721 lines
23 KiB
C++
721 lines
23 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2012 Torsten Hueter, torstenhtr <at> gmx.de
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* Copyright (C) 2013-2015 CERN
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* Copyright (C) 2012-2016 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
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* @author Maciej Suminski <maciej.suminski@cern.ch>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <pgm_base.h>
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#include <view/view.h>
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#include <view/wx_view_controls.h>
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#include <view/zoom_controller.h>
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#include <gal/graphics_abstraction_layer.h>
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#include <tool/tool_dispatcher.h>
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#include <math/util.h> // for KiROUND
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using namespace KIGFX;
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const wxEventType WX_VIEW_CONTROLS::EVT_REFRESH_MOUSE = wxNewEventType();
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static std::unique_ptr<ZOOM_CONTROLLER> GetZoomControllerForPlatform()
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{
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#ifdef __WXMAC__
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// On Apple pointer devices, wheel events occur frequently and with
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// smaller rotation values. For those devices, let's handle zoom
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// based on the rotation amount rather than the time difference.
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return std::make_unique<CONSTANT_ZOOM_CONTROLLER>( CONSTANT_ZOOM_CONTROLLER::MAC_SCALE );
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#elif __WXGTK3__
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// GTK3 is similar, but the scale constant is smaller
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return std::make_unique<CONSTANT_ZOOM_CONTROLLER>( CONSTANT_ZOOM_CONTROLLER::GTK3_SCALE );
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#else
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return std::make_unique<ACCELERATING_ZOOM_CONTROLLER>();
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#endif
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}
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WX_VIEW_CONTROLS::WX_VIEW_CONTROLS( VIEW* aView, wxScrolledCanvas* aParentPanel ) :
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VIEW_CONTROLS( aView ),
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m_state( IDLE ),
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m_parentPanel( aParentPanel ),
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m_scrollScale( 1.0, 1.0 ),
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#ifdef __WXGTK3__
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m_lastTimestamp( 0 ),
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#endif
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m_cursorPos( 0, 0 ),
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m_updateCursor( true )
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{
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bool enableMousewheelPan = false;
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bool enableZoomNoCenter = false;
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bool enableAutoPan = true;
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Pgm().CommonSettings()->Read( ENBL_MOUSEWHEEL_PAN_KEY, &enableMousewheelPan, false );
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Pgm().CommonSettings()->Read( ENBL_ZOOM_NO_CENTER_KEY, &enableZoomNoCenter, false );
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Pgm().CommonSettings()->Read( ENBL_AUTO_PAN_KEY, &enableAutoPan, true );
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m_settings.m_enableMousewheelPan = enableMousewheelPan;
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m_settings.m_warpCursor = !enableZoomNoCenter;
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m_settings.m_autoPanSettingEnabled = enableAutoPan;
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m_parentPanel->Connect( wxEVT_MOTION,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onMotion ), NULL, this );
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#if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
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m_parentPanel->Connect( wxEVT_MAGNIFY,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onMagnify ), NULL, this );
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#endif
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m_parentPanel->Connect( wxEVT_MOUSEWHEEL,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onWheel ), NULL, this );
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m_parentPanel->Connect( wxEVT_MIDDLE_UP,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onButton ), NULL, this );
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m_parentPanel->Connect( wxEVT_MIDDLE_DOWN,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onButton ), NULL, this );
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m_parentPanel->Connect( wxEVT_LEFT_UP,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onButton ), NULL, this );
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m_parentPanel->Connect( wxEVT_LEFT_DOWN,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onButton ), NULL, this );
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m_parentPanel->Connect( wxEVT_RIGHT_UP,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onButton ), NULL, this );
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m_parentPanel->Connect( wxEVT_RIGHT_DOWN,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onButton ), NULL, this );
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#if defined _WIN32 || defined _WIN64
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m_parentPanel->Connect( wxEVT_ENTER_WINDOW,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onEnter ), NULL, this );
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#endif
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m_parentPanel->Connect( wxEVT_LEAVE_WINDOW,
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wxMouseEventHandler( WX_VIEW_CONTROLS::onLeave ), NULL, this );
