mirror of https://github.com/GNOME/gimp.git
290 lines
7.9 KiB
C
290 lines
7.9 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#include "display-types.h"
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#include "core/gimpcontainer.h"
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#include "core/gimpimage.h"
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#include "core/gimplayer.h"
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#include "widgets/gimppreview.h"
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#include "gimpdisplay-foreach.h"
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#include "gimpdisplayshell-layer-select.h"
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#include "gimprc.h"
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#include "libgimp/gimpintl.h"
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typedef struct _LayerSelect LayerSelect;
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struct _LayerSelect
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{
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GtkWidget *shell;
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GtkWidget *preview;
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GtkWidget *label;
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GimpImage *gimage;
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GimpLayer *current_layer;
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};
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/* local function prototypes */
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static void layer_select_advance (LayerSelect *layer_select,
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gint move);
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static void layer_select_end (LayerSelect *layer_select,
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guint32 time);
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static void layer_select_set_image (LayerSelect *layer_select,
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GimpImage *gimage);
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static gint layer_select_events (GtkWidget *widget,
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GdkEvent *event);
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/* private variables */
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static LayerSelect *layer_select = NULL;
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/* public functions */
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void
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gimp_display_shell_layer_select_init (GimpImage *gimage,
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gint move,
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guint32 time)
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{
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GimpLayer *layer;
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GtkWidget *frame1;
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GtkWidget *frame2;
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GtkWidget *hbox;
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GtkWidget *alignment;
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g_return_if_fail (GIMP_IS_IMAGE (gimage));
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layer = gimp_image_get_active_layer (gimage);
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if (! layer)
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return;
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if (! layer_select)
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{
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layer_select = g_new0 (LayerSelect, 1);
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layer_select->preview = gimp_preview_new (GIMP_VIEWABLE (layer),
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gimprc.preview_size, 1,
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FALSE);
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layer_select->label = gtk_label_new (NULL);
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layer_select_set_image (layer_select, gimage);
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layer_select_advance (layer_select, move);
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/* The shell and main vbox */
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layer_select->shell = gtk_window_new (GTK_WINDOW_POPUP);
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gtk_window_set_wmclass (GTK_WINDOW (layer_select->shell),
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"layer_select", "Gimp");
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gtk_window_set_title (GTK_WINDOW (layer_select->shell),
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_("Layer Select"));
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gtk_window_set_position (GTK_WINDOW (layer_select->shell),
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GTK_WIN_POS_MOUSE);
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gtk_widget_set_events (layer_select->shell, (GDK_KEY_PRESS_MASK |
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GDK_KEY_RELEASE_MASK |
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GDK_BUTTON_PRESS_MASK));
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g_signal_connect (G_OBJECT (layer_select->shell), "event",
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G_CALLBACK (layer_select_events),
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layer_select);
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frame1 = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame1), GTK_SHADOW_OUT);
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gtk_container_add (GTK_CONTAINER (layer_select->shell), frame1);
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frame2 = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame2), GTK_SHADOW_IN);
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gtk_container_add (GTK_CONTAINER (frame1), frame2);
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hbox = gtk_hbox_new (FALSE, 1);
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gtk_container_add (GTK_CONTAINER (frame2), hbox);
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/* The preview */
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alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
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gtk_box_pack_start (GTK_BOX (hbox), alignment, FALSE, FALSE, 0);
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gtk_widget_show (alignment);
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gtk_container_add (GTK_CONTAINER (alignment), layer_select->preview);
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gtk_widget_show (layer_select->preview);
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gtk_widget_show (alignment);
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/* the layer name label */
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gtk_box_pack_start (GTK_BOX (hbox),
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layer_select->label, FALSE, FALSE, 2);
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gtk_widget_show (layer_select->label);
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gtk_widget_show (hbox);
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gtk_widget_show (frame1);
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gtk_widget_show (frame2);
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gtk_widget_show (layer_select->shell);
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}
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else
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{
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layer_select_set_image (layer_select, gimage);
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layer_select_advance (layer_select, move);
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if (! GTK_WIDGET_VISIBLE (layer_select->shell))
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gtk_widget_show (layer_select->shell);
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}
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gdk_keyboard_grab (layer_select->shell->window, FALSE, time);
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}
