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

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file state_stroke.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 <gtkmm/dialog.h>
  33 #include <gtkmm/entry.h>
  34
  35 #include <synfig/valuenode_dynamiclist.h>
  36
  37 #include "state_stroke.h"
  38 #include "canvasview.h"
  39 #include "workarea.h"
  40 #include "app.h"
  41 #include <synfig/valuenode_bline.h>
  42 #include <ETL/hermite>
  43 #include <ETL/calculus>
  44 #include <utility>
  45 #include "event_mouse.h"
  46 #include "event_layerclick.h"
  47 #include "toolbox.h"
  48 #include <synfigapp/main.h>
  49
  50 #endif
  51
  52 /* === U S I N G =========================================================== */
  53
  54 using namespace std;
  55 using namespace etl;
  56 using namespace synfig;
  57 using namespace studio;
  58
  59 /* === M A C R O S ========================================================= */
  60
  61 /* === G L O B A L S ======================================================= */
  62
  63 StateStroke studio::state_stroke;
  64
  65 /* === C L A S S E S & S T R U C T S ======================================= */
  66
  67 class studio::StateStroke_Context : public sigc::trackable
  68 {
  69         etl::handle<CanvasView> canvas_view_;
  70         CanvasView::IsWorking is_working;
  71
  72         Duckmatic::Push duckmatic_push;
  73
  74         etl::smart_ptr<std::list<synfig::Point> > stroke_data;
  75
  76         etl::smart_ptr<std::list<synfig::Real> > width_data;
  77
  78         Gdk::ModifierType modifier;
  79
  80 public:
  81
  82         Smach::event_result event_stop_handler(const Smach::event& x);
  83
  84         Smach::event_result event_refresh_handler(const Smach::event& x);
  85
  86         Smach::event_result event_mouse_up_handler(const Smach::event& x);
  87
  88         Smach::event_result event_mouse_draw_handler(const Smach::event& x);
  89         Smach::event_result event_refresh_tool_options(const Smach::event& x);
  90
  91         StateStroke_Context(CanvasView* canvas_view);
  92
  93         ~StateStroke_Context();
  94
  95         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
  96         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
  97         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
  98         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
  99
 100 };      // END of class StateStroke_Context
 101
 102
 103 /* === M E T H O D S ======================================================= */
 104
 105 StateStroke::StateStroke():
 106         Smach::state<StateStroke_Context>("stroke")
 107 {
 108         insert(event_def(EVENT_STOP,&StateStroke_Context::event_stop_handler));
 109         insert(event_def(EVENT_REFRESH,&StateStroke_Context::event_refresh_handler));
 110 //      insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateStroke_Context::event_mouse_down_handler));
 111         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateStroke_Context::event_mouse_up_handler));
 112         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateStroke_Context::event_mouse_draw_handler));
 113         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateStroke_Context::event_refresh_tool_options));
 114 }
 115
 116 StateStroke::~StateStroke()
 117 {
 118 }
 119
 120
 121 StateStroke_Context::StateStroke_Context(CanvasView* canvas_view):
 122         canvas_view_(canvas_view),
 123         is_working(*canvas_view),
 124         duckmatic_push(get_work_area())
 125 {
 126         width_data.spawn();
 127         stroke_data.spawn();
 128
 129         get_work_area()->add_stroke(stroke_data, synfigapp::Main::get_foreground_color());
 130
 131         synfig::info("Now Scribbling...");
 132 }
 133
 134 StateStroke_Context::~StateStroke_Context()
 135 {
 136         duckmatic_push.restore();
 137
 138         App::toolbox->refresh();
 139         synfig::info("No longer scribbling");
 140
 141         // Send the stroke data to whatever previously called this state.
 142         if(stroke_data->size()>=2)
 143                 get_canvas_view()->get_smach().process_event(EventStroke(stroke_data,width_data,modifier));
 144 }
 145
 146 Smach::event_result
 147 StateStroke_Context::event_refresh_tool_options(const Smach::event& /*x*/)
 148 {
 149         return Smach::RESULT_ACCEPT;
 150 }
 151
 152 Smach::event_result
 153 StateStroke_Context::event_stop_handler(const Smach::event& /*x*/)
 154 {
 155         throw Smach::pop_exception();
 156 }
 157
 158 Smach::event_result
 159 StateStroke_Context::event_refresh_handler(const Smach::event& /*x*/)
 160 {
 161         return Smach::RESULT_ACCEPT;
 162 }
 163
 164 Smach::event_result
 165 StateStroke_Context::event_mouse_up_handler(const Smach::event& x)
 166 {
 167         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 168         switch(event.button)
 169         {
 170         case BUTTON_LEFT:
 171                 {
 172                         modifier=event.modifier;
 173                         throw Smach::pop_exception();
 174                 }
 175
 176         case BUTTON_RIGHT: // Intercept the right-button click to short-circut the pop-up menu
 177                 return Smach::RESULT_ACCEPT;
 178
 179         default:
 180                 return Smach::RESULT_OK;
 181         }
 182 }
 183
 184 Smach::event_result
 185 StateStroke_Context::event_mouse_draw_handler(const Smach::event& x)
 186 {
 187         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 188         switch(event.button)
 189         {
 190         case BUTTON_LEFT:
 191                 {
 192                         stroke_data->push_back(event.pos);
 193                         width_data->push_back(event.pressure);
 194                         get_work_area()->queue_draw();
 195                         return Smach::RESULT_ACCEPT;
 196                 }
 197
 198         case BUTTON_RIGHT: // Intercept the right-button click to short-circut the pop-up menu
 199                 return Smach::RESULT_ACCEPT;
 200
 201         default:
 202                 return Smach::RESULT_OK;
 203         }
 204 }