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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/gimpactiongroup.h"
#include "widgets/gimpcontrollers.h"
#include "widgets/gimpcontrollerkeyboard.h"
#include "widgets/gimpcontrollerwheel.h"
#include "widgets/gimpcursor.h"
#include "widgets/gimpdevices.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimpuimanager.h"
#include "widgets/gimpwidgets-utils.h"
#include "gimpcanvas.h"
#include "gimpdisplay.h"
#include "gimpdisplayoptions.h"
#include "gimpdisplayshell.h"
#include "gimpdisplayshell-appearance.h"
#include "gimpdisplayshell-callbacks.h"
#include "gimpdisplayshell-cursor.h"
#include "gimpdisplayshell-draw.h"
#include "gimpdisplayshell-layer-select.h"
#include "gimpdisplayshell-preview.h"
#include "gimpdisplayshell-scale.h"
#include "gimpdisplayshell-scroll.h"
#include "gimpdisplayshell-selection.h"
#include "gimpdisplayshell-title.h"
#include "gimpdisplayshell-transform.h"
#include "gimpnavigationeditor.h"
#include "gimp-intl.h"
/* #define DEBUG_MOVE_PUSH 1 */
/* 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 void gimp_display_shell_get_time_coords (GimpDisplayShell *shell,
GdkDevice *device,
GdkTimeCoord *event,
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);
GdkEvent * gimp_display_shell_compress_motion (GimpDisplayShell *shell);
/* public functions */
gboolean
gimp_display_shell_events (GtkWidget *widget,
GdkEvent *event,
GimpDisplayShell *shell)
{
Gimp *gimp;
gboolean set_display = FALSE;
/* are we in destruction? */
if (! shell->gdisp || ! shell->gdisp->shell)
return TRUE;
gimp = shell->gdisp->gimage->gimp;
switch (event->type)
{
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
{
GdkEventKey *kevent = (GdkEventKey *) event;
if (gimp->busy)
return TRUE;
/* 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_ISO_Left_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:
case GDK_Return: case GDK_KP_Enter:
case GDK_BackSpace: case GDK_Delete:
break;
case GDK_Escape:
if (event->type == GDK_KEY_PRESS)
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_FOCUS_CHANGE:
{
GdkEventFocus *fevent = (GdkEventFocus *) event;
if (fevent->in && GIMP_DISPLAY_CONFIG (gimp->config)->activate_on_focus)
set_display = TRUE;
}
break;
case GDK_WINDOW_STATE:
{
GdkEventWindowState *sevent = (GdkEventWindowState *) event;
GimpDisplayOptions *options;
gboolean fullscreen;
GimpActionGroup *group;
shell->window_state = sevent->new_window_state;
if (! (sevent->changed_mask & GDK_WINDOW_STATE_FULLSCREEN))
break;
fullscreen = gimp_display_shell_get_fullscreen (shell);
options = fullscreen ? shell->fullscreen_options : shell->options;
gimp_display_shell_set_show_menubar (shell,
options->show_menubar);
gimp_display_shell_set_show_rulers (shell,
options->show_rulers);
gimp_display_shell_set_show_scrollbars (shell,
options->show_scrollbars);
gimp_display_shell_set_show_statusbar (shell,
options->show_statusbar);
gimp_display_shell_set_show_selection (shell,
options->show_selection);
gimp_display_shell_set_show_layer (shell,
options->show_layer_boundary);
gimp_display_shell_set_show_guides (shell,
options->show_guides);
gimp_display_shell_set_show_grid (shell,
options->show_grid);
gimp_display_shell_set_padding (shell,
options->padding_mode,
&options->padding_color);
group = gimp_ui_manager_get_action_group (shell->menubar_manager,
"view");
gimp_action_group_set_action_active (group, "view-fullscreen",
fullscreen);
if (shell->gdisp ==
gimp_context_get_display (gimp_get_user_context (gimp)))
{
group = gimp_ui_manager_get_action_group (shell->popup_manager,
"view");
