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8b8c784a5b
2005-12-13 Michael Natterer <mitch@gimp.org> * app/tools/*.c: port to G_DEFINE_TYPE() and friends. Some related cleanup.
333 lines
10 KiB
C
333 lines
10 KiB
C
/* The GIMP -- an image manipulation program
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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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#include "libgimpbase/gimpbase.h"
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#include "libgimpwidgets/gimpwidgets.h"
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#include "tools-types.h"
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#include "core/gimpchannel.h"
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#include "core/gimpimage.h"
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#include "core/gimppickable.h"
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#include "core/gimptoolinfo.h"
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#include "display/gimpdisplay.h"
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#include "gimpeditselectiontool.h"
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#include "gimpselectiontool.h"
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#include "gimpselectionoptions.h"
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#include "gimptoolcontrol.h"
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#include "gimp-intl.h"
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static void gimp_selection_tool_control (GimpTool *tool,
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GimpToolAction action,
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GimpDisplay *gdisp);
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static void gimp_selection_tool_modifier_key (GimpTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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GimpDisplay *gdisp);
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static void gimp_selection_tool_oper_update (GimpTool *tool,
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GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *gdisp);
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static void gimp_selection_tool_cursor_update (GimpTool *tool,
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GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *gdisp);
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G_DEFINE_TYPE (GimpSelectionTool, gimp_selection_tool, GIMP_TYPE_DRAW_TOOL);
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#define parent_class gimp_selection_tool_parent_class
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static void
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gimp_selection_tool_class_init (GimpSelectionToolClass *klass)
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{
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GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
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tool_class->control = gimp_selection_tool_control;
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tool_class->modifier_key = gimp_selection_tool_modifier_key;
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tool_class->key_press = gimp_edit_selection_tool_key_press;
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tool_class->oper_update = gimp_selection_tool_oper_update;
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tool_class->cursor_update = gimp_selection_tool_cursor_update;
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}
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static void
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gimp_selection_tool_init (GimpSelectionTool *selection_tool)
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{
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selection_tool->op = SELECTION_REPLACE;
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selection_tool->saved_op = SELECTION_REPLACE;
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}
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static void
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gimp_selection_tool_control (GimpTool *tool,
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GimpToolAction action,
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GimpDisplay *gdisp)
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{
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if (action == HALT)
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gimp_tool_pop_status (tool, gdisp);
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GIMP_TOOL_CLASS (parent_class)->control (tool, action, gdisp);
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}
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static void
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gimp_selection_tool_modifier_key (GimpTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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GimpDisplay *gdisp)
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{
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GimpSelectionTool *selection_tool = GIMP_SELECTION_TOOL (tool);
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GimpSelectionOptions *options;
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options = GIMP_SELECTION_OPTIONS (tool->tool_info->tool_options);
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if (key == GDK_SHIFT_MASK || key == GDK_CONTROL_MASK)
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{
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SelectOps button_op = options->operation;
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if (press)
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{
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if (key == (state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)))
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{
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/* first modifier pressed */
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selection_tool->saved_op = options->operation;
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}
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}
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else
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{
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if (! (state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)))
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{
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/* last modifier released */
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button_op = selection_tool->saved_op;
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}
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}
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if ((state & GDK_CONTROL_MASK) && (state & GDK_SHIFT_MASK))
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{
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button_op = SELECTION_INTERSECT;
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}
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else if (state & GDK_SHIFT_MASK)
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{
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button_op = SELECTION_ADD;
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}
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else if (state & GDK_CONTROL_MASK)
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{
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button_op = SELECTION_SUBTRACT;
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}
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if (button_op != options->operation)
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{
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g_object_set (options, "operation", button_op, NULL);
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}
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}
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}
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static void
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gimp_selection_tool_oper_update (GimpTool *tool,
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GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *gdisp)
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{
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GimpSelectionTool *selection_tool = GIMP_SELECTION_TOOL (tool);
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GimpSelectionOptions *options;
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GimpChannel *selection;
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GimpLayer *layer;
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GimpLayer *floating_sel;
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const gchar *status = NULL;
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gboolean move_layer = FALSE;
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gboolean move_floating_sel = FALSE;
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options = GIMP_SELECTION_OPTIONS (tool->tool_info->tool_options);
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selection = gimp_image_get_mask (gdisp->gimage);
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layer = gimp_image_pick_correlate_layer (gdisp->gimage,
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coords->x, coords->y);
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floating_sel = gimp_image_floating_sel (gdisp->gimage);
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if (layer)
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{
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if (floating_sel)
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{
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if (layer == floating_sel)
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move_floating_sel = TRUE;
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}
