synfig-studio/trunk/src/gtkmm/renderer_dragbox.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file template.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id: renderer_dragbox.cpp,v 1.1.1.1 2005/01/07 03:34:36 darco Exp $
   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 #endif
  37
  38 /* === U S I N G =========================================================== */
  39
  40 using namespace std;
  41 using namespace etl;
  42 using namespace synfig;
  43 using namespace studio;
  44
  45 /* === M A C R O S ========================================================= */
  46
  47 /* === G L O B A L S ======================================================= */
  48
  49 /* === P R O C E D U R E S ================================================= */
  50
  51 /* === M E T H O D S ======================================================= */
  52
  53 Renderer_Dragbox::~Renderer_Dragbox()
  54 {
  55 }
  56
  57 const synfig::Point&
  58 Renderer_Dragbox::get_drag_point()const
  59 {
  60         return get_work_area()->get_drag_point();
  61 }
  62
  63 const synfig::Point&
  64 Renderer_Dragbox::get_curr_point()const
  65 {
  66         return get_work_area()->get_cursor_pos();
  67 }
  68
  69 bool
  70 Renderer_Dragbox::get_enabled_vfunc()const
  71 {
  72         return get_work_area()->get_dragging_mode()==WorkArea::DRAG_BOX;
  73 }
  74
  75
  76 void
  77 Renderer_Dragbox::render_vfunc(
  78         const Glib::RefPtr<Gdk::Drawable>& drawable,
  79         const Gdk::Rectangle& expose_area
  80 )
  81 {
  82         assert(get_work_area());
  83         if(!get_work_area())
  84                 return;
  85
  86         const synfig::RendDesc &rend_desc(get_work_area()->get_canvas()->rend_desc());
  87
  88         const synfig::Vector focus_point(get_work_area()->get_focus_point());
  89
  90 //      std::vector< std::pair<Glib::RefPtr<Gdk::Pixbuf>,int> >& tile_book(get_tile_book());
  91
  92         int drawable_w,drawable_h;
  93         drawable->get_size(drawable_w,drawable_h);
  94
  95         // Calculate the window coordinates of the top-left
  96         // corner of the canvas.
  97         const synfig::Vector::value_type
  98                 x(focus_point[0]/get_pw()+drawable_w/2-get_w()/2),
  99                 y(focus_point[1]/get_ph()+drawable_h/2-get_h()/2);
 100
 101         /*const synfig::Vector::value_type window_startx(window_tl[0]);
 102         const synfig::Vector::value_type window_endx(window_br[0]);
 103         const synfig::Vector::value_type window_starty(window_tl[1]);
 104         const synfig::Vector::value_type window_endy(window_br[1]);
 105         */
 106         const int
 107                 tile_w(get_work_area()->get_tile_w()),
 108                 tile_h(get_work_area()->get_tile_h());
 109
 110         const int
 111                 w(get_w()),
 112                 h(get_h());
 113
 114         Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(drawable));
 115
 116         //const synfig::Vector grid_size(get_grid_size());
 117
 118         const synfig::Vector::value_type window_startx(get_work_area()->get_window_tl()[0]);
 119         const synfig::Vector::value_type window_endx(get_work_area()->get_window_br()[0]);
 120         const synfig::Vector::value_type window_starty(get_work_area()->get_window_tl()[1]);
 121         const synfig::Vector::value_type window_endy(get_work_area()->get_window_br()[1]);
 122         const float pw(get_pw()),ph(get_ph());
 123
 124         const synfig::Point& curr_point(get_curr_point());
 125         const synfig::Point& drag_point(get_drag_point());
 126
 127         {
 128                 gc->set_function(Gdk::COPY);
 129                 gc->set_rgb_fg_color(Gdk::Color("#000000"));
 130                 gc->set_line_attributes(1,Gdk::LINE_ON_OFF_DASH,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 131                 //gc->set_line_attributes(1,Gdk::LINE_SOLID,Gdk::CAP_BUTT,Gdk::JOIN_MITER);
 132
 133                 Point tl(std::min(drag_point[0],curr_point[0]),std::min(drag_point[1],curr_point[1]));
 134                 Point br(std::max(drag_point[0],curr_point[0]),std::max(drag_point[1],curr_point[1]));
 135
 136                 tl[0]=(tl[0]-window_startx)/pw;
 137                 tl[1]=(tl[1]-window_starty)/ph;
 138                 br[0]=(br[0]-window_startx)/pw;
 139                 br[1]=(br[1]-window_starty)/ph;
 140                 if(tl[0]>br[0])
 141                         swap(tl[0],br[0]);
 142                 if(tl[1]>br[1])
 143                         swap(tl[1],br[1]);
 144
 145                 drawable->draw_rectangle(gc,false,
 146                         round_to_int(tl[0]),
 147                         round_to_int(tl[1]),
 148                         round_to_int(br[0]-tl[0]),
 149                         round_to_int(br[1]-tl[1])
 150                 );
 151         }
 152 }