synfig-studio/tags/stable/src/gtkmm/state_gradient.cpp

   1 /* === S I N F G =========================================================== */
   2 /*!     \file state_gradient.cpp
   3 **      \brief Template File
   4 **
   5 **      $Id: state_gradient.cpp,v 1.1.1.1 2005/01/07 03:34:36 darco Exp $
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002 Robert B. Quattlebaum Jr.
   9 **
  10 **      This software and associated documentation
  11 **      are CONFIDENTIAL and PROPRIETARY property of
  12 **      the above-mentioned copyright holder.
  13 **
  14 **      You may not copy, print, publish, or in any
  15 **      other way distribute this software without
  16 **      a prior written agreement with
  17 **      the copyright holder.
  18 **      \endlegal
  19 */
  20 /* ========================================================================= */
  21
  22 /* === H E A D E R S ======================================================= */
  23
  24 #ifdef USING_PCH
  25 #       include "pch.h"
  26 #else
  27 #ifdef HAVE_CONFIG_H
  28 #       include <config.h>
  29 #endif
  30
  31 #include <gtkmm/dialog.h>
  32 #include <gtkmm/entry.h>
  33
  34 #include <sinfg/valuenode_dynamiclist.h>
  35 #include <sinfgapp/action_system.h>
  36
  37 #include "state_gradient.h"
  38 #include "canvasview.h"
  39 #include "workarea.h"
  40 #include "app.h"
  41
  42 #include <sinfgapp/action.h>
  43 #include "event_mouse.h"
  44 #include "event_layerclick.h"
  45 #include "toolbox.h"
  46 #include "dialog_tooloptions.h"
  47 #include <gtkmm/optionmenu.h>
  48 #include "duck.h"
  49
  50 #include "widget_enum.h"
  51 #include <sinfgapp/main.h>
  52
  53 #endif
  54
  55 /* === U S I N G =========================================================== */
  56
  57 using namespace std;
  58 using namespace etl;
  59 using namespace sinfg;
  60 using namespace studio;
  61
  62 /* === M A C R O S ========================================================= */
  63
  64 enum
  65 {
  66         GRADIENT_INTERPOLATION_LINEAR=0,
  67         GRADIENT_RADIAL=1,
  68         GRADIENT_CONICAL=2,
  69         GRADIENT_SPIRAL=3
  70 };
  71
  72 /* === G L O B A L S ======================================================= */
  73
  74 StateGradient studio::state_gradient;
  75
  76 /* === C L A S S E S & S T R U C T S ======================================= */
  77
  78 class studio::StateGradient_Context : public sigc::trackable
  79 {
  80         etl::handle<CanvasView> canvas_view_;
  81         CanvasView::IsWorking is_working;
  82
  83         Duckmatic::Push duckmatic_push;
  84
  85         sinfgapp::Settings& settings;
  86
  87         Point point_holder;
  88
  89         etl::handle<Duck> point2_duck;
  90
  91         void refresh_ducks();
  92
  93         bool prev_workarea_layer_status_;
  94
  95         Gtk::Table options_table;
  96         Gtk::Entry entry_id;
  97         Widget_Enum enum_type;
  98         Widget_Enum     enum_blend;
  99
 100 public:
 101         sinfg::String get_id()const { return entry_id.get_text(); }
 102         void set_id(const sinfg::String& x) { return entry_id.set_text(x); }
 103
 104         int get_type()const { return enum_type.get_value(); }
 105         void set_type(int x) { return enum_type.set_value(x); }
 106
 107         int get_blend()const { return enum_blend.get_value(); }
 108         void set_blend(int x) { return enum_blend.set_value(x); }
 109
 110         Smach::event_result event_stop_handler(const Smach::event& x);
 111
 112         Smach::event_result event_refresh_handler(const Smach::event& x);
 113
 114         Smach::event_result event_mouse_click_handler(const Smach::event& x);
 115         Smach::event_result event_refresh_tool_options(const Smach::event& x);
 116
 117         void refresh_tool_options();
 118
 119         StateGradient_Context(CanvasView* canvas_view);
 120
 121         ~StateGradient_Context();
 122
 123         const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
 124         etl::handle<sinfgapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
 125         sinfg::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
 126         WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
 127
 128         //void on_user_click(sinfg::Point point);
 129         void load_settings();
 130         void save_settings();
 131         void reset();
 132         void increment_id();
 133
 134         void make_gradient(const Point& p1, const Point& p2);
 135         bool no_egress_on_selection_change;
 136         Smach::event_result event_layer_selection_changed_handler(const Smach::event& x)
 137         {
 138                 if(!no_egress_on_selection_change)
 139                         throw Smach::egress_exception();
