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gimp/app/display/gimpdisplayshell-callbacks.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdlib.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "display-types.h"
#include "tools/tools-types.h"
#include "config/gimpdisplayconfig.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpimage-guides.h"
#include "core/gimpimage-qmask.h"
#include "core/gimplayer.h"
#include "core/gimptoolinfo.h"
#include "tools/gimpmovetool.h"
#include "tools/gimptoolcontrol.h"
#include "tools/tool_manager.h"
#include "widgets/gimpcursor.h"
#include "widgets/gimpdevices.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimpitemfactory.h"
#include "gimpdisplay.h"
#include "gimpdisplayshell.h"
#include "gimpdisplayshell-appearance.h"
#include "gimpdisplayshell-callbacks.h"
#include "gimpdisplayshell-cursor.h"
#include "gimpdisplayshell-layer-select.h"
#include "gimpdisplayshell-render.h"
#include "gimpdisplayshell-scale.h"
#include "gimpdisplayshell-scroll.h"
#include "gimpdisplayshell-selection.h"
#include "gimpdisplayshell-title.h"
#include "gimpdisplayshell-transform.h"
#include "gimpnavigationview.h"
#include "gimpstatusbar.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_display_shell_vscrollbar_update (GtkAdjustment *adjustment,
GimpDisplayShell *shell);
static void gimp_display_shell_hscrollbar_update (GtkAdjustment *adjustment,
GimpDisplayShell *shell);
static gboolean gimp_display_shell_get_event_coords (GimpDisplayShell *shell,
GdkEvent *event,
GdkDevice *device,
GimpCoords *coords);
static void gimp_display_shell_get_device_coords (GimpDisplayShell *shell,
GdkDevice *device,
GimpCoords *coords);
static gboolean gimp_display_shell_get_event_state (GimpDisplayShell *shell,
GdkEvent *event,
GdkDevice *device,
GdkModifierType *state);
static void gimp_display_shell_get_device_state (GimpDisplayShell *shell,
GdkDevice *device,
GdkModifierType *state);
static GdkModifierType
gimp_display_shell_key_to_state (gint key);
static void gimp_display_shell_update_tool_modifiers (GimpDisplayShell *shell,
GdkModifierType old_state,
GdkModifierType current_state);
static void gimp_display_shell_origin_menu_position (GtkMenu *menu,
gint *x,
gint *y,
gpointer data);
GdkEvent * gimp_display_shell_compress_motion (GimpDisplayShell *shell);
/* public functions */
gboolean
gimp_display_shell_events (GtkWidget *widget,
GdkEvent *event,
GimpDisplayShell *shell)
{
Gimp *gimp = shell->gdisp->gimage->gimp;
gboolean set_display = FALSE;
GdkEventKey *kevent;
switch (event->type)
{
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
if (gimp->busy)
return TRUE;
kevent = (GdkEventKey *) event;
/* do not process any key events while BUTTON1 is down. We do this
* so tools keep the modifier state they were in when BUTTON1 was
* pressed and to prevent accelerators from being invoked.
*/
if (kevent->state & GDK_BUTTON1_MASK)
{
if (event->type == GDK_KEY_PRESS)
{
if (kevent->keyval == GDK_space && shell->space_release_pending)
{
shell->space_pressed = TRUE;
shell->space_release_pending = FALSE;
}
}
else
{
if (kevent->keyval == GDK_space && shell->space_pressed)
{
shell->space_pressed = FALSE;
shell->space_release_pending = TRUE;
}
}
return TRUE;
}
switch (kevent->keyval)
{
case GDK_Left: case GDK_Right:
case GDK_Up: case GDK_Down:
case GDK_space:
case GDK_Tab:
case GDK_Alt_L: case GDK_Alt_R:
case GDK_Shift_L: case GDK_Shift_R:
case GDK_Control_L: case GDK_Control_R:
break;
case GDK_Escape:
gimp_display_shell_set_fullscreen (shell, FALSE);
break;
default:
if (shell->space_pressed)
return TRUE;
break;
}
set_display = TRUE;
break;
case GDK_BUTTON_PRESS:
case GDK_SCROLL:
set_display = TRUE;
break;
case GDK_WINDOW_STATE:
{
GdkEventWindowState *sevent;
GimpDisplayShellVisibility visibility;
gboolean fullscreen;
sevent = (GdkEventWindowState *) event;
shell->window_state = sevent->new_window_state;
if (! (sevent->changed_mask & GDK_WINDOW_STATE_FULLSCREEN))
break;
fullscreen = gimp_display_shell_get_fullscreen (shell);
if (fullscreen)
{
visibility = shell->fullscreen_visibility;
shell->fullscreen_visibility = shell->visibility;
}
else
{
visibility = shell->visibility;
shell->visibility = shell->fullscreen_visibility;
}
gimp_display_shell_set_show_selection (shell, visibility.selection);
gimp_display_shell_set_show_layer (shell, visibility.active_layer);
gimp_display_shell_set_show_guides (shell, visibility.guides);
gimp_display_shell_set_show_grid (shell, visibility.grid);
