Build rectanglular blines in the same handedness as all the other shapes.
[synfig.git] / synfig-studio / trunk / src / gtkmm / renderer_dragbox.cpp
1 /* === S Y N F I G ========================================================= */
2 /*!     \file renderer_dragbox.cpp
3 **      \brief Template File
4 **
5 **      $Id$
6 **
7 **      \legal
8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 **
10 **      This package is free software; you can redistribute it and/or
11 **      modify it under the terms of the GNU General Public License as
12 **      published by the Free Software Foundation; either version 2 of
13 **      the License, or (at your option) any later version.
14 **
15 **      This package is distributed in the hope that it will be useful,
16 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
17 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 **      General Public License for more details.
19 **      \endlegal
20 */
21 /* ========================================================================= */
22
23 /* === H E A D E R S ======================================================= */
24
25 #ifdef USING_PCH
26 #       include "pch.h"
27 #else
28 #ifdef HAVE_CONFIG_H
29 #       include <config.h>
30 #endif
31
32 #include "renderer_dragbox.h"
33 #include "workarea.h"
34 #include <ETL/misc>
35
36 #include "general.h"
37
38 #endif
39
40 /* === U S I N G =========================================================== */
41
42 using namespace std;
43 using namespace etl;
44 using namespace synfig;
45 using namespace studio;
46
47 /* === M A C R O S ========================================================= */
48
49 /* === G L O B A L S ======================================================= */
50
51 /* === P R O C E D U R E S ================================================= */
52
53 /* === M E T H O D S ======================================================= */
54
55 Renderer_Dragbox::~Renderer_Dragbox()
56 {
57 }
58
59 const synfig::Point&
60 Renderer_Dragbox::get_drag_point()const
61 {
62         return get_work_area()->get_drag_point();
63 }
64
65 const synfig::Point&
66 Renderer_Dragbox::get_curr_point()const
67 {
68         return get_work_area()->get_cursor_pos();
69 }
70
71 bool
72 Renderer_Dragbox::get_enabled_vfunc()const
73 {
74         return get_work_area()->get_dragging_mode()==WorkArea::DRAG_BOX;
75 }
76
77
78 void
79 Renderer_Dragbox::render_vfunc(
80         const Glib::RefPtr<Gdk::Drawable>& drawable,
81         const Gdk::Rectangle& /*expose_area*/
82 )
83 {
84         assert(get_work_area());
85         if(!get_work_area())
86                 return;
87
88         // const synfig::RendDesc &rend_desc(get_work_area()->get_canvas()->rend_desc());
89
90         const synfig::Vector focus_point(get_work_area()->get_focus_point());
91
92 //      std::vector< std::pair<Glib::RefPtr<Gdk::Pixbuf>,int> >& tile_book(get_tile_book());
93
94         int drawable_w,drawable_h;
95         drawable->get_size(drawable_w,drawable_h);
96
97         // Calculate the window coordinates of the top-left
98         // corner of the canvas.
99         // const synfig::Vector::value_type
100         //      x(focus_point[0]/get_pw()+drawable_w/2-get_w()/2),
101         //      y(focus_point[1]/get_ph()+drawable_h/2-get_h()/2);
102
103         /*const synfig::Vector::value_type window_startx(window_tl[0]);
104         const synfig::Vector::value_type window_endx(window_br[0]);
105         const synfig::Vector::value_type window_starty(window_tl[1]);
106         const synfig::Vector::value_type window_endy(window_br[1]);
107         */
108         // const int
109         //      tile_w(get_work_area()->get_tile_w()),
110         //      tile_h(get_work_area()->get_tile_h());
111
112         // const int
113         //      w(get_w()),
114         //      h(get_h());
115
116         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(drawable));
117
118         //const synfig::Vector grid_size(get_grid_size());
119
120         const synfig::Vector::value_type window_startx(get_work_area()->get_window_tl()[0]);
121         // const synfig::Vector::value_type window_endx(get_work_area()->get_window_br()[0]);
122         const synfig::Vector::value_type window_starty(get_work_area()->get_window_tl()[1]);
123         // const synfig::Vector::value_type window_endy(get_work_area()->get_window_br()[1]);
124         const float pw(get_pw()),ph(get_ph());
125
126         const synfig::Point& curr_point(get_curr_point());
127         const synfig::Point& drag_point(get_drag_point());
128
129         {
130                 gc->set_function(Gdk::COPY);
131                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
132                 gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
133                 //gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
134
135                 Point tl(std::min(drag_point[0],curr_point[0]),std::min(drag_point[1],curr_point[1]));
136                 Point br(std::max(drag_point[0],curr_point[0]),std::max(drag_point[1],curr_point[1]));
137
138                 tl[0]=(tl[0]-window_startx)/pw;
139                 tl[1]=(tl[1]-window_starty)/ph;
140                 br[0]=(br[0]-window_startx)/pw;
141                 br[1]=(br[1]-window_starty)/ph;
142                 if(tl[0]>br[0])
143                         swap(tl[0],br[0]);
144                 if(tl[1]>br[1])
145                         swap(tl[1],br[1]);
146
147                 drawable->draw_rectangle(gc,false,
148                         round_to_int(tl[0]),
149                         round_to_int(tl[1]),
150                         round_to_int(br[0]-tl[0]),
151                         round_to_int(br[1]-tl[1])
152                 );
153         }
154 }