 140                 return Smach::RESULT_OK;
 141         }
 142
 143 };      // END of class StateGradient_Context
 144
 145 /* === M E T H O D S ======================================================= */
 146
 147 StateGradient::StateGradient():
 148         Smach::state<StateGradient_Context>("gradient")
 149 {
 150         insert(event_def(EVENT_LAYER_SELECTION_CHANGED,&StateGradient_Context::event_layer_selection_changed_handler));
 151         insert(event_def(EVENT_STOP,&StateGradient_Context::event_stop_handler));
 152         insert(event_def(EVENT_TABLES_SHOW,&StateGradient_Context::event_stop_handler));
 153         insert(event_def(EVENT_REFRESH,&StateGradient_Context::event_refresh_handler));
 154         insert(event_def(EVENT_REFRESH_DUCKS,&StateGradient_Context::event_refresh_handler));
 155         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateGradient_Context::event_mouse_click_handler));
 156         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateGradient_Context::event_mouse_click_handler));
 157         insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateGradient_Context::event_mouse_click_handler));
 158         insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateGradient_Context::event_refresh_tool_options));
 159 }
 160
 161 StateGradient::~StateGradient()
 162 {
 163 }
 164
 165 void
 166 StateGradient_Context::load_settings()
 167 {
 168         String value;
 169
 170         if(settings.get_value("gradient.id",value))
 171                 set_id(value);
 172         else
 173                 set_id("Gradient");
 174
 175         if(settings.get_value("gradient.type",value))
 176                 set_type(atoi(value.c_str()));
 177         else
 178                 set_type(GRADIENT_INTERPOLATION_LINEAR);
 179
 180         if(settings.get_value("gradient.blend",value))
 181                 set_blend(atoi(value.c_str()));
 182         else
 183                 set_blend(Color::BLEND_COMPOSITE);
 184 }
 185
 186 void
 187 StateGradient_Context::save_settings()
 188 {
 189         settings.set_value("gradient.id",get_id().c_str());
 190         settings.set_value("gradient.type",strprintf("%d",get_type()));
 191         settings.set_value("gradient.blend",strprintf("%d",get_blend()));
 192 }
 193
 194 void
 195 StateGradient_Context::reset()
 196 {
 197         refresh_ducks();
 198 }
 199
 200 void
 201 StateGradient_Context::increment_id()
 202 {
 203         String id(get_id());
 204         int number=1;
 205         int digits=0;
 206
 207         if(id.empty())
 208                 id="Gradient";
 209
 210         // If there is a number
 211         // already at the end of the
 212         // id, then remove it.
 213         if(id[id.size()-1]<='9' && id[id.size()-1]>='0')
 214         {
 215                 // figure out how many digits it is
 216                 for(digits=0;(int)id.size()-1>=digits && id[id.size()-1-digits]<='9' && id[id.size()-1-digits]>='0';digits++)while(false);
 217
 218                 String str_number;
 219                 str_number=String(id,id.size()-digits,id.size());
 220                 id=String(id,0,id.size()-digits);
 221
 222                 number=atoi(str_number.c_str());
 223         }
 224         else
 225         {
 226                 number=1;
 227                 digits=3;
 228         }
 229
 230         number++;
 231
 232         // Add the number back onto the id
 233         {
 234                 const String format(strprintf("%%0%dd",digits));
 235                 id+=strprintf(format.c_str(),number);
 236         }
 237
 238         // Set the ID
 239         set_id(id);
 240 }
 241
 242 StateGradient_Context::StateGradient_Context(CanvasView* canvas_view):
 243         canvas_view_(canvas_view),
 244         is_working(*canvas_view),
 245         duckmatic_push(get_work_area()),
 246         settings(sinfgapp::Main::get_selected_input_device()->settings()),
 247         prev_workarea_layer_status_(get_work_area()->allow_layer_clicks),
 248         entry_id()
 249 {
 250         no_egress_on_selection_change=false;
 251         // Set up the tool options dialog
 252         ///options_table.attach(*manage(new Gtk::Label(_("Gradient Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 253         options_table.attach(entry_id, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 254
 255         enum_type.set_param_desc(ParamDesc("type")
 256                 .set_local_name(_("Gradient Type"))
 257                 .set_description(_("Determines the type of Gradient used"))
 258                 .set_hint("enum")
 259                 .add_enum_value(GRADIENT_INTERPOLATION_LINEAR,"linear",_("Linear"))
 260                 .add_enum_value(GRADIENT_RADIAL,"radial",_("Radial"))
