synfig-studio/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 **      Copyright (c) 2007 Chris Moore
  10 **
  11 **      This package is free software; you can redistribute it and/or
  12 **      modify it under the terms of the GNU General Public License as
  13 **      published by the Free Software Foundation; either version 2 of
  14 **      the License, or (at your option) any later version.
  15 **
  16 **      This package is distributed in the hope that it will be useful,
  17 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19 **      General Public License for more details.
  20 **      \endlegal
  21 */
  22 /* ========================================================================= */
  23
  24 /* === H E A D E R S ======================================================= */
  25
  26 #ifdef USING_PCH
  27 #       include "pch.h"
  28 #else
  29 #ifdef HAVE_CONFIG_H
  30 #       include <config.h>
  31 #endif
  32
  33 #include <gtkmm/dialog.h>
  34 #include <gtkmm/entry.h>
  35
  36 #include <synfig/valuenode_dynamiclist.h>
  37
  38 #include "state_stroke.h"
  39 #include "canvasview.h"
  40 #include "workarea.h"
  41 #include "app.h"
  42 #include <synfig/valuenode_bline.h>
  43 #include <ETL/hermite>
  44 #include <ETL/calculus>
  45 #include <utility>
  46 #include "event_mouse.h"
  47 #include "event_layerclick.h"
  48 #include "toolbox.h"
  49 #include <synfigapp/main.h>
  50
  51 #include "general.h"
  52
  53 #endif
  54
  55 /* === U S I N G =========================================================== */
  56
  57 using namespace std;
  58 using namespace etl;
  59 using namespace synfig;
  60 using namespace studio;
  61
  62 /* === M A C R O S ========================================================= */
  63
  64 /* === G L O B A L S ======================================================= */
  65
  66 StateStroke studio::state_stroke;
  67
  68 /* === C L A S S E S & S T R U C T S ======================================= */
  69
  70 class studio::StateStroke_Context : public sigc::trackable
  71 {
  72         etl::handle<CanvasView> canvas_view_;
  73         CanvasView::IsWorking is_working;
  74
  75         Duckmatic::Push duckmatic_push;
  76
  77         etl::smart_ptr<std::list<synfig::Point> > stroke_data;
  78
  79         etl::smart_ptr<std::list<synfig::Real> > width_data;
  80
  81         Gdk::ModifierType modifier;
  82
  83 public:
  84
  85         Smach::event_result event_stop_handler(const Smach::event& x);
  86
  87         Smach::event_result event_refresh_handler(const Smach::event& x);
  88
  89         Smach::event_result event_mouse_up_handler(const Smach::event& x);
  90
  91         Smach::event_result event_mouse_draw_handler(const Smach::event& x);
  92         Smach::event_result event_refresh_tool_options(const Smach::event& x);
  93
  94         StateStroke_Context(CanvasView* canvas_view);
  95
  96         ~StateStroke_Context();
  97
  98         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
  99         etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 100         synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 101         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 102
 103 };      // END of class StateStroke_Context
 104
 105
 106 /* === M E T H O D S ======================================================= */
 107
 108 StateStroke::StateStroke():
 109         Smach::state<StateStroke_Context>("stroke")
 110 {
 111         insert(event_def(EVENT_STOP,&StateStroke_Context::event_stop_handler));
 112         insert(event_def(EVENT_REFRESH,&StateStroke_Context::event_refresh_handler));
 113 //      insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateStroke_Context::event_mouse_down_handler));
 114         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateStroke_Context::event_mouse_up_handler));
 115         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateStroke_Context::event_mouse_draw_handler));
 116         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateStroke_Context::event_refresh_tool_options));
 117 }
 118
 119 StateStroke::~StateStroke()
 120 {
 121 }
 122
 123
 124 StateStroke_Context::StateStroke_Context(CanvasView* canvas_view):
 125         canvas_view_(canvas_view),
 126         is_working(*canvas_view),
 127         duckmatic_push(get_work_area())
 128 {
 129         width_data.spawn();
 130         stroke_data.spawn();
 131
 132         get_work_area()->add_stroke(stroke_data, synfigapp::Main::get_outline_color());
 133 }
 134
 135 StateStroke_Context::~StateStroke_Context()
 136 {
 137         duckmatic_push.restore();
 138
 139         App::toolbox->refresh();
 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         default:
 177                 return Smach::RESULT_OK;
 178         }
 179 }
 180
 181 Smach::event_result
 182 StateStroke_Context::event_mouse_draw_handler(const Smach::event& x)
 183 {
 184         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 185         switch(event.button)
 186         {
 187         case BUTTON_LEFT:
 188                 {
 189                         stroke_data->push_back(event.pos);
 190                         width_data->push_back(event.pressure);
 191                         get_work_area()->queue_draw();
 192                         return Smach::RESULT_ACCEPT;
 193                 }
 194
 195         default:
 196                 return Smach::RESULT_OK;
 197         }
 198 }