gimp_action_group_set_action_active (group, "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;
GimpCanvasPaddingMode padding_mode;
GimpRGB padding_color;
gdisp = shell->gdisp;
config = GIMP_DISPLAY_CONFIG (gdisp->gimage->gimp->config);
gtk_widget_grab_focus (shell->canvas);
gimp_display_shell_get_padding (shell, &padding_mode, &padding_color);
gimp_display_shell_set_padding (shell, padding_mode, &padding_color);
gimp_display_shell_title_update (shell);
shell->disp_width = canvas->allocation.width;
shell->disp_height = canvas->allocation.height;
/* 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);
gimp_display_shell_draw_vectors (shell);
}
void
gimp_display_shell_canvas_size_allocate (GtkWidget *widget,
GtkAllocation *allocation,
GimpDisplayShell *shell)
{
/* are we in destruction? */
if (! shell->gdisp || ! shell->gdisp->shell)
return;
if ((shell->disp_width != allocation->width) ||
(shell->disp_height != allocation->height))
{
if (shell->zoom_on_resize &&
shell->disp_width > 64 &&
shell->disp_height > 64 &&
allocation->width > 64 &&
allocation->height > 64)
{
gdouble scale = shell->scale;
gint offset_x;
gint offset_y;
/* multiply the zoom_factor with the ratio of the new and
* old canvas diagonals
*/
scale *= (sqrt (SQR (allocation->width) +
SQR (allocation->height)) /
sqrt (SQR (shell->disp_width) +
SQR (shell->disp_height)));
offset_x = UNSCALEX (shell, shell->offset_x);
offset_y = UNSCALEX (shell, shell->offset_y);
shell->scale = scale;
shell->offset_x = SCALEX (shell, offset_x);
shell->offset_y = SCALEY (shell, offset_y);
}
shell->disp_width = allocation->width;
shell->disp_height = allocation->height;
gimp_display_shell_scroll_clamp_offsets (shell);
gimp_display_shell_scale_setup (shell);
gimp_display_shell_scaled (shell);
}
}
gboolean
gimp_display_shell_canvas_expose (GtkWidget *widget,
GdkEventExpose *eevent,
GimpDisplayShell *shell)
{
GdkRegion *region = NULL;
GdkRectangle *rects;
gint n_rects;
gint i;
/* are we in destruction? */
if (! shell->gdisp || ! shell->gdisp->shell)
return TRUE;
/* If the call to gimp_display_shell_pause() would cause a redraw,
* we need to make sure that no XOR drawing happens on areas that
* have already been cleared by the windowing system.
*/
if (shell->paused_count == 0)
{
GdkRectangle area;
area.x = 0;
area.y = 0;
area.width = shell->disp_width;
area.height = shell->disp_height;
region = gdk_region_rectangle (&area);
gdk_region_subtract (region, eevent->region);
gimp_canvas_set_clip_region (GIMP_CANVAS (shell->canvas),
GIMP_CANVAS_STYLE_XOR, region);
gimp_canvas_set_clip_region (GIMP_CANVAS (shell->canvas),
GIMP_CANVAS_STYLE_XOR_DASHED, region);
}
gimp_display_shell_pause (shell);
if (region)
{
gimp_canvas_set_clip_region (GIMP_CANVAS (shell->canvas),
GIMP_CANVAS_STYLE_XOR, NULL);
gimp_canvas_set_clip_region (GIMP_CANVAS (shell->canvas),
GIMP_CANVAS_STYLE_XOR_DASHED, NULL);
gdk_region_destroy (region);
}
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 transform tool preview */
gimp_display_shell_preview_transform (shell);
/* draw the guides */
gimp_display_shell_draw_guides (shell);
/* draw the grid */
gimp_display_shell_draw_grid (shell, &eevent->area);
/* and the cursor (if we have a software cursor) */
gimp_display_shell_draw_cursor (shell);
/* restart (and recalculate) the selection boundaries */
gimp_display_shell_selection_start (shell->select, TRUE);
gimp_display_shell_resume (shell);
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_canvas_tool_events (GtkWidget *canvas,
GdkEvent *event,
GimpDisplayShell *shell)
{
GimpDisplay *gdisp;
GimpImage *gimage;
Gimp *gimp;
GdkDisplay *gdk_display;
GimpTool *active_tool;
