• jean-pierre charras's avatar
    Add hight contrast option in Modedit. In hight contrast mode, solder masks and... · 9cfb97d8
    jean-pierre charras authored
    Add hight contrast option in Modedit. In hight contrast mode, solder masks and solder paste are shown.
    this option was possible only by modifying the way display options are managed.
    before these changes, display options were a global DISPLAY_OPTIONS class instance.
    Now each EDA_DRAW_FRAME(and derivated classes)  includes its own DISPLAY_OPTIONS class instance.
    As a consequence, some duplicate display option variables in these classes have been removed, because there were just duplicate variables of the  DISPLAY_OPTIONS class instance.
    9cfb97d8
class_drawpanel.h 17.6 KB
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/*
 * 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 <stambaughw@verizon.net>
 * 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 <colors.h>
#include <base_struct.h>
#include <gr_basic.h>


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_enableZoomNoCenter;           ///< True to enable zooming around the crosshair instead of the center
    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.

    bool    m_requestAutoPan;               ///< true to request an auto pan.  Valid only when m_enableAutoPan = true.

    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.

    /**
     * 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.
     */
    int     m_minDragEventCount;

    /// 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
    /// >= 0 (or >= n) if a block can start
    int     m_canStartBlock;

public:

    EDA_DRAW_PANEL( EDA_DRAW_FRAME* parent, int id, const wxPoint& pos, const wxSize& size );
    ~EDA_DRAW_PANEL();

    /**
     * Function GetDisplayOptions
     * A way to pass info to draw functions.
     * this is just an accessor to the GetDisplayOptions() parent frame function.
     */
    void* GetDisplayOptions();

    BASE_SCREEN* GetScreen();

    EDA_DRAW_FRAME* GetParent() const;

    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 GetEnableZoomNoCenter() const { return m_enableZoomNoCenter; }

    void SetEnableZoomNoCenter( bool aEnable ) { m_enableZoomNoCenter = 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 ..)
     * @param aGridOrigin = the absolute coordinate of grid origin for snap.
     */
    void DrawGridAxis( wxDC* aDC, GR_DRAWMODE aDrawMode, const wxPoint& aGridOrigin );

    void OnEraseBackground( wxEraseEvent& event ) { }

    /**
     * Function OnActivate
     * handles window activation events.
     * <p>
     * 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.
     *</p>
     */
    void OnActivate( wxActivateEvent& event );

    /**
     * Function DoPrepareDC
     * sets up the device context \a aDC for drawing.
     * <p>
     * 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.
     * </p>
     * @param aDC The device context to prepare.
     */
    virtual void DoPrepareDC( wxDC& aDC );

    /**
     * Function DeviceToLogical
     * converts \a aRect from device to drawing (logical) coordinates.
     * <p>
     * \a aRect must be in scrolled device units.
     * </p>
     * @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.
     * <p>
     * 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.
     *</p>
     */
    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.
     * <p>
     * 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.
     * </p>
     * @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 );

    /// @copydoc wxWindow::Refresh()
    virtual void Refresh( bool eraseBackground = true, const wxRect* rect = NULL );

    /**
     * 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 ToDeviceXY
     * transforms logical to device coordinates
     */
    wxPoint ToDeviceXY( const wxPoint& pos );

    /**
     * Function ToLogicalXY
     * transforms device to logical coordinates
     */
    wxPoint ToLogicalXY( const wxPoint& pos );

    /**
     * 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.
     * <p>
     * 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.
     * </p>
     * @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 */