 261                 .add_enum_value(GRADIENT_CONICAL,"conical",_("Conical"))
 262                 .add_enum_value(GRADIENT_SPIRAL,"spiral",_("Spiral")));
 263
 264         enum_blend.set_param_desc(ParamDesc(Color::BLEND_COMPOSITE,"blend_method")
 265                 .set_local_name(_("Blend Method"))
 266                 .set_description(_("The blend method the gradient will use")));
 267
 268         load_settings();
 269
 270         options_table.attach(enum_type, 0, 2, 2, 3, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 271         options_table.attach(enum_blend, 0, 2, 3, 4, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
 272
 273         options_table.show_all();
 274         refresh_tool_options();
 275         App::dialog_tool_options->present();
 276
 277
 278         // Turn off layer clicking
 279         get_work_area()->allow_layer_clicks=false;
 280
 281         get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR);
 282
 283         // clear out the ducks
 284         get_work_area()->clear_ducks();
 285
 286         // Refresh the work area
 287         get_work_area()->queue_draw();
 288
 289         get_work_area()->refresh_cursor();
 290
 291         // Hide the tables if they are showing
 292         get_canvas_view()->hide_tables();
 293
 294         // Hide the time bar
 295         //get_canvas_view()->hide_timebar();
 296
 297         // Connect a signal
 298         //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateGradient_Context::on_user_click));
 299
 300         App::toolbox->refresh();
 301 }
 302
 303 void
 304 StateGradient_Context::refresh_tool_options()
 305 {
 306         App::dialog_tool_options->clear();
 307         App::dialog_tool_options->set_widget(options_table);
 308         App::dialog_tool_options->set_local_name(_("Gradient Tool"));
 309         App::dialog_tool_options->set_name("gradient");
 310 }
 311
 312 Smach::event_result
 313 StateGradient_Context::event_refresh_tool_options(const Smach::event& x)
 314 {
 315         refresh_tool_options();
 316         return Smach::RESULT_ACCEPT;
 317 }
 318
 319 StateGradient_Context::~StateGradient_Context()
 320 {
 321         save_settings();
 322
 323         // Restore layer clicking
 324 //      get_work_area()->allow_layer_clicks=prev_workarea_layer_status_;
 325         get_work_area()->allow_layer_clicks=true;
 326         get_canvas_view()->work_area->reset_cursor();
 327
 328         App::dialog_tool_options->clear();
 329
 330         // Show the time bar
 331         if(get_canvas_view()->get_canvas()->rend_desc().get_time_start()!=get_canvas_view()->get_canvas()->rend_desc().get_time_end())
 332                 get_canvas_view()->show_timebar();
 333
 334         // Bring back the tables if they were out before
 335         //if(prev_table_status)get_canvas_view()->show_tables();
 336
 337         // Refresh the work area
 338         get_work_area()->queue_draw();
 339
 340         //get_canvas_view()->show_tables();
 341
 342         get_work_area()->refresh_cursor();
 343
 344         App::toolbox->refresh();
 345 }
 346
 347 Smach::event_result
 348 StateGradient_Context::event_stop_handler(const Smach::event& x)
 349 {
 350         throw Smach::egress_exception();
 351 }
 352
 353 Smach::event_result
 354 StateGradient_Context::event_refresh_handler(const Smach::event& x)
 355 {
 356         refresh_ducks();
 357         return Smach::RESULT_ACCEPT;
 358 }
 359
 360 void
 361 StateGradient_Context::make_gradient(const Point& _p1, const Point& _p2)
 362 {
 363         sinfgapp::Action::PassiveGrouper group(get_canvas_interface()->get_instance().get(),_("New Gradient"));
 364         sinfgapp::PushMode push_mode(get_canvas_interface(),sinfgapp::MODE_NORMAL);
 365
 366         Layer::Handle layer;
 367
 368         Canvas::Handle canvas(get_canvas_view()->get_canvas());
 369         int depth(0);
 370
 371         // we are temporarily using the layer to hold something
 372         layer=get_canvas_view()->get_selection_manager()->get_selected_layer();
 373         if(layer)
 374         {
 375                 depth=layer->get_depth();
 376                 canvas=layer->get_canvas();
 377         }
 378         const sinfg::TransformStack& transform(get_canvas_view()->get_curr_transform_stack());
 379         const Point p1(transform.unperform(_p1));
 380         const Point p2(transform.unperform(_p2));
 381
 382         switch(get_type())
 383         {
 384         case GRADIENT_INTERPOLATION_LINEAR:
 385
 386                 layer=get_canvas_interface()->add_layer_to("linear_gradient",canvas,depth);
 387                 layer->set_param("p1",p1);
 388                 get_canvas_interface()->signal_layer_param_changed()(layer,"p1");