GimpCoords display_coords;
GimpCoords image_coords;
GdkModifierType state;
guint32 time;
gboolean return_val = FALSE;
gboolean update_cursor = FALSE;
static GimpToolInfo *space_shaded_tool = NULL;
if (! canvas->window)
{
g_warning ("%s: called unrealized", G_STRFUNC);
return FALSE;
}
/* are we in destruction? */
if (! shell->gdisp || ! shell->gdisp->shell)
return TRUE;
/* set the active display before doing any other canvas event processing */
if (gimp_display_shell_events (canvas, event, shell))
return TRUE;
gdisp = shell->gdisp;
gimage = gdisp->gimage;
gimp = gimage->gimp;
gdk_display = gtk_widget_get_display (canvas);
/* 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);
active_tool = tool_manager_get_active (gimp);
if (active_tool && 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);
if (gimp_display_shell_snap_coords (shell,
&image_coords,
&image_coords,
x, y, width, height))
{
update_cursor = TRUE;
}
}
switch (event->type)
{
case GDK_ENTER_NOTIFY:
{
GdkEventCrossing *cevent = (GdkEventCrossing *) event;
if (cevent->mode != GDK_CROSSING_NORMAL)
return TRUE;
update_cursor = TRUE;
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
}
break;
case GDK_LEAVE_NOTIFY:
{
GdkEventCrossing *cevent = (GdkEventCrossing *) event;
if (cevent->mode != GDK_CROSSING_NORMAL)
return TRUE;
shell->proximity = FALSE;
gimp_display_shell_clear_cursor (shell);
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
}
break;
case GDK_PROXIMITY_IN:
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
break;
case GDK_PROXIMITY_OUT:
shell->proximity = FALSE;
gimp_display_shell_clear_cursor (shell);
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
break;
case GDK_FOCUS_CHANGE:
{
GdkEventFocus *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 (! shell->button_press_before_focus)
{
tool_manager_focus_display_active (gimp, gdisp);
tool_manager_modifier_state_active (gimp, state, gdisp);
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
*/
shell->button_press_before_focus = FALSE;
/* release modifier keys when the canvas loses the focus */
tool_manager_focus_display_active (gimp, NULL);
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 = (GdkEventButton *) event;
GdkEventMask event_mask;
if (! GTK_WIDGET_HAS_FOCUS (canvas))
{
/* in "click to focus" mode, the BUTTON_PRESS arrives before
* FOCUS_IN, so we have to update the tool's modifier state here
*/
tool_manager_focus_display_active (gimp, gdisp);
tool_manager_modifier_state_active (gimp, state, gdisp);
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
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)) &&
(bevent->button == 1 ||
bevent->button == 2 ||
bevent->button == 3))
{
tool_manager_cursor_update_active (gimp,
&image_coords, state,
gdisp);
}
else if (gimp_image_is_empty (gimage))
{
gimp_display_shell_set_cursor (shell,
GIMP_CURSOR_BAD,
gimp_tool_control_get_tool_cursor (active_tool->control),
GIMP_CURSOR_MODIFIER_NONE);
}
}
else
{
gimp_display_shell_set_cursor (shell,
GIMP_CURSOR_BAD,
GIMP_TOOL_CURSOR_NONE,
GIMP_CURSOR_MODIFIER_NONE);
}
shell->button_press_before_focus = TRUE;
/* we expect a FOCUS_IN event to follow, but can't rely
* on it, so force one
*/
gdk_window_focus (canvas->window, time);
}
/* 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;
event_mask = (GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK);
if (active_tool &&
(! GIMP_DISPLAY_CONFIG (gimp->config)->perfect_mouse ||
(gimp_tool_control_motion_mode (active_tool->control) !=
GIMP_MOTION_MODE_EXACT)))
{
/* don't request motion hins for XInput devices because
* the wacom driver is known to report crappy hints
