361 lines
12 KiB
C++
361 lines
12 KiB
C++
/******************************
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* drawpanel.h:
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* define class EDA_DRAW_PANEL
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*************************************/
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#ifndef PANEL_WXSTRUCT_H
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#define PANEL_WXSTRUCT_H
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#include "colors.h"
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#include "base_struct.h"
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#include <wx/overlay.h>
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class EDA_DRAW_FRAME;
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class BASE_SCREEN;
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class PCB_SCREEN;
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/**
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* Mouse capture callback function prototype.
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*/
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typedef void ( *MOUSE_CAPTURE_CALLBACK )( EDA_DRAW_PANEL* aPanel, wxDC* aDC,
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const wxPoint& aPosition, bool aErase );
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/**
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* End mouse capture callback function prototype.
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*/
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typedef void ( *END_MOUSE_CAPTURE_CALLBACK )( EDA_DRAW_PANEL* aPanel, wxDC* aDC );
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class EDA_DRAW_PANEL : public wxScrolledWindow
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{
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private:
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int m_currentCursor; ///< Current mouse cursor shape id.
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int m_defaultCursor; ///< The default mouse cursor shape id.
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bool m_showCrossHair; ///< Indicate if cross hair is to be shown.
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int m_cursorLevel; ///< Index for cursor redraw in XOR mode.
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public:
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EDA_RECT m_ClipBox; // the clipbox used in screen redraw (usually gives the
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// visible area in internal units)
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wxPoint m_CursorStartPos; // useful in testing the cursor movement
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int m_scrollIncrementX; // X axis scroll increment in pixels per unit.
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int m_scrollIncrementY; // Y axis scroll increment in pixels per unit.
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bool m_AbortRequest; // Flag to abort long commands
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bool m_AbortEnable; // TRUE if abort button or menu to be displayed
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bool m_AutoPAN_Enable; // TRUE to allow auto pan
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bool m_AutoPAN_Request; // TRUE to request an auto pan (will be made only if
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// m_AutoPAN_Enable = true)
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int m_IgnoreMouseEvents; // when non-zero (true), then ignore mouse events
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bool m_Block_Enable; // TRUE to accept Block Commands
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// useful to avoid false start block in certain cases
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// (like switch from a sheet to an other sheet
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int m_CanStartBlock; // >= 0 (or >= n) if a block can start
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bool m_PrintIsMirrored; // True when drawing in mirror mode. Used in draw arc function,
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// because arcs are oriented, and in mirror mode, orientations
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// are reversed
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#ifdef USE_WX_OVERLAY
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// MAC Uses overlay to workaround the wxINVERT and wxXOR miss
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wxOverlay m_overlay;
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#endif
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/* Cursor management (used in editing functions) */
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/* Mouse capture move callback function. */
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MOUSE_CAPTURE_CALLBACK m_mouseCaptureCallback;
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/* Abort mouse capture callback function. */
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END_MOUSE_CAPTURE_CALLBACK m_endMouseCaptureCallback;
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public:
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EDA_DRAW_PANEL( EDA_DRAW_FRAME* parent, int id, const wxPoint& pos, const wxSize& size );
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~EDA_DRAW_PANEL();
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BASE_SCREEN* GetScreen();
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virtual EDA_DRAW_FRAME* GetParent();
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void OnPaint( wxPaintEvent& event );
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/**
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* Function DrawBackGround
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* @param DC = current Device Context
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* Draws (if allowed) :
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* the grid
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* X and Y axis
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* X and Y auxiliary axis
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*/
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void DrawBackGround( wxDC* DC );
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/**
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* Function DrawGrid
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* draws a grid to \a aDC.
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* @see m_ClipBox to determine the damaged area of the drawing to draw the grid.
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* @see EDA_DRAW_FRAME::IsGridVisible() to determine if grid is shown.
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* @see EDA_DRAW_FRAME::GetGridColor() for the color of the grid.
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* @param aDC The device context to draw the grid.
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*/
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void DrawGrid( wxDC* aDC );
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/**
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* Function DrawAuxiliaryAxis
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* Draw the Auxiliary Axis, used in Pcbnew which as origin coordinates
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* for gerber and excellon files
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* @param aDC = current Device Context
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* @param aDrawMode = draw mode (GR_COPY, GR_OR ..)