gimp_display_shell_set_show_menubar (shell, visibility.menubar);
gimp_display_shell_set_show_rulers (shell, visibility.rulers);
gimp_display_shell_set_show_scrollbars (shell, visibility.scrollbars);
gimp_display_shell_set_show_statusbar (shell, visibility.statusbar);
gimp_item_factory_set_active (GTK_ITEM_FACTORY (shell->menubar_factory),
"/View/Fullscreen", fullscreen);
gimp_item_factory_set_active (GTK_ITEM_FACTORY (shell->popup_factory),
"/View/Fullscreen", fullscreen);
}
break;
default:
break;
}
if (set_display)
{
Gimp *gimp = shell->gdisp->gimage->gimp;
/* Setting the context's display automatically sets the image, too */
gimp_context_set_display (gimp_get_user_context (gimp), shell->gdisp);
}
return FALSE;
}
void
gimp_display_shell_canvas_realize (GtkWidget *canvas,
GimpDisplayShell *shell)
{
GimpDisplayConfig *config;
GimpDisplay *gdisp;
gdisp = shell->gdisp;
config = GIMP_DISPLAY_CONFIG (gdisp->gimage->gimp->config);
gtk_widget_grab_focus (shell->canvas);
gimp_display_shell_set_padding (shell,
shell->padding_mode,
&shell->padding_color);
gimp_statusbar_resize_cursor (GIMP_STATUSBAR (shell->statusbar));
gimp_display_shell_update_title (shell);
/* create the selection object */
shell->select = gimp_display_shell_selection_create (canvas->window,
shell,
gdisp->gimage->height,
gdisp->gimage->width);
shell->disp_width = canvas->allocation.width;
shell->disp_height = canvas->allocation.height;
/* create GC for rendering */
shell->render_gc = gdk_gc_new (shell->canvas->window);
gdk_gc_set_exposures (shell->render_gc, TRUE);
/* set up the scrollbar observers */
g_signal_connect (shell->hsbdata, "value_changed",
G_CALLBACK (gimp_display_shell_hscrollbar_update),
shell);
g_signal_connect (shell->vsbdata, "value_changed",
G_CALLBACK (gimp_display_shell_vscrollbar_update),
shell);
/* set the initial cursor */
gimp_display_shell_set_cursor (shell,
GDK_TOP_LEFT_ARROW,
GIMP_TOOL_CURSOR_NONE,
GIMP_CURSOR_MODIFIER_NONE);
/* allow shrinking */
gtk_widget_set_size_request (GTK_WIDGET (shell), 0, 0);
}
gboolean
gimp_display_shell_canvas_configure (GtkWidget *widget,
GdkEventConfigure *cevent,
GimpDisplayShell *shell)
{
if ((shell->disp_width != shell->canvas->allocation.width) ||
(shell->disp_height != shell->canvas->allocation.height))
{
shell->disp_width = shell->canvas->allocation.width;
shell->disp_height = shell->canvas->allocation.height;
gimp_display_shell_scroll_clamp_offsets (shell);
gimp_display_shell_scale_setup (shell);
gimp_display_shell_scaled (shell);
}
return TRUE;
}
gboolean
gimp_display_shell_canvas_expose (GtkWidget *widget,
GdkEventExpose *eevent,
GimpDisplayShell *shell)
{
GdkRectangle *rects;
gint n_rects;
gint i;
/* pause the currently active tool */
tool_manager_control_active (shell->gdisp->gimage->gimp, PAUSE,
shell->gdisp);
gdk_region_get_rectangles (eevent->region, &rects, &n_rects);
for (i = 0; i < n_rects; i++)
gimp_display_shell_draw_area (shell,
rects[i].x,
rects[i].y,
rects[i].width,
rects[i].height);
g_free (rects);
/* draw the guides */
gimp_display_shell_draw_guides (shell);
/* draw the grid */
gimp_display_shell_draw_grid (shell);
/* and the cursor (if we have a software cursor) */
if (shell->have_cursor)
gimp_display_shell_draw_cursor (shell);
/* restart (and recalculate) the selection boundaries */
gimp_display_shell_selection_start (shell->select, TRUE);
/* start the currently active tool */
tool_manager_control_active (shell->gdisp->gimage->gimp, RESUME,
shell->gdisp);
return TRUE;
}
static void
gimp_display_shell_check_device_cursor (GimpDisplayShell *shell)
{
GdkDevice *current_device;
current_device = gimp_devices_get_current (shell->gdisp->gimage->gimp);
shell->draw_cursor = ! current_device->has_cursor;
}
gboolean
gimp_display_shell_popup_menu (GtkWidget *widget)
{
GimpDisplayShell *shell;
shell = GIMP_DISPLAY_SHELL (widget);
gimp_context_set_display (gimp_get_user_context (shell->gdisp->gimage->gimp),
shell->gdisp);
gimp_item_factory_popup_with_data (shell->popup_factory,
shell->gdisp,
gimp_display_shell_origin_menu_position,
shell->origin,
NULL);
return TRUE;
}
gboolean
gimp_display_shell_canvas_tool_events (GtkWidget *canvas,
GdkEvent *event,
GimpDisplayShell *shell)
{
GimpDisplay *gdisp;
GimpImage *gimage;
Gimp *gimp;
GimpCoords display_coords;
GimpCoords image_coords;
GdkModifierType state;
guint32 time;
gboolean return_val = FALSE;
gboolean update_cursor = FALSE;
static GdkModifierType button_press_state = 0;
static GdkModifierType space_press_state = 0;
static GimpToolInfo *space_shaded_tool = NULL;