* (#6901) --mitch
*/
if (gimp_devices_get_current (gimp) ==
gdk_display_get_core_pointer (gdk_display))
{
event_mask |= (GDK_POINTER_MOTION_HINT_MASK);
}
}
gdk_pointer_grab (canvas->window,
FALSE, event_mask, NULL, NULL, time);
if (! shell->space_pressed && ! shell->space_release_pending)
gdk_keyboard_grab (canvas->window, FALSE, time);
if (active_tool &&
(! gimp_image_is_empty (gimage) ||
gimp_tool_control_handles_empty_image (active_tool->control)))
{
gboolean initialized = TRUE;
/* initialize the current tool if it has no drawable
*/
if (! active_tool->drawable)
{
initialized = 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));
initialized = tool_manager_initialize_active (gimp, gdisp);
}
if (initialized)
{
tool_manager_button_press_active (gimp,
&image_coords, time, state,
gdisp);
shell->last_motion_time = bevent->time;
}
}
break;
case 2:
state |= GDK_BUTTON2_MASK;
shell->scrolling = TRUE;
shell->scroll_start_x = bevent->x + shell->offset_x;
shell->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_ui_manager_ui_popup (shell->popup_manager,
"/dummy-menubar/image-popup",
GTK_WIDGET (shell),
NULL, NULL, NULL, NULL);
return_val = TRUE;
break;
default:
break;
}
}
break;
case GDK_BUTTON_RELEASE:
{
GdkEventButton *bevent = (GdkEventButton *) event;
if (gimp->busy)
return TRUE;
active_tool = tool_manager_get_active (gimp);
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))
{
tool_manager_button_release_active (gimp,
&image_coords,
time, state,
gdisp);
}
}
/* update the tool's modifier state because it didn't get
* key events while BUTTON1 was down
*/
tool_manager_focus_display_active (gimp, gdisp);
tool_manager_modifier_state_active (gimp, state, gdisp);
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
if (! shell->space_pressed && ! shell->space_release_pending)
gdk_display_keyboard_ungrab (gdk_display, time);
gdk_display_pointer_ungrab (gdk_display, time);
if (shell->space_release_pending)
{
#ifdef DEBUG_MOVE_PUSH
g_printerr ("%s: popping move tool\n", G_STRFUNC);
#endif
gimp_context_set_tool (gimp_get_user_context (gimp),
space_shaded_tool);
space_shaded_tool = NULL;
tool_manager_focus_display_active (gimp, gdisp);
tool_manager_modifier_state_active (gimp, state, gdisp);
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
shell->space_release_pending = FALSE;
gdk_display_keyboard_ungrab (gdk_display, time);
}
break;
case 2:
state &= ~GDK_BUTTON2_MASK;
shell->scrolling = FALSE;
shell->scroll_start_x = 0;
shell->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 = (GdkEventScroll *) event;
GdkScrollDirection direction;
GimpController *wheel;
wheel = gimp_controllers_get_wheel (gimp);
if (wheel &&
gimp_controller_wheel_scroll (GIMP_CONTROLLER_WHEEL (wheel),
sevent))
return TRUE;
direction = sevent->direction;
if (state & GDK_SHIFT_MASK)
{
switch (direction)
{
case GDK_SCROLL_UP:
gimp_display_shell_scale (shell, GIMP_ZOOM_IN, 0.0);
break;
case GDK_SCROLL_DOWN:
gimp_display_shell_scale (shell, GIMP_ZOOM_OUT, 0.0);
break;
default:
break;
}
}
else
{
GtkAdjustment *adj = NULL;
gdouble value;
if (state & GDK_CONTROL_MASK)
switch (direction)
{
case GDK_SCROLL_UP: direction = GDK_SCROLL_LEFT; break;
case GDK_SCROLL_DOWN: direction = GDK_SCROLL_RIGHT; break;
case GDK_SCROLL_LEFT: direction = GDK_SCROLL_UP; break;
case GDK_SCROLL_RIGHT: direction = GDK_SCROLL_DOWN; break;
}
switch (direction)
{
case GDK_SCROLL_LEFT:
case GDK_SCROLL_RIGHT:
adj = shell->hsbdata;
break;
case GDK_SCROLL_UP:
case GDK_SCROLL_DOWN:
adj = shell->vsbdata;
break;
}
value = adj->value + ((direction == GDK_SCROLL_UP ||
direction == GDK_SCROLL_LEFT) ?
