/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2009 Jean-Pierre Charras, jean-pierre.charras@gipsa-lab.inpg.fr * Copyright (C) 2007 Wayne Stambaugh * Copyright (C) 1992-2018 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 draw_panel.cpp */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static const int CURSOR_SIZE = 12; ///< Cursor size in pixels #define CLIP_BOX_PADDING 2 // Definitions for enabling and disabling debugging features in drawpanel.cpp. // Please don't forget to turn these off before making any commits to Launchpad. #define DEBUG_SHOW_CLIP_RECT 0 // Set to 1 to draw clipping rectangle. // Events used by EDA_DRAW_PANEL BEGIN_EVENT_TABLE( EDA_DRAW_PANEL, wxScrolledWindow ) EVT_LEAVE_WINDOW( EDA_DRAW_PANEL::OnMouseLeaving ) EVT_ENTER_WINDOW( EDA_DRAW_PANEL::OnMouseEntering ) EVT_MOUSEWHEEL( EDA_DRAW_PANEL::OnMouseWheel ) #if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT ) EVT_MAGNIFY( EDA_DRAW_PANEL::OnMagnify ) #endif EVT_MOUSE_EVENTS( EDA_DRAW_PANEL::OnMouseEvent ) EVT_CHAR( EDA_DRAW_PANEL::OnKeyEvent ) EVT_CHAR_HOOK( EDA_DRAW_PANEL::OnKeyEvent ) EVT_PAINT( EDA_DRAW_PANEL::OnPaint ) EVT_ERASE_BACKGROUND( EDA_DRAW_PANEL::OnEraseBackground ) EVT_SCROLLWIN( EDA_DRAW_PANEL::OnScroll ) EVT_ACTIVATE( EDA_DRAW_PANEL::OnActivate ) EVT_TIMER( ID_MOUSE_DOUBLECLICK, EDA_DRAW_PANEL::OnTimer ) EVT_MENU_RANGE( ID_PAN_UP, ID_PAN_RIGHT, EDA_DRAW_PANEL::OnPan ) END_EVENT_TABLE() /***********************************************************************/ /* EDA_DRAW_PANEL base functions (EDA_DRAW_PANEL is the main panel)*/ /***********************************************************************/ #ifdef __WXMAC__ const int drawPanelStyle = wxBORDER | wxHSCROLL | wxVSCROLL | wxALWAYS_SHOW_SB; #else const int drawPanelStyle = wxBORDER | wxHSCROLL | wxVSCROLL; #endif EDA_DRAW_PANEL::EDA_DRAW_PANEL( EDA_DRAW_FRAME* parent, int id, const wxPoint& pos, const wxSize& size ) : wxScrolledWindow( parent, id, pos, size, drawPanelStyle ) { wxASSERT( parent ); ShowScrollbars( wxSHOW_SB_ALWAYS, wxSHOW_SB_ALWAYS ); DisableKeyboardScrolling(); m_scrollIncrementX = std::min( size.x / 8, 10 ); m_scrollIncrementY = std::min( size.y / 8, 10 ); SetLayoutDirection( wxLayout_LeftToRight ); SetBackgroundColour( parent->GetDrawBgColor().ToColour() ); #if KICAD_USE_BUFFERED_DC || KICAD_USE_BUFFERED_PAINTDC SetBackgroundStyle( wxBG_STYLE_CUSTOM ); #endif m_ClipBox.SetSize( size ); m_ClipBox.SetX( 0 ); m_ClipBox.SetY( 0 ); m_canStartBlock = -1; // Command block can start if >= 0 m_abortRequest = false; m_enableMousewheelPan = false; m_enableZoomNoCenter = false; m_enableAutoPan = true; m_ignoreMouseEvents = false; // Be sure a mouse release button event will be ignored when creating the canvas // if the mouse click was not made inside the canvas (can happen sometimes, when // launching a editor from a double click made in another frame) m_ignoreNextLeftButtonRelease = true; m_mouseCaptureCallback = NULL; m_endMouseCaptureCallback = NULL; Pgm().CommonSettings()->Read( ENBL_MOUSEWHEEL_PAN_KEY, &m_enableMousewheelPan, false ); Pgm().CommonSettings()->Read( ENBL_ZOOM_NO_CENTER_KEY, &m_enableZoomNoCenter, false ); Pgm().CommonSettings()->Read( ENBL_AUTO_PAN_KEY, &m_enableAutoPan, true ); m_requestAutoPan = false; m_enableBlockCommands = false; m_minDragEventCount = 0; #ifdef __WXMAC__ m_defaultCursor = m_currentCursor = wxCURSOR_CROSS; m_showCrossHair = false; #else m_defaultCursor = m_currentCursor = wxCURSOR_ARROW; m_showCrossHair = true; #endif m_cursorLevel = 0; m_PrintIsMirrored = false; m_ClickTimer = (wxTimer*) NULL; m_doubleClickInterval = 250; } EDA_DRAW_PANEL::~EDA_DRAW_PANEL() { wxConfigBase* cfg = Kiface().KifaceSettings(); if( cfg ) { cfg->Write( ENBL_MOUSEWHEEL_PAN_KEY, m_enableMousewheelPan ); cfg->Write( ENBL_ZOOM_NO_CENTER_KEY, m_enableZoomNoCenter ); cfg->Write( ENBL_AUTO_PAN_KEY, m_enableAutoPan ); } wxDELETE( m_ClickTimer ); } EDA_DRAW_FRAME* EDA_DRAW_PANEL::GetParent() const { wxWindow* mom = wxScrolledWindow::GetParent(); return (EDA_DRAW_FRAME*) mom; } void* EDA_DRAW_PANEL::GetDisplayOptions() { return GetParent()->GetDisplayOptions(); } BASE_SCREEN* EDA_DRAW_PANEL::GetScreen() { EDA_DRAW_FRAME* parentFrame = GetParent(); return parentFrame->GetScreen(); } wxPoint EDA_DRAW_PANEL::ToDeviceXY( const wxPoint& pos ) { wxPoint ret; INSTALL_UNBUFFERED_DC( dc, this ); ret.x = dc.LogicalToDeviceX( pos.x ); ret.y = dc.LogicalToDeviceY( pos.y ); return ret; } wxPoint EDA_DRAW_PANEL::ToLogicalXY( const wxPoint& pos ) { wxPoint ret; INSTALL_UNBUFFERED_DC( dc, this ); ret.x = dc.DeviceToLogicalX( pos.x ); ret.y = dc.DeviceToLogicalY( pos.y ); return ret; } void EDA_DRAW_PANEL::DrawCrossHair( wxDC* aDC, COLOR4D aColor ) { if( m_cursorLevel != 0 || aDC == NULL || !m_showCrossHair ) return; wxPoint cursor = GetParent()->GetCrossHairPosition(); #ifdef USE_WX_GRAPHICS_CONTEXT // Normally cursor color is set to white, so when it is xored with white // background, it is painted black effectively. wxGraphicsContext does not have // xor operation, so we need to invert the color manually. aColor.Invert(); #else GRSetDrawMode( aDC, GR_XOR ); #endif if( GetParent()->GetGalDisplayOptions().m_fullscreenCursor ) { wxSize clientSize = GetClientSize(); // Y axis wxPoint lineStart( cursor.x, aDC->DeviceToLogicalY( 0 ) ); wxPoint lineEnd( cursor.x, aDC->DeviceToLogicalY( clientSize.y ) ); GRLine( &m_ClipBox, aDC, lineStart, lineEnd, 0, aColor ); // X axis lineStart = wxPoint( aDC->DeviceToLogicalX( 0 ), cursor.y ); lineEnd = wxPoint( aDC->DeviceToLogicalX( clientSize.x ), cursor.y ); GRLine( &m_ClipBox, aDC, lineStart, lineEnd, 0, aColor ); } else { int len = aDC->DeviceToLogicalXRel( CURSOR_SIZE ); GRLine( &m_ClipBox, aDC, cursor.x - len, cursor.y, cursor.x + len, cursor.y, 0, aColor ); GRLine( &m_ClipBox, aDC, cursor.x, cursor.y - len, cursor.x, cursor.y + len, 0, aColor ); } } void EDA_DRAW_PANEL::CrossHairOff( wxDC* DC ) { DrawCrossHair( DC ); --m_cursorLevel; } void EDA_DRAW_PANEL::CrossHairOn( wxDC* DC ) { ++m_cursorLevel; DrawCrossHair( DC ); if( m_cursorLevel > 0 ) // Shouldn't happen, but just in case .. m_cursorLevel = 0; } double EDA_DRAW_PANEL::GetZoom() { return GetScreen()->GetZoom(); } void EDA_DRAW_PANEL::SetZoom( double zoom ) { GetScreen()->SetZoom( zoom ); } wxRealPoint EDA_DRAW_PANEL::GetGrid() { return GetScreen()->GetGridSize(); } bool EDA_DRAW_PANEL::IsPointOnDisplay( const wxPoint& aPosition ) { wxPoint pos; EDA_RECT display_rect; INSTALL_UNBUFFERED_DC( dc, this ); // Refresh the clip box to the entire screen size. SetClipBox( dc ); display_rect = m_ClipBox; // Slightly decreased the size of the useful screen area to avoid drawing limits. #define PIXEL_MARGIN 8 display_rect.Inflate( -PIXEL_MARGIN ); return display_rect.Contains( aPosition ); } void EDA_DRAW_PANEL::RefreshDrawingRect( const EDA_RECT& aRect, bool aEraseBackground ) { INSTALL_UNBUFFERED_DC( dc, this ); wxRect rect = aRect; rect.x = dc.LogicalToDeviceX( rect.x ); rect.y = dc.LogicalToDeviceY( rect.y ); rect.width = dc.LogicalToDeviceXRel( rect.width ); rect.height = dc.LogicalToDeviceYRel( rect.height ); wxLogTrace( kicadTraceCoords, wxT( "Refresh area: drawing (%d, %d, %d, %d), device (%d, %d, %d, %d)" ), aRect.GetX(), aRect.GetY(), aRect.GetWidth(), aRect.GetHeight(), rect.x, rect.y, rect.width, rect.height ); RefreshRect( rect, aEraseBackground ); } void EDA_DRAW_PANEL::Refresh( bool eraseBackground, const wxRect* rect ) { if( GetParent()->IsGalCanvasActive() ) { GetParent()->GetGalCanvas()->Refresh(); } else { wxScrolledWindow::Refresh( eraseBackground, rect ); } } wxPoint EDA_DRAW_PANEL::GetScreenCenterLogicalPosition() { wxSize size = GetClientSize() / 2; INSTALL_UNBUFFERED_DC( dc, this ); return wxPoint( dc.DeviceToLogicalX( size.x ), dc.DeviceToLogicalY( size.y ) ); } void EDA_DRAW_PANEL::MoveCursorToCrossHair() { MoveCursor( GetParent()->GetCrossHairPosition() ); } void EDA_DRAW_PANEL::MoveCursor( const wxPoint& aPosition ) { if( GetParent()->IsGalCanvasActive() ) return; int x, y, xPpu, yPpu; wxPoint screenPos, drawingPos; wxRect clientRect( wxPoint( 0, 0 ), GetClientSize() ); INSTALL_UNBUFFERED_DC( dc, this ); screenPos.x = dc.LogicalToDeviceX( aPosition.x ); screenPos.y = dc.LogicalToDeviceY( aPosition.y ); // Scroll if the requested mouse position cursor is outside the drawing area. if( !clientRect.Contains( screenPos ) ) { GetViewStart( &x, &y ); GetScrollPixelsPerUnit( &xPpu, &yPpu ); CalcUnscrolledPosition( screenPos.x, screenPos.y, &drawingPos.x, &drawingPos.y ); wxLogTrace( kicadTraceCoords, wxT( "MoveCursor() initial screen position(%d, %d) " ) \ wxT( "rectangle(%d, %d, %d, %d) view(%d, %d)" ), screenPos.x, screenPos.y, clientRect.x, clientRect.y, clientRect.width, clientRect.height, x, y ); if( screenPos.y < clientRect.GetTop() ) y -= m_scrollIncrementY * yPpu; else if( screenPos.y > clientRect.GetBottom() ) y += m_scrollIncrementY * yPpu; else if( clientRect.GetRight() < screenPos.x ) x += m_scrollIncrementX * xPpu; else x -= m_scrollIncrementX * xPpu; Scroll( x, y ); CalcScrolledPosition( drawingPos.x, drawingPos.y, &screenPos.x, &screenPos.y ); wxLogTrace( kicadTraceCoords, wxT( "MoveCursor() scrolled screen position(%d, %d) view(%d, %d)" ), screenPos.x, screenPos.y, x, y ); } WarpPointer( screenPos.x, screenPos.y ); } void EDA_DRAW_PANEL::OnActivate( wxActivateEvent& event ) { m_canStartBlock = -1; // Block Command can't start event.Skip(); } void EDA_DRAW_PANEL::OnTimer( wxTimerEvent& event ) { INSTALL_UNBUFFERED_DC( DC, this ); DC.SetBackground( *wxBLACK_BRUSH ); GetParent()->OnLeftClick( &DC, m_CursorClickPos ); } void EDA_DRAW_PANEL::OnScroll( wxScrollWinEvent& event ) { int id = event.GetEventType(); int x, y; int ppux, ppuy; int csizeX, csizeY; int unitsX, unitsY; GetViewStart( &x, &y ); GetScrollPixelsPerUnit( &ppux, &ppuy ); GetClientSize( &csizeX, &csizeY ); GetVirtualSize( &unitsX, &unitsY ); int tmpX = x; int tmpY = y; csizeX /= ppux; csizeY /= ppuy; unitsX /= ppux; unitsY /= ppuy; int dir = event.GetOrientation(); // wxHORIZONTAL or wxVERTICAL // On windows and on wxWidgets >= 2.9.5 and < 3.1, // there is a bug in mousewheel event which always generates 2 scroll events // (should be the case only for the default mousewheel event) // with id = wxEVT_SCROLLWIN_LINEUP or wxEVT_SCROLLWIN_LINEDOWN // so we skip these events. // Note they are here just in case, because they are not actually used // in Kicad #if wxCHECK_VERSION( 3, 1, 0 ) || !wxCHECK_VERSION( 2, 9, 5 ) || ( !defined (__WINDOWS__) && !defined (__WXMAC__) ) int maxX = unitsX - csizeX; int maxY = unitsY - csizeY; if( id == wxEVT_SCROLLWIN_LINEUP ) { if( dir == wxHORIZONTAL ) { x -= m_scrollIncrementX; if( x < 0 ) x = 0; } else { y -= m_scrollIncrementY; if( y < 0 ) y = 0; } } else if( id == wxEVT_SCROLLWIN_LINEDOWN ) { if( dir == wxHORIZONTAL ) { x += m_scrollIncrementX; if( x > maxX ) x = maxX; } else { y += m_scrollIncrementY; if( y > maxY ) y = maxY; } } else #endif if( id == wxEVT_SCROLLWIN_THUMBTRACK ) { if( dir == wxHORIZONTAL ) x = event.GetPosition(); else y = event.GetPosition(); } else { event.Skip(); return; } wxLogTrace( kicadTraceCoords, wxT( "Setting scroll bars ppuX=%d, ppuY=%d, unitsX=%d, unitsY=%d, posX=%d, posY=%d" ), ppux, ppuy, unitsX, unitsY, x, y ); double scale = GetParent()->GetScreen()->GetScalingFactor(); wxPoint center = GetParent()->GetScrollCenterPosition(); center.x += KiROUND( (double) ( x - tmpX ) / scale ); center.y += KiROUND( (double) ( y - tmpY ) / scale ); GetParent()->SetScrollCenterPosition( center ); Scroll( x, y ); event.Skip(); } void EDA_DRAW_PANEL::SetClipBox( wxDC& aDC, const wxRect* aRect ) { wxRect clipBox; // Use the entire visible device area if no clip area was defined. if( aRect == NULL ) { BASE_SCREEN* Screen = GetScreen(); if( !Screen ) return; Screen->m_StartVisu = CalcUnscrolledPosition( wxPoint( 0, 0 ) ); clipBox.SetSize( GetClientSize() ); int scrollX, scrollY; double scalar = Screen->GetScalingFactor(); scrollX = KiROUND( Screen->GetGridSize().x * scalar ); scrollY = KiROUND( Screen->GetGridSize().y * scalar ); m_scrollIncrementX = std::max( GetClientSize().x / 8, scrollX ); m_scrollIncrementY = std::max( GetClientSize().y / 8, scrollY ); Screen->m_ScrollbarPos.x = GetScrollPos( wxHORIZONTAL ); Screen->m_ScrollbarPos.y = GetScrollPos( wxVERTICAL ); } else { clipBox = *aRect; } // Pad clip box in device units. clipBox.Inflate( CLIP_BOX_PADDING ); // Convert from device units to drawing units. m_ClipBox.SetOrigin( wxPoint( aDC.DeviceToLogicalX( clipBox.x ), aDC.DeviceToLogicalY( clipBox.y ) ) ); m_ClipBox.SetSize( wxSize( aDC.DeviceToLogicalXRel( clipBox.width ), aDC.DeviceToLogicalYRel( clipBox.height ) ) ); wxLogTrace( kicadTraceCoords, wxT( "Device clip box=(%d, %d, %d, %d), Logical clip box=(%d, %d, %d, %d)" ), clipBox.x, clipBox.y, clipBox.width, clipBox.height, m_ClipBox.GetX(), m_ClipBox.GetY(), m_ClipBox.GetWidth(), m_ClipBox.GetHeight() ); } void EDA_DRAW_PANEL::EraseScreen( wxDC* DC ) { GRSetDrawMode( DC, GR_COPY ); COLOR4D bgColor = GetParent()->GetDrawBgColor(); GRSFilledRect( NULL, DC, m_ClipBox.GetX(), m_ClipBox.GetY(), m_ClipBox.GetRight(), m_ClipBox.GetBottom(), 0, bgColor, bgColor ); // Set to one (1) to draw bounding box validate bounding box calculation. #if DEBUG_SHOW_CLIP_RECT EDA_RECT bBox = m_ClipBox; GRRect( NULL, DC, bBox.GetOrigin().x, bBox.GetOrigin().y, bBox.GetEnd().x, bBox.GetEnd().y, 0, LIGHTMAGENTA ); #endif } void EDA_DRAW_PANEL::DoPrepareDC( wxDC& dc ) { wxScrolledWindow::DoPrepareDC( dc ); if( GetScreen() != NULL ) { double scale = GetScreen()->GetScalingFactor(); dc.SetUserScale( scale, scale ); wxPoint pt = GetScreen()->m_DrawOrg; dc.SetLogicalOrigin( pt.x, pt.y ); } SetClipBox( dc ); // Reset the clip box to the entire screen. GRResetPenAndBrush( &dc ); dc.SetBackgroundMode( wxTRANSPARENT ); } void EDA_DRAW_PANEL::OnPaint( wxPaintEvent& event ) { if( GetScreen() == NULL ) { event.Skip(); return; } INSTALL_PAINTDC( paintDC, this ); wxRect region = GetUpdateRegion().GetBox(); SetClipBox( paintDC, ®ion ); ReDraw( &paintDC, true ); } void EDA_DRAW_PANEL::ReDraw( wxDC* DC, bool erasebg ) { BASE_SCREEN* Screen = GetScreen(); if( Screen == NULL ) return; COLOR4D bgColor = GetParent()->GetDrawBgColor(); // TODO(JE): Is this correct? if( bgColor.GetBrightness() > 0.5 ) { g_XorMode = GR_NXOR; g_GhostColor = BLACK; } else { g_XorMode = GR_XOR; g_GhostColor = WHITE; } GRResetPenAndBrush( DC ); DC->SetBackground( wxBrush( bgColor.ToColour() ) ); DC->SetBackgroundMode( wxSOLID ); if( erasebg ) EraseScreen( DC ); GetParent()->RedrawActiveWindow( DC, erasebg ); // Verfies that the clipping is working correctly. If these two sets of numbers are // not the same or really close. The clipping algorithms are broken. wxLogTrace( kicadTraceCoords, wxT( "Clip box: (%d, %d, %d, %d), Draw extents (%d, %d, %d, %d)" ), m_ClipBox.GetX(), m_ClipBox.GetY(), m_ClipBox.GetRight(), m_ClipBox.GetBottom(), DC->MinX(), DC->MinY(), DC->MaxX(), DC->MaxY() ); } void EDA_DRAW_PANEL::SetEnableMousewheelPan( bool aEnable ) { m_enableMousewheelPan = aEnable; if( GetParent()->IsGalCanvasActive() ) GetParent()->GetGalCanvas()->GetViewControls()->EnableMousewheelPan( aEnable ); } void EDA_DRAW_PANEL::SetEnableAutoPan( bool aEnable ) { m_enableAutoPan = aEnable; if( GetParent()->IsGalCanvasActive() ) GetParent()->GetGalCanvas()->GetViewControls()->EnableAutoPan( aEnable ); } void EDA_DRAW_PANEL::SetEnableZoomNoCenter( bool aEnable ) { m_enableZoomNoCenter = aEnable; if( GetParent()->IsGalCanvasActive() ) GetParent()->GetGalCanvas()->GetViewControls()->EnableCursorWarping( !aEnable ); } void EDA_DRAW_PANEL::DrawBackGround( wxDC* DC ) { GRSetDrawMode( DC, GR_COPY ); if( GetParent()->IsGridVisible() ) DrawGrid( DC ); // Draw axis if( GetParent()->m_showAxis ) { COLOR4D axis_color = COLOR4D( BLUE ); wxSize pageSize = GetParent()->GetPageSizeIU(); // Draw the Y axis GRLine( &m_ClipBox, DC, 0, -pageSize.y, 0, pageSize.y, 0, axis_color ); // Draw the X axis GRLine( &m_ClipBox, DC, -pageSize.x, 0, pageSize.x, 0, 0, axis_color ); } if( GetParent()->m_showOriginAxis ) DrawAuxiliaryAxis( DC, GR_COPY ); if( GetParent()->m_showGridAxis ) DrawGridAxis( DC, GR_COPY, GetParent()->GetGridOrigin() ); } void EDA_DRAW_PANEL::DrawGrid( wxDC* aDC ) { #define MIN_GRID_SIZE 10 // min grid size in pixels to allow drawing BASE_SCREEN* screen = GetScreen(); wxRealPoint gridSize; wxSize screenSize; wxPoint org; wxRealPoint screenGridSize; /* The grid must be visible. this is possible only is grid value * and zoom value are sufficient */ gridSize = screen->GetGridSize(); screen->m_StartVisu = CalcUnscrolledPosition( wxPoint( 0, 0 ) ); screenSize = GetClientSize(); screenGridSize.x = aDC->LogicalToDeviceXRel( KiROUND( gridSize.x ) ); screenGridSize.y = aDC->LogicalToDeviceYRel( KiROUND( gridSize.y ) ); org = m_ClipBox.GetPosition(); if( screenGridSize.x < MIN_GRID_SIZE || screenGridSize.y < MIN_GRID_SIZE ) { screenGridSize.x *= 2.0; screenGridSize.y *= 2.0; gridSize.x *= 2.0; gridSize.y *= 2.0; } if( screenGridSize.x < MIN_GRID_SIZE || screenGridSize.y < MIN_GRID_SIZE ) return; org = GetParent()->GetNearestGridPosition( org, &gridSize ); // Setting the nearest grid position can select grid points outside the clip box. // Incrementing the start point by one grid step should prevent drawing grid points // outside the clip box. if( org.x < m_ClipBox.GetX() ) org.x += KiROUND( gridSize.x ); if( org.y < m_ClipBox.GetY() ) org.y += KiROUND( gridSize.y ); // Use a pixel based draw to display grid. There are a lot of calls, so the cost is // high and grid is slowly drawn on some platforms. Another way using blit transfert was used, // a long time ago, but it did not give very good results. // The better way is highly dependent on the platform and the graphic card. int xpos; double right = ( double ) m_ClipBox.GetRight(); double bottom = ( double ) m_ClipBox.GetBottom(); #if defined( USE_WX_GRAPHICS_CONTEXT ) wxGCDC *gcdc = wxDynamicCast( aDC, wxGCDC ); if( gcdc ) { // Much faster grid drawing on systems using wxGraphicsContext wxGraphicsContext *gc = gcdc->GetGraphicsContext(); // Grid point size const int gsz = 1; const double w = aDC->DeviceToLogicalXRel( gsz ); const double h = aDC->DeviceToLogicalYRel( gsz ); // Use our own pen wxPen pen( GetParent()->GetGridColor().ToColour(), h ); pen.SetCap( wxCAP_BUTT ); gc->SetPen( pen ); // draw grid wxGraphicsPath path = gc->CreatePath(); for( double x = (double) org.x - w/2.0; x <= right - w/2.0; x += gridSize.x ) { for( double y = (double) org.y; y <= bottom; y += gridSize.y ) { path.MoveToPoint( x, y ); path.AddLineToPoint( x+w, y ); } } gc->StrokePath( path ); } else #endif { GRSetColorPen( aDC, GetParent()->GetGridColor() ); for( double x = (double) org.x; x <= right; x += gridSize.x ) { xpos = KiROUND( x ); for( double y = (double) org.y; y <= bottom; y += gridSize.y ) { aDC->DrawPoint( xpos, KiROUND( y ) ); } } } } // Set to 1 to draw auxirilary axis as lines, 0 to draw as target (circle with cross) #define DRAW_AXIS_AS_LINES 0 // Size in pixels of the target shape #define AXIS_SIZE_IN_PIXELS 15 void EDA_DRAW_PANEL::DrawAuxiliaryAxis( wxDC* aDC, GR_DRAWMODE aDrawMode ) { wxPoint origin = GetParent()->GetAuxOrigin(); if( origin == wxPoint( 0, 0 ) ) return; COLOR4D color = COLOR4D( RED ); GRSetDrawMode( aDC, aDrawMode ); #if DRAW_AXIS_AS_LINES wxSize pageSize = GetParent()->GetPageSizeIU(); // Draw the Y axis GRLine( &m_ClipBox, aDC, origin.x, -pageSize.y, origin.x, pageSize.y, 0, color ); // Draw the X axis GRLine( &m_ClipBox, aDC, -pageSize.x, origin.y, pageSize.x, origin.y, 0, color ); #else int radius = aDC->DeviceToLogicalXRel( AXIS_SIZE_IN_PIXELS ); int linewidth = aDC->DeviceToLogicalXRel( 1 ); GRSetColorPen( aDC, color, linewidth ); GRLine( &m_ClipBox, aDC, origin.x, origin.y-radius, origin.x, origin.y+radius, 0, color ); // Draw the + shape GRLine( &m_ClipBox, aDC, origin.x-radius, origin.y, origin.x+radius, origin.y, 0, color ); GRCircle( &m_ClipBox, aDC, origin, radius, linewidth, color ); #endif } void EDA_DRAW_PANEL::DrawGridAxis( wxDC* aDC, GR_DRAWMODE aDrawMode, const wxPoint& aGridOrigin ) { if( !GetParent()->m_showGridAxis || ( !aGridOrigin.x && !aGridOrigin.y ) ) return; COLOR4D color = GetParent()->GetGridColor(); GRSetDrawMode( aDC, aDrawMode ); #if DRAW_AXIS_AS_LINES wxSize pageSize = GetParent()->GetPageSizeIU(); // Draw the Y axis GRLine( &m_ClipBox, aDC, aGridOrigin.x, -pageSize.y, aGridOrigin.x, pageSize.y, 0, color ); // Draw the X axis GRLine( &m_ClipBox, aDC, -pageSize.x, aGridOrigin.y, pageSize.x, aGridOrigin.y, 0, color ); #else int radius = aDC->DeviceToLogicalXRel( AXIS_SIZE_IN_PIXELS ); int linewidth = aDC->DeviceToLogicalXRel( 1 ); GRSetColorPen( aDC, GetParent()->GetGridColor(), linewidth ); GRLine( &m_ClipBox, aDC, aGridOrigin.x-radius, aGridOrigin.y-radius, aGridOrigin.x+radius, aGridOrigin.y+radius, 0, color ); // Draw the X shape GRLine( &m_ClipBox, aDC, aGridOrigin.x+radius, aGridOrigin.y-radius, aGridOrigin.x-radius, aGridOrigin.y+radius, 0, color ); GRCircle( &m_ClipBox, aDC, aGridOrigin, radius, linewidth, color ); #endif } bool EDA_DRAW_PANEL::OnRightClick( wxMouseEvent& event ) { wxPoint pos; wxMenu MasterMenu; INSTALL_UNBUFFERED_DC( dc, this ); pos = event.GetLogicalPosition( dc ); if( !GetParent()->OnRightClick( pos, &MasterMenu ) ) return false; GetParent()->AddMenuZoomAndGrid( &MasterMenu ); pos = event.GetPosition(); m_ignoreMouseEvents = true; PopupMenu( &MasterMenu, pos ); // The ZoomAndGrid menu is only invoked over empty space so there's no point in warping // the cursor back to the crosshair, and it's very annoying if one clicked out of the menu. m_ignoreMouseEvents = false; return true; } void EDA_DRAW_PANEL::OnMouseEntering( wxMouseEvent& aEvent ) { // This is an ugly hack that fixes some cross hair display bugs when the mouse leaves the // canvas area during middle button mouse panning. if( m_cursorLevel != 0 ) m_cursorLevel = 0; aEvent.Skip(); } void EDA_DRAW_PANEL::OnMouseLeaving( wxMouseEvent& event ) { if( m_mouseCaptureCallback == NULL ) // No command in progress. m_requestAutoPan = false; if( !m_enableAutoPan || !m_requestAutoPan || m_ignoreMouseEvents ) return; // Auto pan when mouse has left the client window // Ensure the cross_hair position is updated, // because it will be used to center the screen. // We use a position inside the client window wxRect area( wxPoint( 0, 0 ), GetClientSize() ); wxPoint cross_hair_pos = event.GetPosition(); // Certain window managers (e.g. awesome wm) incorrectly trigger "on leave" event, // therefore test if the cursor has really left the panel area if( !area.Contains( cross_hair_pos ) ) { INSTALL_UNBUFFERED_DC( dc, this ); cross_hair_pos.x = dc.DeviceToLogicalX( cross_hair_pos.x ); cross_hair_pos.y = dc.DeviceToLogicalY( cross_hair_pos.y ); GetParent()->SetCrossHairPosition( cross_hair_pos ); wxCommandEvent cmd( wxEVT_COMMAND_MENU_SELECTED, ID_POPUP_ZOOM_CENTER ); cmd.SetEventObject( this ); GetEventHandler()->ProcessEvent( cmd ); } event.Skip(); } void EDA_DRAW_PANEL::OnMouseWheel( wxMouseEvent& event ) { if( m_ignoreMouseEvents ) return; wxRect rect = wxRect( wxPoint( 0, 0 ), GetClientSize() ); // Ignore scroll events if the cursor is outside the drawing area. if( event.GetWheelRotation() == 0 || !GetParent()->IsEnabled() || !rect.Contains( event.GetPosition() ) ) { wxLogTrace( kicadTraceCoords, wxT( "OnMouseWheel() position(%d, %d) rectangle(%d, %d, %d, %d)" ), event.GetPosition().x, event.GetPosition().y, rect.x, rect.y, rect.width, rect.height ); event.Skip(); return; } INSTALL_UNBUFFERED_DC( dc, this ); GetParent()->SetCrossHairPosition( event.GetLogicalPosition( dc ) ); wxCommandEvent cmd( wxEVT_COMMAND_MENU_SELECTED ); cmd.SetEventObject( this ); bool offCenterReq = event.ControlDown() && event.ShiftDown(); offCenterReq = offCenterReq || m_enableZoomNoCenter; int axis = event.GetWheelAxis(); int wheelRotation = event.GetWheelRotation(); if( m_enableMousewheelPan ) { // MousewheelPAN + Ctrl = zooming if( event.ControlDown() && !event.ShiftDown() ) { if( wheelRotation > 0 ) cmd.SetId( ID_POPUP_ZOOM_IN ); else if( wheelRotation < 0) cmd.SetId( ID_POPUP_ZOOM_OUT ); } // MousewheelPAN + Shift = horizontal scrolling // Without modifiers MousewheelPAN - just pan else { if( event.ShiftDown() && !event.ControlDown() ) axis = wxMOUSE_WHEEL_HORIZONTAL; wxPoint newStart = GetViewStart(); wxPoint center = GetParent()->GetScrollCenterPosition(); double scale = GetParent()->GetScreen()->GetScalingFactor(); if( axis == wxMOUSE_WHEEL_HORIZONTAL ) { newStart.x += wheelRotation; center.x += KiROUND( (double) wheelRotation / scale ); } else { newStart.y -= wheelRotation; center.y -= KiROUND( (double) wheelRotation / scale ); } Scroll( newStart ); GetParent()->SetScrollCenterPosition( center ); GetParent()->SetCrossHairPosition( center, true ); GetParent()->RedrawScreen( center, false ); } } else if( wheelRotation > 0 ) { if( event.ShiftDown() && !event.ControlDown() ) cmd.SetId( ID_PAN_UP ); else if( event.ControlDown() && !event.ShiftDown() ) cmd.SetId( ID_PAN_LEFT ); else if( offCenterReq ) cmd.SetId( ID_OFFCENTER_ZOOM_IN ); else cmd.SetId( ID_POPUP_ZOOM_IN ); } else if( wheelRotation < 0 ) { if( event.ShiftDown() && !event.ControlDown() ) cmd.SetId( ID_PAN_DOWN ); else if( event.ControlDown() && !event.ShiftDown() ) cmd.SetId( ID_PAN_RIGHT ); else if( offCenterReq ) cmd.SetId( ID_OFFCENTER_ZOOM_OUT ); else cmd.SetId( ID_POPUP_ZOOM_OUT ); } if( cmd.GetId() ) GetEventHandler()->ProcessEvent( cmd ); event.Skip(); } #if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT ) void EDA_DRAW_PANEL::OnMagnify( wxMouseEvent& event ) { // Scale the panel around our cursor position. bool warpCursor = false; wxPoint cursorPosition = GetParent()->GetCursorPosition( false ); wxPoint centerPosition = GetParent()->GetScrollCenterPosition(); wxPoint vector = centerPosition - cursorPosition; double magnification = ( event.GetMagnification() + 1.0f ); double scaleFactor = GetZoom() / magnification; // Scale the vector between the cursor and center point vector.x /= magnification; vector.y /= magnification; SetZoom(scaleFactor); // Recenter the window along our scaled vector such that the // cursor becomes our scale axis, remaining fixed on screen GetParent()->RedrawScreen( cursorPosition + vector, warpCursor ); event.Skip(); } #endif void EDA_DRAW_PANEL::OnMouseEvent( wxMouseEvent& event ) { int localbutt = 0; BASE_SCREEN* screen = GetScreen(); if( !screen ) return; /* Adjust value to filter mouse displacement before consider the drag * mouse is really a drag command, not just a movement while click */ #define MIN_DRAG_COUNT_FOR_START_BLOCK_COMMAND 5 if( event.Leaving() ) m_canStartBlock = -1; if( !IsMouseCaptured() ) // No mouse capture in progress. m_requestAutoPan = false; if( GetParent()->IsActive() ) SetFocus(); else return; if( !event.IsButton() && !event.Moving() && !event.Dragging() ) return; if( event.RightDown() ) { OnRightClick( event ); return; } if( m_ignoreMouseEvents ) return; if( event.LeftDown() ) localbutt = GR_M_LEFT_DOWN; if( event.ButtonDClick( 1 ) ) localbutt = GR_M_LEFT_DOWN | GR_M_DCLICK; if( event.MiddleDown() ) localbutt = GR_M_MIDDLE_DOWN; INSTALL_UNBUFFERED_DC( DC, this ); DC.SetBackground( *wxBLACK_BRUSH ); // Compute the cursor position in drawing (logical) units. GetParent()->SetMousePosition( event.GetLogicalPosition( DC ) ); int kbstat = 0; if( event.ShiftDown() ) kbstat |= GR_KB_SHIFT; if( event.ControlDown() ) kbstat |= GR_KB_CTRL; if( event.AltDown() ) kbstat |= GR_KB_ALT; // Calling Double Click and Click functions : if( localbutt == (int) ( GR_M_LEFT_DOWN | GR_M_DCLICK ) ) { if( m_ClickTimer ) { m_ClickTimer->Stop(); wxDELETE( m_ClickTimer ); } GetParent()->OnLeftDClick( &DC, GetParent()->RefPos( true ) ); // inhibit a response to the mouse left button release, // because we have a double click, and we do not want a new // OnLeftClick command at end of this Double Click m_ignoreNextLeftButtonRelease = true; } else if( event.LeftUp() ) { // A block command is in progress: a left up is the end of block // or this is the end of a double click, already seen // Note also m_ignoreNextLeftButtonRelease can be set by // the call to OnLeftClick(), so do not change it after calling OnLeftClick bool ignoreEvt = m_ignoreNextLeftButtonRelease; m_ignoreNextLeftButtonRelease = false; if( screen->m_BlockLocate.GetState() == STATE_NO_BLOCK && !ignoreEvt ) { EDA_ITEM* item = screen->GetCurItem(); m_CursorClickPos = GetParent()->RefPos( true ); // If we have an item already selected, or we are using a tool, // we won't use the disambiguation menu so process the click immediately if( ( item && item->GetFlags() ) || GetParent()->GetToolId() != ID_NO_TOOL_SELECTED ) GetParent()->OnLeftClick( &DC, m_CursorClickPos ); else { wxDELETE( m_ClickTimer ); m_ClickTimer = new wxTimer(this, ID_MOUSE_DOUBLECLICK); m_ClickTimer->StartOnce( m_doubleClickInterval ); } } } else if( !event.LeftIsDown() ) { /* be sure there is a response to a left button release command * even when a LeftUp event is not seen. This happens when a * double click opens a dialog box, and the release mouse button * is made when the dialog box is opened. */ m_ignoreNextLeftButtonRelease = false; } if( event.ButtonDown( wxMOUSE_BTN_MIDDLE ) ) { m_PanStartCenter = GetParent()->GetScrollCenterPosition(); m_PanStartEventPosition = event.GetPosition(); INSTALL_UNBUFFERED_DC( dc, this ); CrossHairOff( &dc ); SetCursor( wxCURSOR_SIZING ); } if( event.ButtonUp( wxMOUSE_BTN_MIDDLE ) ) { INSTALL_UNBUFFERED_DC( dc, this ); CrossHairOn( &dc ); SetCursor( (wxStockCursor) m_currentCursor ); } if( event.MiddleIsDown() ) { wxPoint currentPosition = event.GetPosition(); double scale = GetParent()->GetScreen()->GetScalingFactor(); int x = m_PanStartCenter.x + KiROUND( (double) ( m_PanStartEventPosition.x - currentPosition.x ) / scale ); int y = m_PanStartCenter.y + KiROUND( (double) ( m_PanStartEventPosition.y - currentPosition.y ) / scale ); GetParent()->RedrawScreen( wxPoint( x, y ), false ); } // Calling the general function on mouse changes (and pseudo key commands) GetParent()->GeneralControl( &DC, event.GetLogicalPosition( DC ), 0 ); /*******************************/ /* Control of block commands : */ /*******************************/ // Command block can't start if mouse is dragging a new panel static EDA_DRAW_PANEL* lastPanel; if( lastPanel != this ) { m_minDragEventCount = 0; m_canStartBlock = -1; } /* A new command block can start after a release buttons * and if the drag is enough * This is to avoid a false start block when a dialog box is dismissed, * or when changing panels in hierarchy navigation * or when clicking while and moving mouse */ if( !event.LeftIsDown() && !event.MiddleIsDown() ) { m_minDragEventCount = 0; m_canStartBlock = 0; /* Remember the last cursor position when a drag mouse starts * this is the last position ** before ** clicking a button * this is useful to start a block command from the point where the * mouse was clicked first * (a filter creates a delay for the real block command start, and * we must remember this point) */ m_CursorStartPos = GetParent()->GetCrossHairPosition(); } if( m_enableBlockCommands && !(localbutt & GR_M_DCLICK) ) { if( !screen->IsBlockActive() ) { screen->m_BlockLocate.SetOrigin( m_CursorStartPos ); } if( event.LeftDown() ) { if( screen->m_BlockLocate.GetState() == STATE_BLOCK_MOVE ) { m_requestAutoPan = false; GetParent()->HandleBlockPlace( &DC ); m_ignoreNextLeftButtonRelease = true; } } else if( ( m_canStartBlock >= 0 ) && event.LeftIsDown() && !IsMouseCaptured() ) { // Mouse is dragging: if no block in progress, start a block command. if( screen->m_BlockLocate.GetState() == STATE_NO_BLOCK ) { // Start a block command int cmd_type = kbstat; // A block command is started if the drag is enough. A small // drag is ignored (it is certainly a little mouse move when // clicking) not really a drag mouse if( m_minDragEventCount < MIN_DRAG_COUNT_FOR_START_BLOCK_COMMAND ) m_minDragEventCount++; else { auto cmd = (GetParent()->GetToolId() == ID_ZOOM_SELECTION) ? BLOCK_ZOOM : 0; if( !GetParent()->HandleBlockBegin( &DC, cmd_type, m_CursorStartPos, cmd ) ) { // should not occur: error GetParent()->DisplayToolMsg( wxT( "EDA_DRAW_PANEL::OnMouseEvent() Block Error" ) ); } else { m_requestAutoPan = true; SetCursor( wxCURSOR_SIZING ); } } } } if( event.ButtonUp( wxMOUSE_BTN_LEFT ) ) { /* Release the mouse button: end of block. * The command can finish (DELETE) or have a next command (MOVE, * COPY). However the block command is canceled if the block * size is small because a block command filtering is already * made, this case happens, but only when the on grid cursor has * not moved. */ #define BLOCK_MINSIZE_LIMIT 1 bool BlockIsSmall = ( std::abs( screen->m_BlockLocate.GetWidth() ) < BLOCK_MINSIZE_LIMIT ) && ( std::abs( screen->m_BlockLocate.GetHeight() ) < BLOCK_MINSIZE_LIMIT ); if( (screen->m_BlockLocate.GetState() != STATE_NO_BLOCK) && BlockIsSmall ) { if( m_endMouseCaptureCallback ) { m_endMouseCaptureCallback( this, &DC ); m_requestAutoPan = false; } SetCursor( (wxStockCursor) m_currentCursor ); } else if( screen->m_BlockLocate.GetState() == STATE_BLOCK_END ) { m_requestAutoPan = false; GetParent()->HandleBlockEnd( &DC ); SetCursor( (wxStockCursor) m_currentCursor ); if( screen->m_BlockLocate.GetState() == STATE_BLOCK_MOVE ) { m_requestAutoPan = true; SetCursor( wxCURSOR_HAND ); } } } } // End of block command on a double click // To avoid an unwanted block move command if the mouse is moved while double clicking