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m_parentPanel->Connect( wxEVT_SCROLLWIN_THUMBTRACK,
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wxScrollWinEventHandler( WX_VIEW_CONTROLS::onScroll ), NULL, this );
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m_parentPanel->Connect( wxEVT_SCROLLWIN_PAGEUP,
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wxScrollWinEventHandler( WX_VIEW_CONTROLS::onScroll ), NULL, this );
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m_parentPanel->Connect( wxEVT_SCROLLWIN_PAGEDOWN,
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wxScrollWinEventHandler( WX_VIEW_CONTROLS::onScroll ), NULL, this );
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m_parentPanel->Connect( wxEVT_SCROLLWIN_BOTTOM,
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wxScrollWinEventHandler( WX_VIEW_CONTROLS::onScroll ), NULL, this );
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m_parentPanel->Connect( wxEVT_SCROLLWIN_TOP,
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wxScrollWinEventHandler( WX_VIEW_CONTROLS::onScroll ), NULL, this );
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m_parentPanel->Connect( wxEVT_SCROLLWIN_LINEUP,
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wxScrollWinEventHandler( WX_VIEW_CONTROLS::onScroll ), NULL, this );
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m_parentPanel->Connect( wxEVT_SCROLLWIN_LINEDOWN,
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wxScrollWinEventHandler( WX_VIEW_CONTROLS::onScroll ), NULL, this );
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m_zoomController = GetZoomControllerForPlatform();
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m_cursorWarped = false;
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m_panTimer.SetOwner( this );
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this->Connect( wxEVT_TIMER, wxTimerEventHandler( WX_VIEW_CONTROLS::onTimer ), NULL, this );
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m_settings.m_lastKeyboardCursorPositionValid = false;
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m_settings.m_lastKeyboardCursorPosition = { 0.0, 0.0 };
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m_settings.m_lastKeyboardCursorCommand = 0;
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}
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WX_VIEW_CONTROLS::~WX_VIEW_CONTROLS()
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{
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wxConfigBase* cfg = Pgm().CommonSettings();
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if( cfg )
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{
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cfg->Write( ENBL_MOUSEWHEEL_PAN_KEY, m_settings.m_enableMousewheelPan );
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cfg->Write( ENBL_ZOOM_NO_CENTER_KEY, !m_settings.m_warpCursor );
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cfg->Write( ENBL_AUTO_PAN_KEY, m_settings.m_autoPanSettingEnabled );
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}
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}
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void WX_VIEW_CONTROLS::onMotion( wxMouseEvent& aEvent )
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{
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bool isAutoPanning = false;
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VECTOR2D mousePos( aEvent.GetX(), aEvent.GetY() );
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if( m_settings.m_autoPanEnabled && m_settings.m_autoPanSettingEnabled )
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isAutoPanning = handleAutoPanning( aEvent );
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if( !isAutoPanning && aEvent.Dragging() )
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{
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if( m_state == DRAG_PANNING )
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{
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VECTOR2D d = m_dragStartPoint - mousePos;
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VECTOR2D delta = m_view->ToWorld( d, false );
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m_view->SetCenter( m_lookStartPoint + delta );
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aEvent.StopPropagation();
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}
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}
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if( m_updateCursor ) // do not update the cursor position if it was explicitly set
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m_cursorPos = m_view->ToWorld( mousePos );
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else
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m_updateCursor = true;
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aEvent.Skip();
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}
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void WX_VIEW_CONTROLS::onWheel( wxMouseEvent& aEvent )
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{
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#ifdef __WXGTK3__
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if( aEvent.GetTimestamp() == m_lastTimestamp )
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{
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aEvent.Skip( false );
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return;
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}
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m_lastTimestamp = aEvent.GetTimestamp();
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#endif
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const double wheelPanSpeed = 0.001;
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const int axis = aEvent.GetWheelAxis();
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// mousewheelpan disabled:
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// wheel + ctrl -> horizontal scrolling;
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// wheel + shift -> vertical scrolling;
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// wheel -> zooming;
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// mousewheelpan enabled:
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// wheel -> pan;
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// wheel + ctrl -> zooming;
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// wheel + shift -> horizontal scrolling.