-adj->page_increment / 2 :
adj->page_increment / 2);
value = CLAMP (value, adj->lower, adj->upper - adj->page_size);
gtk_adjustment_set_value (adj, value);
}
/* GimpCoords passed to tools are ALWAYS in image coordinates */
gimp_display_shell_untransform_coords (shell,
&display_coords,
&image_coords);
active_tool = tool_manager_get_active (gimp);
if (active_tool &&
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);
if (gimp_display_shell_snap_coords (shell,
&image_coords,
&image_coords,
x, y, width, height))
{
update_cursor = TRUE;
}
}
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
return_val = TRUE;
}
break;
case GDK_MOTION_NOTIFY:
{
GdkEventMotion *mevent = (GdkEventMotion *) event;
GdkEvent *compressed_motion = NULL;
if (gimp->busy)
return TRUE;
active_tool = tool_manager_get_active (gimp);
if (active_tool &&
gimp_tool_control_motion_mode (active_tool->control) ==
GIMP_MOTION_MODE_COMPRESS)
{
compressed_motion = gimp_display_shell_compress_motion (shell);
}
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);
if (active_tool &&
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);
}
}
/* 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)))
{
GdkTimeCoord **history_events;
gint n_history_events;
/* 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 = 0;
gint 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_motion_mode (active_tool->control) ==
GIMP_MOTION_MODE_EXACT &&
gdk_device_get_history (mevent->device, mevent->window,
shell->last_motion_time,
mevent->time,
&history_events,
&n_history_events))
{
gint i;
for (i = 0; i < n_history_events; i++)
{
gimp_display_shell_get_time_coords (shell,
mevent->device,
history_events[i],
&display_coords);
/* GimpCoords passed to tools are ALWAYS in
* image coordinates
*/
gimp_display_shell_untransform_coords (shell,
&display_coords,
&image_coords);
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);
}
tool_manager_motion_active (gimp,
&image_coords,
history_events[i]->time,
state,
gdisp);
}
gdk_device_free_history (history_events, n_history_events);
}
else
{
tool_manager_motion_active (gimp,
&image_coords, time, state,
gdisp);
}
shell->last_motion_time = mevent->time;
}
}
else if (state & GDK_BUTTON2_MASK)
{
if (shell->scrolling)
{
gimp_display_shell_scroll (shell,
(shell->scroll_start_x - mevent->x -
shell->offset_x),
(shell->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 = (GdkEventKey *) event;
tool_manager_focus_display_active (gimp, gdisp);
switch (kevent->keyval)
{
case GDK_Return:
case GDK_KP_Enter:
case GDK_BackSpace:
case GDK_Delete:
case GDK_Escape:
case GDK_Left:
case GDK_Right:
case GDK_Up:
case GDK_Down:
if (gimp_image_is_empty (gimage) ||
! tool_manager_key_press_active (gimp,
kevent,
gdisp))
{
GimpController *keyboard;
keyboard = gimp_controllers_get_keyboard (gimp);
if (keyboard)
gimp_controller_keyboard_key_press (GIMP_CONTROLLER_KEYBOARD (keyboard),
kevent);
}
return_val = TRUE;
break;
case GDK_space:
{
active_tool = tool_manager_get_active (gimp);
if (active_tool &&
! shell->space_pressed && ! GIMP_IS_MOVE_TOOL (active_tool))
{
GimpToolInfo *move_tool_info;
move_tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (gimp->tool_info_list,
"gimp-move-tool");
if (GIMP_IS_TOOL_INFO (move_tool_info))
{
#ifdef DEBUG_MOVE_PUSH
g_printerr ("%s: pushing move tool\n", G_STRFUNC);
