mirror of https://github.com/GNOME/gimp.git
569 lines
17 KiB
C
569 lines
17 KiB
C
/* The GIMP -- an image manipulation program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimppaletteview.c
|
|
* Copyright (C) 2005 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 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 <gtk/gtk.h>
|
|
#include <gdk/gdkkeysyms.h>
|
|
|
|
#include "libgimpcolor/gimpcolor.h"
|
|
|
|
#include "widgets-types.h"
|
|
|
|
#include "core/gimppalette.h"
|
|
#include "core/gimpmarshal.h"
|
|
|
|
#include "gimpdnd.h"
|
|
#include "gimppaletteview.h"
|
|
#include "gimpviewrendererpalette.h"
|
|
|
|
|
|
enum
|
|
{
|
|
ENTRY_CLICKED,
|
|
ENTRY_SELECTED,
|
|
ENTRY_ACTIVATED,
|
|
ENTRY_CONTEXT,
|
|
COLOR_DROPPED,
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
|
|
static void gimp_palette_view_class_init (GimpPaletteViewClass *klass);
|
|
static void gimp_palette_view_init (GimpPaletteView *view);
|
|
|
|
static void gimp_palette_view_realize (GtkWidget *widget);
|
|
static void gimp_palette_view_unrealize (GtkWidget *widget);
|
|
static gboolean gimp_palette_view_expose (GtkWidget *widget,
|
|
GdkEventExpose *eevent);
|
|
static gboolean gimp_palette_view_button_press (GtkWidget *widget,
|
|
GdkEventButton *bevent);
|
|
static gboolean gimp_palette_view_key_press (GtkWidget *widget,
|
|
GdkEventKey *kevent);
|
|
static gboolean gimp_palette_view_focus (GtkWidget *widget,
|
|
GtkDirectionType direction);
|
|
static void gimp_palette_view_set_viewable (GimpView *view,
|
|
GimpViewable *old_viewable,
|
|
GimpViewable *new_viewable);
|
|
static GimpPaletteEntry *
|
|
gimp_palette_view_find_entry (GimpPaletteView *view,
|
|
gint x,
|
|
gint y);
|
|
static void gimp_palette_view_expose_entry (GimpPaletteView *view,
|
|
GimpPaletteEntry *entry);
|
|
static void gimp_palette_view_draw_selected (GimpPaletteView *view,
|
|
GdkRectangle *area);
|
|
static void gimp_palette_view_invalidate (GimpPalette *palette,
|
|
GimpPaletteView *view);
|
|
static void gimp_palette_view_drag_color (GtkWidget *widget,
|
|
GimpRGB *color,
|
|
gpointer data);
|
|
static void gimp_palette_view_drop_color (GtkWidget *widget,
|
|
gint x,
|
|
gint y,
|
|
const GimpRGB *color,
|
|
gpointer data);
|
|
|
|
|
|
static guint view_signals[LAST_SIGNAL] = { 0 };
|
|
|
|
static GimpViewClass *parent_class = NULL;
|
|
|
|
|
|
GType
|
|
gimp_palette_view_get_type (void)
|
|
{
|
|
static GType view_type = 0;
|
|
|
|
if (! view_type)
|
|
{
|
|
static const GTypeInfo view_info =
|
|
{
|
|
sizeof (GimpPaletteViewClass),
|
|
NULL, /* base_init */
|
|
NULL, /* base_finalize */
|
|
(GClassInitFunc) gimp_palette_view_class_init,
|
|
NULL, /* class_finalize */
|
|
NULL, /* class_data */
|
|
sizeof (GimpPaletteView),
|
|
0, /* n_preallocs */
|
|
(GInstanceInitFunc) gimp_palette_view_init,
|
|
};
|
|
|
|
view_type = g_type_register_static (GIMP_TYPE_VIEW,
