gimp/app/tools/gimpinktool.c

152 lines
5.3 KiB
C

/* GIMP - The GNU 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 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "operations/layer-modes/gimp-layer-modes.h"
#include "paint/gimpinkoptions.h"
#include "widgets/gimphelp-ids.h"
#include "gimpinkoptions-gui.h"
#include "gimpinktool.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
static GimpCanvasItem * gimp_ink_tool_get_outline (GimpPaintTool *paint_tool,
GimpDisplay *display,
gdouble x,
gdouble y);
static gboolean gimp_ink_tool_is_alpha_only (GimpPaintTool *paint_tool,
GimpDrawable *drawable);
static void gimp_ink_tool_options_notify (GimpTool *tool,
GimpToolOptions *options,
const GParamSpec *pspec);
G_DEFINE_TYPE (GimpInkTool, gimp_ink_tool, GIMP_TYPE_PAINT_TOOL)
#define parent_class gimp_ink_tool_parent_class
void
gimp_ink_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_INK_TOOL,
GIMP_TYPE_INK_OPTIONS,
gimp_ink_options_gui,
GIMP_CONTEXT_PROP_MASK_FOREGROUND |
GIMP_CONTEXT_PROP_MASK_BACKGROUND |
GIMP_CONTEXT_PROP_MASK_OPACITY |
GIMP_CONTEXT_PROP_MASK_PAINT_MODE |
GIMP_CONTEXT_PROP_MASK_PATTERN |
GIMP_CONTEXT_PROP_MASK_EXPAND,
"gimp-ink-tool",
_("Ink"),
_("Ink Tool: Calligraphy-style painting"),
N_("In_k"), "K",
NULL, GIMP_HELP_TOOL_INK,
GIMP_ICON_TOOL_INK,
data);
}
static void
gimp_ink_tool_class_init (GimpInkToolClass *klass)
{
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpPaintToolClass *paint_tool_class = GIMP_PAINT_TOOL_CLASS (klass);
tool_class->options_notify = gimp_ink_tool_options_notify;
paint_tool_class->get_outline = gimp_ink_tool_get_outline;
paint_tool_class->is_alpha_only = gimp_ink_tool_is_alpha_only;
}
static void
gimp_ink_tool_init (GimpInkTool *ink_tool)
{
GimpTool *tool = GIMP_TOOL (ink_tool);
gimp_tool_control_set_tool_cursor (tool->control, GIMP_TOOL_CURSOR_INK);
gimp_tool_control_set_action_pixel_size (tool->control,
"tools-ink-blob-pixel-size-set");
gimp_tool_control_set_action_size (tool->control,
"tools-ink-blob-size-set");
gimp_tool_control_set_action_aspect (tool->control,
"tools-ink-blob-aspect-set");
gimp_tool_control_set_action_angle (tool->control,
"tools-ink-blob-angle-set");
gimp_paint_tool_enable_color_picker (GIMP_PAINT_TOOL (ink_tool),
GIMP_COLOR_PICK_TARGET_FOREGROUND);
}
static void
gimp_ink_tool_options_notify (GimpTool *tool,
GimpToolOptions *options,
const GParamSpec *pspec)
{
GIMP_TOOL_CLASS (parent_class)->options_notify (tool, options, pspec);
if (g_strcmp0 (pspec->name, "size") == 0 &&
GIMP_PAINT_TOOL (tool)->draw_brush)
{
/* This triggers a redraw of the tool pointer, especially useful
* here when we change the pen size with on-canvas interaction.
*/
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
}
static GimpCanvasItem *
gimp_ink_tool_get_outline (GimpPaintTool *paint_tool,
GimpDisplay *display,
gdouble x,
gdouble y)
{
GimpInkOptions *options = GIMP_INK_TOOL_GET_OPTIONS (paint_tool);
gimp_paint_tool_set_draw_circle (paint_tool, TRUE,
options->size);
return NULL;
}
static gboolean
gimp_ink_tool_is_alpha_only (GimpPaintTool *paint_tool,
GimpDrawable *drawable)
{
GimpPaintOptions *paint_options = GIMP_PAINT_TOOL_GET_OPTIONS (paint_tool);
GimpContext *context = GIMP_CONTEXT (paint_options);
GimpLayerMode paint_mode = gimp_context_get_paint_mode (context);
return gimp_layer_mode_is_alpha_only (paint_mode);
}