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/* private functions */
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static void
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layer_select_advance (LayerSelect *layer_select,
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gint move)
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{
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GimpLayer *layer;
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gint index;
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index = 0;
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if (move == 0)
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return;
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/* If there is a floating selection, allow no advancement */
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if (gimp_image_floating_sel (layer_select->gimage))
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return;
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index = gimp_container_get_child_index (layer_select->gimage->layers,
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GIMP_OBJECT (layer_select->current_layer));
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index += move;
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index = CLAMP (index, 0,
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gimp_container_num_children (layer_select->gimage->layers) - 1);
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layer = (GimpLayer *)
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gimp_container_get_child_by_index (layer_select->gimage->layers, index);
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if (layer && layer != layer_select->current_layer)
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{
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layer_select->current_layer = layer;
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gimp_preview_set_viewable (GIMP_PREVIEW (layer_select->preview),
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GIMP_VIEWABLE (layer_select->current_layer));
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gtk_label_set_text (GTK_LABEL (layer_select->label),
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GIMP_OBJECT (layer_select->current_layer)->name);
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}
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}
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static void
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layer_select_end (LayerSelect *layer_select,
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guint32 time)
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{
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gdk_keyboard_ungrab (time);
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gtk_widget_hide (layer_select->shell);
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/* only reset the active layer if a new layer was specified */
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if (layer_select->current_layer !=
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gimp_image_get_active_layer (layer_select->gimage))
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{
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gimp_image_set_active_layer (layer_select->gimage,
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layer_select->current_layer);
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gdisplays_flush ();
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}
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}
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static void
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layer_select_set_image (LayerSelect *layer_select,
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GimpImage *gimage)
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{
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layer_select->gimage = gimage;
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layer_select->current_layer = gimp_image_get_active_layer (gimage);
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gimp_preview_set_viewable (GIMP_PREVIEW (layer_select->preview),
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GIMP_VIEWABLE (layer_select->current_layer));
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gimp_preview_set_size (GIMP_PREVIEW (layer_select->preview),
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gimprc.preview_size, 1);
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gtk_label_set_text (GTK_LABEL (layer_select->label),
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GIMP_OBJECT (layer_select->current_layer)->name);
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}
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static gint
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layer_select_events (GtkWidget *widget,
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GdkEvent *event)
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{
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GdkEventKey *kevent;
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GdkEventButton *bevent;
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switch (event->type)
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{
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case GDK_BUTTON_PRESS:
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bevent = (GdkEventButton *) event;
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layer_select_end (layer_select, bevent->time);
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break;
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case GDK_KEY_PRESS:
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kevent = (GdkEventKey *) event;
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switch (kevent->keyval)
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{
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case GDK_Tab:
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if (kevent->state & GDK_MOD1_MASK)
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layer_select_advance (layer_select, 1);
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else if (kevent->state & GDK_CONTROL_MASK)
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layer_select_advance (layer_select, -1);
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break;
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}
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return TRUE;
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break;
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case GDK_KEY_RELEASE:
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kevent = (GdkEventKey *) event;
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switch (kevent->keyval)
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{
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case GDK_Alt_L: case GDK_Alt_R:
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kevent->state &= ~GDK_MOD1_MASK;
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break;
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case GDK_Control_L: case GDK_Control_R:
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kevent->state &= ~GDK_CONTROL_MASK;
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break;
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case GDK_Shift_L: case GDK_Shift_R:
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kevent->state &= ~GDK_SHIFT_MASK;
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break;
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}
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if (! (kevent->state & (GDK_MOD1_MASK | GDK_CONTROL_MASK)))
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layer_select_end (layer_select, kevent->time);
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return TRUE;
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break;
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default:
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break;
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}
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return FALSE;
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}
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