/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com * Copyright (C) 2011 Wayne Stambaugh * Copyright (C) 1992-2011 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 2 * 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, you may find one here: * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html * or you may search the http://www.gnu.org website for the version 2 license, * or you may write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ /** * @file class_drawpanel.h: * @brief EDA_DRAW_PANEL class definition. */ #ifndef PANEL_WXSTRUCT_H #define PANEL_WXSTRUCT_H #include #include #include class BASE_SCREEN; class PCB_SCREEN; /** * Mouse capture callback function prototype. */ typedef void ( *MOUSE_CAPTURE_CALLBACK )( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition, bool aErase ); /** * End mouse capture callback function prototype. */ typedef void ( *END_MOUSE_CAPTURE_CALLBACK )( EDA_DRAW_PANEL* aPanel, wxDC* aDC ); class EDA_DRAW_PANEL : public wxScrolledWindow { private: int m_currentCursor; ///< Current mouse cursor shape id. int m_defaultCursor; ///< The default mouse cursor shape id. bool m_showCrossHair; ///< Indicate if cross hair is to be shown. int m_cursorLevel; ///< Index for cursor redraw in XOR mode. int m_scrollIncrementX; ///< X axis scroll increment in pixels per unit. int m_scrollIncrementY; ///< Y axis scroll increment in pixels per unit. wxPoint m_CursorStartPos; ///< Used for testing the cursor movement. wxPoint m_PanStartCenter; ///< Initial scroll center position when pan started wxPoint m_PanStartEventPosition; ///< Initial position of mouse event when pan started /// The drawing area used to redraw the screen which is usually the visible area /// of the drawing in internal units. EDA_RECT m_ClipBox; bool m_abortRequest; ///< Flag used to abort long commands. bool m_enableMiddleButtonPan; ///< True to enable middle mouse button panning. bool m_panScrollbarLimits; ///< has meaning only if m_enableMiddleButtonPan = true ///< true to limit panning to scrollbar current limits ///< false to used unlimited pan bool m_enableAutoPan; ///< True to enable automatic panning. /// true to request an auto pan. Valid only when m_enableAutoPan = true. bool m_requestAutoPan; bool m_ignoreMouseEvents; ///< Ignore mouse events when true. /* Used to inhibit a response to a mouse left button release, after a double click * (when releasing the left button at the end of the second click. Used in Eeschema * to inhibit a mouse left release command when switching between hierarchical sheets * on a double click. */ bool m_ignoreNextLeftButtonRelease; ///< Ignore the next mouse left button release when true. bool m_enableBlockCommands; ///< True enables block commands. int m_minDragEventCount; /* Count the drag events. Used to filter mouse moves before starting a * block command. A block command can be started only if * MinDragEventCount > MIN_DRAG_COUNT_FOR_START_BLOCK_COMMAND * in order to avoid spurious block commands. */ /// True when drawing in mirror mode. Used by the draw arc function, because arcs /// are oriented, and in mirror mode, orientations are reversed. bool m_PrintIsMirrored; /// Mouse capture move callback function. MOUSE_CAPTURE_CALLBACK m_mouseCaptureCallback; /// Abort mouse capture callback function. END_MOUSE_CAPTURE_CALLBACK m_endMouseCaptureCallback; // useful to avoid false start block in certain cases // (like switch from a sheet to an other sheet int m_canStartBlock; // >= 0 (or >= n) if a block can start public: EDA_DRAW_PANEL( EDA_DRAW_FRAME* parent, int id, const wxPoint& pos, const wxSize& size ); ~EDA_DRAW_PANEL(); BASE_SCREEN* GetScreen(); virtual EDA_DRAW_FRAME* GetParent(); void OnPaint( wxPaintEvent& event ); EDA_RECT* GetClipBox() { return &m_ClipBox; } void SetClipBox( const EDA_RECT& aRect ) { m_ClipBox = aRect; } bool GetAbortRequest() const { return m_abortRequest; } void SetAbortRequest( bool aAbortRequest ) { m_abortRequest = aAbortRequest; } bool GetEnableMiddleButtonPan() const { return m_enableMiddleButtonPan; } void SetEnableMiddleButtonPan( bool aEnable ) { m_enableMiddleButtonPan = aEnable; } bool GetMiddleButtonPanLimited() const { return m_panScrollbarLimits; } void SetMiddleButtonPanLimited( bool aEnable ) { m_panScrollbarLimits = aEnable; } bool GetEnableAutoPan() const { return m_enableAutoPan; } void SetEnableAutoPan( bool aEnable ) { m_enableAutoPan = aEnable; } void SetAutoPanRequest( bool aEnable ) { m_requestAutoPan = aEnable; } void SetIgnoreMouseEvents( bool aIgnore ) { m_ignoreMouseEvents = aIgnore; } void SetIgnoreLeftButtonReleaseEvent( bool aIgnore ) { m_ignoreNextLeftButtonRelease = aIgnore; } void SetEnableBlockCommands( bool aEnable ) { m_enableBlockCommands = aEnable; } bool GetPrintMirrored() const { return m_PrintIsMirrored; } void SetPrintMirrored( bool aMirror ) { m_PrintIsMirrored = aMirror; } void SetCanStartBlock( int aStartBlock ) { m_canStartBlock = aStartBlock; } /** * Function DrawBackGround * @param DC = current Device Context * Draws (if allowed) : * the grid * X and Y axis * X and Y auxiliary axis */ void DrawBackGround( wxDC* DC ); /** * Function DrawGrid * draws a grid to \a aDC. * @see m_ClipBox to determine the damaged area of the drawing to draw the grid. * @see EDA_DRAW_FRAME::IsGridVisible() to determine if grid is shown. * @see EDA_DRAW_FRAME::GetGridColor() for the color of the grid. * @param aDC The device context to draw the grid. */ void DrawGrid( wxDC* aDC ); /** * Function DrawAuxiliaryAxis * Draw the Auxiliary Axis, used in Pcbnew which as origin coordinates * for gerber and excellon files * @param aDC = current Device Context * @param aDrawMode = draw mode (GR_COPY, GR_OR ..) */ void DrawAuxiliaryAxis( wxDC* aDC, GR_DRAWMODE aDrawMode ); /** * Function DrawGridAxis * Draw on auxiliary axis, used in Pcbnew to show grid origin, when * the grid origin is set by user, and is not (0,0) * @param aDC = current Device Context * @param aDrawMode = draw mode (GR_COPY, GR_OR ..) */ void DrawGridAxis( wxDC* aDC, GR_DRAWMODE aDrawMode ); void OnEraseBackground( wxEraseEvent& event ) { } /** * Function OnActivate * handles window activation events. *