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else if (gimp_pickable_get_opacity_at (GIMP_PICKABLE (selection),
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coords->x, coords->y))
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{
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move_layer = TRUE;
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}
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}
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if ((state & GDK_MOD1_MASK) && (state & GDK_CONTROL_MASK) && move_layer)
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{
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selection_tool->op = SELECTION_MOVE_COPY; /* move a copy of the selection */
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}
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else if ((state & GDK_MOD1_MASK) && ! gimp_channel_is_empty (selection))
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{
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selection_tool->op = SELECTION_MOVE_MASK; /* move the selection mask */
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}
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else if (! (state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) &&
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(move_layer || move_floating_sel))
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{
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selection_tool->op = SELECTION_MOVE; /* move the selection */
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}
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else if ((state & GDK_CONTROL_MASK) && (state & GDK_SHIFT_MASK))
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{
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selection_tool->op = SELECTION_INTERSECT; /* intersect with selection */
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}
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else if (state & GDK_SHIFT_MASK)
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{
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selection_tool->op = SELECTION_ADD; /* add to the selection */
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}
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else if (state & GDK_CONTROL_MASK)
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{
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selection_tool->op = SELECTION_SUBTRACT; /* subtract from the selection */
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}
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else if (floating_sel)
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{
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selection_tool->op = SELECTION_ANCHOR; /* anchor the selection */
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}
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else
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{
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selection_tool->op = options->operation;
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}
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if (! gimp_enum_get_value (GIMP_TYPE_CHANNEL_OPS, selection_tool->op,
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NULL, NULL, &status, NULL))
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{
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switch (selection_tool->op)
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{
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case SELECTION_MOVE_MASK:
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status = _("Move the selection mask");
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break;
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case SELECTION_MOVE:
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status = _("Move the selected pixels");
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break;
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case SELECTION_MOVE_COPY:
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status = _("Move a copy of the selected pixels");
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break;
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case SELECTION_ANCHOR:
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status = _("Anchor the floating selection");
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break;
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default:
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g_return_if_reached ();
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}
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}
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gimp_tool_push_status (tool, gdisp, status);
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}
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static void
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gimp_selection_tool_cursor_update (GimpTool *tool,
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GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *gdisp)
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{
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GimpSelectionTool *selection_tool = GIMP_SELECTION_TOOL (tool);
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GimpToolCursorType tool_cursor;
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GimpCursorModifier cmodifier;
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tool_cursor = gimp_tool_control_get_tool_cursor (tool->control);
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cmodifier = GIMP_CURSOR_MODIFIER_NONE;
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switch (selection_tool->op)
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{
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case SELECTION_ADD:
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cmodifier = GIMP_CURSOR_MODIFIER_PLUS;
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break;
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case SELECTION_SUBTRACT:
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cmodifier = GIMP_CURSOR_MODIFIER_MINUS;
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break;
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case SELECTION_INTERSECT:
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cmodifier = GIMP_CURSOR_MODIFIER_INTERSECT;
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break;
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case SELECTION_REPLACE:
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break;
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case SELECTION_MOVE_MASK:
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cmodifier = GIMP_CURSOR_MODIFIER_MOVE;
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break;
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case SELECTION_MOVE:
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case SELECTION_MOVE_COPY:
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tool_cursor = GIMP_TOOL_CURSOR_MOVE;
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break;
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case SELECTION_ANCHOR:
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cmodifier = GIMP_CURSOR_MODIFIER_ANCHOR;
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break;
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}
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gimp_tool_set_cursor (tool, gdisp, GIMP_CURSOR_MOUSE, tool_cursor, cmodifier);
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}
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/* public functions */
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gboolean
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gimp_selection_tool_start_edit (GimpSelectionTool *sel_tool,
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GimpCoords *coords)
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{
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GimpTool *tool;
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g_return_val_if_fail (GIMP_IS_SELECTION_TOOL (sel_tool), FALSE);
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g_return_val_if_fail (coords != NULL, FALSE);
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tool = GIMP_TOOL (sel_tool);
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g_return_val_if_fail (GIMP_IS_DISPLAY (tool->gdisp), FALSE);
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g_return_val_if_fail (gimp_tool_control_is_active (tool->control), FALSE);
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switch (sel_tool->op)
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{
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case SELECTION_MOVE_MASK:
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gimp_edit_selection_tool_start (tool, tool->gdisp, coords,
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GIMP_TRANSLATE_MODE_MASK, FALSE);
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return TRUE;
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case SELECTION_MOVE:
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gimp_edit_selection_tool_start (tool, tool->gdisp, coords,
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GIMP_TRANSLATE_MODE_MASK_TO_LAYER, FALSE);
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return TRUE;
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case SELECTION_MOVE_COPY:
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gimp_edit_selection_tool_start (tool, tool->gdisp, coords,
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GIMP_TRANSLATE_MODE_MASK_COPY_TO_LAYER,
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FALSE);
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return TRUE;
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default:
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break;
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}
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return FALSE;
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}
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