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gimp/app/widgets/gimpview-popup.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpview-popup.c
* Copyright (C) 2003-2006 Michael Natterer <mitch@gimp.org>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpcontext.h"
#include "core/gimpviewable.h"
#include "gimpview.h"
#include "gimpviewrenderer.h"
#include "gimpview-popup.h"
#define VIEW_POPUP_DELAY 150
typedef struct _GimpViewPopup GimpViewPopup;
struct _GimpViewPopup
{
GtkWidget *widget;
GimpContext *context;
GimpViewable *viewable;
gint popup_width;
gint popup_height;
gboolean dot_for_dot;
gint button;
gint button_x;
gint button_y;
guint timeout_id;
GtkWidget *popup;
};
/* local function prototypes */
static void gimp_view_popup_hide (GimpViewPopup *popup);
static gboolean gimp_view_popup_button_release (GtkWidget *widget,
GdkEventButton *bevent,
GimpViewPopup *popup);
static void gimp_view_popup_unmap (GtkWidget *widget,
GimpViewPopup *popup);
static void gimp_view_popup_drag_begin (GtkWidget *widget,
GdkDragContext *context,
GimpViewPopup *popup);
static gboolean gimp_view_popup_timeout (GimpViewPopup *popup);
/* public functions */
gboolean
gimp_view_popup_show (GtkWidget *widget,
GdkEventButton *bevent,
GimpContext *context,
GimpViewable *viewable,
gint view_width,
gint view_height,
gboolean dot_for_dot)
{
GimpViewPopup *popup;
gint popup_width;
gint popup_height;
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
g_return_val_if_fail (bevent != NULL, FALSE);
g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), FALSE);
g_return_val_if_fail (GIMP_IS_VIEWABLE (viewable), FALSE);
if (! gimp_viewable_get_popup_size (viewable,
view_width,
view_height,
dot_for_dot,
&popup_width,
&popup_height))
return FALSE;
popup = g_slice_new0 (GimpViewPopup);
popup->widget = widget;
popup->context = context;
popup->viewable = viewable;
popup->popup_width = popup_width;
popup->popup_height = popup_height;
popup->dot_for_dot = dot_for_dot;
popup->button = bevent->button;
popup->button_x = bevent->x_root;
popup->button_y = bevent->y_root;
g_signal_connect (widget, "button-release-event",
G_CALLBACK (gimp_view_popup_button_release),
popup);
g_signal_connect (widget, "unmap",
G_CALLBACK (gimp_view_popup_unmap),
popup);
g_signal_connect (widget, "drag-begin",
G_CALLBACK (gimp_view_popup_drag_begin),
popup);
popup->timeout_id = g_timeout_add (VIEW_POPUP_DELAY,
(GSourceFunc) gimp_view_popup_timeout,
popup);
g_object_set_data_full (G_OBJECT (widget), "gimp-view-popup", popup,
(GDestroyNotify) gimp_view_popup_hide);
gtk_grab_add (widget);
return TRUE;
}
/* private functions */
static void
gimp_view_popup_hide (GimpViewPopup *popup)
{
if (popup->timeout_id)
g_source_remove (popup->timeout_id);
if (popup->popup)
gtk_widget_destroy (popup->popup);
g_signal_handlers_disconnect_by_func (popup->widget,
gimp_view_popup_button_release,
popup);
g_signal_handlers_disconnect_by_func (popup->widget,
gimp_view_popup_unmap,
popup);
g_signal_handlers_disconnect_by_func (popup->widget,
gimp_view_popup_drag_begin,
popup);
gtk_grab_remove (popup->widget);
g_slice_free (GimpViewPopup, popup);
}
static gboolean
gimp_view_popup_button_release (GtkWidget *widget,
GdkEventButton *bevent,
GimpViewPopup *popup)
{
if (bevent->button == popup->button)
g_object_set_data (G_OBJECT (popup->widget), "gimp-view-popup", NULL);
return FALSE;
}
static void
gimp_view_popup_unmap (GtkWidget *widget,
GimpViewPopup *popup)
{
g_object_set_data (G_OBJECT (popup->widget), "gimp-view-popup", NULL);
}
static void
gimp_view_popup_drag_begin (GtkWidget *widget,
GdkDragContext *context,
GimpViewPopup *popup)
{
g_object_set_data (G_OBJECT (popup->widget), "gimp-view-popup", NULL);
}
static gboolean
gimp_view_popup_timeout (GimpViewPopup *popup)
{
GtkWidget *window;
GtkWidget *frame;
GtkWidget *view;
GdkScreen *screen;
GdkRectangle rect;
gint monitor;
gint x;
gint y;
popup->timeout_id = 0;
screen = gtk_widget_get_screen (popup->widget);
window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
gtk_window_set_screen (GTK_WINDOW (window), screen);
gtk_window_set_transient_for (GTK_WINDOW (window),
GTK_WINDOW (gtk_widget_get_toplevel (popup->widget)));
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
gtk_container_add (GTK_CONTAINER (window), frame);
gtk_widget_show (frame);
view = gimp_view_new_full (popup->context,
popup->viewable,
popup->popup_width,
popup->popup_height,
0, TRUE, FALSE, FALSE);
gimp_view_renderer_set_dot_for_dot (GIMP_VIEW (view)->renderer,
popup->dot_for_dot);
gtk_container_add (GTK_CONTAINER (frame), view);
gtk_widget_show (view);
x = popup->button_x - (popup->popup_width / 2);
y = popup->button_y - (popup->popup_height / 2);
monitor = gdk_screen_get_monitor_at_point (screen, x, y);
gdk_screen_get_monitor_workarea (screen, monitor, &rect);
x = CLAMP (x, rect.x, rect.x + rect.width - popup->popup_width);
y = CLAMP (y, rect.y, rect.y + rect.height - popup->popup_height);
gtk_window_move (GTK_WINDOW (window), x, y);
gtk_widget_show (window);
popup->popup = window;
return FALSE;
}
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