X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-studio%2Ftags%2Fsynfigstudio_0_61_04%2Fsynfig-studio%2Fsrc%2Fgtkmm%2Fstate_zoom.cpp;fp=synfig-studio%2Ftags%2Fsynfigstudio_0_61_04%2Fsynfig-studio%2Fsrc%2Fgtkmm%2Fstate_zoom.cpp;h=e5a0e9b0b29fb905405246cebcb3dbb12952e481;hb=0bdacd51bd61b8001b2dd0bfa38559014dd1fcdb;hp=0000000000000000000000000000000000000000;hpb=7487e4795a61502db779e7e147df6020cc1c1c04;p=synfig.git diff --git a/synfig-studio/tags/synfigstudio_0_61_04/synfig-studio/src/gtkmm/state_zoom.cpp b/synfig-studio/tags/synfigstudio_0_61_04/synfig-studio/src/gtkmm/state_zoom.cpp new file mode 100644 index 0000000..e5a0e9b --- /dev/null +++ b/synfig-studio/tags/synfigstudio_0_61_04/synfig-studio/src/gtkmm/state_zoom.cpp @@ -0,0 +1,332 @@ +/* === S Y N F I G ========================================================= */ +/*! \file state_zoom.cpp +** \brief Zoom Toole Implementation File +** +** $Id: state_zoom.cpp,v 1.1.1.1 2005/01/07 03:34:37 darco Exp $ +** +** \legal +** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley +** +** This package is free software; you can redistribute it and/or +** modify it under the terms of the GNU General Public License as +** published by the Free Software Foundation; either version 2 of +** the License, or (at your option) any later version. +** +** This package is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +** General Public License for more details. +** \endlegal +*/ +/* ========================================================================= */ + +/* === H E A D E R S ======================================================= */ + +#ifdef USING_PCH +# include "pch.h" +#else +#ifdef HAVE_CONFIG_H +# include +#endif + +#include +#include + +#include +#include + + +#include "state_zoom.h" +#include "event_mouse.h" +#include "canvasview.h" +#include "workarea.h" +#include "app.h" +#include "dialog_tooloptions.h" +#include "toolbox.h" +#include + +#endif + +/* === U S I N G =========================================================== */ + +using namespace std; +using namespace etl; +using namespace synfig; +using namespace studio; + +/* === M A C R O S ========================================================= */ + +/* === G L O B A L S ======================================================= */ +StateZoom studio::state_zoom; + +const float ZOOMFACTOR = 1.25f; + +/* === C L A S S E S & S T R U C T S ======================================= */ + +class studio::StateZoom_Context : public sigc::trackable +{ + etl::handle canvas_view_; + CanvasView::IsWorking is_working; + + Point p1,p2; + + bool prev_workarea_layer_status_; + + //Toolbox settings + synfigapp::Settings& settings; + + //Toolbox display + Gtk::Table options_table; + +public: + + void refresh_tool_options(); //to refresh the toolbox + + //events + Smach::event_result event_stop_handler(const Smach::event& x); + Smach::event_result event_refresh_handler(const Smach::event& x); + Smach::event_result event_mouse_click_handler(const Smach::event& x); + Smach::event_result event_refresh_tool_options(const Smach::event& x); + + //constructor destructor + StateZoom_Context(CanvasView* canvas_view); + ~StateZoom_Context(); + + //Canvas interaction + const etl::handle& get_canvas_view()const{return canvas_view_;} + etl::handle get_canvas_interface()const{return canvas_view_->canvas_interface();} + synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();} + WorkArea * get_work_area()const{return canvas_view_->get_work_area();} + + //Modifying settings etc. + void load_settings(); + void save_settings(); + void reset(); + + //void zoom(const Point& p1, const Point& p2); + +}; // END of class StateGradient_Context + +/* === M E T H O D S ======================================================= */ + +StateZoom::StateZoom(): + Smach::state("zoom") +{ + insert(event_def(EVENT_STOP,&StateZoom_Context::event_stop_handler)); + insert(event_def(EVENT_REFRESH,&StateZoom_Context::event_refresh_handler)); + insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DOWN,&StateZoom_Context::event_mouse_click_handler)); + //insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_DRAG,&StateZoom_Context::event_mouse_click_handler)); + insert(event_def(EVENT_WORKAREA_BOX,&StateZoom_Context::event_mouse_click_handler)); + //insert(event_def(EVENT_WORKAREA_BUTTON_CLICK,&StateZoom_Context::event_mouse_click_handler)); + insert(event_def(EVENT_WORKAREA_MOUSE_BUTTON_UP,&StateZoom_Context::event_mouse_click_handler)); + insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateZoom_Context::event_refresh_tool_options)); +} + +StateZoom::~StateZoom() +{ +} + +void +StateZoom_Context::load_settings() +{ + String value; + + //parse the arguments yargh! + /*if(settings.get_value("circle.feather",value)) + set_feather(atof(value.c_str())); + else + set_feather(0);*/ +} + +void +StateZoom_Context::save_settings() +{ + //settings.set_value("circle.fallofftype",strprintf("%d",get_falloff())); +} + +void +StateZoom_Context::reset() +{ + //refresh_ducks(); +} + +StateZoom_Context::StateZoom_Context(CanvasView* canvas_view): + canvas_view_(canvas_view), + is_working(*canvas_view), + prev_workarea_layer_status_(get_work_area()->allow_layer_clicks), + settings(synfigapp::Main::get_selected_input_device()->settings()) +{ + // Set up the tool options dialog + //options_table.attach(*manage(new Gtk::Label(_("Zoom Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0); + + load_settings(); + + options_table.show_all(); + + refresh_tool_options(); + App::dialog_tool_options->present(); + + // Turn off layer clicking + get_work_area()->allow_layer_clicks=false; + + // clear out the ducks + get_work_area()->clear_ducks(); //??? + + // Refresh the work area + get_work_area()->queue_draw(); + + // Hide the tables if they are showing + //prev_table_status=get_canvas_view()->tables_are_visible(); + //if(prev_table_status)get_canvas_view()->hide_tables(); + + // Hide the time bar + //get_canvas_view()->hide_timebar(); + + // Connect a signal + //get_work_area()->signal_user_click().connect(sigc::mem_fun(*this,&studio::StateZoom_Context::on_user_click)); + get_canvas_view()->work_area->set_cursor(Gdk::CROSSHAIR); + + App::toolbox->refresh(); +} + +void +StateZoom_Context::refresh_tool_options() +{ + App::dialog_tool_options->clear(); + App::dialog_tool_options->set_widget(options_table); + App::dialog_tool_options->set_local_name(_("Zoom Tool")); + App::dialog_tool_options->set_name("zoom"); +} + +Smach::event_result +StateZoom_Context::event_refresh_tool_options(const Smach::event& x) +{ + refresh_tool_options(); + return Smach::RESULT_ACCEPT; +} + +StateZoom_Context::~StateZoom_Context() +{ + save_settings(); + + // Restore layer clicking + get_work_area()->allow_layer_clicks=prev_workarea_layer_status_; + get_canvas_view()->work_area->reset_cursor(); + + App::dialog_tool_options->clear(); + + // Show the time bar + if(get_canvas_view()->get_canvas()->rend_desc().get_time_start()!=get_canvas_view()->get_canvas()->rend_desc().get_time_end()) + get_canvas_view()->show_timebar(); + + // Bring back the tables if they were out before + //if(prev_table_status)get_canvas_view()->show_tables(); + + // Refresh the work area + get_work_area()->queue_draw(); + + App::toolbox->refresh(); + + get_canvas_view()->get_smach().process_event(EVENT_REFRESH_DUCKS); +} + +Smach::event_result +StateZoom_Context::event_stop_handler(const Smach::event& x) +{ + throw Smach::egress_exception(); +} + +Smach::event_result +StateZoom_Context::event_refresh_handler(const Smach::event& x) +{ + return Smach::RESULT_ACCEPT; +} + +Smach::event_result +StateZoom_Context::event_mouse_click_handler(const Smach::event& x) +{ + if(x.key==EVENT_WORKAREA_BOX) + { + const EventBox& event(*reinterpret_cast(&x)); + + if(event.button==BUTTON_LEFT) + { + //respond to event box... + + + //Center the new position at the center of the box + + //OH MY GOD HACK - the space is -1* and offset (by the value of the center of the canvas)... + Point newpos; + { + const Point evcenter = (event.p1+event.p2)/2; + const Point realcenter = (get_work_area()->get_window_tl() + get_work_area()->get_window_br())/2; + newpos = -(evcenter - realcenter) + get_work_area()->get_focus_point(); + } + + //The zoom will be whatever the required factor to convert current box size to desired box size + Point tl = get_work_area()->get_window_tl(); + Point br = get_work_area()->get_window_br(); + + Vector span = br - tl; + Vector v = event.p2 - event.p1; + + //get the minimum zoom as long as it's greater than 1... + v[0] = abs(v[0])/abs(span[0]); + v[1] = abs(v[1])/abs(span[1]); + + float zdiv = max(v[0],v[1]); + if(zdiv < 1 && zdiv > 0) //must be zoomable + { + get_work_area()->set_focus_point(newpos); + get_work_area()->set_zoom(get_work_area()->get_zoom()/zdiv); + } + + return Smach::RESULT_ACCEPT; + } + } + + if(x.key==EVENT_WORKAREA_MOUSE_BUTTON_UP) + { + const EventMouse& event(*reinterpret_cast(&x)); + + if(event.button==BUTTON_LEFT) + { + Point evpos; + + //make the event pos be in the same space... + // The weird ass inverted center normalized space... + { + const Point realcenter = (get_work_area()->get_window_tl() + get_work_area()->get_window_br())/2; + evpos = -(event.pos - realcenter) + get_work_area()->get_focus_point(); + } + + /* Zooming: + focus point must zoom about the point evpos... + + trans about an origin not 0: + p' = A(p - o) + o + */ + + Vector v = get_work_area()->get_focus_point() - evpos; + + if(event.modifier & Gdk::CONTROL_MASK) //zoom out... + { + v*=ZOOMFACTOR; + //get_work_area()->zoom_out(); + get_work_area()->set_focus_point(evpos + v); + get_work_area()->set_zoom(get_work_area()->get_zoom()/ZOOMFACTOR); + }else //zoom in + { + v/=ZOOMFACTOR; + //get_work_area()->zoom_in(); + get_work_area()->set_focus_point(evpos + v); + get_work_area()->set_zoom(get_work_area()->get_zoom()*ZOOMFACTOR); + } + + return Smach::RESULT_ACCEPT; + } + } + + return Smach::RESULT_OK; +}