mirror of https://github.com/GNOME/gimp.git
271 lines
8.2 KiB
C
271 lines
8.2 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 "libgimpwidgets/gimpwidgets.h"
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#include "tools-types.h"
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#include "core/gimpimage.h"
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#include "core/gimpimage-mask.h"
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#include "core/gimptoolinfo.h"
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#include "display/gimpdisplay.h"
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#include "gimpdrawtool.h"
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#include "gimpeditselectiontool.h"
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#include "gimpselectiontool.h"
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#include "selection_options.h"
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static void gimp_selection_tool_class_init (GimpSelectionToolClass *klass);
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static void gimp_selection_tool_init (GimpSelectionTool *selection_tool);
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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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static GimpDrawToolClass *parent_class = NULL;
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GType
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gimp_selection_tool_get_type (void)
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{
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static GType tool_type = 0;
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if (! tool_type)
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{
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static const GTypeInfo tool_info =
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{
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sizeof (GimpSelectionToolClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gimp_selection_tool_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpSelectionTool),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_selection_tool_init,
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};
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tool_type = g_type_register_static (GIMP_TYPE_DRAW_TOOL,
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"GimpSelectionTool",
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&tool_info, 0);
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}
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return tool_type;
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}
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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;
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tool_class = GIMP_TOOL_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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tool_class->modifier_key = gimp_selection_tool_modifier_key;
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tool_class->arrow_key = gimp_edit_selection_tool_arrow_key;
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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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GimpTool *tool;
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tool = GIMP_TOOL (selection_tool);
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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_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;
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SelectionOptions *sel_options;
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SelectOps button_op;
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selection_tool = GIMP_SELECTION_TOOL (tool);
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sel_options = (SelectionOptions *) tool->tool_info->tool_options;
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button_op = sel_options->op;
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if (key == GDK_SHIFT_MASK || key == GDK_CONTROL_MASK)
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{
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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 = sel_options->op;
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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 != sel_options->op)
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{
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gimp_radio_group_set_active (GTK_RADIO_BUTTON (sel_options->op_w[0]),
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GINT_TO_POINTER (button_op));
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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;
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SelectionOptions *sel_options;
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GimpLayer *layer;
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GimpLayer *floating_sel;
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selection_tool = GIMP_SELECTION_TOOL (tool);
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sel_options = (SelectionOptions *) tool->tool_info->tool_options;
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layer = gimp_image_pick_correlate_layer (gdisp->gimage, coords->x, coords->y);
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floating_sel = gimp_image_floating_sel (gdisp->gimage);
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if ((state & GDK_MOD1_MASK) && ! gimp_image_mask_is_empty (gdisp->gimage))
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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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layer &&
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(layer == floating_sel ||
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(gimp_image_mask_value (gdisp->gimage, coords->x, coords->y) &&
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floating_sel == NULL)))
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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 = sel_options->op;
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}
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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;
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GimpToolCursorType tool_cursor;
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GimpCursorModifier cmodifier;
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selection_tool = GIMP_SELECTION_TOOL (tool);
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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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tool_cursor = GIMP_MOVE_TOOL_CURSOR;
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cmodifier = GIMP_CURSOR_MODIFIER_NONE;
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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,
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GIMP_MOUSE_CURSOR,
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tool_cursor,
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cmodifier);
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}
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