static gboolean scrolling = FALSE;
static gint scroll_start_x = 0;
static gint scroll_start_y = 0;
static gboolean button_press_before_focus = FALSE;
if (! canvas->window)
{
g_warning ("%s: called unrealized", G_STRLOC);
return FALSE;
}
gdisp = shell->gdisp;
gimage = gdisp->gimage;
gimp = gimage->gimp;
/* Find out what device the event occurred upon */
if (! gimp->busy && gimp_devices_check_change (gimp, event))
{
gimp_display_shell_check_device_cursor (shell);
}
gimp_display_shell_get_event_coords (shell, event,
gimp_devices_get_current (gimp),
&display_coords);
gimp_display_shell_get_event_state (shell, event,
gimp_devices_get_current (gimp),
&state);
time = gdk_event_get_time (event);
/* GimpCoords passed to tools are ALWAYS in image coordinates */
gimp_display_shell_untransform_coords (shell,
&display_coords,
&image_coords);
switch (event->type)
{
case GDK_ENTER_NOTIFY:
{
GdkEventCrossing *cevent;
cevent = (GdkEventCrossing *) event;
if (cevent->mode != GDK_CROSSING_NORMAL)
return TRUE;
update_cursor = TRUE;
}
break;
case GDK_LEAVE_NOTIFY:
{
GdkEventCrossing *cevent;
cevent = (GdkEventCrossing *) event;
if (cevent->mode != GDK_CROSSING_NORMAL)
return TRUE;
shell->proximity = FALSE;
gimp_display_shell_update_cursor (shell, -1, -1);
}
break;
case GDK_PROXIMITY_IN:
break;
case GDK_PROXIMITY_OUT:
shell->proximity = FALSE;
gimp_display_shell_update_cursor (shell, -1, -1);
break;
case GDK_FOCUS_CHANGE:
{
GdkEventFocus *fevent;
fevent = (GdkEventFocus *) event;
if (fevent->in)
{
GTK_WIDGET_SET_FLAGS (canvas, GTK_HAS_FOCUS);
/* press modifier keys when the canvas gets the focus
*
* in "click to focus" mode, we did this on BUTTON_PRESS, so
* do it here only if button_press_before_focus is FALSE
*/
if (state && ! button_press_before_focus)
{
gimp_display_shell_update_tool_modifiers (shell, 0, state);
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
}
}
else
{
GTK_WIDGET_UNSET_FLAGS (canvas, GTK_HAS_FOCUS);
/* reset it here to be prepared for the next
* FOCUS_IN / BUTTON_PRESS confusion
*/
button_press_before_focus = FALSE;
/* release modifier keys when the canvas loses the focus */
if (state)
{
gimp_display_shell_update_tool_modifiers (shell, state, 0);
tool_manager_oper_update_active (gimp,
&image_coords, 0,
gdisp);
}
}
/* stop the signal because otherwise gtk+ exposes the whole
* canvas to get the non-existant focus indicator drawn
*/
return_val = TRUE;
}
break;
case GDK_BUTTON_PRESS:
{
GdkEventButton *bevent;
GimpTool *active_tool;
bevent = (GdkEventButton *) event;
/* in "click to focus" mode, the BUTTON_PRESS arrives before
* FOCUS_IN, so we have to update the tool's modifier state here
*/
if (state && ! GTK_WIDGET_HAS_FOCUS (canvas))
{
gimp_display_shell_update_tool_modifiers (shell, 0, state);
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
button_press_before_focus = TRUE;
}
/* ignore new mouse events */
if (gimp->busy)
return TRUE;
active_tool = tool_manager_get_active (gimp);
switch (bevent->button)
{
case 1:
state |= GDK_BUTTON1_MASK;
if (((gimp_tool_control_motion_mode (active_tool->control) ==
GIMP_MOTION_MODE_EXACT) &&
GIMP_DISPLAY_CONFIG (gimp->config)->perfect_mouse) ||
/* don't request motion hins for XInput devices because
* the wacom driver is known to report crappy hints
* (#6901) --mitch
*/
(gimp_devices_get_current (gimp) !=
gdk_device_get_core_pointer ()))
{
gdk_pointer_grab (canvas->window, FALSE,
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL, NULL, time);
}
else
{
gdk_pointer_grab (canvas->window, FALSE,
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL, NULL, time);
}
/* save the current modifier state because tools don't get
* key events while BUTTON1 is down
*/
button_press_state = state;
if (active_tool &&
(! gimp_image_is_empty (gimage) ||
gimp_tool_control_handles_empty_image (active_tool->control)))
{
if (gimp_tool_control_auto_snap_to (active_tool->control))
{
gint x, y, width, height;
gimp_tool_control_snap_offsets (active_tool->control,
&x, &y, &width, &height);
gimp_display_shell_snap_coords (shell,
&image_coords,
&image_coords,
x, y, width, height);
update_cursor = TRUE;
}
/* initialize the current tool if it has no drawable
*/
if (! active_tool->drawable)
{
tool_manager_initialize_active (gimp, gdisp);
}
else if ((active_tool->drawable !=
gimp_image_active_drawable (gimage)) &&
! gimp_tool_control_preserve (active_tool->control))
{
/* create a new one, deleting the current
*/
gimp_context_tool_changed (gimp_get_user_context (gimp));
