/* The GIMP -- an 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 2 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, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "config.h" #include #include "libgimpcolor/gimpcolor.h" #include "libgimpwidgets/gimpwidgets.h" #include "tools-types.h" #include "core/gimpdrawable.h" #include "core/gimpimage.h" #include "core/gimpimage-mask-select.h" #include "core/gimpimage-projection.h" #include "core/gimptoolinfo.h" #include "display/gimpdisplay.h" #include "gimpbycolorselecttool.h" #include "selection_options.h" #include "libgimp/gimpintl.h" static void gimp_by_color_select_tool_class_init (GimpByColorSelectToolClass *klass); static void gimp_by_color_select_tool_init (GimpByColorSelectTool *by_color_select); static void gimp_by_color_select_tool_button_press (GimpTool *tool, GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *gdisp); static void gimp_by_color_select_tool_button_release (GimpTool *tool, GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *gdisp); static void gimp_by_color_select_tool_oper_update (GimpTool *tool, GimpCoords *coords, GdkModifierType state, GimpDisplay *gdisp); static void gimp_by_color_select_tool_cursor_update (GimpTool *tool, GimpCoords *coords, GdkModifierType state, GimpDisplay *gdisp); static GimpSelectionToolClass *parent_class = NULL; /* public functions */ void gimp_by_color_select_tool_register (GimpToolRegisterCallback callback, gpointer data) { (* callback) (GIMP_TYPE_BY_COLOR_SELECT_TOOL, selection_options_new, FALSE, "gimp-by-color-select-tool", _("Select By Color"), _("Select regions by color"), N_("/Tools/Selection Tools/By Color Select"), "C", NULL, "tools/by_color_select.html", GIMP_STOCK_TOOL_BY_COLOR_SELECT, data); } GType gimp_by_color_select_tool_get_type (void) { static GType tool_type = 0; if (! tool_type) { static const GTypeInfo tool_info = { sizeof (GimpByColorSelectToolClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) gimp_by_color_select_tool_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GimpByColorSelectTool), 0, /* n_preallocs */ (GInstanceInitFunc) gimp_by_color_select_tool_init, }; tool_type = g_type_register_static (GIMP_TYPE_SELECTION_TOOL, "GimpByColorSelectTool", &tool_info, 0); } return tool_type; } /* private functions */ static void gimp_by_color_select_tool_class_init (GimpByColorSelectToolClass *klass) { GimpToolClass *tool_class; tool_class = GIMP_TOOL_CLASS (klass); parent_class = g_type_class_peek_parent (klass); tool_class->button_press = gimp_by_color_select_tool_button_press; tool_class->button_release = gimp_by_color_select_tool_button_release; tool_class->oper_update = gimp_by_color_select_tool_oper_update; tool_class->cursor_update = gimp_by_color_select_tool_cursor_update; } static void gimp_by_color_select_tool_init (GimpByColorSelectTool *by_color_select) { GimpTool *tool; tool = GIMP_TOOL (by_color_select); gimp_tool_control_set_preserve (tool->control, FALSE); gimp_tool_control_set_preserve (tool->control, GIMP_RECT_SELECT_TOOL_CURSOR); by_color_select->x = 0; by_color_select->y = 0; } static void gimp_by_color_select_tool_button_press (GimpTool *tool, GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *gdisp) { GimpByColorSelectTool *by_color_sel; SelectionOptions *sel_options; by_color_sel = GIMP_BY_COLOR_SELECT_TOOL (tool); sel_options = (SelectionOptions *) tool->tool_info->tool_options; tool->drawable = gimp_image_active_drawable (gdisp->gimage); gimp_tool_control_activate (tool->control); tool->gdisp = gdisp; by_color_sel->x = coords->x; by_color_sel->y = coords->y; if (! sel_options->sample_merged) { gint off_x, off_y; gimp_drawable_offsets (gimp_image_active_drawable (gdisp->gimage), &off_x, &off_y); by_color_sel->x -= off_x; by_color_sel->y -= off_y; } } static void gimp_by_color_select_tool_button_release (GimpTool *tool, GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *gdisp) { GimpByColorSelectTool *by_color_sel; GimpSelectionTool *sel_tool; SelectionOptions *sel_options; GimpDrawable *drawable; guchar *col; GimpRGB color; by_color_sel = GIMP_BY_COLOR_SELECT_TOOL (tool); sel_tool = GIMP_SELECTION_TOOL (tool); sel_options = (SelectionOptions *) tool->tool_info->tool_options; drawable = gimp_image_active_drawable (gdisp->gimage); gimp_tool_control_halt (tool->control); /* First take care of the case where the user "cancels" the action */ if (! (state & GDK_BUTTON3_MASK)) { if (by_color_sel->x >= 0 && by_color_sel->y >= 0 && by_color_sel->x < gimp_drawable_width (drawable) && by_color_sel->y < gimp_drawable_height (drawable)) { /* Get the start color */ if (sel_options->sample_merged) { if (!(col = gimp_image_projection_get_color_at (gdisp->gimage, by_color_sel->x, by_color_sel->y))) return; } else { if (!(col = gimp_drawable_get_color_at (drawable, by_color_sel->x, by_color_sel->y))) return; } gimp_rgba_set_uchar (&color, col[0], col[1], col[2], col[3]); g_free (col); gimp_image_mask_select_by_color (gdisp->gimage, drawable, sel_options->sample_merged, &color, sel_options->threshold, sel_options->select_transparent, sel_tool->op, sel_options->antialias, sel_options->feather, sel_options->feather_radius, sel_options->feather_radius); gimp_image_flush (gdisp->gimage); } } } static void gimp_by_color_select_tool_oper_update (GimpTool *tool, GimpCoords *coords, GdkModifierType state, GimpDisplay *gdisp) { GimpSelectionTool *sel_tool; SelectionOptions *sel_options; if (gimp_tool_control_is_active (tool->control)) return; sel_tool = GIMP_SELECTION_TOOL (tool); sel_options = (SelectionOptions *) tool->tool_info->tool_options; if ((state & GDK_CONTROL_MASK) && (state & GDK_SHIFT_MASK)) { sel_tool->op = SELECTION_INTERSECT; /* intersect with selection */ } else if (state & GDK_SHIFT_MASK) { sel_tool->op = SELECTION_ADD; /* add to the selection */ } else if (state & GDK_CONTROL_MASK) { sel_tool->op = SELECTION_SUBTRACT; /* subtract from the selection */ } else { sel_tool->op = sel_options->op; } } static void gimp_by_color_select_tool_cursor_update (GimpTool *tool, GimpCoords *coords, GdkModifierType state, GimpDisplay *gdisp) { GimpByColorSelectTool *by_col_sel; SelectionOptions *sel_options; GimpLayer *layer; by_col_sel = GIMP_BY_COLOR_SELECT_TOOL (tool); sel_options = (SelectionOptions *) tool->tool_info->tool_options; layer = gimp_image_pick_correlate_layer (gdisp->gimage, coords->x, coords->y); if (! sel_options->sample_merged && layer && layer != gdisp->gimage->active_layer) { gimp_tool_control_set_cursor (tool->control, GIMP_BAD_CURSOR); } else { gimp_tool_control_set_cursor (tool->control, GIMP_MOUSE_CURSOR); } GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, gdisp); }