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*/
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void DrawAuxiliaryAxis( wxDC* aDC, int aDrawMode );
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/**
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* Function DrawGridAxis
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* Draw on auxiliary axis, used in Pcbnew to show grid origin, when
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* the grid origin is set by user, and is not (0,0)
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* @param aDC = current Device Context
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* @param aDrawMode = draw mode (GR_COPY, GR_OR ..)
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*/
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void DrawGridAxis( wxDC* aDC, int aDrawMode );
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void OnEraseBackground( wxEraseEvent& event ) { }
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/**
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* Function OnActivate
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* handles window activation events.
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* <p>
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* The member m_CanStartBlock is initialize to avoid a block start command on activation
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* (because a left mouse button can be pressed and no block command wanted. This happens
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* when enter on a hierarchy sheet on double click.
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*</p>
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*/
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void OnActivate( wxActivateEvent& event );
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/**
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* Function DoPrepareDC
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* sets up the device context \a aDC for drawing.
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* <p>
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* This overrides wxScrolledWindow::DoPrepareDC() for setting up the the device context
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* used for drawing. The scale factor and drawing logical offset are set and the base
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* method is called to set the DC device origin (scroll bar position). This connects
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* everything together to achieve the appropriate coordinate manipulation using wxDC
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* LogicalToDeviceXXX and DeviceToLogixalXXX methods. This gets called automatically
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* for a paint event. If you do any drawing outside the paint event, you must call
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* DoPrepareDC manually.
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* </p>
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* @param aDC The device context to prepare.
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*/
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virtual void DoPrepareDC( wxDC& aDC );
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/**
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* Function DeviceToLogical
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* converts \a aRect from device to drawing (logical) coordinates.
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* <p>
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* \a aRect must be in scrolled device units.
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* </p>
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* @param aRect The rectangle to convert.
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* @param aDC The device context used for the conversion.
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* @return A rectangle converted to drawing units.
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*/
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wxRect DeviceToLogical( const wxRect& aRect, wxDC& aDC );
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/* Mouse and keys events */
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/**
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* Function OnMouseWheel
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* handles mouse wheel events.
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* <p>
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* The mouse wheel is used to provide support for zooming and panning. This
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* is accomplished by converting mouse wheel events in pseudo menu command
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* events and sending them to the appropriate parent window event handler.
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*</p>
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*/
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void OnMouseWheel( wxMouseEvent& event );
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void OnMouseEvent( wxMouseEvent& event );
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void OnMouseLeaving( wxMouseEvent& event );
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void OnKeyEvent( wxKeyEvent& event );
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void OnPan( wxCommandEvent& event );
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void EraseScreen( wxDC* DC );
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void OnScrollWin( wxCommandEvent& event );
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void OnScroll( wxScrollWinEvent& event );
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void SetZoom( int mode );
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int GetZoom();
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void SetGrid( const wxRealPoint& size );
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wxRealPoint GetGrid();
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/**
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* Function OnRightClick
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* builds and displays a context menu on a right mouse button click.
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* @return true if the context menu is shown, or false
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*/
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bool OnRightClick( wxMouseEvent& event );
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/**
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* Function IsPointOnDisplay
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* @param aPosition The position to test in logical (drawing) units.
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* @return true if \a aPosition is visible on the screen.
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* false if \a aPosition is not visible on the screen.
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*/
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bool IsPointOnDisplay( const wxPoint& aPosition );
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/**
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* Function SetClipBox
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* sets the clip box in drawing (logical) units from \a aRect in device units.
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* <p>
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* If \a aRect is NULL, then the entire visible area of the screen is used as the clip
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* area. The clip box is used when drawing to determine which objects are not visible
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* and do not need to be drawn. Note that this is not the same as setting the device
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* context clipping with wxDC::SetClippingRegion(). This is the rectangle used by the
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* drawing functions in gr_basic.cpp used to determine if the item to draw is off screen
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* and therefore not drawn.
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* </p>
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* @param aDC The device context use for drawing with the correct scale and
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* offsets already configured. See DoPrepareDC().
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* @param aRect The clip rectangle in device units or NULL for the entire visible area
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* of the screen.
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*/
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void SetClipBox( wxDC& aDC, const wxRect* aRect = NULL );
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void ReDraw( wxDC* aDC, bool aEraseBackground = true );
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/**
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* Function RefreshDrawingRect
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* redraws the contents of \a aRect in drawing units. \a aRect is converted to
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* screen coordinates and wxWindow::RefreshRect() is called to repaint the region.