|
|
"GimpPaletteView",
|
|
&view_info, 0);
|
|
}
|
|
|
|
return view_type;
|
|
}
|
|
|
|
static void
|
|
gimp_palette_view_class_init (GimpPaletteViewClass *klass)
|
|
{
|
|
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
|
|
GimpViewClass *view_class = GIMP_VIEW_CLASS (klass);
|
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
|
|
view_signals[ENTRY_CLICKED] =
|
|
g_signal_new ("entry-clicked",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST,
|
|
G_STRUCT_OFFSET (GimpPaletteViewClass, entry_clicked),
|
|
NULL, NULL,
|
|
gimp_marshal_VOID__POINTER_ENUM,
|
|
G_TYPE_NONE, 2,
|
|
G_TYPE_POINTER,
|
|
GDK_TYPE_MODIFIER_TYPE);
|
|
|
|
view_signals[ENTRY_SELECTED] =
|
|
g_signal_new ("entry-selected",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST,
|
|
G_STRUCT_OFFSET (GimpPaletteViewClass, entry_selected),
|
|
NULL, NULL,
|
|
gimp_marshal_VOID__POINTER,
|
|
G_TYPE_NONE, 1,
|
|
G_TYPE_POINTER);
|
|
|
|
view_signals[ENTRY_ACTIVATED] =
|
|
g_signal_new ("entry-activated",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST,
|
|
G_STRUCT_OFFSET (GimpPaletteViewClass, entry_activated),
|
|
NULL, NULL,
|
|
gimp_marshal_VOID__POINTER,
|
|
G_TYPE_NONE, 1,
|
|
G_TYPE_POINTER);
|
|
|
|
view_signals[ENTRY_CONTEXT] =
|
|
g_signal_new ("entry-context",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST,
|
|
G_STRUCT_OFFSET (GimpPaletteViewClass, entry_context),
|
|
NULL, NULL,
|
|
gimp_marshal_VOID__POINTER,
|
|
G_TYPE_NONE, 1,
|
|
G_TYPE_POINTER);
|
|
|
|
view_signals[COLOR_DROPPED] =
|
|
g_signal_new ("color-dropped",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST,
|
|
G_STRUCT_OFFSET (GimpPaletteViewClass, color_dropped),
|
|
NULL, NULL,
|
|
gimp_marshal_VOID__POINTER_BOXED,
|
|
G_TYPE_NONE, 2,
|
|
G_TYPE_POINTER,
|
|
GIMP_TYPE_RGB);
|
|
|
|
widget_class->realize = gimp_palette_view_realize;
|
|
widget_class->unrealize = gimp_palette_view_unrealize;
|
|
widget_class->expose_event = gimp_palette_view_expose;
|
|
widget_class->button_press_event = gimp_palette_view_button_press;
|
|
widget_class->key_press_event = gimp_palette_view_key_press;
|
|
widget_class->focus = gimp_palette_view_focus;
|
|
|
|
view_class->set_viewable = gimp_palette_view_set_viewable;
|
|
}
|
|
|
|
static void
|
|
gimp_palette_view_init (GimpPaletteView *view)
|
|
{
|
|
GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
|
|
|
|
view->selected = NULL;
|
|
view->dnd_entry = NULL;
|
|
view->gc = NULL;
|
|
}
|
|
|
|
static void
|
|
gimp_palette_view_realize (GtkWidget *widget)
|
|
{
|
|
GimpPaletteView *view = GIMP_PALETTE_VIEW (widget);
|
|
|
|
GTK_WIDGET_CLASS (parent_class)->realize (widget);
|
|
|
|
view->gc = gdk_gc_new (widget->window);
|
|
|
|
gdk_gc_set_function (view->gc, GDK_INVERT);
|
|
gdk_gc_set_line_attributes (view->gc, 1,
|
|
GDK_LINE_SOLID, GDK_CAP_BUTT, GDK_JOIN_ROUND);
|
|
