1 /*
2 * This is a plug-in for GIMP.
3 *
4 * Generates clickable image maps.
5 *
6 * Copyright (C) 1998-2003 Maurits Rijk lpeek.mrijk@consunet.nl
7 *
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <https://www.gnu.org/licenses/>.
20 *
21 */
22
23 #include "config.h"
24
25 #include <gtk/gtk.h>
26
27 #include "imap_commands.h"
28 #include "imap_main.h"
29
30 #include "libgimp/stdplugins-intl.h"
31
32 static void move_sash_command_destruct(Command_t *command);
33 static CmdExecuteValue_t move_sash_command_execute(Command_t *command);
34 static void move_sash_command_redo(Command_t *command);
35
36 static CommandClass_t move_sash_command_class = {
37 move_sash_command_destruct,
38 move_sash_command_execute,
39 NULL /*undo*/,
40 move_sash_command_redo
41 };
42
43 typedef struct {
44 Command_t parent;
45 GtkWidget *widget;
46 Object_t *obj;
47 gint x;
48 gint y;
49 gint image_width;
50 gint image_height;
51 MoveSashFunc_t sash_func;
52 } MoveSashCommand_t;
53
54 Command_t*
move_sash_command_new(GtkWidget * widget,Object_t * obj,gint x,gint y,MoveSashFunc_t sash_func)55 move_sash_command_new(GtkWidget *widget, Object_t *obj,
56 gint x, gint y, MoveSashFunc_t sash_func)
57 {
58 MoveSashCommand_t *command = g_new(MoveSashCommand_t, 1);
59 Command_t *parent;
60
61 command->widget = widget;
62 command->obj = object_ref(obj);
63 command->x = x;
64 command->y = y;
65 command->image_width = get_image_width();
66 command->image_height = get_image_height();
67 command->sash_func = sash_func;
68
69 parent = command_init(&command->parent, _("Move Sash"),
70 &move_sash_command_class);
71 command_add_subcommand(parent, edit_object_command_new(obj));
72
73 return parent;
74 }
75
76 static void
move_sash_command_destruct(Command_t * parent)77 move_sash_command_destruct(Command_t *parent)
78 {
79 MoveSashCommand_t *command = (MoveSashCommand_t*) parent;
80 object_unref(command->obj);
81 }
82
83 static void
sash_move(GtkWidget * widget,GdkEventMotion * event,gpointer data)84 sash_move(GtkWidget *widget, GdkEventMotion *event, gpointer data)
85 {
86 MoveSashCommand_t *command = (MoveSashCommand_t*) data;
87 Object_t *obj = command->obj;
88 gint x, y, dx, dy;
89
90 x = get_real_coord((gint) event->x);
91 y = get_real_coord((gint) event->y);
92
93 if (x < 0)
94 x = 0;
95 if (x > command->image_width)
96 x = command->image_width;
97
98 if (y < 0)
99 y = 0;
100 if (y > command->image_height)
101 y = command->image_height;
102
103 dx = x - command->x;
104 dy = y - command->y;
105
106 command->x = x;
107 command->y = y;
108
109 command->sash_func(obj, dx, dy);
110 object_emit_geometry_signal(obj);
111
112 preview_redraw ();
113 }
114
115 static void
sash_end(GtkWidget * widget,GdkEventButton * event,gpointer data)116 sash_end(GtkWidget *widget, GdkEventButton *event, gpointer data)
117 {
118 MoveSashCommand_t *command = (MoveSashCommand_t*) data;
119 Object_t *obj = command->obj;
120
121 g_signal_handlers_disconnect_by_func(widget,
122 sash_move, data);
123 g_signal_handlers_disconnect_by_func(widget,
124 sash_end, data);
125 if (obj->class->normalize)
126 object_normalize(obj);
127 preview_unset_tmp_obj(command->obj);
128 preview_redraw();
129 show_url();
130 }
131
132 static CmdExecuteValue_t
move_sash_command_execute(Command_t * parent)133 move_sash_command_execute(Command_t *parent)
134 {
135 MoveSashCommand_t *command = (MoveSashCommand_t*) parent;
136
137 hide_url();
138 g_signal_connect(command->widget, "button-release-event",
139 G_CALLBACK (sash_end), command);
140 g_signal_connect(command->widget, "motion-notify-event",
141 G_CALLBACK (sash_move), command);
142 preview_set_tmp_obj(command->obj);
143
144 return CMD_APPEND;
145 }
146
move_sash_command_redo(Command_t * command)147 static void move_sash_command_redo(Command_t *command)
148 {
149 /* do nothing, but avoid running execute again which will break event handling */
150 }
151