 389                 layer->set_param("p2",p2);
 390                 get_canvas_interface()->signal_layer_param_changed()(layer,"p2");
 391                 break;
 392         case GRADIENT_RADIAL:
 393                 layer=get_canvas_interface()->add_layer_to("radial_gradient",canvas,depth);
 394                 layer->set_param("center",p1);
 395                 get_canvas_interface()->signal_layer_param_changed()(layer,"center");
 396                 layer->set_param("radius",(p2-p1).mag());
 397                 get_canvas_interface()->signal_layer_param_changed()(layer,"radius");
 398                 break;
 399         case GRADIENT_CONICAL:
 400                 layer=get_canvas_interface()->add_layer_to("conical_gradient",canvas,depth);
 401                 layer->set_param("center",p1);
 402                 get_canvas_interface()->signal_layer_param_changed()(layer,"center");
 403                 {
 404                         Vector diff(p2-p1);
 405                         layer->set_param("angle",Angle::tan(diff[1],diff[0]));
 406                         get_canvas_interface()->signal_layer_param_changed()(layer,"angle");
 407                 }
 408                 break;
 409         case GRADIENT_SPIRAL:
 410                 layer=get_canvas_interface()->add_layer_to("spiral_gradient",canvas,depth);
 411                 layer->set_param("center",p1);
 412                 get_canvas_interface()->signal_layer_param_changed()(layer,"center");
 413                 layer->set_param("radius",(p2-p1).mag());
 414                 get_canvas_interface()->signal_layer_param_changed()(layer,"radius");
 415                 {
 416                         Vector diff(p2-p1);
 417                         layer->set_param("angle",Angle::tan(diff[1],diff[0]));
 418                         get_canvas_interface()->signal_layer_param_changed()(layer,"angle");
 419                 }
 420                 break;
 421
 422         default:
 423                 return;
 424         }
 425
 426         layer->set_param("blend_method",get_blend());
 427         get_canvas_interface()->signal_layer_param_changed()(layer,"blend_method");
 428
 429         layer->set_description(get_id());
 430         get_canvas_interface()->signal_layer_new_description()(layer,layer->get_description());
 431
 432         no_egress_on_selection_change=true;
 433         get_canvas_interface()->get_selection_manager()->clear_selected_layers();
 434         get_canvas_interface()->get_selection_manager()->set_selected_layer(layer);
 435         no_egress_on_selection_change=false;
 436
 437         reset();
 438         increment_id();
 439 }
 440
 441 Smach::event_result
 442 StateGradient_Context::event_mouse_click_handler(const Smach::event& x)
 443 {
 444         const EventMouse& event(*reinterpret_cast<const EventMouse*>(&x));
 445
 446         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DOWN && event.button==BUTTON_LEFT)
 447         {
 448                 point_holder=get_work_area()->snap_point_to_grid(event.pos);
 449                 etl::handle<Duck> duck=new Duck();
 450                 duck->set_point(point_holder);
 451                 duck->set_name("p1");
 452                 duck->set_type(Duck::TYPE_POSITION);
 453                 get_work_area()->add_duck(duck);
 454
 455                 point2_duck=new Duck();
 456                 point2_duck->set_point(point_holder);
 457                 point2_duck->set_name("p2");
 458                 point2_duck->set_type(Duck::TYPE_POSITION);
 459                 get_work_area()->add_duck(point2_duck);
 460
 461                 handle<Duckmatic::Bezier> bezier(new Duckmatic::Bezier());
 462                 bezier->p1=bezier->c1=duck;
 463                 bezier->p2=bezier->c2=point2_duck;
 464                 get_work_area()->add_bezier(bezier);
 465
 466                 return Smach::RESULT_ACCEPT;
 467         }
 468
 469         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_DRAG && event.button==BUTTON_LEFT)
 470         {
 471                 point2_duck->set_point(get_work_area()->snap_point_to_grid(event.pos));
 472                 get_work_area()->queue_draw();
 473                 return Smach::RESULT_ACCEPT;
 474         }
 475
 476         if(event.key==EVENT_WORKAREA_MOUSE_BUTTON_UP && event.button==BUTTON_LEFT)
 477         {
 478                 make_gradient(point_holder, get_work_area()->snap_point_to_grid(event.pos));
 479                 get_work_area()->clear_ducks();
 480                 return Smach::RESULT_ACCEPT;
 481         }
 482
 483         return Smach::RESULT_OK;
 484 }
 485
 486
 487 void
 488 StateGradient_Context::refresh_ducks()
 489 {
 490         get_work_area()->clear_ducks();
 491         get_work_area()->queue_draw();
 492 }