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if( ( !m_settings.m_enableMousewheelPan && ( aEvent.ControlDown() || aEvent.ShiftDown() ) ) ||
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( m_settings.m_enableMousewheelPan && !aEvent.ControlDown() ) )
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{
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// Scrolling
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VECTOR2D scrollVec = m_view->ToWorld( m_view->GetScreenPixelSize(), false ) *
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( (double) aEvent.GetWheelRotation() * wheelPanSpeed );
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double scrollX = 0.0;
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double scrollY = 0.0;
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if( m_settings.m_enableMousewheelPan )
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{
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if ( axis == wxMOUSE_WHEEL_HORIZONTAL || aEvent.ShiftDown() )
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scrollX = scrollVec.x;
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else
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scrollY = -scrollVec.y;
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}
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else
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{
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if( aEvent.ControlDown() )
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scrollX = -scrollVec.x;
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else
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scrollY = -scrollVec.y;
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}
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VECTOR2D delta( scrollX, scrollY );
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m_view->SetCenter( m_view->GetCenter() + delta );
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refreshMouse();
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}
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else
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{
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// Restrict zoom handling to the vertical axis, otherwise horizontal
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// scrolling events (e.g. touchpads and some mice) end up interpreted
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// as vertical scroll events and confuse the user.
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if( axis == wxMOUSE_WHEEL_VERTICAL )
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{
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const int rotation = aEvent.GetWheelRotation();
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const double zoomScale = m_zoomController->GetScaleForRotation( rotation );
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if( IsCursorWarpingEnabled() )
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{
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CenterOnCursor();
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m_view->SetScale( m_view->GetScale() * zoomScale );
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}
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else
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{
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const VECTOR2D anchor = m_view->ToWorld( VECTOR2D( aEvent.GetX(), aEvent.GetY() ) );
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m_view->SetScale( m_view->GetScale() * zoomScale, anchor );
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}
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}
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}
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// Do not skip this event, otherwise wxWidgets will fire
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// 3 wxEVT_SCROLLWIN_LINEUP or wxEVT_SCROLLWIN_LINEDOWN (normal wxWidgets behavior)
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// and we do not want that.
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m_parentPanel->Refresh();
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}
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#if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
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void WX_VIEW_CONTROLS::onMagnify( wxMouseEvent& aEvent )
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{
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// Scale based on the magnification from our underlying magnification event.