tool_manager_initialize_active (gimp, gdisp);
}
tool_manager_button_press_active (gimp,
&image_coords, time, state,
gdisp);
}
break;
case 2:
state |= GDK_BUTTON2_MASK;
scrolling = TRUE;
scroll_start_x = bevent->x + shell->offset_x;
scroll_start_y = bevent->y + shell->offset_y;
gtk_grab_add (canvas);
gimp_display_shell_set_override_cursor (shell, GDK_FLEUR);
break;
case 3:
state |= GDK_BUTTON3_MASK;
gimp_item_factory_popup_with_data (shell->popup_factory,
gdisp,
NULL, NULL, NULL);
return_val = TRUE;
break;
default:
break;
}
}
break;
case GDK_BUTTON_RELEASE:
{
GdkEventButton *bevent;
GimpTool *active_tool;
bevent = (GdkEventButton *) event;
active_tool = tool_manager_get_active (gimp);
if (gimp->busy)
return TRUE;
switch (bevent->button)
{
case 1:
state &= ~GDK_BUTTON1_MASK;
if (active_tool &&
(! gimp_image_is_empty (gimage) ||
gimp_tool_control_handles_empty_image (active_tool->control)))
{
if (gimp_tool_control_is_active (active_tool->control))
{
if (gimp_tool_control_auto_snap_to (active_tool->control))
{
gint x, y, width, height;
gimp_tool_control_snap_offsets (active_tool->control,
&x, &y, &width, &height);
gimp_display_shell_snap_coords (shell,
&image_coords,
&image_coords,
x, y, width, height);
update_cursor = TRUE;
}
tool_manager_button_release_active (gimp,
&image_coords,
time, state,
gdisp);
}
}
gdk_pointer_ungrab (time);
/* restore the tool's modifier state because it didn't get
* key events while BUTTON1 was down
*/
gimp_display_shell_update_tool_modifiers (shell,
button_press_state,
state);
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
if (shell->space_release_pending)
{
gdk_keyboard_ungrab (time);
gimp_display_shell_update_tool_modifiers (shell, state, 0);
gimp_context_set_tool (gimp_get_user_context (gimp),
space_shaded_tool);
space_shaded_tool = NULL;
gimp_display_shell_update_tool_modifiers (shell,
space_press_state,
state);
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
shell->space_release_pending = FALSE;
}
break;
case 2:
state &= ~GDK_BUTTON2_MASK;
scrolling = FALSE;
scroll_start_x = 0;
scroll_start_y = 0;
gtk_grab_remove (canvas);
gimp_display_shell_unset_override_cursor (shell);
break;
case 3:
state &= ~GDK_BUTTON3_MASK;
break;
default:
break;
}
}
break;
case GDK_SCROLL:
{
GdkEventScroll *sevent;
sevent = (GdkEventScroll *) event;
if (state & GDK_SHIFT_MASK)
{
if (sevent->direction == GDK_SCROLL_UP)
gimp_display_shell_scale (shell, GIMP_ZOOM_IN);
else
gimp_display_shell_scale (shell, GIMP_ZOOM_OUT);
}
else
{
GtkAdjustment *adj;
gdouble value;
if (state & GDK_CONTROL_MASK)
adj = shell->hsbdata;
else
adj = shell->vsbdata;
value = adj->value + ((sevent->direction == GDK_SCROLL_UP) ?
-adj->page_increment / 2 :
adj->page_increment / 2);
value = CLAMP (value, adj->lower, adj->upper - adj->page_size);
gtk_adjustment_set_value (adj, value);
}
gimp_display_shell_untransform_coords (shell,
&display_coords,
&image_coords);
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
return_val = TRUE;
}
break;
case GDK_MOTION_NOTIFY:
{
GdkEventMotion *mevent;
GdkEvent *compressed_motion = NULL;
GimpTool *active_tool;
mevent = (GdkEventMotion *) event;
if (gimp->busy)
return TRUE;
active_tool = tool_manager_get_active (gimp);
switch (gimp_tool_control_motion_mode (active_tool->control))
{
case GIMP_MOTION_MODE_EXACT:
case GIMP_MOTION_MODE_HINT:
break;
case GIMP_MOTION_MODE_COMPRESS:
compressed_motion = gimp_display_shell_compress_motion (shell);
break;
}
if (compressed_motion)
{
GdkDevice *device = gimp_devices_get_current (gimp);
gimp_display_shell_get_event_coords (shell, compressed_motion,
device, &display_coords);
gimp_display_shell_get_event_state (shell, compressed_motion,
device, &state);
time = gdk_event_get_time (event);
/* GimpCoords passed to tools are ALWAYS in image coordinates */
gimp_display_shell_untransform_coords (shell,
&display_coords,
&image_coords);
}
/* Ask for the pointer position, but ignore it except for cursor
* handling, so motion events sync with the button press/release events
*/
if (mevent->is_hint)
{
gimp_display_shell_get_device_coords (shell,
mevent->device,
&display_coords);
}
update_cursor = TRUE;
if (! shell->proximity)
{
shell->proximity = TRUE;
gimp_display_shell_check_device_cursor (shell);
}
if (state & GDK_BUTTON1_MASK)
{
if (active_tool &&
gimp_tool_control_is_active (active_tool->control) &&
(! gimp_image_is_empty (gimage) ||
gimp_tool_control_handles_empty_image (active_tool->control)))
{
/* if the first mouse button is down, check for automatic
* scrolling...
