824 lines
29 KiB
C
824 lines
29 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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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 3 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, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libpikabase/pikabase.h"
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#include "libpikacolor/pikacolor.h"
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#include "libpikamath/pikamath.h"
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#include "libpikawidgets/pikawidgets.h"
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#include "widgets-types.h"
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#include "core/pika.h"
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#include "core/pikacontext.h"
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#include "core/pikacontainer.h"
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#include "core/pikaimage.h"
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#include "core/pikaimage-colormap.h"
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#include "core/pikamarshal.h"
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#include "core/pikapalette.h"
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#include "core/pikaprojection.h"
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#include "pikacolordialog.h"
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#include "pikacolormapselection.h"
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#include "pikadialogfactory.h"
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#include "pikadnd.h"
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#include "pikadocked.h"
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#include "pikamenufactory.h"
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#include "pikapaletteview.h"
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#include "pikauimanager.h"
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#include "pikaviewrendererpalette.h"
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#include "pikawidgets-utils.h"
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#include "pika-intl.h"
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enum
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{
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PROP_0,
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PROP_CONTEXT,
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PROP_INDEX
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};
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enum
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{
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COLOR_CLICKED,
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COLOR_ACTIVATED,
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LAST_SIGNAL
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};
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#define BORDER 6
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#define RGB_EPSILON 1e-6
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#define HAVE_COLORMAP(image) \
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(image != NULL && \
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pika_image_get_base_type (image) == PIKA_INDEXED && \
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pika_image_get_colormap_palette (image) != NULL)
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static void pika_colormap_selection_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void pika_colormap_selection_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static void pika_colormap_selection_dispose (GObject *object);
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static void pika_colormap_selection_finalize (GObject *object);
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static void pika_colormap_selection_unmap (GtkWidget *widget);
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static PangoLayout *
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pika_colormap_selection_create_layout (GtkWidget *widget);
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static void pika_colormap_selection_update_entries (PikaColormapSelection *selection);
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static gboolean
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pika_colormap_selection_preview_draw (GtkWidget *widget,
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cairo_t *cr,
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PikaColormapSelection *selection);
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static void pika_colormap_selection_entry_clicked (PikaPaletteView *view,
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PikaPaletteEntry *entry,
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GdkModifierType state,
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PikaColormapSelection *selection);
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static void pika_colormap_selection_entry_selected (PikaPaletteView *view,
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PikaPaletteEntry *entry,
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PikaColormapSelection *selection);
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static void pika_colormap_selection_entry_activated (PikaPaletteView *view,
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PikaPaletteEntry *entry,
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PikaColormapSelection *selection);
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static void pika_colormap_selection_color_dropped (PikaPaletteView *view,
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PikaPaletteEntry *entry,
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const PikaRGB *color,
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PikaColormapSelection *selection);
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static void pika_colormap_adjustment_changed (GtkAdjustment *adjustment,
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PikaColormapSelection *selection);
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static void pika_colormap_hex_entry_changed (PikaColorHexEntry *entry,
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PikaColormapSelection *selection);
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static void pika_colormap_selection_set_context (PikaColormapSelection *selection,