}
|
|
|
|
static void
|
|
gimp_palette_view_unrealize (GtkWidget *widget)
|
|
{
|
|
GimpPaletteView *view = GIMP_PALETTE_VIEW (widget);
|
|
|
|
if (view->gc)
|
|
{
|
|
g_object_unref (view->gc);
|
|
view->gc = NULL;
|
|
}
|
|
|
|
GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
|
|
}
|
|
|
|
static gboolean
|
|
gimp_palette_view_expose (GtkWidget *widget,
|
|
GdkEventExpose *eevent)
|
|
{
|
|
if (GTK_WIDGET_DRAWABLE (widget))
|
|
{
|
|
GimpPaletteView *view = GIMP_PALETTE_VIEW (widget);
|
|
|
|
GTK_WIDGET_CLASS (parent_class)->expose_event (widget, eevent);
|
|
|
|
if (view->selected)
|
|
gimp_palette_view_draw_selected (view, &eevent->area);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gimp_palette_view_button_press (GtkWidget *widget,
|
|
GdkEventButton *bevent)
|
|
{
|
|
GimpPaletteView *view = GIMP_PALETTE_VIEW (widget);
|
|
GimpPaletteEntry *entry;
|
|
|
|
if (GTK_WIDGET_CAN_FOCUS (widget) && ! GTK_WIDGET_HAS_FOCUS (widget))
|
|
gtk_widget_grab_focus (widget);
|
|
|
|
entry = gimp_palette_view_find_entry (view, bevent->x, bevent->y);
|
|
|
|
view->dnd_entry = entry;
|
|
|
|
if (! entry || bevent->button == 2)
|
|
return FALSE;
|
|
|
|
if (bevent->type == GDK_BUTTON_PRESS)
|
|
g_signal_emit (view, view_signals[ENTRY_CLICKED], 0,
|
|
entry, bevent->state);
|
|
|
|
switch (bevent->button)
|
|
{
|
|
case 1:
|
|
if (bevent->type == GDK_BUTTON_PRESS)
|
|
{
|
|
gimp_palette_view_select_entry (view, entry);
|
|
}
|
|
else if (bevent->type == GDK_2BUTTON_PRESS && entry == view->selected)
|
|
{
|
|
g_signal_emit (view, view_signals[ENTRY_ACTIVATED], 0, entry);
|
|
}
|
|
break;
|
|
|
|
case 3:
|
|
if (bevent->type == GDK_BUTTON_PRESS)
|
|
{
|
|
if (entry != view->selected)
|
|
gimp_palette_view_select_entry (view, entry);
|
|
|
|
g_signal_emit (view, view_signals[ENTRY_CONTEXT], 0, entry);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gimp_palette_view_key_press (GtkWidget *widget,
|
|
GdkEventKey *kevent)
|
|
{
|
|
GimpPaletteView *view = GIMP_PALETTE_VIEW (widget);
|
|
|
|
if (view->selected &&
|
|
(kevent->keyval == GDK_space ||
|
|
kevent->keyval == GDK_Return ||
|
|
kevent->keyval == GDK_KP_Enter))
|
|
{
|
|
g_signal_emit (view, view_signals[ENTRY_CLICKED], 0,
|
|
view->selected, kevent->state);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gimp_palette_view_focus (GtkWidget *widget,
|
|
GtkDirectionType direction)
|
|
{
|
|
GimpPaletteView *view = GIMP_PALETTE_VIEW (widget);
|
|
GimpPalette *palette;
|
|
|
|
palette = GIMP_PALETTE (GIMP_VIEW (view)->renderer->viewable);
|
|
|
|
if (GTK_WIDGET_CAN_FOCUS (widget) && ! GTK_WIDGET_HAS_FOCUS (widget))
|
|
{
|
|
gtk_widget_grab_focus (widget);
|
|
|
|
if (! view->selected && palette->colors)
|
|
gimp_palette_view_select_entry (view, palette->colors->data);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
if (view->selected)
|
|
{
|
|