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VECTOR2D anchor = m_view->ToWorld( VECTOR2D( aEvent.GetX(), aEvent.GetY() ) );
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m_view->SetScale( m_view->GetScale() * ( aEvent.GetMagnification() + 1.0f ), anchor );
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aEvent.Skip();
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}
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#endif
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void WX_VIEW_CONTROLS::onButton( wxMouseEvent& aEvent )
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{
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switch( m_state )
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{
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case IDLE:
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case AUTO_PANNING:
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if( aEvent.MiddleDown() ||
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( aEvent.LeftDown() && m_settings.m_panWithLeftButton ) ||
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( aEvent.RightDown() && m_settings.m_panWithRightButton ) )
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{
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m_dragStartPoint = VECTOR2D( aEvent.GetX(), aEvent.GetY() );
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m_lookStartPoint = m_view->GetCenter();
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m_state = DRAG_PANNING;
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}
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if( aEvent.LeftUp() )
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m_state = IDLE; // Stop autopanning when user release left mouse button
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break;
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case DRAG_PANNING:
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if( aEvent.MiddleUp() || aEvent.LeftUp() || aEvent.RightUp() )
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m_state = IDLE;
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break;
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}
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aEvent.Skip();
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}
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void WX_VIEW_CONTROLS::onEnter( wxMouseEvent& aEvent )
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{
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m_parentPanel->SetFocus();
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}
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void WX_VIEW_CONTROLS::onLeave( wxMouseEvent& aEvent )
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{
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if( m_settings.m_cursorCaptured )
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{
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bool warp = false;
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int x = aEvent.GetX();
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int y = aEvent.GetY();
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wxSize parentSize = m_parentPanel->GetClientSize();
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if( x < 0 )
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{
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x = 0;
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warp = true;
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}
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else if( x >= parentSize.x )
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{
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x = parentSize.x - 1;
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warp = true;
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}
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if( y < 0 )
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{
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y = 0;
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warp = true;
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}
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else if( y >= parentSize.y )
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{
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y = parentSize.y - 1;
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warp = true;
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}
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if( warp )
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m_parentPanel->WarpPointer( x, y );
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}
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}
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void WX_VIEW_CONTROLS::onTimer( wxTimerEvent& aEvent )
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{
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switch( m_state )
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{
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case AUTO_PANNING:
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{
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if( !m_settings.m_autoPanEnabled )
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{
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m_state = IDLE;
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return;
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}
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if( !m_parentPanel->HasFocus() )
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break;
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double borderSize = std::min( m_settings.m_autoPanMargin * m_view->GetScreenPixelSize().x,
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m_settings.m_autoPanMargin * m_view->GetScreenPixelSize().y );
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VECTOR2D dir( m_panDirection );
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if( dir.EuclideanNorm() > borderSize / 2 )
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dir = dir.Resize( pow( borderSize, m_settings.m_autoPanAcceleration ) );
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else if( dir.EuclideanNorm() > borderSize )
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dir = dir.Resize( borderSize );
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dir = m_view->ToWorld( dir, false );
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m_view->SetCenter( m_view->GetCenter() + dir );
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refreshMouse();
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}
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break;
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case IDLE: // Just remove unnecessary warnings
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case DRAG_PANNING:
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break;
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}
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}
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void WX_VIEW_CONTROLS::onScroll( wxScrollWinEvent& aEvent )
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{
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const double linePanDelta = 0.05;
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const double pagePanDelta = 0.5;
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int type = aEvent.GetEventType();
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int dir = aEvent.GetOrientation();
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if( type == wxEVT_SCROLLWIN_THUMBTRACK )
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{
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auto center = m_view->GetCenter();
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const auto& boundary = m_view->GetBoundary();
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// Flip scroll direction in flipped view
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const double xstart = ( m_view->IsMirroredX() ?
