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-rw-r--r--app/tools/gimpsourcetool.c519
1 files changed, 519 insertions, 0 deletions
diff --git a/app/tools/gimpsourcetool.c b/app/tools/gimpsourcetool.c
new file mode 100644
index 0000000..9d9f725
--- /dev/null
+++ b/app/tools/gimpsourcetool.c
@@ -0,0 +1,519 @@
+/* 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 "tools-types.h"
+
+#include "core/gimpchannel.h"
+#include "core/gimpimage.h"
+#include "core/gimppickable.h"
+
+#include "paint/gimpsourcecore.h"
+#include "paint/gimpsourceoptions.h"
+
+#include "widgets/gimpwidgets-utils.h"
+
+#include "display/gimpcanvashandle.h"
+#include "display/gimpdisplay.h"
+#include "display/gimpdisplayshell.h"
+#include "display/gimpdisplayshell-items.h"
+
+#include "gimpsourcetool.h"
+#include "gimptoolcontrol.h"
+
+#include "gimp-intl.h"
+
+
+static gboolean gimp_source_tool_has_display (GimpTool *tool,
+ GimpDisplay *display);
+static GimpDisplay * gimp_source_tool_has_image (GimpTool *tool,
+ GimpImage *image);
+static void gimp_source_tool_control (GimpTool *tool,
+ GimpToolAction action,
+ GimpDisplay *display);
+static void gimp_source_tool_button_press (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonPressType press_type,
+ GimpDisplay *display);
+static void gimp_source_tool_motion (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpDisplay *display);
+static void gimp_source_tool_cursor_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ GimpDisplay *display);
+static void gimp_source_tool_modifier_key (GimpTool *tool,
+ GdkModifierType key,
+ gboolean press,
+ GdkModifierType state,
+ GimpDisplay *display);
+static void gimp_source_tool_oper_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ gboolean proximity,
+ GimpDisplay *display);
+
+static void gimp_source_tool_draw (GimpDrawTool *draw_tool);
+
+static void gimp_source_tool_paint_prepare (GimpPaintTool *paint_tool,
+ GimpDisplay *display);
+
+static void gimp_source_tool_set_src_display (GimpSourceTool *source_tool,
+ GimpDisplay *display);
+
+
+G_DEFINE_TYPE (GimpSourceTool, gimp_source_tool, GIMP_TYPE_BRUSH_TOOL)
+
+#define parent_class gimp_source_tool_parent_class
+
+
+static void
+gimp_source_tool_class_init (GimpSourceToolClass *klass)
+{
+ GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
+ GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
+ GimpPaintToolClass *paint_tool_class = GIMP_PAINT_TOOL_CLASS (klass);
+
+ tool_class->has_display = gimp_source_tool_has_display;
+ tool_class->has_image = gimp_source_tool_has_image;
+ tool_class->control = gimp_source_tool_control;
+ tool_class->button_press = gimp_source_tool_button_press;
+ tool_class->motion = gimp_source_tool_motion;
+ tool_class->modifier_key = gimp_source_tool_modifier_key;
+ tool_class->oper_update = gimp_source_tool_oper_update;
+ tool_class->cursor_update = gimp_source_tool_cursor_update;
+
+ draw_tool_class->draw = gimp_source_tool_draw;
+
+ paint_tool_class->paint_prepare = gimp_source_tool_paint_prepare;
+}
+
+static void
+gimp_source_tool_init (GimpSourceTool *source)
+{
+ source->show_source_outline = TRUE;
+}
+
+static gboolean
+gimp_source_tool_has_display (GimpTool *tool,
+ GimpDisplay *display)
+{
+ GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
+
+ return (display == source_tool->src_display ||
+ GIMP_TOOL_CLASS (parent_class)->has_display (tool, display));
+}
+
+static GimpDisplay *
+gimp_source_tool_has_image (GimpTool *tool,
+ GimpImage *image)
+{
+ GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
+ GimpDisplay *display;
+
+ display = GIMP_TOOL_CLASS (parent_class)->has_image (tool, image);
+
+ if (! display && source_tool->src_display)
+ {
+ if (image && gimp_display_get_image (source_tool->src_display) == image)
+ display = source_tool->src_display;
+
+ /* NULL image means any display */
+ if (! image)
+ display = source_tool->src_display;
+ }
+
+ return display;
+}
+
+static void
+gimp_source_tool_control (GimpTool *tool,
+ GimpToolAction action,
+ GimpDisplay *display)
+{
+ GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
+
+ switch (action)
+ {
+ case GIMP_TOOL_ACTION_PAUSE:
+ case GIMP_TOOL_ACTION_RESUME:
+ break;
+
+ case GIMP_TOOL_ACTION_HALT:
+ gimp_source_tool_set_src_display (source_tool, NULL);
+ g_object_set (GIMP_PAINT_TOOL (tool)->core,
+ "src-drawable", NULL,
+ NULL);
+ break;