#endif
space_shaded_tool = active_tool->tool_info;
gdk_keyboard_grab (canvas->window, FALSE, time);
gimp_context_set_tool (gimp_get_user_context (gimp),
move_tool_info);
tool_manager_focus_display_active (gimp, gdisp);
tool_manager_modifier_state_active (gimp, state, gdisp);
shell->space_pressed = TRUE;
}
}
}
return_val = TRUE;
break;
case GDK_Tab:
case GDK_ISO_Left_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, FALSE);
}
else if (! gimp_image_is_empty (gimage))
{
if (state & GDK_CONTROL_MASK)
{
if (kevent->keyval == GDK_Tab)
gimp_display_shell_layer_select_init (shell,
1, kevent->time);
else
gimp_display_shell_layer_select_init (shell,
-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_state *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_state_active (gimp, state, gdisp);
}
break;
}
tool_manager_oper_update_active (gimp,
&image_coords, state,
gdisp);
}
break;
case GDK_KEY_RELEASE:
{
GdkEventKey *kevent = (GdkEventKey *) event;
tool_manager_focus_display_active (gimp, gdisp);
switch (kevent->keyval)
{
case GDK_space:
if (shell->space_pressed)
{
#ifdef DEBUG_MOVE_PUSH
g_printerr ("%s: popping move tool\n", G_STRFUNC);
#endif
gimp_context_set_tool (gimp_get_user_context (gimp),
space_shaded_tool);
space_shaded_tool = NULL;
tool_manager_focus_display_active (gimp, gdisp);
tool_manager_modifier_state_active (gimp, state, gdisp);
shell->space_pressed = FALSE;
gdk_display_keyboard_ungrab (gdk_display, 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_state *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_state_active (gimp, 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)
{
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_CURSOR_BAD,
gimp_tool_control_get_tool_cursor (active_tool->control),
GIMP_CURSOR_MODIFIER_NONE);
}
}
else
{
gimp_display_shell_set_cursor (shell,
GIMP_CURSOR_BAD,
GIMP_TOOL_CURSOR_NONE,
GIMP_CURSOR_MODIFIER_NONE);
}
}
if (update_cursor)
gimp_display_shell_update_cursor (shell,
(gint) display_coords.x,
(gint) display_coords.y,
(gint) image_coords.x,
(gint) image_coords.y);
return return_val;
}
gboolean
gimp_display_shell_hruler_button_press (GtkWidget *widget,
GdkEventButton *event,
GimpDisplayShell *shell)
{
GimpDisplay *gdisp = shell->gdisp;
if (gdisp->gimage->gimp->busy)
return TRUE;
if (event->type == GDK_BUTTON_PRESS && event->button == 1)
{
GimpToolInfo *tool_info;
tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (gdisp->gimage->gimp->tool_info_list,
"gimp-move-tool");
if (tool_info)
{
GimpTool *active_tool;
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);
gdk_keyboard_grab (shell->canvas->window, FALSE, 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 = shell->gdisp;
if (gdisp->gimage->gimp->busy)
return TRUE;
if (event->type == GDK_BUTTON_PRESS && event->button == 1)
{
GimpToolInfo *tool_info;
tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (gdisp->gimage->gimp->tool_info_list,
"gimp-move-tool");
if (tool_info)
{
GimpTool *active_tool;
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);
gdk_keyboard_grab (shell->canvas->window, FALSE, 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)
{
if (event->button == 1)
{
gboolean unused;
g_signal_emit_by_name (shell, "popup-menu", &unused);
}
}
/* Return TRUE to stop signal emission so the button doesn't grab the
* pointer away from us.