*/
if ((mevent->x < 0 ||
mevent->y < 0 ||
mevent->x > shell->disp_width ||
mevent->y > shell->disp_height) &&
! gimp_tool_control_scroll_lock (active_tool->control))
{
gint off_x, off_y;
off_x = off_y = 0;
/* The cases for scrolling */
if (mevent->x < 0)
off_x = mevent->x;
else if (mevent->x > shell->disp_width)
off_x = mevent->x - shell->disp_width;
if (mevent->y < 0)
off_y = mevent->y;
else if (mevent->y > shell->disp_height)
off_y = mevent->y - shell->disp_height;
if (gimp_display_shell_scroll (shell, off_x, off_y))
{
GimpCoords device_coords;
gimp_display_shell_get_device_coords (shell,
mevent->device,
&device_coords);
if (device_coords.x == mevent->x &&
device_coords.y == mevent->y)
{
/* Put this event back on the queue
* so it keeps scrolling
*/
gdk_event_put ((GdkEvent *) mevent);
}
}
}
if (gimp_tool_control_auto_snap_to (active_tool->control))
{
gint x, y, width, height;
gimp_tool_control_snap_offsets (active_tool->control,
&x, &y, &width, &height);
gimp_display_shell_snap_coords (shell,
&image_coords,
&image_coords,
x, y, width, height);
update_cursor = TRUE;
}
tool_manager_motion_active (gimp,
&image_coords, time, state,
gdisp);
}
}
else if (state & GDK_BUTTON2_MASK)
{
if (scrolling)
{
gimp_display_shell_scroll (shell,
(scroll_start_x - mevent->x -
shell->offset_x),
(scroll_start_y - mevent->y -
shell->offset_y));
}
}
if (! (state &
(GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK)))
{
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
}
}
break;
case GDK_KEY_PRESS:
{
GdkEventKey *kevent;
kevent = (GdkEventKey *) event;
switch (kevent->keyval)
{
case GDK_Left: case GDK_Right:
case GDK_Up: case GDK_Down:
if (! gimp_image_is_empty (gimage))
{
tool_manager_arrow_key_active (gimp,
kevent,
gdisp);
}
return_val = TRUE;
break;
case GDK_space:
{
GimpTool *active_tool;
active_tool = tool_manager_get_active (gimp);
if (! shell->space_pressed && ! GIMP_IS_MOVE_TOOL (active_tool))
{
GimpToolInfo *move_tool_info;
space_shaded_tool = active_tool->tool_info;
space_press_state = state;
g_print ("%s: pushing move tool\n", G_GNUC_FUNCTION);
gdk_keyboard_grab (canvas->window, FALSE, time);
move_tool_info =
tool_manager_get_info_by_type (gimp,
GIMP_TYPE_MOVE_TOOL);
gimp_context_set_tool (gimp_get_user_context (gimp),
move_tool_info);
gimp_display_shell_update_tool_modifiers (shell, 0, state);
shell->space_pressed = TRUE;
}
}
return_val = TRUE;
break;
case GDK_Tab:
if (! state)
{
GimpDialogFactory *dialog_factory;
dialog_factory = gimp_dialog_factory_from_name ("toolbox");
/* Hide or show all dialogs */
gimp_dialog_factories_toggle (dialog_factory);
}
else if (! gimp_image_is_empty (gimage))
{
if (state & GDK_MOD1_MASK)
{
gimp_display_shell_layer_select_init (gdisp->gimage,
1, kevent->time);
}
else if (state & GDK_CONTROL_MASK)
{
gimp_display_shell_layer_select_init (gdisp->gimage,
-1, kevent->time);
}
}
return_val = TRUE;
break;
/* Update the state based on modifiers being pressed */
case GDK_Alt_L: case GDK_Alt_R:
case GDK_Shift_L: case GDK_Shift_R:
case GDK_Control_L: case GDK_Control_R:
{
GdkModifierType key;
key = gimp_display_shell_key_to_state (kevent->keyval);
state |= key;
/* For all modifier keys: call the tools modifier_key *and*
* oper_update method so tools can choose if they are interested
* in the release itself or only in the resulting state
*/
if (! gimp_image_is_empty (gimage))
{
tool_manager_modifier_key_active (gimp,
key, TRUE, state,
gdisp);
}
}
break;
}
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
}
break;
case GDK_KEY_RELEASE:
{
GdkEventKey *kevent;
kevent = (GdkEventKey *) event;
switch (kevent->keyval)
{
case GDK_space:
if (shell->space_pressed)
{
g_print ("%s: popping move tool\n", G_GNUC_FUNCTION);
gdk_keyboard_ungrab (time);
