synfig-studio/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 }