the values for a certain property are default or set explicitely. * gtk/gtkmenu.h: Added some comments. * gtk/gtkentry.c: Changes to match XIM constants. * gtk/gdk.h gdk/gdkwindow.c: Add gdk_drawable_set_data(), for adding keyed data to drawables. (Uses g_dataset internally) * gdk/gdkpixmap.c: Keep track of the colors we allocate, when creating an XPM - store them as user data for the GdkPixmap, so we don't leak colors when we create pixmaps from XPM's. Allocate memory for color information in large blocks instead of as many little pieces.
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GTK_WIDGET_SET_FLAGS (drawing_area, GTK_CAN_FOCUS);
gtk_widget_grab_focus (drawing_area);
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/* .. And create some buttons */
button = gtk_button_new_with_label ("Input Dialog");
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (create_input_dialog), NULL);
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gtk_widget_show (button);
button = gtk_button_new_with_label ("Quit");
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
g_signal_connect_swapped (button, "clicked",
G_CALLBACK (gtk_widget_destroy),
window);
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gtk_widget_show (button);
gtk_widget_show (window);
gtk_main ();
return 0;
}