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PikaContext *context);
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static void pika_colormap_selection_image_changed (PikaColormapSelection *selection,
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PikaImage *image);
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static void pika_colormap_selection_set_palette (PikaColormapSelection *selection);
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G_DEFINE_TYPE (PikaColormapSelection, pika_colormap_selection, GTK_TYPE_BOX)
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#define parent_class pika_colormap_selection_parent_class
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static guint signals[LAST_SIGNAL] = { 0 };
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static void
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pika_colormap_selection_class_init (PikaColormapSelectionClass* klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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signals[COLOR_CLICKED] =
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g_signal_new ("color-clicked",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (PikaColormapSelectionClass, color_clicked),
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NULL, NULL,
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pika_marshal_VOID__POINTER_ENUM,
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G_TYPE_NONE, 2,
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G_TYPE_POINTER,
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GDK_TYPE_MODIFIER_TYPE);
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signals[COLOR_ACTIVATED] =
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g_signal_new ("color-activated",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (PikaColormapSelectionClass, color_activated),
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NULL, NULL, NULL,
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G_TYPE_NONE, 1,
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G_TYPE_POINTER);
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object_class->set_property = pika_colormap_selection_set_property;
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object_class->get_property = pika_colormap_selection_get_property;
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object_class->dispose = pika_colormap_selection_dispose;
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object_class->finalize = pika_colormap_selection_finalize;
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widget_class->unmap = pika_colormap_selection_unmap;
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g_object_class_install_property (object_class, PROP_CONTEXT,
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g_param_spec_object ("context",
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NULL, NULL,
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PIKA_TYPE_CONTEXT,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_INDEX,
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g_param_spec_int ("index", NULL, NULL,
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0, G_MAXINT, 0,
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PIKA_PARAM_READABLE));
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}
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static void
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pika_colormap_selection_init (PikaColormapSelection *selection)
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{
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GtkWidget *frame;
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GtkWidget *grid;
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gtk_box_set_homogeneous (GTK_BOX (selection), FALSE);
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/* Main colormap frame. */
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frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
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gtk_box_pack_start (GTK_BOX (selection), frame, TRUE, TRUE, 0);
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gtk_widget_show (frame);
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selection->view = pika_view_new_full_by_types (NULL,
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PIKA_TYPE_PALETTE_VIEW,
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PIKA_TYPE_PALETTE,
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1, 1, 0,
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FALSE, TRUE, FALSE);
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pika_view_set_expand (PIKA_VIEW (selection->view), TRUE);
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gtk_container_add (GTK_CONTAINER (frame), selection->view);
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gtk_widget_show (selection->view);
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g_signal_connect (selection->view, "draw",
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G_CALLBACK (pika_colormap_selection_preview_draw),
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selection);
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g_signal_connect (selection->view, "entry-clicked",
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G_CALLBACK (pika_colormap_selection_entry_clicked),
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selection);
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g_signal_connect (selection->view, "entry-selected",
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G_CALLBACK (pika_colormap_selection_entry_selected),
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selection);
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g_signal_connect (selection->view, "entry-activated",
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G_CALLBACK (pika_colormap_selection_entry_activated),
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selection);
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g_signal_connect (selection->view, "color-dropped",
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G_CALLBACK (pika_colormap_selection_color_dropped),
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selection);
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/* Bottom horizontal box for additional widgets. */
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selection->right_vbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