gimp_display_shell_update_tool_modifiers (shell, state, 0);
gimp_context_set_tool (gimp_get_user_context (gimp),
space_shaded_tool);
space_shaded_tool = NULL;
gimp_display_shell_update_tool_modifiers (shell,
space_press_state,
state);
shell->space_pressed = FALSE;
}
return_val = TRUE;
break;
/* Update the state based on modifiers being pressed */
case GDK_Alt_L: case GDK_Alt_R:
case GDK_Shift_L: case GDK_Shift_R:
case GDK_Control_L: case GDK_Control_R:
{
GdkModifierType key;
key = gimp_display_shell_key_to_state (kevent->keyval);
state &= ~key;
/* For all modifier keys: call the tools modifier_key *and*
* oper_update method so tools can choose if they are interested
* in the press itself or only in the resulting state
*/
if (! gimp_image_is_empty (gimage))
{
tool_manager_modifier_key_active (gimp,
key, FALSE, state,
gdisp);
}
}
break;
}
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
}
break;
default:
break;
}
/* if we reached this point in gimp_busy mode, return now */
if (gimp->busy)
return return_val;
/* cursor update support */
if (GIMP_DISPLAY_CONFIG (gimp->config)->cursor_updating)
{
GimpTool *active_tool;
active_tool = tool_manager_get_active (gimp);
if (active_tool)
{
if ((! gimp_image_is_empty (gimage) ||
gimp_tool_control_handles_empty_image (active_tool->control)) &&
! (state & (GDK_BUTTON1_MASK |
GDK_BUTTON2_MASK |
GDK_BUTTON3_MASK)))
{
tool_manager_cursor_update_active (gimp,
&image_coords, state,
gdisp);
}
else if (gimp_image_is_empty (gimage))
{
gimp_display_shell_set_cursor (shell,
GIMP_BAD_CURSOR,
gimp_tool_control_get_tool_cursor (active_tool->control),
GIMP_CURSOR_MODIFIER_NONE);
}
}
else
{
gimp_display_shell_set_cursor (shell,
GIMP_BAD_CURSOR,
GIMP_TOOL_CURSOR_NONE,
GIMP_CURSOR_MODIFIER_NONE);
}
}
if (update_cursor)
{
gimp_display_shell_update_cursor (shell,
display_coords.x,
display_coords.y);
}
return return_val;
}
gboolean
gimp_display_shell_hruler_button_press (GtkWidget *widget,
GdkEventButton *event,
GimpDisplayShell *shell)
{
GimpDisplay *gdisp;
gdisp = shell->gdisp;
if (gdisp->gimage->gimp->busy)
return TRUE;
if (event->button == 1)
{
GimpToolInfo *tool_info;
GimpTool *active_tool;
tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (gdisp->gimage->gimp->tool_info_list,
"gimp-move-tool");
if (tool_info)
{
gimp_context_set_tool (gimp_get_user_context (gdisp->gimage->gimp),
tool_info);
active_tool = tool_manager_get_active (gdisp->gimage->gimp);
if (active_tool)
{
gdk_pointer_grab (shell->canvas->window, FALSE,
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL, NULL, event->time);
gimp_move_tool_start_hguide (active_tool, gdisp);
}
}
}
return FALSE;
}
gboolean
gimp_display_shell_vruler_button_press (GtkWidget *widget,
GdkEventButton *event,
GimpDisplayShell *shell)
{
GimpDisplay *gdisp;
gdisp = shell->gdisp;
if (gdisp->gimage->gimp->busy)
return TRUE;
if (event->button == 1)
{
GimpToolInfo *tool_info;
GimpTool *active_tool;
tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (gdisp->gimage->gimp->tool_info_list,
"gimp-move-tool");
if (tool_info)
{
gimp_context_set_tool (gimp_get_user_context (gdisp->gimage->gimp),
tool_info);
active_tool = tool_manager_get_active (gdisp->gimage->gimp);
if (active_tool)
{
gdk_pointer_grab (shell->canvas->window, FALSE,
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL, NULL, event->time);
gimp_move_tool_start_vguide (active_tool, gdisp);
}
}
}
return FALSE;
}
gboolean
gimp_display_shell_origin_button_press (GtkWidget *widget,
GdkEventButton *event,
GimpDisplayShell *shell)
{
if (! shell->gdisp->gimage->gimp->busy && event->button == 1)
{
gimp_display_shell_popup_menu (GTK_WIDGET (shell));
}
/* Return TRUE to stop signal emission so the button doesn't grab the
* pointer away from us.