*/
return TRUE;
}
gboolean
gimp_display_shell_qmask_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpDisplayShell *shell)
{
if ((bevent->type == GDK_BUTTON_PRESS) && (bevent->button == 3))
{
gimp_ui_manager_ui_popup (shell->menubar_manager, "/qmask-popup",
GTK_WIDGET (shell),
NULL, NULL, NULL, NULL);
return TRUE;
}
return FALSE;
}
void
gimp_display_shell_qmask_toggled (GtkWidget *widget,
GimpDisplayShell *shell)
{
if (GTK_TOGGLE_BUTTON (widget)->active !=
gimp_image_get_qmask_state (shell->gdisp->gimage))
{
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_editor_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, GIMP_COORDS_MIN_PRESSURE,
GIMP_COORDS_MAX_PRESSURE);
else
coords->pressure = GIMP_COORDS_DEFAULT_PRESSURE;
if (gdk_event_get_axis (event, GDK_AXIS_XTILT, &coords->xtilt))
coords->xtilt = CLAMP (coords->xtilt, GIMP_COORDS_MIN_TILT,
GIMP_COORDS_MAX_TILT);
else
coords->xtilt = GIMP_COORDS_DEFAULT_TILT;
if (gdk_event_get_axis (event, GDK_AXIS_YTILT, &coords->ytilt))
coords->ytilt = CLAMP (coords->ytilt, GIMP_COORDS_MIN_TILT,
GIMP_COORDS_MAX_TILT);
else
coords->ytilt = GIMP_COORDS_DEFAULT_TILT;
if (gdk_event_get_axis (event, GDK_AXIS_WHEEL, &coords->wheel))
coords->wheel = CLAMP (coords->wheel, GIMP_COORDS_MIN_WHEEL,
GIMP_COORDS_MAX_WHEEL);
else
coords->wheel = GIMP_COORDS_DEFAULT_WHEEL;
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, GIMP_COORDS_MIN_PRESSURE,
GIMP_COORDS_MAX_PRESSURE);
else
coords->pressure = GIMP_COORDS_DEFAULT_PRESSURE;
if (gdk_device_get_axis (device, axes, GDK_AXIS_XTILT, &coords->xtilt))
coords->xtilt = CLAMP (coords->xtilt, GIMP_COORDS_MIN_TILT,
GIMP_COORDS_MAX_TILT);
else
coords->xtilt = GIMP_COORDS_DEFAULT_TILT;
if (gdk_device_get_axis (device, axes, GDK_AXIS_YTILT, &coords->ytilt))
coords->ytilt = CLAMP (coords->ytilt, GIMP_COORDS_MIN_TILT,
GIMP_COORDS_MAX_TILT);
else
coords->ytilt = GIMP_COORDS_DEFAULT_TILT;
if (gdk_device_get_axis (device, axes, GDK_AXIS_WHEEL, &coords->wheel))
coords->wheel = CLAMP (coords->wheel, GIMP_COORDS_MIN_WHEEL,
GIMP_COORDS_MAX_WHEEL);
else
coords->wheel = GIMP_COORDS_DEFAULT_WHEEL;
}
static void
gimp_display_shell_get_time_coords (GimpDisplayShell *shell,
GdkDevice *device,
GdkTimeCoord *event,
GimpCoords *coords)
{
gdk_device_get_axis (device, event->axes, GDK_AXIS_X, &coords->x);
gdk_device_get_axis (device, event->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, event->axes, GDK_AXIS_PRESSURE, &coords->pressure))
coords->pressure = CLAMP (coords->pressure, GIMP_COORDS_MIN_PRESSURE,
GIMP_COORDS_MAX_PRESSURE);
else
coords->pressure = GIMP_COORDS_DEFAULT_PRESSURE;
if (gdk_device_get_axis (device, event->axes, GDK_AXIS_XTILT, &coords->xtilt))
coords->xtilt = CLAMP (coords->xtilt, GIMP_COORDS_MIN_TILT,
GIMP_COORDS_MAX_TILT);
else
coords->xtilt = GIMP_COORDS_DEFAULT_TILT;
if (gdk_device_get_axis (device, event->axes, GDK_AXIS_YTILT, &coords->ytilt))
coords->ytilt = CLAMP (coords->ytilt, GIMP_COORDS_MIN_TILT,
GIMP_COORDS_MAX_TILT);
else
coords->ytilt = GIMP_COORDS_DEFAULT_TILT;
if (gdk_device_get_axis (device, event->axes, GDK_AXIS_WHEEL, &coords->wheel))
coords->wheel = CLAMP (coords->wheel, GIMP_COORDS_MIN_WHEEL,
GIMP_COORDS_MAX_WHEEL);
else
coords->wheel = GIMP_COORDS_DEFAULT_WHEEL;
}
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;
}
}
/* 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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