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gtk_box_set_homogeneous (GTK_BOX (selection->right_vbox), TRUE);
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gtk_box_pack_end (GTK_BOX (selection), selection->right_vbox,
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FALSE, FALSE, 0);
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gtk_widget_show (selection->right_vbox);
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/* Some helpful hints */
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grid = gtk_grid_new ();
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gtk_grid_set_column_spacing (GTK_GRID (grid), 4);
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gtk_grid_set_row_spacing (GTK_GRID (grid), 2);
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gtk_box_pack_end (GTK_BOX (selection), grid, FALSE, FALSE, 0);
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gtk_widget_show (grid);
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selection->index_adjustment = (GtkAdjustment *)
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gtk_adjustment_new (0, 0, 0, 1, 10, 0);
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selection->index_spinbutton = pika_spin_button_new (selection->index_adjustment,
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1.0, 0);
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gtk_widget_set_halign (selection->index_spinbutton, GTK_ALIGN_START);
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gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (selection->index_spinbutton),
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TRUE);
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pika_grid_attach_aligned (GTK_GRID (grid), 0, 0,
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_("Color index:"), 0.0, 0.5,
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selection->index_spinbutton, 1);
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g_signal_connect (selection->index_adjustment, "value-changed",
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G_CALLBACK (pika_colormap_adjustment_changed),
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selection);
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selection->color_entry = pika_color_hex_entry_new ();
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gtk_widget_set_halign (selection->color_entry, GTK_ALIGN_START);
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pika_grid_attach_aligned (GTK_GRID (grid), 0, 1,
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_("HTML notation:"), 0.0, 0.5,
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selection->color_entry, 1);
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g_signal_connect (selection->color_entry, "color-changed",
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G_CALLBACK (pika_colormap_hex_entry_changed),
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selection);
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}
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static void
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pika_colormap_selection_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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PikaColormapSelection *selection = PIKA_COLORMAP_SELECTION (object);
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switch (property_id)
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{
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case PROP_CONTEXT:
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pika_colormap_selection_set_context (selection, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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pika_colormap_selection_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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PikaColormapSelection *selection = PIKA_COLORMAP_SELECTION (object);
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switch (property_id)
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{
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case PROP_CONTEXT:
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g_value_set_object (value, selection->context);
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break;
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case PROP_INDEX:
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g_value_set_int (value, selection->col_index);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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pika_colormap_selection_dispose (GObject *object)
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{
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PikaColormapSelection *selection = PIKA_COLORMAP_SELECTION (object);
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g_clear_pointer (&selection->color_dialog, gtk_widget_destroy);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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pika_colormap_selection_finalize (GObject *object)
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{
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PikaColormapSelection *selection = PIKA_COLORMAP_SELECTION (object);
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if (selection->context)
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{
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g_signal_handlers_disconnect_by_func (selection->context,
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gtk_widget_queue_draw,
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selection);
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g_signal_handlers_disconnect_by_func (selection->context,
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G_CALLBACK (pika_colormap_selection_image_changed),
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selection);
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}
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if (selection->active_image)
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{
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g_signal_handlers_disconnect_by_func (selection->active_image,
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G_CALLBACK (gtk_widget_queue_draw),
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selection);
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g_signal_handlers_disconnect_by_func (selection->active_image,