*/
return TRUE;
}
gboolean
gimp_display_shell_color_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpDisplayShell *shell)
{
if (bevent->button == 3)
{
GimpColorButton *color_button;
guchar r, g, b;
GimpRGB color;
color_button = GIMP_COLOR_BUTTON (widget);
r = shell->canvas->style->bg[GTK_STATE_NORMAL].red >> 8;
g = shell->canvas->style->bg[GTK_STATE_NORMAL].green >> 8;
b = shell->canvas->style->bg[GTK_STATE_NORMAL].blue >> 8;
gimp_rgba_set_uchar (&color, r, g, b, 255);
gimp_item_factory_set_color (color_button->item_factory,
"/From Theme", &color, FALSE);
gimp_rgba_set_uchar (&color,
render_blend_light_check[0],
render_blend_light_check[1],
render_blend_light_check[2],
255);
gimp_item_factory_set_color (color_button->item_factory,
"/Light Check Color", &color, FALSE);
gimp_rgba_set_uchar (&color,
render_blend_dark_check[0],
render_blend_dark_check[1],
render_blend_dark_check[2],
255);
gimp_item_factory_set_color (color_button->item_factory,
"/Dark Check Color", &color, FALSE);
}
return FALSE;
}
void
gimp_display_shell_color_button_changed (GtkWidget *widget,
GimpDisplayShell *shell)
{
GimpRGB color;
shell->padding_mode_set = TRUE;
gimp_color_button_get_color (GIMP_COLOR_BUTTON (widget), &color);
gimp_display_shell_set_padding (shell,
GIMP_DISPLAY_PADDING_MODE_CUSTOM,
&color);
}
void
gimp_display_shell_color_button_menu_callback (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
GimpDisplayShell *shell;
shell = GIMP_DISPLAY_SHELL (callback_data);
if (callback_action == GIMP_DISPLAY_PADDING_MODE_CUSTOM)
{
gtk_button_clicked (GTK_BUTTON (shell->padding_button));
}
else
{
if (callback_action == 0xffff)
{
GimpDisplayConfig *config;
config = GIMP_DISPLAY_CONFIG (shell->gdisp->gimage->gimp->config);
shell->padding_mode_set = FALSE;
gimp_display_shell_set_padding (shell,
config->canvas_padding_mode,
&config->canvas_padding_color);
}
else
{
shell->padding_mode_set = TRUE;
gimp_display_shell_set_padding (shell, callback_action,
&shell->padding_color);
}
}
}
gboolean
gimp_display_shell_qmask_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpDisplayShell *shell)
{
if ((bevent->type == GDK_BUTTON_PRESS) && (bevent->button == 3))
{
gimp_item_factory_popup_with_data (shell->qmask_factory, shell,
NULL, NULL, NULL);
return TRUE;
}
return FALSE;
}
void
gimp_display_shell_qmask_toggled (GtkWidget *widget,
GimpDisplayShell *shell)
{
gimp_image_set_qmask_state (shell->gdisp->gimage,
GTK_TOGGLE_BUTTON (widget)->active);
gimp_image_flush (shell->gdisp->gimage);
}
gboolean
gimp_display_shell_nav_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpDisplayShell *shell)
{
if ((bevent->type == GDK_BUTTON_PRESS) && (bevent->button == 1))
{
gimp_navigation_view_popup (shell, widget, bevent->x, bevent->y);
}
return TRUE;
}
/* private functions */
static void
gimp_display_shell_vscrollbar_update (GtkAdjustment *adjustment,
GimpDisplayShell *shell)
{
gimp_display_shell_scroll (shell, 0, (adjustment->value - shell->offset_y));
}
static void
gimp_display_shell_hscrollbar_update (GtkAdjustment *adjustment,
GimpDisplayShell *shell)
{
gimp_display_shell_scroll (shell, (adjustment->value - shell->offset_x), 0);
}
static gboolean
gimp_display_shell_get_event_coords (GimpDisplayShell *shell,
GdkEvent *event,
GdkDevice *device,
GimpCoords *coords)
{
if (gdk_event_get_axis (event, GDK_AXIS_X, &coords->x))
{
gdk_event_get_axis (event, GDK_AXIS_Y, &coords->y);
/* CLAMP() the return value of each *_get_axis() call to be safe
* against buggy XInput drivers. Provide default values if the
* requested axis does not exist.
*/
if (gdk_event_get_axis (event, GDK_AXIS_PRESSURE, &coords->pressure))
coords->pressure = CLAMP (coords->pressure, 0.0, 1.0);
else
coords->pressure = 1.0;
if (gdk_event_get_axis (event, GDK_AXIS_XTILT, &coords->xtilt))
coords->xtilt = CLAMP (coords->xtilt, 0.0, 1.0);
else
coords->xtilt = 0.5;
if (gdk_event_get_axis (event, GDK_AXIS_YTILT, &coords->ytilt))
coords->ytilt = CLAMP (coords->ytilt, 0.0, 1.0);
else
coords->ytilt = 0.5;
if (gdk_event_get_axis (event, GDK_AXIS_WHEEL, &coords->wheel))
coords->wheel = CLAMP (coords->wheel, 0.0, 1.0);
else
coords->wheel = 0.5;
return TRUE;
}
gimp_display_shell_get_device_coords (shell, device, coords);
return FALSE;
}
static void
gimp_display_shell_get_device_coords (GimpDisplayShell *shell,
GdkDevice *device,
GimpCoords *coords)
{
gdouble axes[GDK_AXIS_LAST];
gdk_device_get_state (device, shell->canvas->window, axes, NULL);
gdk_device_get_axis (device, axes, GDK_AXIS_X, &coords->x);
gdk_device_get_axis (device, axes, GDK_AXIS_Y, &coords->y);
/* CLAMP() the return value of each *_get_axis() call to be safe
* against buggy XInput drivers. Provide default values if the
* requested axis does not exist.