GimpViewRendererPalette *renderer;
|
|
gint skip = 0;
|
|
|
|
renderer = GIMP_VIEW_RENDERER_PALETTE (GIMP_VIEW (view)->renderer);
|
|
|
|
switch (direction)
|
|
{
|
|
case GTK_DIR_UP:
|
|
skip = -renderer->columns;
|
|
break;
|
|
case GTK_DIR_DOWN:
|
|
skip = renderer->columns;
|
|
break;
|
|
case GTK_DIR_LEFT:
|
|
skip = -1;
|
|
break;
|
|
case GTK_DIR_RIGHT:
|
|
skip = 1;
|
|
break;
|
|
|
|
case GTK_DIR_TAB_FORWARD:
|
|
case GTK_DIR_TAB_BACKWARD:
|
|
return FALSE;
|
|
}
|
|
|
|
if (skip != 0)
|
|
{
|
|
GimpPaletteEntry *entry;
|
|
gint position;
|
|
|
|
position = view->selected->position + skip;
|
|
|
|
entry = g_list_nth_data (palette->colors, position);
|
|
|
|
if (entry)
|
|
gimp_palette_view_select_entry (view, entry);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gimp_palette_view_set_viewable (GimpView *view,
|
|
GimpViewable *old_viewable,
|
|
GimpViewable *new_viewable)
|
|
{
|
|
GimpPaletteView *pal_view = GIMP_PALETTE_VIEW (view);
|
|
|
|
pal_view->dnd_entry = NULL;
|
|
gimp_palette_view_select_entry (pal_view, NULL);
|
|
|
|
if (old_viewable)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (old_viewable,
|
|
gimp_palette_view_invalidate,
|
|
view);
|
|
|
|
if (! new_viewable)
|
|
{
|
|
gimp_dnd_color_source_remove (GTK_WIDGET (view));
|
|
gimp_dnd_color_dest_remove (GTK_WIDGET (view));
|
|
}
|
|
}
|
|
|
|
GIMP_VIEW_CLASS (parent_class)->set_viewable (view,
|
|
old_viewable, new_viewable);
|
|
|
|
if (new_viewable)
|
|
{
|
|
g_signal_connect (new_viewable, "invalidate-preview",
|
|
G_CALLBACK (gimp_palette_view_invalidate),
|
|
view);
|
|
|
|
/* unset the palette drag handler set by GimpView */
|
|
gimp_dnd_viewable_source_remove (GTK_WIDGET (view), GIMP_TYPE_PALETTE);
|
|
|
|
if (! old_viewable)
|
|
{
|
|
gimp_dnd_color_source_add (GTK_WIDGET (view),
|
|
gimp_palette_view_drag_color,
|
|
view);
|
|
gimp_dnd_color_dest_add (GTK_WIDGET (view),
|
|
gimp_palette_view_drop_color,
|
|
view);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* public functions */
|
|
|
|
void
|
|
gimp_palette_view_select_entry (GimpPaletteView *view,
|
|
GimpPaletteEntry *entry)
|
|
{
|
|
g_return_if_fail (GIMP_IS_PALETTE_VIEW (view));
|
|
|
|
if (entry == view->selected)
|
|
return;
|
|
|
|
if (view->selected)
|
|
gimp_palette_view_expose_entry (view, view->selected);
|
|
|
|
view->selected = entry;
|
|
|
|
if (view->selected)
|
|
gimp_palette_view_expose_entry (view, view->selected);
|
|
|
|
g_signal_emit (view, view_signals[ENTRY_SELECTED], 0, view->selected);
|
|
}
|
|
|
|
|
|
/* private funcions */
|
|
|
|
static GimpPaletteEntry *
|
|
gimp_palette_view_find_entry (GimpPaletteView *view,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GimpViewRendererPalette *renderer;
|
|
GimpPaletteEntry *entry = NULL;
|
|
gint col, row;
|
|
|
|
renderer = GIMP_VIEW_RENDERER_PALETTE (GIMP_VIEW (view)->renderer);
|
|
|
|