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boundary.GetRight() : boundary.GetLeft() );
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const double xdelta = ( m_view->IsMirroredX() ? -1 : 1 );
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if( dir == wxHORIZONTAL )
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center.x = xstart + xdelta * ( aEvent.GetPosition() / m_scrollScale.x );
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else
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center.y = boundary.GetTop() + aEvent.GetPosition() / m_scrollScale.y;
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m_view->SetCenter( center );
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}
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else
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{
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double dist = 0;
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if( type == wxEVT_SCROLLWIN_PAGEUP )
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dist = pagePanDelta;
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else if( type == wxEVT_SCROLLWIN_PAGEDOWN )
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dist = -pagePanDelta;
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else if( type == wxEVT_SCROLLWIN_LINEUP )
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dist = linePanDelta;
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else if( type == wxEVT_SCROLLWIN_LINEDOWN )
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dist = -linePanDelta;
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else
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{
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wxASSERT( "Unhandled event type" );
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return;
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}
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VECTOR2D scroll = m_view->ToWorld( m_view->GetScreenPixelSize(), false ) * dist;
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double scrollX = 0.0;
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double scrollY = 0.0;
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if ( dir == wxHORIZONTAL )
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scrollX = -scroll.x;
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else
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scrollY = -scroll.y;
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VECTOR2D delta( scrollX, scrollY );
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m_view->SetCenter( m_view->GetCenter() + delta );
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}
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m_parentPanel->Refresh();
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}
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void WX_VIEW_CONTROLS::SetGrabMouse( bool aEnabled )
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{
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if( aEnabled && !m_settings.m_grabMouse )
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m_parentPanel->CaptureMouse();
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else if( !aEnabled && m_settings.m_grabMouse )
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m_parentPanel->ReleaseMouse();
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VIEW_CONTROLS::SetGrabMouse( aEnabled );
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}
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VECTOR2D WX_VIEW_CONTROLS::GetMousePosition( bool aWorldCoordinates ) const
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{
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wxPoint msp = getMouseScreenPosition();
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VECTOR2D screenPos( msp.x, msp.y );
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return aWorldCoordinates ? m_view->ToWorld( screenPos ) : screenPos;
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}
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VECTOR2D WX_VIEW_CONTROLS::GetRawCursorPosition( bool aEnableSnapping ) const
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{
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if( aEnableSnapping )
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{
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return m_view->GetGAL()->GetGridPoint( m_cursorPos );
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}
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else
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{
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return m_cursorPos;
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}
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}
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VECTOR2D WX_VIEW_CONTROLS::GetCursorPosition( bool aEnableSnapping ) const
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{
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if( m_settings.m_forceCursorPosition )
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{
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return m_settings.m_forcedPosition;
