143 lines
4.3 KiB
C
143 lines
4.3 KiB
C
/*
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* This is a plug-in for PIKA.
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*
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* Generates clickable image maps.
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*
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* Copyright (C) 1998-2003 Maurits Rijk lpeek.mrijk@consunet.nl
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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 3 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, see <https://www.gnu.org/licenses/>.
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*
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "imap_commands.h"
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#include "imap_rectangle.h"
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#include "imap_main.h"
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#include "libpika/stdplugins-intl.h"
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static CmdExecuteValue_t select_region_command_execute(Command_t *parent);
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static CommandClass_t select_region_command_class = {
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NULL, /* select_region_command_destruct, */
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select_region_command_execute,
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NULL, /* select_region_command_undo */
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NULL /* select_region_command_redo */
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};
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typedef struct {
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Command_t parent;
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GtkWidget *widget;
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ObjectList_t *list;
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gint x;
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gint y;
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Object_t *obj;
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Command_t *unselect_command;
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} SelectRegionCommand_t;
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Command_t*
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select_region_command_new(GtkWidget *widget, ObjectList_t *list, gint x,
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gint y)
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{
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SelectRegionCommand_t *command = g_new(SelectRegionCommand_t, 1);
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Command_t *sub_command;
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command->widget = widget;
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command->list = list;
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command->x = x;
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command->y = y;
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(void) command_init(&command->parent, _("Select Region"),
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&select_region_command_class);
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sub_command = unselect_all_command_new(list, NULL);
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command_add_subcommand(&command->parent, sub_command);
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command->unselect_command = sub_command;
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return &command->parent;
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}
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static void
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select_one_object(Object_t *obj, gpointer data)
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{
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SelectRegionCommand_t *command = (SelectRegionCommand_t*) data;
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command_add_subcommand(&command->parent, select_command_new(obj));
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}
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static void
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select_motion(GtkWidget *widget, GdkEventMotion *event, gpointer data)
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{
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SelectRegionCommand_t *command = (SelectRegionCommand_t*) data;
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Object_t *obj = command->obj;
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Rectangle_t *rectangle = ObjectToRectangle(obj);
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gint x = get_real_coord((gint) event->x);
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gint y = get_real_coord((gint) event->y);
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rectangle->width = x - rectangle->x;
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rectangle->height = y - rectangle->y;
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preview_redraw ();
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}
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static void
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select_release(GtkWidget *widget, GdkEventButton *event, gpointer data)
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{
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SelectRegionCommand_t *command = (SelectRegionCommand_t*) data;
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Object_t *obj = command->obj;
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Rectangle_t *rectangle = ObjectToRectangle(obj);
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gpointer id;
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gint count;
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g_signal_handlers_disconnect_by_func(widget,
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select_motion, data);
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g_signal_handlers_disconnect_by_func(widget,
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select_release, data);
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object_normalize(obj);
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id = object_list_add_select_cb(command->list, select_one_object, command);
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count = object_list_select_region(command->list, rectangle->x, rectangle->y,
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rectangle->width, rectangle->height);
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object_list_remove_select_cb(command->list, id);
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if (count) {
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command_list_add(&command->parent);
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} else { /* Nothing selected */
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if (command->unselect_command->sub_commands)
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command_list_add(&command->parent);
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}
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preview_unset_tmp_obj (command->obj);
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preview_redraw ();
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}
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static CmdExecuteValue_t
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select_region_command_execute(Command_t *parent)
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{
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SelectRegionCommand_t *command = (SelectRegionCommand_t*) parent;
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command->obj = create_rectangle(command->x, command->y, 0, 0);
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preview_set_tmp_obj (command->obj);
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g_signal_connect(command->widget, "button-release-event",
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G_CALLBACK (select_release), command);
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g_signal_connect(command->widget, "motion-notify-event",
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G_CALLBACK (select_motion), command);
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return CMD_IGNORE;
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}
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