**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2008 Chris Moore
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
#include "canvasview.h"
#include "workarea.h"
#include "app.h"
-#include "dialog_tooloptions.h"
#include "toolbox.h"
#include <synfigapp/main.h>
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);
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
+}; // END of class StateZoom_Context
/* === M E T H O D S ======================================================= */
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()->get_allow_layer_clicks()),
- settings(synfigapp::Main::get_selected_input_device()->settings())
+ prev_workarea_layer_status_(get_work_area()->get_allow_layer_clicks())
{
- // 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()->set_allow_layer_clicks(false);
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()->set_allow_layer_clicks(prev_workarea_layer_status_);
get_canvas_view()->work_area->reset_cursor();
- App::dialog_tool_options->clear();
-
// Enable the time bar
//get_canvas_view()->set_sensitive_timebar(true);
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 window_span = br - tl, window_middle = (br+tl)/2;
+ Vector box_span = event.p2 - event.p1, box_middle = (event.p1+event.p2)/2;
+ Point newpos;
+ float zoom;
- 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]);
+ if(event.modifier & Gdk::CONTROL_MASK) //zoom out...
+ {
+ if (window_span[0] == 0 || window_span[1] == 0) zoom = 1;
+ else zoom = max(abs(box_span[0]/window_span[0]), abs(box_span[1]/window_span[1]));
- float zdiv = max(v[0],v[1]);
- if(zdiv < 1 && zdiv > 0) //must be zoomable
+ // focus_point is -1 times the real position for some reason...
+ // center the window so the old contents fill the drawn box
+ newpos = -((window_middle - box_middle)/zoom + window_middle);
+ }
+ else // zoom in
{
- get_work_area()->set_focus_point(newpos);
- get_work_area()->set_zoom(get_work_area()->get_zoom()/zdiv);
+ if (box_span[0] == 0 || box_span[1] == 0) zoom = 1;
+ else zoom = min(abs(window_span[0]/box_span[0]), abs(window_span[1]/box_span[1]));
+
+ // center the window at the center of the box
+ newpos = -(-get_work_area()->get_focus_point() + (box_middle - window_middle));
}
+ get_work_area()->set_focus_point(newpos);
+ get_work_area()->set_zoom(get_work_area()->get_zoom()*zoom);
+
return Smach::RESULT_ACCEPT;
}
}
projects / synfig.git / blobdiff