col = x / renderer->cell_width;
|
|
row = y / renderer->cell_height;
|
|
|
|
if (col >= 0 && col < renderer->columns &&
|
|
row >= 0 && row < renderer->rows)
|
|
{
|
|
GimpPalette *palette;
|
|
|
|
palette = GIMP_PALETTE (GIMP_VIEW (view)->renderer->viewable);
|
|
|
|
entry = g_list_nth_data (palette->colors,
|
|
row * renderer->columns + col);
|
|
}
|
|
|
|
return entry;
|
|
}
|
|
|
|
static void
|
|
gimp_palette_view_expose_entry (GimpPaletteView *view,
|
|
GimpPaletteEntry *entry)
|
|
{
|
|
GimpViewRendererPalette *renderer;
|
|
gint row, col;
|
|
GtkWidget *widget = GTK_WIDGET (view);
|
|
|
|
renderer = GIMP_VIEW_RENDERER_PALETTE (GIMP_VIEW (view)->renderer);
|
|
|
|
row = entry->position / renderer->columns;
|
|
col = entry->position % renderer->columns;
|
|
|
|
gtk_widget_queue_draw_area (GTK_WIDGET (view),
|
|
widget->allocation.x + col * renderer->cell_width,
|
|
widget->allocation.y + row * renderer->cell_height,
|
|
renderer->cell_width + 1,
|
|
renderer->cell_height + 1);
|
|
}
|
|
|
|
static void
|
|
gimp_palette_view_draw_selected (GimpPaletteView *pal_view,
|
|
GdkRectangle *area)
|
|
{
|
|
GimpView *view = GIMP_VIEW (pal_view);
|
|
|
|
if (view->renderer->viewable && pal_view->selected)
|
|
{
|
|
GtkWidget *widget = GTK_WIDGET (view);
|
|
GimpViewRendererPalette *renderer;
|
|
gint row, col;
|
|
|
|
renderer = GIMP_VIEW_RENDERER_PALETTE (view->renderer);
|
|
|
|
row = pal_view->selected->position / renderer->columns;
|
|
col = pal_view->selected->position % renderer->columns;
|
|
|
|
if (area)
|
|
gdk_gc_set_clip_rectangle (pal_view->gc, area);
|
|
|
|
gdk_draw_rectangle (widget->window, pal_view->gc,
|
|
FALSE,
|
|
widget->allocation.x + col * renderer->cell_width,
|
|
widget->allocation.y + row * renderer->cell_height,
|
|
renderer->cell_width,
|
|
renderer->cell_height);
|
|
|
|
if (area)
|
|
gdk_gc_set_clip_rectangle (pal_view->gc, NULL);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_palette_view_invalidate (GimpPalette *palette,
|
|
GimpPaletteView *view)
|
|
{
|
|
view->dnd_entry = NULL;
|
|
|
|
if (view->selected && ! g_list_find (palette->colors, view->selected))
|
|
gimp_palette_view_select_entry (view, NULL);
|
|
}
|
|
|
|
static void
|
|
gimp_palette_view_drag_color (GtkWidget *widget,
|
|
GimpRGB *color,
|
|
gpointer data)
|
|
{
|
|
GimpPaletteView *view = GIMP_PALETTE_VIEW (data);
|
|
|
|
if (view->dnd_entry)
|
|
*color = view->dnd_entry->color;
|
|
else
|
|
gimp_rgba_set (color, 0.0, 0.0, 0.0, 1.0);
|
|
}
|
|
|
|
static void
|
|
gimp_palette_view_drop_color (GtkWidget *widget,
|
|
gint x,
|
|
gint y,
|
|
const GimpRGB *color,
|
|
gpointer data)
|
|
{
|
|
GimpPaletteView *view = GIMP_PALETTE_VIEW (data);
|
|
GimpPaletteEntry *entry;
|
|
|
|
entry = gimp_palette_view_find_entry (view, x, y);
|
|
|
|
g_signal_emit (view, view_signals[COLOR_DROPPED], 0,
|
|
entry, color);
|
|
}
|