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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright The KiCad Developers, see AUTHORS.txt for contributors.
*
* This program 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 3 of the License, or (at your
* option) any later version.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <class_draw_panel_gal.h>
#include <eda_draw_frame.h>
#include <preview_items/selection_area.h>
#include <tool/actions.h>
#include <tool/tool_manager.h>
#include <tool/zoom_tool.h>
#include <view/view.h>
#include <view/view_controls.h>
#include <math/vector2wx.h>
ZOOM_TOOL::ZOOM_TOOL() :
TOOL_INTERACTIVE( "common.Control.zoomTool" )
{
m_frame = nullptr;
}
ZOOM_TOOL::~ZOOM_TOOL() {}
bool ZOOM_TOOL::Init()
{
auto& ctxMenu = m_menu->GetMenu();
// cancel current tool goes in main context menu at the top if present
ctxMenu.AddItem( ACTIONS::cancelInteractive, SELECTION_CONDITIONS::ShowAlways, 1 );
ctxMenu.AddSeparator( 1 );
// Finally, add the standard zoom/grid items
getEditFrame<EDA_DRAW_FRAME>()->AddStandardSubMenus( *m_menu.get() );
return true;
}
void ZOOM_TOOL::Reset( RESET_REASON aReason )
{
m_frame = getEditFrame<EDA_DRAW_FRAME>();
}
int ZOOM_TOOL::Main( const TOOL_EVENT& aEvent )
{
m_frame->PushTool( aEvent );
auto setCursor =
[&]()
{
m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ZOOM_IN );
};
// Set initial cursor
setCursor();
while( TOOL_EVENT* evt = Wait() )
{
setCursor();
if( evt->IsCancelInteractive() || evt->IsActivate() )
{
break;
}
else if( evt->IsDrag( BUT_LEFT ) || evt->IsDrag( BUT_RIGHT ) )
{
if( selectRegion() )
break;
}
else if( evt->IsClick( BUT_RIGHT ) )
{
SELECTION dummy;
m_menu->ShowContextMenu( dummy );
}
else
{
evt->SetPassEvent();
}
}
// Exit zoom tool
m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
m_frame->PopTool( aEvent );
return 0;
}
bool ZOOM_TOOL::selectRegion()
{
bool cancelled = false;
KIGFX::VIEW* view = getView();
EDA_DRAW_PANEL_GAL* canvas = m_frame->GetCanvas();
getViewControls()->SetAutoPan( true );
KIGFX::PREVIEW::SELECTION_AREA area;
view->Add( &area );
while( TOOL_EVENT* evt = Wait() )
{
if( evt->IsCancelInteractive() || evt->IsActivate() )
{
cancelled = true;
break;
}
if( evt->IsDrag( BUT_LEFT ) || evt->IsDrag( BUT_RIGHT ) )
{
area.SetOrigin( evt->DragOrigin() );
area.SetEnd( evt->Position() );
view->SetVisible( &area, true );
view->Update( &area, KIGFX::GEOMETRY );
}
if( evt->IsMouseUp( BUT_LEFT ) || evt->IsMouseUp( BUT_RIGHT ) )
{
view->SetVisible( &area, false );
auto selectionBox = area.ViewBBox();
if( selectionBox.GetWidth() == 0 || selectionBox.GetHeight() == 0 )
{
break;
}
else
{
VECTOR2D sSize = view->ToWorld( ToVECTOR2I( canvas->GetClientSize() ), false );
VECTOR2D vSize = selectionBox.GetSize();
double scale;
double ratio = std::max( fabs( vSize.x / sSize.x ), fabs( vSize.y / sSize.y ) );
if( evt->IsMouseUp( BUT_LEFT ) )
scale = view->GetScale() / ratio;
else
scale = view->GetScale() * ratio;
view->SetScale( scale );
view->SetCenter( selectionBox.Centre() );
break;
}
}
}
view->SetVisible( &area, false );
view->Remove( &area );
getViewControls()->SetAutoPan( false );
return cancelled;
}
void ZOOM_TOOL::setTransitions()
{
Go( &ZOOM_TOOL::Main, ACTIONS::zoomTool.MakeEvent() );
}
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