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}
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else
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{
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return GetRawCursorPosition( aEnableSnapping );
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}
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}
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void WX_VIEW_CONTROLS::SetCursorPosition( const VECTOR2D& aPosition, bool aWarpView,
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bool aTriggeredByArrows, long aArrowCommand )
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{
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m_updateCursor = false;
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if( aTriggeredByArrows )
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{
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m_settings.m_lastKeyboardCursorPositionValid = true;
|
|
m_settings.m_lastKeyboardCursorPosition = aPosition;
|
|
m_settings.m_lastKeyboardCursorCommand = aArrowCommand;
|
|
m_cursorWarped = false;
|
|
}
|
|
else
|
|
{
|
|
m_settings.m_lastKeyboardCursorPositionValid = false;
|
|
m_settings.m_lastKeyboardCursorPosition = { 0.0, 0.0 };
|
|
m_settings.m_lastKeyboardCursorCommand = 0;
|
|
m_cursorWarped = true;
|
|
}
|
|
|
|
WarpCursor( aPosition, true, aWarpView );
|
|
m_cursorPos = aPosition;
|
|
}
|
|
|
|
|
|
void WX_VIEW_CONTROLS::SetCrossHairCursorPosition( const VECTOR2D& aPosition, bool aWarpView = true )
|
|
{
|
|
m_updateCursor = false;
|
|
|
|
const VECTOR2I& screenSize = m_view->GetGAL()->GetScreenPixelSize();
|
|
BOX2I screen( VECTOR2I( 0, 0 ), screenSize );
|
|
VECTOR2D screenPos = m_view->ToScreen( aPosition );
|
|
|
|
if( aWarpView && !screen.Contains( screenPos ) )
|
|
m_view->SetCenter( aPosition );
|
|
|
|
m_cursorPos = aPosition;
|
|
}
|
|
|
|
|
|
void WX_VIEW_CONTROLS::WarpCursor( const VECTOR2D& aPosition, bool aWorldCoordinates,
|
|
bool aWarpView )
|
|
{
|
|
if( aWorldCoordinates )
|
|
{
|
|
const VECTOR2I& screenSize = m_view->GetGAL()->GetScreenPixelSize();
|
|
BOX2I screen( VECTOR2I( 0, 0 ), screenSize );
|
|
VECTOR2D screenPos = m_view->ToScreen( aPosition );
|
|
|
|
if( !screen.Contains( screenPos ) )
|
|
{
|
|
if( aWarpView )
|
|
{
|
|
m_view->SetCenter( aPosition );
|
|
m_parentPanel->WarpPointer( screenSize.x / 2, screenSize.y / 2 );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_parentPanel->WarpPointer( screenPos.x, screenPos.y );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_parentPanel->WarpPointer( aPosition.x, aPosition.y );
|
|
}
|
|
|
|
refreshMouse();
|
|
}
|
|
|
|
|
|
void WX_VIEW_CONTROLS::CenterOnCursor() const
|
|
{
|
|
const VECTOR2I& screenSize = m_view->GetGAL()->GetScreenPixelSize();
|
|
VECTOR2I screenCenter( screenSize / 2 );
|
|
|
|
if( GetMousePosition( false ) != screenCenter )
|
|
{
|
|
m_view->SetCenter( GetCursorPosition() );
|
|
m_parentPanel->WarpPointer( KiROUND( screenSize.x / 2 ), KiROUND( screenSize.y / 2 ) );
|
|
}
|
|
}
|
|
|
|
|
|
bool WX_VIEW_CONTROLS::handleAutoPanning( const wxMouseEvent& aEvent )
|
|
{
|
|
VECTOR2I p( aEvent.GetX(), aEvent.GetY() );
|
|
VECTOR2I pKey( m_view->ToScreen(m_settings.m_lastKeyboardCursorPosition ) );
|
|
|
|
if( m_cursorWarped || (m_settings.m_lastKeyboardCursorPositionValid && (p == pKey)) )
|
|
{
|
|
// last cursor move event came from keyboard cursor control. If auto-panning is enabled and
|
|
// the next position is inside the autopan zone, check if it really came from a mouse event, otherwise
|
|
// disable autopan temporarily. Also temporaly disable autopan if the cursor is in the autopan zone
|
|
// because the application warped the cursor.
|
|
|
|
m_cursorWarped = false;
|
|
return true;
|
|
}
|
|
|
|
m_cursorWarped = false;
|
|
|
|
// Compute areas where autopanning is active
|
|
int borderStart = std::min( m_settings.m_autoPanMargin * m_view->GetScreenPixelSize().x,
|
|
m_settings.m_autoPanMargin * m_view->GetScreenPixelSize().y );
|
|
borderStart = std::max( borderStart, 2 );
|
|
int borderEndX = m_view->GetScreenPixelSize().x - borderStart;
|
|
int borderEndY = m_view->GetScreenPixelSize().y - borderStart;
|
|
|
|
if( p.x < borderStart )
|
|
m_panDirection.x = -( borderStart - p.x );
|
|
else if( p.x > borderEndX )
|
|
m_panDirection.x = ( p.x - borderEndX );
|
|
else
|
|
m_panDirection.x = 0;
|
|
|
|
if( p.y < borderStart )
|
|
m_panDirection.y = -( borderStart - p.y );
|
|
else if( p.y > borderEndY )
|
|
m_panDirection.y = ( p.y - borderEndY );
|
|
else
|
|
m_panDirection.y = 0;
|
|
|
|
bool borderHit = ( m_panDirection.x != 0 || m_panDirection.y != 0 );
|
|
|
|
switch( m_state )
|
|
{
|
|
case AUTO_PANNING:
|
|
if( !borderHit )
|
|
{
|
|
m_panTimer.Stop();
|
|
m_state = IDLE;
|
|
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
break;
|
|
|
|
case IDLE:
|
|
if( borderHit )
|
|
{
|
|
m_state = AUTO_PANNING;
|
|
m_panTimer.Start( (int) ( 250.0 / 60.0 ) );
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
break;
|
|
|
|
case DRAG_PANNING:
|
|
return false;
|
|
}
|
|
|
|
wxASSERT_MSG( false, wxT( "This line should never be reached" ) );
|
|
return false; // Should not be reached, just avoid the compiler warnings..