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G_CALLBACK (pika_colormap_selection_set_palette),
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selection);
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}
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if (selection->active_palette)
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{
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g_signal_handlers_disconnect_by_func (selection->active_palette,
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G_CALLBACK (gtk_widget_queue_draw),
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selection);
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}
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g_clear_object (&selection->layout);
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g_clear_object (&selection->context);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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pika_colormap_selection_unmap (GtkWidget *widget)
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{
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PikaColormapSelection *selection = PIKA_COLORMAP_SELECTION (widget);
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if (selection->color_dialog)
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gtk_widget_hide (selection->color_dialog);
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GTK_WIDGET_CLASS (parent_class)->unmap (widget);
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}
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/* public functions */
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GtkWidget *
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pika_colormap_selection_new (PikaContext *context)
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{
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g_return_val_if_fail (PIKA_IS_CONTEXT (context), NULL);
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return g_object_new (PIKA_TYPE_COLORMAP_SELECTION,
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"context", context,
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"orientation", GTK_ORIENTATION_VERTICAL,
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NULL);
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}
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gint
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pika_colormap_selection_get_index (PikaColormapSelection *selection,
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const PikaRGB *search)
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{
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PikaImage *image;
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gint index;
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g_return_val_if_fail (PIKA_IS_COLORMAP_SELECTION (selection), 0);
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image = pika_context_get_image (selection->context);
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if (! HAVE_COLORMAP (image))
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return -1;
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index = selection->col_index;
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if (search)
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{
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PikaRGB temp;
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pika_image_get_colormap_entry (image, index, &temp);
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if (pika_rgb_distance (&temp, search) > RGB_EPSILON)
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{
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gint n_colors = pika_image_get_colormap_size (image);
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gint i;
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for (i = 0; i < n_colors; i++)
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{
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pika_image_get_colormap_entry (image, i, &temp);
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if (pika_rgb_distance (&temp, search) < RGB_EPSILON)
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{
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index = i;
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break;
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}
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}
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}
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}
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return index;
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}
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gboolean
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pika_colormap_selection_set_index (PikaColormapSelection *selection,
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gint index,
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PikaRGB *color)
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{
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PikaImage *image;
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gint size;
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g_return_val_if_fail (PIKA_IS_COLORMAP_SELECTION (selection), FALSE);
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image = pika_context_get_image (selection->context);
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if (! HAVE_COLORMAP (image))
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return FALSE;
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size = pika_image_get_colormap_size (image);
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if (size < 1)
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return FALSE;
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index = CLAMP (index, 0, size - 1);
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if (index != selection->col_index)
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{
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PikaPalette *palette = pika_image_get_colormap_palette (image);
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selection->col_index = index;
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g_object_notify (G_OBJECT (selection), "index");
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pika_palette_view_select_entry (PIKA_PALETTE_VIEW (selection->view),
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pika_palette_get_entry (palette, index));