* The member m_canStartBlock is initialize to avoid a block start command on activation * (because a left mouse button can be pressed and no block command wanted. This happens * when enter on a hierarchy sheet on double click. *

*/ void OnActivate( wxActivateEvent& event ); /** * Function DoPrepareDC * sets up the device context \a aDC for drawing. *

* This overrides wxScrolledWindow::DoPrepareDC() for setting up the the device context * used for drawing. The scale factor and drawing logical offset are set and the base * method is called to set the DC device origin (scroll bar position). This connects * everything together to achieve the appropriate coordinate manipulation using wxDC * LogicalToDeviceXXX and DeviceToLogixalXXX methods. This gets called automatically * for a paint event. If you do any drawing outside the paint event, you must call * DoPrepareDC manually. *

* @param aDC The device context to prepare. */ virtual void DoPrepareDC( wxDC& aDC ); /** * Function DeviceToLogical * converts \a aRect from device to drawing (logical) coordinates. *

* \a aRect must be in scrolled device units. *

* @param aRect The rectangle to convert. * @param aDC The device context used for the conversion. * @return A rectangle converted to drawing units. */ wxRect DeviceToLogical( const wxRect& aRect, wxDC& aDC ); /* Mouse and keys events */ /** * Function OnMouseWheel * handles mouse wheel events. *

* The mouse wheel is used to provide support for zooming and panning. This * is accomplished by converting mouse wheel events in pseudo menu command * events and sending them to the appropriate parent window event handler. *

*/ void OnMouseWheel( wxMouseEvent& event ); void OnMouseEvent( wxMouseEvent& event ); void OnMouseLeaving( wxMouseEvent& event ); void OnKeyEvent( wxKeyEvent& event ); void OnCharHook( wxKeyEvent& event ); void OnPan( wxCommandEvent& event ); void EraseScreen( wxDC* DC ); void OnScrollWin( wxCommandEvent& event ); void OnScroll( wxScrollWinEvent& event ); void SetZoom( double mode ); double GetZoom(); void SetGrid( const wxRealPoint& size ); wxRealPoint GetGrid(); /** * Function OnRightClick * builds and displays a context menu on a right mouse button click. * @return true if the context menu is shown, or false */ bool OnRightClick( wxMouseEvent& event ); /** * Function IsPointOnDisplay * @param aPosition The position to test in logical (drawing) units. * @return true if \a aPosition is visible on the screen. * false if \a aPosition is not visible on the screen. */ bool IsPointOnDisplay( const wxPoint& aPosition ); /** * Function SetClipBox * sets the clip box in drawing (logical) units from \a aRect in device units. *

* If \a aRect is NULL, then the entire visible area of the screen is used as the clip * area. The clip box is used when drawing to determine which objects are not visible * and do not need to be drawn. Note that this is not the same as setting the device * context clipping with wxDC::SetClippingRegion(). This is the rectangle used by the * drawing functions in gr_basic.cpp used to determine if the item to draw is off screen * and therefore not drawn. *

