144 lines
4.8 KiB
C++
144 lines
4.8 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 CERN
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* @author Tomasz Wlostowski <tomasz.wlostowski@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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/**
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* @file wx_view_controls.h
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* @brief WX_VIEW_CONTROLS class definition.
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*/
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#ifndef __WX_VIEW_CONTROLS_H
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#define __WX_VIEW_CONTROLS_H
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#include <wx/wx.h>
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#include <view/view_controls.h>
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class EDA_DRAW_PANEL_GAL;
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namespace KIGFX
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{
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/**
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* Class WX_VIEW_CONTROLS
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* is a specific implementation of class VIEW_CONTROLS for wxWidgets library.
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*/
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class WX_VIEW_CONTROLS : public VIEW_CONTROLS, public wxEvtHandler
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{
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public:
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WX_VIEW_CONTROLS( VIEW* aView, wxScrolledCanvas* aParentPanel );
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~WX_VIEW_CONTROLS()
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{}
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/// Handler functions
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void onWheel( wxMouseEvent& aEvent );
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void onMotion( wxMouseEvent& aEvent );
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#if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
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void onMagnify( wxMouseEvent& aEvent );
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#endif
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void onButton( wxMouseEvent& aEvent );
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void onEnter( wxMouseEvent& WXUNUSED( aEvent ) );
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void onLeave( wxMouseEvent& WXUNUSED( aEvent ) );
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void onTimer( wxTimerEvent& WXUNUSED( aEvent ) );
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void onScroll( wxScrollWinEvent& aEvent );
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/**
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* Function SetGrabMouse()
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* Enables/disables mouse cursor grabbing (limits the movement field only to the panel area).
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*
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* @param aEnabled says whether the option should be enabled or disabled.
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*/
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void SetGrabMouse( bool aEnabled ) override;
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/// @copydoc VIEW_CONTROLS::GetMousePosition()
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VECTOR2D GetMousePosition( bool aWorldCoordinates = true ) const override;
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using VIEW_CONTROLS::GetCursorPosition;
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/// @copydoc VIEW_CONTROLS::GetCursorPosition()
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VECTOR2D GetCursorPosition( bool aSnappingEnabled ) const override;
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/// @copydoc VIEW_CONTROLS::CursorWarp()
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void WarpCursor( const VECTOR2D& aPosition, bool aWorldCoordinates = false,
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bool aWarpView = false ) const override;
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/// @copydoc VIEW_CONTROLS::CenterOnCursor()
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void CenterOnCursor() const override;
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/// Adjusts the scrollbars position to match the current viewport.
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void UpdateScrollbars();
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/// Event that forces mouse move event in the dispatcher (eg. used in autopanning, when mouse
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/// cursor does not move in screen coordinates, but does in world coordinates)
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static const wxEventType EVT_REFRESH_MOUSE;
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private:
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/// Possible states for WX_VIEW_CONTROLS
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enum STATE
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{
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IDLE = 1, /// Nothing is happening
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DRAG_PANNING, /// Panning with mouse button pressed
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AUTO_PANNING, /// Panning on approaching borders of the frame
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};
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/**
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* Function handleAutoPanning()
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* Computes new viewport settings while in autopanning mode.
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*
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* @param aEvent is an event to be processed and decide if autopanning should happen.
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* @return true if it is currently autopanning (ie. autopanning is active and mouse cursor
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* is in the area that causes autopanning to happen).
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*/
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bool handleAutoPanning( const wxMouseEvent& aEvent );
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/// Current state of VIEW_CONTROLS
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STATE m_state;
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/// Panel that is affected by VIEW_CONTROLS
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wxScrolledCanvas* m_parentPanel;
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/// Stores information about point where dragging has started
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VECTOR2D m_dragStartPoint;
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/// Stores information about the center of viewport when dragging has started
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VECTOR2D m_lookStartPoint;
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/// Current direction of panning (only autopanning mode)
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VECTOR2D m_panDirection;
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/// Used for determining time intervals between scroll & zoom events
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wxLongLong m_timeStamp;
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/// Timer repsonsible for handling autopanning
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wxTimer m_panTimer;
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/// Ratio used for scaling world coordinates to scrollbar position.
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VECTOR2D m_scrollScale;
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/// Current scrollbar position
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VECTOR2I m_scrollPos;
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};
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} // namespace KIGFX
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#endif
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