+
+ case GIMP_TOOL_ACTION_COMMIT:
+ break;
+ }
+
+ GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
+}
+
+static void
+gimp_source_tool_button_press (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonPressType press_type,
+ GimpDisplay *display)
+{
+ GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
+ GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
+ GimpSourceCore *source = GIMP_SOURCE_CORE (paint_tool->core);
+ GdkModifierType extend_mask = gimp_get_extend_selection_mask ();
+ GdkModifierType toggle_mask = gimp_get_toggle_behavior_mask ();
+
+ gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
+
+ if ((state & (toggle_mask | extend_mask)) == toggle_mask)
+ {
+ source->set_source = TRUE;
+
+ gimp_source_tool_set_src_display (source_tool, display);
+ }
+ else
+ {
+ source->set_source = FALSE;
+ }
+
+ GIMP_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
+ press_type, display);
+
+ source_tool->src_x = source->src_x;
+ source_tool->src_y = source->src_y;
+
+ gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
+}
+
+static void
+gimp_source_tool_motion (GimpTool *tool,
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpDisplay *display)
+{
+ GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
+ GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
+ GimpSourceCore *source = GIMP_SOURCE_CORE (paint_tool->core);
+
+ gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
+
+ GIMP_TOOL_CLASS (parent_class)->motion (tool, coords, time, state, display);
+
+ source_tool->src_x = source->src_x;
+ source_tool->src_y = source->src_y;
+
+ gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
+}
+
+static void
+gimp_source_tool_modifier_key (GimpTool *tool,
+ GdkModifierType key,
+ gboolean press,
+ GdkModifierType state,
+ GimpDisplay *display)
+{
+ GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
+ GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
+ GimpSourceOptions *options = GIMP_SOURCE_TOOL_GET_OPTIONS (tool);
+
+ if (gimp_source_core_use_source (GIMP_SOURCE_CORE (paint_tool->core),
+ options) &&
+ key == gimp_get_toggle_behavior_mask ())
+ {
+ gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
+
+ if (press)
+ {
+ paint_tool->status = source_tool->status_set_source;
+
+ source_tool->show_source_outline = FALSE;
+
+ source_tool->saved_precision =
+ gimp_tool_control_get_precision (tool->control);
+ gimp_tool_control_set_precision (tool->control,
+ GIMP_CURSOR_PRECISION_PIXEL_CENTER);
+ }
+ else
+ {
+ paint_tool->status = source_tool->status_paint;
+
+ source_tool->show_source_outline = TRUE;
+
+ gimp_tool_control_set_precision (tool->control,
+ source_tool->saved_precision);
+ }
+
+ gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
+ }
+
+ GIMP_TOOL_CLASS (parent_class)->modifier_key (tool, key, press, state,
+ display);
+}
+
+static void
+gimp_source_tool_cursor_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ GimpDisplay *display)
+{
+ GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
+ GimpSourceOptions *options = GIMP_SOURCE_TOOL_GET_OPTIONS (tool);
+ GimpCursorType cursor = GIMP_CURSOR_MOUSE;
+ GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_NONE;
+
+ if (gimp_source_core_use_source (GIMP_SOURCE_CORE (paint_tool->core),
+ options))
+ {
+ GdkModifierType extend_mask = gimp_get_extend_selection_mask ();
+ GdkModifierType toggle_mask = gimp_get_toggle_behavior_mask ();
+
+ if ((state & (toggle_mask | extend_mask)) == toggle_mask)
+ {
+ cursor = GIMP_CURSOR_CROSSHAIR_SMALL;
+ }
+ else if (! GIMP_SOURCE_CORE (GIMP_PAINT_TOOL (tool)->core)->src_drawable)
+ {
+ modifier = GIMP_CURSOR_MODIFIER_BAD;
+ }
+ }
+
+ gimp_tool_control_set_cursor (tool->control, cursor);
+ gimp_tool_control_set_cursor_modifier (tool->control, modifier);
+
+ GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
+}
+
+static void
+gimp_source_tool_oper_update (GimpTool *tool,
+ const GimpCoords *coords,
+ GdkModifierType state,
+ gboolean proximity,
+ GimpDisplay *display)
+{
+ GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
+ GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
+ GimpSourceOptions *options = GIMP_SOURCE_TOOL_GET_OPTIONS (tool);
+ GimpSourceCore *source;
+
+ source = GIMP_SOURCE_CORE (GIMP_PAINT_TOOL (tool)->core);
+
+ if (proximity)
+ {
+ if (gimp_source_core_use_source (source, options))