|
|
}
|
|
|
|
|
|
void WX_VIEW_CONTROLS::refreshMouse()
|
|
{
|
|
// Notify tools that the cursor position has changed in the world coordinates
|
|
wxMouseEvent moveEvent( EVT_REFRESH_MOUSE );
|
|
wxPoint msp = getMouseScreenPosition();
|
|
moveEvent.SetX( msp.x );
|
|
moveEvent.SetY( msp.y );
|
|
|
|
// Set the modifiers state
|
|
moveEvent.SetControlDown( wxGetKeyState( WXK_CONTROL ) );
|
|
moveEvent.SetShiftDown( wxGetKeyState( WXK_SHIFT ) );
|
|
moveEvent.SetAltDown( wxGetKeyState( WXK_ALT ) );
|
|
|
|
m_cursorPos = m_view->ToWorld( VECTOR2D( msp.x, msp.y ) );
|
|
wxPostEvent( m_parentPanel, moveEvent );
|
|
}
|
|
|
|
|
|
wxPoint WX_VIEW_CONTROLS::getMouseScreenPosition() const
|
|
{
|
|
wxPoint msp = wxGetMousePosition();
|
|
m_parentPanel->ScreenToClient( &msp.x, &msp.y );
|
|
return msp;
|
|
}
|
|
|
|
|
|
void WX_VIEW_CONTROLS::UpdateScrollbars()
|
|
{
|
|
const BOX2D viewport = m_view->GetViewport();
|
|
const BOX2D& boundary = m_view->GetBoundary();
|
|
|
|
m_scrollScale.x = 2e3 / viewport.GetWidth(); // TODO it does not have to be updated so often
|
|
m_scrollScale.y = 2e3 / viewport.GetHeight();
|
|
VECTOR2I newScroll( ( viewport.Centre().x - boundary.GetLeft() ) * m_scrollScale.x,
|
|
( viewport.Centre().y - boundary.GetTop() ) * m_scrollScale.y );
|
|
|
|
// We add the width of the scroll bar thumb to the range because the scroll range is given by
|
|
// the full bar while the position is given by the left/top position of the thumb
|
|
VECTOR2I newRange( m_scrollScale.x * boundary.GetWidth() + m_parentPanel->GetScrollThumb( wxSB_HORIZONTAL ),
|
|
m_scrollScale.y * boundary.GetHeight() + m_parentPanel->GetScrollThumb( wxSB_VERTICAL ) );
|
|
|
|
// Flip scroll direction in flipped view
|
|
if( m_view->IsMirroredX() )
|
|
newScroll.x = ( boundary.GetRight() - viewport.Centre().x ) * m_scrollScale.x;
|
|
|
|
// Adjust scrollbars only if it is needed. Otherwise there are cases when canvas is continuously
|
|
// refreshed (Windows)
|
|
if( m_scrollPos != newScroll || newRange.x != m_parentPanel->GetScrollRange( wxSB_HORIZONTAL )
|
|
|| newRange.y != m_parentPanel->GetScrollRange( wxSB_VERTICAL ) )
|
|
{
|
|
m_parentPanel->SetScrollbars( 1, 1, newRange.x, newRange.y, newScroll.x, newScroll.y, true );
|
|
m_scrollPos = newScroll;
|
|
|
|
#ifndef __APPLE__
|
|
// Trigger a mouse refresh to get the canvas update in GTK (re-draws the scrollbars).
|
|
// Note that this causes an infinite loop on OSX as it generates a paint event.
|
|
refreshMouse();
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void WX_VIEW_CONTROLS::ForceCursorPosition( bool aEnabled, const VECTOR2D& aPosition )
|
|
{
|
|
m_settings.m_forceCursorPosition = aEnabled;
|
|
m_settings.m_forcedPosition = aPosition;
|
|
}
|