if( localbutt == (int) ( GR_M_LEFT_DOWN | GR_M_DCLICK ) ) { if( !screen->IsBlockActive() && IsMouseCaptured() ) { m_endMouseCaptureCallback( this, &DC ); } } lastPanel = this; #ifdef WXGTK3 // Screen has to be updated on every operation, otherwise the cursor leaves a trail (when xor // operation is changed to copy) or is not updated at all. Refresh(); #endif } void EDA_DRAW_PANEL::OnCharHook( wxKeyEvent& event ) { wxLogTrace( kicadTraceKeyEvent, "EDA_DRAW_PANEL::OnCharHook %s", dump( event ) ); event.Skip(); } void EDA_DRAW_PANEL::OnKeyEvent( wxKeyEvent& event ) { int localkey; wxPoint pos; wxLogTrace( kicadTraceKeyEvent, "EDA_DRAW_PANEL::OnKeyEvent %s", dump( event ) ); localkey = event.GetKeyCode(); switch( localkey ) { default: break; case WXK_ESCAPE: m_abortRequest = true; if( IsMouseCaptured() ) EndMouseCapture(); else EndMouseCapture( ID_NO_TOOL_SELECTED, m_defaultCursor, wxEmptyString ); break; } /* Normalize keys code to easily handle keys from Ctrl+A to Ctrl+Z * They have an ascii code from 1 to 27 remapped * to GR_KB_CTRL + 'A' to GR_KB_CTRL + 'Z' */ if( event.ControlDown() && localkey >= WXK_CONTROL_A && localkey <= WXK_CONTROL_Z ) localkey += 'A' - 1; /* Disallow shift for keys that have two keycodes on them (e.g. number and * punctuation keys) leaving only the "letter keys" of A-Z. * Then, you can have, e.g. Ctrl-5 and Ctrl-% (GB layout) * and Ctrl-( and Ctrl-5 (FR layout). * Otherwise, you'd have to have to say Ctrl-Shift-5 on a FR layout */ bool keyIsLetter = ( localkey >= 'A' && localkey <= 'Z' ) || ( localkey >= 'a' && localkey <= 'z' ); if( event.ShiftDown() && ( keyIsLetter || localkey > 256 ) ) localkey |= GR_KB_SHIFT; if( event.ControlDown() ) localkey |= GR_KB_CTRL; if( event.AltDown() ) localkey |= GR_KB_ALT; INSTALL_UNBUFFERED_DC( DC, this ); // Some key commands use the current mouse position: refresh it. pos = wxGetMousePosition() - GetScreenPosition(); // Compute the cursor position in drawing units. Also known as logical units to wxDC. pos = wxPoint( DC.DeviceToLogicalX( pos.x ), DC.DeviceToLogicalY( pos.y ) ); GetParent()->SetMousePosition( pos ); if( !GetParent()->GeneralControl( &DC, pos, localkey ) ) event.Skip(); } void EDA_DRAW_PANEL::OnPan( wxCommandEvent& event ) { int x, y; int ppux, ppuy; int unitsX, unitsY; int maxX, maxY; int tmpX, tmpY; GetViewStart( &x, &y ); GetScrollPixelsPerUnit( &ppux, &ppuy ); GetVirtualSize( &unitsX, &unitsY ); tmpX = x; tmpY = y; maxX = unitsX; maxY = unitsY; unitsX /= ppux; unitsY /= ppuy; wxLogTrace( kicadTraceCoords, wxT( "Scroll center position before pan: (%d, %d)" ), tmpX, tmpY ); switch( event.GetId() ) { case ID_PAN_UP: y -= m_scrollIncrementY; break; case ID_PAN_DOWN: y += m_scrollIncrementY; break; case ID_PAN_LEFT: x -= m_scrollIncrementX; break; case ID_PAN_RIGHT: x += m_scrollIncrementX; break; default: wxLogDebug( wxT( "Unknown ID %d in EDA_DRAW_PANEL::OnPan()." ), event.GetId() ); } bool updateCenterScrollPos = true; if( x < 0 ) { x = 0; updateCenterScrollPos = false; } if( y < 0 ) { y = 0; updateCenterScrollPos = false; } if( x > maxX ) { x = maxX; updateCenterScrollPos = false; } if( y > maxY ) { y = maxY; updateCenterScrollPos = false; } // Don't update the scroll position beyond the scroll limits. if( updateCenterScrollPos ) { double scale = GetParent()->GetScreen()->GetScalingFactor(); wxPoint center = GetParent()->GetScrollCenterPosition(); center.x += KiROUND( (double) ( x - tmpX ) / scale ); center.y += KiROUND( (double) ( y - tmpY ) / scale ); GetParent()->SetScrollCenterPosition( center ); wxLogTrace( kicadTraceCoords, wxT( "Scroll center position after pan: (%d, %d)" ), center.x, center.y ); } Scroll( x/ppux, y/ppuy ); } void EDA_DRAW_PANEL::EndMouseCapture( int id, int cursor, const wxString& title, bool aCallEndFunc ) { if( m_mouseCaptureCallback && m_endMouseCaptureCallback && aCallEndFunc ) { INSTALL_UNBUFFERED_DC( dc, this ); m_endMouseCaptureCallback( this, &dc ); } m_mouseCaptureCallback = NULL; m_endMouseCaptureCallback = NULL; m_requestAutoPan = false; if( id != -1 && cursor != -1 ) { wxASSERT( cursor > wxCURSOR_NONE && cursor < wxCURSOR_MAX ); GetParent()->SetToolID( id, cursor, title ); } } void EDA_DRAW_PANEL::CallMouseCapture( wxDC* aDC, const wxPoint& aPosition, bool aErase ) { wxCHECK_RET( aDC != NULL, wxT( "Invalid device context." ) ); wxCHECK_RET( m_mouseCaptureCallback != NULL, wxT( "Mouse capture callback not set." ) ); m_mouseCaptureCallback( this, aDC, aPosition, aErase ); } void EDA_DRAW_PANEL::CallEndMouseCapture( wxDC* aDC ) { wxCHECK_RET( aDC != NULL, wxT( "Invalid device context." ) ); // CallEndMouseCapture is sometimes called with m_endMouseCaptureCallback == NULL // for instance after an ABORT in block paste. if( m_endMouseCaptureCallback ) m_endMouseCaptureCallback( this, aDC ); }