+ paint_tool->status_ctrl = source_tool->status_set_source_ctrl;
+ else
+ paint_tool->status_ctrl = NULL;
+ }
+
+ GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity,
+ display);
+
+ if (gimp_source_core_use_source (source, options))
+ {
+ if (source->src_drawable == NULL)
+ {
+ GdkModifierType toggle_mask = gimp_get_toggle_behavior_mask ();
+
+ if (state & toggle_mask)
+ {
+ gimp_tool_replace_status (tool, display, "%s",
+ source_tool->status_set_source);
+ }
+ else
+ {
+ gimp_tool_replace_status (tool, display, "%s-%s",
+ gimp_get_mod_string (toggle_mask),
+ source_tool->status_set_source);
+ }
+ }
+ else
+ {
+ gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
+
+ source_tool->src_x = source->src_x;
+ source_tool->src_y = source->src_y;
+
+ if (! source->first_stroke)
+ {
+ switch (options->align_mode)
+ {
+ case GIMP_SOURCE_ALIGN_YES:
+ source_tool->src_x = floor (coords->x) + source->offset_x;
+ source_tool->src_y = floor (coords->y) + source->offset_y;
+ break;
+
+ case GIMP_SOURCE_ALIGN_REGISTERED:
+ source_tool->src_x = floor (coords->x);
+ source_tool->src_y = floor (coords->y);
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
+ }
+ }
+}
+
+static void
+gimp_source_tool_draw (GimpDrawTool *draw_tool)
+{
+ GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (draw_tool);
+ GimpSourceOptions *options = GIMP_SOURCE_TOOL_GET_OPTIONS (draw_tool);
+ GimpSourceCore *source;
+
+ source = GIMP_SOURCE_CORE (GIMP_PAINT_TOOL (draw_tool)->core);
+
+ GIMP_DRAW_TOOL_CLASS (parent_class)->draw (draw_tool);
+
+ if (gimp_source_core_use_source (source, options) &&
+ source->src_drawable && source_tool->src_display)
+ {
+ GimpDisplayShell *src_shell;
+ gint off_x;
+ gint off_y;
+ gdouble src_x;
+ gdouble src_y;
+
+ src_shell = gimp_display_get_shell (source_tool->src_display);
+
+ gimp_item_get_offset (GIMP_ITEM (source->src_drawable), &off_x, &off_y);
+
+ src_x = source_tool->src_x + off_x + 0.5;
+ src_y = source_tool->src_y + off_y + 0.5;
+
+ if (source_tool->src_outline)
+ {
+ gimp_display_shell_remove_tool_item (src_shell,
+ source_tool->src_outline);
+ source_tool->src_outline = NULL;
+ }
+
+ if (source_tool->show_source_outline)
+ {
+ source_tool->src_outline =
+ gimp_brush_tool_create_outline (GIMP_BRUSH_TOOL (source_tool),
+ source_tool->src_display,
+ src_x, src_y);
+
+ if (source_tool->src_outline)
+ {
+ gimp_display_shell_add_tool_item (src_shell,
+ source_tool->src_outline);
+ g_object_unref (source_tool->src_outline);
+ }
+ }
+
+ if (source_tool->src_outline)
+ {
+ if (source_tool->src_handle)
+ {
+ gimp_display_shell_remove_tool_item (src_shell,
+ source_tool->src_handle);
+ source_tool->src_handle = NULL;
+ }
+ }
+ else
+ {
+ if (! source_tool->src_handle)
+ {
+ source_tool->src_handle =
+ gimp_canvas_handle_new (src_shell,
+ GIMP_HANDLE_CROSS,
+ GIMP_HANDLE_ANCHOR_CENTER,
+ src_x, src_y,
+ GIMP_TOOL_HANDLE_SIZE_CROSS,
+ GIMP_TOOL_HANDLE_SIZE_CROSS);
+ gimp_display_shell_add_tool_item (src_shell,
+ source_tool->src_handle);
+ g_object_unref (source_tool->src_handle);
+ }
+ else
+ {
+ gimp_canvas_handle_set_position (source_tool->src_handle,
+ src_x, src_y);
+ }
+ }
+ }
+}
+
+static void
+gimp_source_tool_paint_prepare (GimpPaintTool *paint_tool,
+ GimpDisplay *display)
+{
+ GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (paint_tool);
+
+ if (GIMP_PAINT_TOOL_CLASS (parent_class)->paint_prepare)
+ GIMP_PAINT_TOOL_CLASS (parent_class)->paint_prepare (paint_tool, display);
+
+ if (source_tool->src_display)
+ {
+ GimpDisplayShell *src_shell;
+
+ src_shell = gimp_display_get_shell (source_tool->src_display);
+
+ gimp_paint_core_set_show_all (paint_tool->core, src_shell->show_all);
+ }
+}
+
+static void
+gimp_source_tool_set_src_display (GimpSourceTool *source_tool,
+ GimpDisplay *display)
+{
+ if (source_tool->src_display != display)
+ {
+ if (source_tool->src_display)
+ {
+ GimpDisplayShell *src_shell;
+
+ src_shell = gimp_display_get_shell (source_tool->src_display);
+
+ if (source_tool->src_handle)
+ {
+ gimp_display_shell_remove_tool_item (src_shell,
+ source_tool->src_handle);
+ source_tool->src_handle = NULL;
+ }
+
+ if (source_tool->src_outline)
+ {
+ gimp_display_shell_remove_tool_item (src_shell,
+ source_tool->src_outline);
+ source_tool->src_outline = NULL;
+ }
+ }
+
+ source_tool->src_display = display;
+ }
+}
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