*/
if (gdk_device_get_axis (device, axes, GDK_AXIS_PRESSURE, &coords->pressure))
coords->pressure = CLAMP (coords->pressure, 0.0, 1.0);
else
coords->pressure = 1.0;
if (gdk_device_get_axis (device, axes, GDK_AXIS_XTILT, &coords->xtilt))
coords->xtilt = CLAMP (coords->xtilt, 0.0, 1.0);
else
coords->xtilt = 0.5;
if (gdk_device_get_axis (device, axes, GDK_AXIS_YTILT, &coords->ytilt))
coords->ytilt = CLAMP (coords->ytilt, 0.0, 1.0);
else
coords->ytilt = 0.5;
if (gdk_device_get_axis (device, axes, GDK_AXIS_WHEEL, &coords->wheel))
coords->wheel = CLAMP (coords->wheel, 0.0, 1.0);
else
coords->wheel = 0.5;
}
static gboolean
gimp_display_shell_get_event_state (GimpDisplayShell *shell,
GdkEvent *event,
GdkDevice *device,
GdkModifierType *state)
{
if (gdk_event_get_state (event, state))
return TRUE;
gimp_display_shell_get_device_state (shell, device, state);
return FALSE;
}
static void
gimp_display_shell_get_device_state (GimpDisplayShell *shell,
GdkDevice *device,
GdkModifierType *state)
{
gdk_device_get_state (device, shell->canvas->window, NULL, state);
}
static GdkModifierType
gimp_display_shell_key_to_state (gint key)
{
switch (key)
{
case GDK_Alt_L:
case GDK_Alt_R:
return GDK_MOD1_MASK;
case GDK_Shift_L:
case GDK_Shift_R:
return GDK_SHIFT_MASK;
case GDK_Control_L:
case GDK_Control_R:
return GDK_CONTROL_MASK;
default:
return 0;
}
}
static void
gimp_display_shell_update_tool_modifiers (GimpDisplayShell *shell,
GdkModifierType old_state,
GdkModifierType current_state)
{
Gimp *gimp;
gimp = shell->gdisp->gimage->gimp;
if ((old_state & GDK_SHIFT_MASK) != (current_state & GDK_SHIFT_MASK))
{
tool_manager_modifier_key_active (gimp,
GDK_SHIFT_MASK,
(current_state & GDK_SHIFT_MASK) ?
TRUE : FALSE,
current_state,
shell->gdisp);
}
if ((old_state & GDK_CONTROL_MASK) != (current_state & GDK_CONTROL_MASK))
{
tool_manager_modifier_key_active (gimp,
GDK_CONTROL_MASK,
(current_state & GDK_CONTROL_MASK) ?
TRUE : FALSE,
current_state,
shell->gdisp);
}
if ((old_state & GDK_MOD1_MASK) != (current_state & GDK_MOD1_MASK))
{
tool_manager_modifier_key_active (gimp,
GDK_MOD1_MASK,
(current_state & GDK_MOD1_MASK) ?
TRUE : FALSE,
current_state,
shell->gdisp);
}
}
static void
gimp_display_shell_origin_menu_position (GtkMenu *menu,
gint *x,
gint *y,
gpointer data)
{
GtkWidget *origin;
gint origin_x;
gint origin_y;
origin = (GtkWidget *) data;
gdk_window_get_origin (origin->window, &origin_x, &origin_y);
*x = origin_x + origin->allocation.x + origin->allocation.width - 1;
*y = origin_y + origin->allocation.y + (origin->allocation.height - 1) / 2;
if (*x + GTK_WIDGET (menu)->allocation.width > gdk_screen_width ())
*x -= (GTK_WIDGET (menu)->allocation.width + origin->allocation.width);
if (*y + GTK_WIDGET (menu)->allocation.height > gdk_screen_height ())
*y -= (GTK_WIDGET (menu)->allocation.height);
}
/* gimp_display_shell_compress_motion:
*
* This function walks the whole GDK event queue seeking motion events
* corresponding to the widget 'widget'. If it finds any it will
* remove them from the queue, and return the most recent motion event.
* Otherwise it will return NULL.
*
* The gimp_display_shell_compress_motion function source may be re-used under
* the XFree86-style license. <adam@gimp.org>
*/
GdkEvent *
gimp_display_shell_compress_motion (GimpDisplayShell *shell)
{
GdkEvent *event;
GList *requeued_events = NULL;
GList *list;
GdkEvent *last_motion = NULL;
/* Move the entire GDK event queue to a private list, filtering
* out any motion events for the desired widget.
*/
while (gdk_events_pending ())
{
event = gdk_event_get ();
if (!event)
{
/* Do nothing */
}
else if ((gtk_get_event_widget (event) == shell->canvas) &&
(event->any.type == GDK_MOTION_NOTIFY))
{
if (last_motion)
gdk_event_free (last_motion);
last_motion = event;
}
else
{
requeued_events = g_list_prepend (requeued_events, event);
}
}
/* Replay the remains of our private event list back into the
* event queue in order.
*/
requeued_events = g_list_reverse (requeued_events);
for (list = requeued_events; list; list = g_list_next (list))
{
gdk_event_put ((GdkEvent *) list->data);
gdk_event_free ((GdkEvent *) list->data);
}
g_list_free (requeued_events);
return last_motion;
}
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