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Diffstat (limited to '')
| -rw-r--r-- | app/tools/gimpmybrushtool.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/app/tools/gimpmybrushtool.c b/app/tools/gimpmybrushtool.c new file mode 100644 index 0000000..4576b89 --- /dev/null +++ b/app/tools/gimpmybrushtool.c @@ -0,0 +1,169 @@ +/* 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 "libgimpmath/gimpmath.h" +#include "libgimpwidgets/gimpwidgets.h" + +#include "tools-types.h" + +#include "paint/gimpmybrushoptions.h" + +#include "display/gimpdisplay.h" +#include "display/gimpdisplayshell.h" +#include "display/gimpcanvasarc.h" + +#include "core/gimp.h" + +#include "widgets/gimphelp-ids.h" + +#include "gimpmybrushoptions-gui.h" +#include "gimpmybrushtool.h" +#include "gimptoolcontrol.h" +#include "core/gimpmybrush.h" + +#include "gimp-intl.h" + +G_DEFINE_TYPE (GimpMybrushTool, gimp_mybrush_tool, GIMP_TYPE_PAINT_TOOL) + +#define parent_class gimp_mybrush_tool_parent_class + + +static void gimp_mybrush_tool_options_notify (GimpTool *tool, + GimpToolOptions *options, + const GParamSpec *pspec); + +static GimpCanvasItem * gimp_mybrush_tool_get_outline (GimpPaintTool *paint_tool, + GimpDisplay *display, + gdouble x, + gdouble y); + + +void +gimp_mybrush_tool_register (GimpToolRegisterCallback callback, + gpointer data) +{ + (* callback) (GIMP_TYPE_MYBRUSH_TOOL, + GIMP_TYPE_MYBRUSH_OPTIONS, + gimp_mybrush_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_MYBRUSH, + "gimp-mypaint-brush-tool", + _("MyPaint Brush"), + _("MyPaint Brush Tool: Use MyPaint brushes in GIMP"), + N_("M_yPaint Brush"), "Y", + NULL, GIMP_HELP_TOOL_MYPAINT_BRUSH, + GIMP_ICON_TOOL_MYPAINT_BRUSH, + data); +} + +static void +gimp_mybrush_tool_class_init (GimpMybrushToolClass *klass) +{ + GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass); + GimpPaintToolClass *paint_tool_class = GIMP_PAINT_TOOL_CLASS (klass); + + tool_class->options_notify = gimp_mybrush_tool_options_notify; + + paint_tool_class->get_outline = gimp_mybrush_tool_get_outline; +} + +static void +gimp_mybrush_tool_init (GimpMybrushTool *mybrush_tool) +{ + GimpTool *tool = GIMP_TOOL (mybrush_tool); + + gimp_tool_control_set_tool_cursor (tool->control, GIMP_TOOL_CURSOR_INK); + gimp_tool_control_set_action_size (tool->control, + "tools/tools-mypaint-brush-radius-set"); + gimp_tool_control_set_action_hardness (tool->control, + "tools/tools-mypaint-brush-hardness-set"); + + gimp_paint_tool_enable_color_picker (GIMP_PAINT_TOOL (mybrush_tool), + GIMP_COLOR_PICK_TARGET_FOREGROUND); +} + +static void +gimp_mybrush_tool_options_notify (GimpTool *tool, + GimpToolOptions *options, + const GParamSpec *pspec) +{ + GIMP_TOOL_CLASS (parent_class)->options_notify (tool, options, pspec); + + if (! strcmp (pspec->name, "radius")) + { + gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool)); + gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool)); + } +} + +static GimpCanvasItem * +gimp_mybrush_tool_get_outline (GimpPaintTool *paint_tool, + GimpDisplay *display, + gdouble x, + gdouble y) +{ + GimpMybrushOptions *options = GIMP_MYBRUSH_TOOL_GET_OPTIONS (paint_tool); + GimpMybrush *brush = gimp_context_get_mybrush (GIMP_CONTEXT (options)); + GimpCanvasItem *item = NULL; + GimpDisplayShell *shell = gimp_display_get_shell (display); + + gdouble radius = exp (options->radius) + 2 * options->radius * gimp_mybrush_get_offset_by_random (brush); + radius = MAX (MAX (4 / shell->scale_x, 4 / shell->scale_y), radius); + + item = gimp_mybrush_tool_create_cursor (paint_tool, display, x, y, radius); + + if (! item) + { + gimp_paint_tool_set_draw_fallback (paint_tool, + TRUE, radius); + } + + return item; +} + +GimpCanvasItem * +gimp_mybrush_tool_create_cursor (GimpPaintTool *paint_tool, + GimpDisplay *display, + gdouble x, + gdouble y, + gdouble radius) +{ + + GimpDisplayShell *shell; + + g_return_val_if_fail (GIMP_IS_PAINT_TOOL (paint_tool), NULL); + g_return_val_if_fail (GIMP_IS_DISPLAY (display), NULL); + + shell = gimp_display_get_shell (display); + + /* don't draw the boundary if it becomes too small */ + if (SCALEX (shell, radius) > 4 && + SCALEY (shell, radius) > 4) + { + return gimp_canvas_arc_new(shell, x, y, radius, radius, 0.0, 2 * G_PI, FALSE); + } + + return NULL; +} |