/* === S Y N F I G ========================================================= */
/*! \file renderer_dragbox.cpp
** \brief Renderer_Dragbox class is used to display in the workarea
** the interactive selection box, and select workarea objects (actually handles)
** accordingly to the shift/control modifier keys.
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2011 Nikita Kitaev
** Copyright (c) 2015 Blanchi Jérôme
**
** 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 <config.h>
#endif
#include <synfig/general.h>
#include "renderer_dragbox.h"
#include "workarea.h"
#include <ETL/misc>
#include <gui/localization.h>
#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 ======================================================= */
/* === P R O C E D U R E S ================================================= */
/* === M E T H O D S ======================================================= */
Renderer_Dragbox::~Renderer_Dragbox()
{
}
const synfig::Point&
Renderer_Dragbox::get_drag_point()const
{
return get_work_area()->get_drag_point();
}
const synfig::Point&
Renderer_Dragbox::get_curr_point()const
{
return get_work_area()->get_cursor_pos();
}
bool
Renderer_Dragbox::get_enabled_vfunc()const
{ return get_work_area()->get_drag_mode() == WorkArea::DRAG_BOX; }
bool
Renderer_Dragbox::event_vfunc(GdkEvent* event)
{
switch(event->type)
{
case GDK_BUTTON_PRESS:
{
// Seems to be not received ! event_mask ?
}
break;
case GDK_MOTION_NOTIFY:
{
//!TODO : Make HARDCODED shortcut key access configure ready.
if(get_work_area()->get_drag_mode() == WorkArea::DRAG_BOX)
{
if (drag_paused)
{
//! Save the handles (ducks) selection and global context
handles_all_ = get_work_area()->get_duck_list();
handles_selected_= get_work_area()->get_selected_ducks();
DuckList::const_iterator iter;
//! The selection context guid set is used for quicker lookup
handles_selected_guid_.clear();
for(iter=handles_selected_.begin();iter!=handles_selected_.end();++iter)
handles_selected_guid_.insert((*iter)->get_guid());
drag_paused = false;
//! Do nothing this time.
break;
}
const synfig::Point& curr_point(get_curr_point());
const synfig::Point& drag_point(get_drag_point());
Gdk::ModifierType modifier(Gdk::ModifierType(0));
modifier = Gdk::ModifierType(event->button.state);
// UI SPECIFICATION : When dragging a box around some handles (ducks):
// SHIFT selects; CTRL toggles; SHIFT+CTRL unselects; <none> clears all then selects
// CTRL Has priority under SHIFT
//! Start by cleaning the field
get_work_area()->clear_selected_ducks();
if(modifier&(GDK_SHIFT_MASK|GDK_CONTROL_MASK))
{
DuckList::const_iterator iter;
for(iter=handles_selected_.begin();iter!=handles_selected_.end();++iter)
{
get_work_area()->select_duck((*iter));
}
if (modifier&GDK_CONTROL_MASK)
{
//! Treat what's in the box accordingly to the selection context
DuckList handles_in_box = get_work_area()->get_ducks_in_box(drag_point,curr_point);
for(iter=handles_in_box.begin();iter!=handles_in_box.end();++iter)
{
//! Do the job only on selectable handles (not origin handle)
if(get_work_area()->is_duck_group_selectable(*iter))
{
if(!handles_selected_guid_.count((*iter)->get_guid()))
get_work_area()->select_duck((*iter));
else
get_work_area()->unselect_duck((*iter));
}
}
}
}
if (!(modifier&GDK_CONTROL_MASK))
{
get_work_area()->select_ducks_in_box(drag_point,curr_point);
}
}
}
break;
case GDK_BUTTON_RELEASE:
{
drag_paused = true;
}
break;
default:
break;
}
return false;
}
void
Renderer_Dragbox::render_vfunc(
const Glib::RefPtr<Gdk::Window>& drawable,
const Gdk::Rectangle& /*expose_area*/
)
{
assert(get_work_area());
if(!get_work_area() || drag_paused)
return;
// const synfig::Vector focus_point(get_work_area()->get_focus_point());
// Warning : Unused focus_point
//int drawable_w = drawable->get_width();
// Warning : Unused drawable_w
//int drawable_h = drawable->get_height();
// Warning : Unused drawable_h
Cairo::RefPtr<Cairo::Context> cr = drawable->create_cairo_context();
const synfig::Vector::value_type window_startx(get_work_area()->get_window_tl()[0]);
const synfig::Vector::value_type window_starty(get_work_area()->get_window_tl()[1]);
const float pw(get_pw()),ph(get_ph());
const synfig::Point& curr_point(get_curr_point());
const synfig::Point& drag_point(get_drag_point());
{
//!TODO : make HARDCODED Ui specification configure ready
cr->save();
cr->set_line_cap(Cairo::LINE_CAP_BUTT);
cr->set_line_join(Cairo::LINE_JOIN_MITER);
cr->set_antialias(Cairo::ANTIALIAS_NONE);
cr->set_line_width(1.0);
cr->set_source_rgb(GDK_COLOR_TO_RGB(DRAGBOX_COLOR_OUTLINE));
std::valarray<double> dashes(2);
dashes[0]=5.0;
dashes[1]=5.0;
cr->set_dash(dashes, 0);
Point tl(std::min(drag_point[0],curr_point[0]),std::min(drag_point[1],curr_point[1]));
Point br(std::max(drag_point[0],curr_point[0]),std::max(drag_point[1],curr_point[1]));
tl[0]=(tl[0]-window_startx)/pw;
tl[1]=(tl[1]-window_starty)/ph;
br[0]=(br[0]-window_startx)/pw;
br[1]=(br[1]-window_starty)/ph;
if(tl[0]>br[0])
swap(tl[0],br[0]);
if(tl[1]>br[1])
swap(tl[1],br[1]);
cr->rectangle(
tl[0],
tl[1],
br[0]-tl[0],
br[1]-tl[1]
);
cr->stroke();
cr->restore();
}
}