* @param aDC The device context use for drawing with the correct scale and * offsets already configured. See DoPrepareDC(). * @param aRect The clip rectangle in device units or NULL for the entire visible area * of the screen. */ void SetClipBox( wxDC& aDC, const wxRect* aRect = NULL ); void ReDraw( wxDC* aDC, bool aEraseBackground = true ); /** * Function RefreshDrawingRect * redraws the contents of \a aRect in drawing units. \a aRect is converted to * screen coordinates and wxWindow::RefreshRect() is called to repaint the region. * @param aRect The rectangle to repaint. * @param aEraseBackground Erases the background if true. */ void RefreshDrawingRect( const EDA_RECT& aRect, bool aEraseBackground = true ); /** * Function GetScreenCenterLogicalPosition * @return The current screen center position in logical (drawing) units. */ wxPoint GetScreenCenterLogicalPosition(); /** * Function MoveCursorToCrossHair * warps the cursor to the current cross hair position. */ void MoveCursorToCrossHair(); /** * Function MoveCursor * moves the mouse pointer to \a aPosition in logical (drawing) units. * @param aPosition The position in logical units to move the cursor. */ void MoveCursor( const wxPoint& aPosition ); /* Cursor functions */ /** * Function DrawCrossHair * draws the user cross hair. *

* The user cross hair is not the mouse cursor although they may be at the same screen * position. The mouse cursor is still render by the OS. This is a drawn cross hair * that is used to snap to grid when grid snapping is enabled. This is as an indicator * to where the next user action will take place. *

* @param aDC - the device context to draw the cursor * @param aColor - the color to draw the cursor */ void DrawCrossHair( wxDC* aDC, EDA_COLOR_T aColor = WHITE ); // Hide the cross hair. void CrossHairOff( wxDC* DC ); // Show the cross hair. void CrossHairOn( wxDC* DC ); /** * Function SetMouseCapture * sets the mouse capture and end mouse capture callbacks to \a aMouseCaptureCallback * and \a aEndMouseCaptureCallback respectively. */ void SetMouseCapture( MOUSE_CAPTURE_CALLBACK aMouseCaptureCallback, END_MOUSE_CAPTURE_CALLBACK aEndMouseCaptureCallback ) { m_mouseCaptureCallback = aMouseCaptureCallback; m_endMouseCaptureCallback = aEndMouseCaptureCallback; } void SetMouseCaptureCallback( MOUSE_CAPTURE_CALLBACK aMouseCaptureCallback ) { m_mouseCaptureCallback = aMouseCaptureCallback; } /** * Function EndMouseCapture * ends mouse a capture. * * Check to see if the cursor is being managed for block or editing commands and release it. * @param aId The command ID to restore or -1 to keep the current command ID. * @param aCursorId The wxWidgets stock cursor ID to set the cursor to or -1 to keep the * current cursor. * @param aTitle The tool message to display in the status bar or wxEmptyString to clear * the message. * @param aCallEndFunc Call the abort mouse capture callback if true. */ void EndMouseCapture( int aId = -1, int aCursorId = -1, const wxString& aTitle = wxEmptyString, bool aCallEndFunc = true ); inline bool IsMouseCaptured() const { return m_mouseCaptureCallback != NULL; } /** * Function CallMouseCapture * calls the mouse capture callback. * * @param aDC A point to a wxDC object to perform any drawing upon. * @param aPosition A referecnce to a wxPoint object containing the current cursor * position. * @param aErase True indicates the item being drawn should be erase before drawing * it a \a aPosition. */ void CallMouseCapture( wxDC* aDC, const wxPoint& aPosition, bool aErase ); /** * Function CallEndMouseCapture * calls the end mouse capture callback. * * @param aDC A point to a wxDC object to perform any drawing upon. */ void CallEndMouseCapture( wxDC* aDC ); /** * Function SetCurrentCursor * Set the current cursor shape for drawpanel */ void SetCurrentCursor( int aCursor ) { m_currentCursor = aCursor; SetCursor( (wxStockCursor) m_currentCursor ); } /** * Function GetDefaultCursor * return the default cursor shape */ int GetDefaultCursor() const { return m_defaultCursor; } /** * Function GetCurrentCursor * return the current cursor shape, depending on the current selected tool */ int GetCurrentCursor() const { return m_currentCursor; } DECLARE_EVENT_TABLE() }; /** * Class EDA_CROSS_HAIR_MANAGER * is used to hide the cross hair and restore it when the class goes out of scope. */ class EDA_CROSS_HAIR_MANAGER { public: EDA_CROSS_HAIR_MANAGER( EDA_DRAW_PANEL* aPanel, wxDC* aDC ) : m_panel( aPanel ), m_dc( aDC ) { if( aPanel && aDC ) aPanel->CrossHairOff( aDC ); } ~EDA_CROSS_HAIR_MANAGER() { if( m_panel && m_dc ) m_panel->CrossHairOn( m_dc ); } private: EDA_DRAW_PANEL* m_panel; wxDC* m_dc; DECLARE_NO_COPY_CLASS( EDA_CROSS_HAIR_MANAGER ) }; #endif /* #ifndef PANEL_WXSTRUCT_H */