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* @param aRect The rectangle to repaint.
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* @param aEraseBackground Erases the background if true.
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*/
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void RefreshDrawingRect( const EDA_RECT& aRect, bool aEraseBackground = true );
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/**
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* Function GetScreenCenterLogicalPosition
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* @return The current screen center position in logical (drawing) units.
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*/
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wxPoint GetScreenCenterLogicalPosition();
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/**
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* Function MoveCursorToCrossHair
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* warps the cursor to the current cross hair position.
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*/
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void MoveCursorToCrossHair();
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/**
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* Function MoveCursor
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* moves the mouse pointer to \a aPosition in logical (drawing) units.
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* @param aPosition The position in logical units to move the cursor.
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*/
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void MoveCursor( const wxPoint& aPosition );
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/* Cursor functions */
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/**
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* Function DrawCrossHair
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* draws the user cross hair.
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* <p>
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* The user cross hair is not the mouse cursor although they may be at the same screen
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* position. The mouse cursor is still render by the OS. This is a drawn cross hair
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* that is used to snap to grid when grid snapping is enabled. This is as an indicator
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* to where the next user action will take place.
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* </p>
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* @param aDC - the device context to draw the cursor
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* @param aColor - the color to draw the cursor
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*/
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void DrawCrossHair( wxDC* aDC, int aColor = WHITE );
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// Hide the cross hair.
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void CrossHairOff( wxDC* DC );
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// Show the cross hair.
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void CrossHairOn( wxDC* DC );
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/**
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* Function SetMouseCapture
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* sets the mouse capture and end mouse capture callbacks to \a aMouseCaptureCallback
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* and \a aEndMouseCaptureCallback respectively.
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*/
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void SetMouseCapture( MOUSE_CAPTURE_CALLBACK aMouseCaptureCallback,
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END_MOUSE_CAPTURE_CALLBACK aEndMouseCaptureCallback )
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{
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m_mouseCaptureCallback = aMouseCaptureCallback;
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m_endMouseCaptureCallback = aEndMouseCaptureCallback;
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}
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/**
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* Function EndMouseCapture
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* ends mouse a capture.
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*
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* Check to see if the cursor is being managed for block or editing commands and release it.
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* @param aId The command ID to restore or -1 to keep the current command ID.
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* @param aCursorId The wxWidgets stock cursor ID to set the cursor to or -1 to keep the
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* current cursor.
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* @param aTitle The tool message to display in the status bar or wxEmptyString to clear
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* the message.
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*/
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void EndMouseCapture( int aId = -1, int aCursorId = -1,
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const wxString& aTitle = wxEmptyString );
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inline bool IsMouseCaptured() const { return m_mouseCaptureCallback != NULL; }
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/**
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* Function SetCurrentCursor
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* Set the current cursor shape for drawpanel
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*/
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void SetCurrentCursor( int aCursor )
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{
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m_currentCursor = aCursor;
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SetCursor( m_currentCursor );
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}
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/**
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* Function GetDefaultCursor
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* return the default cursor shape
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*/
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int GetDefaultCursor() const { return m_defaultCursor; }
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/**
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* Function GetCurrentCursor
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* return the current cursor shape, depending on the current selected tool
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*/
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int GetCurrentCursor() const { return m_currentCursor; }
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DECLARE_EVENT_TABLE()
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};
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/**
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* Class EDA_CROSS_HAIR_MANAGER
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* is used to hide the cross hair and restore it when the class goes out of scope.
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*/
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class EDA_CROSS_HAIR_MANAGER
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{
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public:
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EDA_CROSS_HAIR_MANAGER( EDA_DRAW_PANEL* aPanel, wxDC* aDC ) :
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m_panel( aPanel ),
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m_dc( aDC )
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{
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if( aPanel && aDC )
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aPanel->CrossHairOff( aDC );
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}
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~EDA_CROSS_HAIR_MANAGER()
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{
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if( m_panel && m_dc )
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m_panel->CrossHairOn( m_dc );
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}
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private:
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EDA_DRAW_PANEL* m_panel;
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wxDC* m_dc;
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DECLARE_NO_COPY_CLASS( EDA_CROSS_HAIR_MANAGER )
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};
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#endif /* #ifndef PANEL_WXSTRUCT_H */
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