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pika_colormap_selection_update_entries (selection);
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}
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if (color)
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pika_image_get_colormap_entry (image, index, color);
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return TRUE;
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}
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gint
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pika_colormap_selection_max_index (PikaColormapSelection *selection)
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{
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PikaImage *image;
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g_return_val_if_fail (PIKA_IS_COLORMAP_SELECTION (selection), -1);
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image = pika_context_get_image (selection->context);
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if (! HAVE_COLORMAP (image))
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return -1;
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return MAX (0, pika_image_get_colormap_size (image) - 1);
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}
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PikaPaletteEntry *
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pika_colormap_selection_get_selected_entry (PikaColormapSelection *selection)
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{
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g_return_val_if_fail (PIKA_IS_COLORMAP_SELECTION (selection), NULL);
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return pika_palette_view_get_selected_entry (PIKA_PALETTE_VIEW (selection->view));
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}
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|
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void
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pika_colormap_selection_get_entry_rect (PikaColormapSelection *selection,
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PikaPaletteEntry *entry,
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GdkRectangle *rect)
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{
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GtkAllocation allocation;
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g_return_if_fail (PIKA_IS_COLORMAP_SELECTION (selection));
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g_return_if_fail (entry);
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g_return_if_fail (rect);
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pika_palette_view_get_entry_rect (PIKA_PALETTE_VIEW (selection->view),
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entry, rect);
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gtk_widget_get_allocation (GTK_WIDGET (selection), &allocation);
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/* rect->x += allocation.x; */
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/* rect->y += allocation.y; */
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}
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|
|
|
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/* private functions */
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|
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static PangoLayout *
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pika_colormap_selection_create_layout (GtkWidget *widget)
|
|
{
|
|
PangoLayout *layout;
|
|
PangoAttrList *attrs;
|
|
PangoAttribute *attr;
|
|
|
|
layout = gtk_widget_create_pango_layout (widget,
|
|
_("Only indexed images have "
|
|
"a colormap."));
|
|
|
|
pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
|
|
|
|
attrs = pango_attr_list_new ();
|
|
|
|
attr = pango_attr_style_new (PANGO_STYLE_ITALIC);
|
|
attr->start_index = 0;
|
|
attr->end_index = -1;
|
|
pango_attr_list_insert (attrs, attr);
|
|
|
|
pango_layout_set_attributes (layout, attrs);
|
|
pango_attr_list_unref (attrs);
|
|
|
|
return layout;
|
|
}
|
|
|
|
static gboolean
|
|
pika_colormap_selection_preview_draw (GtkWidget *widget,
|
|
cairo_t *cr,
|
|
PikaColormapSelection *selection)
|
|
{
|
|
GtkStyleContext *style = gtk_widget_get_style_context (widget);
|
|
PikaImage *image;
|
|
GtkAllocation allocation;
|
|
GdkRGBA color;
|
|
gint width, height;
|
|
gint y;
|
|
|
|
image = pika_context_get_image (selection->context);
|
|
|
|
if (image == NULL || pika_image_get_base_type (image) == PIKA_INDEXED)
|
|
return FALSE;
|
|
|
|
gtk_style_context_get_color (style, gtk_widget_get_state_flags (widget),
|
|
&color);
|
|
gdk_cairo_set_source_rgba (cr, &color);
|
|
|
|
gtk_widget_get_allocation (widget, &allocation);
|
|
|
|
if (! selection->layout)
|
|
selection->layout = pika_colormap_selection_create_layout (selection->view);
|
|
|
|
pango_layout_set_width (selection->layout,
|
|
PANGO_SCALE * (allocation.width - 2 * BORDER));
|
|
|
|
pango_layout_get_pixel_size (selection->layout, &width, &height);
|
|
|
|
y = (allocation.height - height) / 2;
|
|
|
|
cairo_move_to (cr, BORDER, MAX (y, 0));
|
|
pango_cairo_show_layout (cr, selection->layout);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
pika_colormap_selection_update_entries (PikaColormapSelection *selection)
|
|
{
|
|
PikaImage *image = pika_context_get_image (selection->context);
|
|
|
|
if (! HAVE_COLORMAP (image) ||
|
|
! pika_image_get_colormap_size (image))
|
|
{
|
|
gtk_widget_set_sensitive (selection->index_spinbutton, FALSE);
|
|
gtk_widget_set_sensitive (selection->color_entry, FALSE);
|
|
|
|
gtk_adjustment_set_value (selection->index_adjustment, 0);
|
|
gtk_entry_set_text (GTK_ENTRY (selection->color_entry), "");
|
|
}
|
|
else
|
|
{
|
|
PikaRGB color;
|
|
guchar r, g, b;
|
|
gchar *string;
|
|
|
|
gtk_adjustment_set_value (selection->index_adjustment,
|
|
selection->col_index);
|
|
pika_image_get_colormap_entry (image, selection->col_index, &color);
|
|
pika_rgb_get_uchar (&color, &r, &g, &b);
|
|
|
|
string = g_strdup_printf ("%02x%02x%02x", r, g, b);
|
|
gtk_entry_set_text (GTK_ENTRY (selection->color_entry), string);
|
|
g_free (string);
|
|
|
|
gtk_widget_set_sensitive (selection->index_spinbutton, TRUE);
|
|
gtk_widget_set_sensitive (selection->color_entry, TRUE);
|
|
}
|
|
}
|
|
|
|
static void
|
|
pika_colormap_selection_entry_clicked (PikaPaletteView *view,
|
|
PikaPaletteEntry *entry,
|
|
GdkModifierType state,
|
|
PikaColormapSelection *selection)
|
|
{
|
|
PikaPalette *palette;
|
|
gint index;
|
|
|
|
palette = pika_image_get_colormap_palette (selection->active_image);
|
|
index = pika_palette_get_entry_position (palette, entry);
|
|
pika_colormap_selection_set_index (selection, index, NULL);
|
|
|
|
g_signal_emit (selection, signals[COLOR_CLICKED], 0, entry, state);
|
|
}
|
|
|
|
static void
|
|
pika_colormap_selection_entry_selected (PikaPaletteView *view,
|
|
PikaPaletteEntry *entry,
|
|
PikaColormapSelection *selection)
|
|
{
|
|
PikaPalette *palette;
|
|
gint index = 0;
|
|
|
|
palette = pika_image_get_colormap_palette (selection->active_image);
|
|
if (entry)
|
|
index = pika_palette_get_entry_position (palette, entry);
|
|
|
|
pika_colormap_selection_set_index (selection, index, NULL);
|
|
}
|
|
|
|
static void
|
|
pika_colormap_selection_entry_activated (PikaPaletteView *view,
|
|
PikaPaletteEntry *entry,
|
|
PikaColormapSelection *selection)
|
|
{
|
|
PikaPalette *palette;
|
|
gint index;
|
|
|
|
palette = pika_image_get_colormap_palette (selection->active_image);
|
|
index = pika_palette_get_entry_position (palette, entry);
|
|
pika_colormap_selection_set_index (selection, index, NULL);
|
|
|
|
g_signal_emit (selection, signals[COLOR_ACTIVATED], 0, entry);
|
|
}
|
|
|
|
static void
|
|
pika_colormap_selection_color_dropped (PikaPaletteView *view,
|
|
PikaPaletteEntry *entry,
|
|
const PikaRGB *color,
|
|
PikaColormapSelection *selection)
|
|
{
|
|
}
|
|
|
|
static void
|
|
pika_colormap_adjustment_changed (GtkAdjustment *adjustment,
|
|
PikaColormapSelection *selection)
|
|
{
|
|
PikaImage *image = pika_context_get_image (selection->context);
|
|
|
|
if (HAVE_COLORMAP (image))
|
|
{
|
|
gint index = ROUND (gtk_adjustment_get_value (adjustment));
|
|
|
|
pika_colormap_selection_set_index (selection, index, NULL);
|
|
|
|
pika_colormap_selection_update_entries (selection);
|
|
}
|
|
}
|
|
|
|
static void
|
|
pika_colormap_hex_entry_changed (PikaColorHexEntry *entry,
|
|
PikaColormapSelection *selection)
|
|
{
|
|
PikaImage *image = pika_context_get_image (selection->context);
|
|
|
|
if (image)
|
|
{
|
|
PikaRGB color;
|
|
|
|
pika_color_hex_entry_get_color (entry, &color);
|
|
|
|
pika_image_set_colormap_entry (image, selection->col_index, &color, TRUE);
|
|
pika_image_flush (image);
|
|
}
|
|
}
|
|
|
|
static void
|
|
pika_colormap_selection_set_context (PikaColormapSelection *selection,
|
|
PikaContext *context)
|
|
{
|
|
g_return_if_fail (PIKA_IS_COLORMAP_SELECTION (selection));
|
|
g_return_if_fail (context == NULL || PIKA_IS_CONTEXT (context));
|
|
|
|
if (context != selection->context)
|
|
{
|
|
if (selection->context)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (selection->context,
|
|
gtk_widget_queue_draw,
|
|
selection);
|
|
g_signal_handlers_disconnect_by_func (selection->context,
|
|
G_CALLBACK (pika_colormap_selection_image_changed),
|
|
selection);
|
|
g_object_unref (selection->context);
|
|
}
|
|
|
|
selection->context = context;
|
|
|
|
if (context)
|
|
{
|
|
g_object_ref (context);
|
|
|
|
g_signal_connect_swapped (context, "foreground-changed",
|
|
G_CALLBACK (gtk_widget_queue_draw),
|
|
selection);
|
|
g_signal_connect_swapped (context, "background-changed",
|
|
G_CALLBACK (gtk_widget_queue_draw),
|
|
selection);
|
|
g_signal_connect_swapped (context, "image-changed",
|
|
G_CALLBACK (pika_colormap_selection_image_changed),
|
|
selection);
|
|
pika_colormap_selection_image_changed (selection, pika_context_get_image (context));
|
|
}
|
|
|
|
pika_view_renderer_set_context (PIKA_VIEW (selection->view)->renderer,
|
|
context);
|
|
g_object_notify (G_OBJECT (selection), "context");
|
|
}
|
|
}
|
|
|
|
static void
|
|
pika_colormap_selection_image_changed (PikaColormapSelection *selection,
|
|
PikaImage *image)
|
|
{
|
|
if (selection->active_image)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (selection->active_image,
|
|
G_CALLBACK (gtk_widget_queue_draw),
|
|
selection);
|
|
g_signal_handlers_disconnect_by_func (selection->active_image,
|
|
G_CALLBACK (pika_colormap_selection_set_palette),
|
|
selection);
|
|
if (pika_image_get_base_type (selection->active_image) == PIKA_INDEXED)
|
|
{
|
|
PikaPalette *palette;
|
|
|
|
palette = pika_image_get_colormap_palette (selection->active_image);
|
|
g_signal_handlers_disconnect_by_func (palette,
|
|
G_CALLBACK (gtk_widget_queue_draw),
|
|
selection);
|
|
}
|
|
|
|
if (selection->color_dialog)
|
|
gtk_widget_hide (selection->color_dialog);
|
|
|
|
if (! HAVE_COLORMAP (image))
|
|
{
|
|
gtk_adjustment_set_upper (selection->index_adjustment, 0);
|
|
|
|
if (gtk_widget_get_mapped (GTK_WIDGET (selection)))
|
|
{
|
|
if (selection->active_palette)
|
|
g_signal_handlers_disconnect_by_func (selection->active_palette,
|
|
G_CALLBACK (gtk_widget_queue_draw),
|
|
selection);
|
|
pika_view_set_viewable (PIKA_VIEW (selection->view), NULL);
|
|
gtk_adjustment_set_upper (selection->index_adjustment, 0);
|
|
selection->active_palette = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
g_set_weak_pointer (&selection->active_image, image);
|
|
|
|
if (image)
|
|
{
|
|
g_signal_connect_swapped (image, "colormap-changed",
|
|
G_CALLBACK (gtk_widget_queue_draw),
|
|
selection);
|
|
g_signal_connect_swapped (image, "mode-changed",
|
|
G_CALLBACK (pika_colormap_selection_set_palette),
|
|
selection);
|
|
}
|
|
|
|
pika_colormap_selection_set_palette (selection);
|
|
gtk_widget_queue_draw (GTK_WIDGET (selection));
|
|
}
|
|
|
|
static void
|
|
pika_colormap_selection_set_palette (PikaColormapSelection *selection)
|
|
{
|
|
PikaPalette *palette = NULL;
|
|
|
|
if (selection->active_image)
|
|
palette = pika_image_get_colormap_palette (selection->active_image);
|
|
|
|
if (palette != selection->active_palette)
|
|
{
|
|
if (selection->active_palette)
|
|
{
|
|
pika_colormap_selection_set_index (selection, 0, NULL);
|
|
|
|
g_signal_handlers_disconnect_by_func (selection->active_palette,
|
|
G_CALLBACK (gtk_widget_queue_draw),
|
|
selection);
|
|
pika_view_set_viewable (PIKA_VIEW (selection->view), NULL);
|
|
gtk_adjustment_set_upper (selection->index_adjustment, 0);
|
|
}
|
|
|
|
g_set_weak_pointer (&selection->active_palette, palette);
|
|
|
|
if (palette)
|
|
{
|
|
g_signal_connect_swapped (palette, "dirty",
|
|
G_CALLBACK (gtk_widget_queue_draw),
|
|
selection);
|
|
pika_view_set_viewable (PIKA_VIEW (selection->view),
|
|
PIKA_VIEWABLE (palette));
|
|
gtk_adjustment_set_upper (selection->index_adjustment,
|
|
pika_image_get_colormap_size (selection->active_image) - 1);
|
|
}
|
|
}
|
|
}
|
