/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2004 Jean-Pierre Charras, jean-pierre.charras@gipsa-lab.inpg.fr * Copyright (C) 2008-2011 Wayne Stambaugh * Copyright (C) 2004-2011 KiCad Developers, see change_log.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 drawframe.cpp */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /** * Definition for enabling and disabling scroll bar setting trace output. See the * wxWidgets documentation on useing the WXTRACE environment variable. */ static const wxString traceScrollSettings( wxT( "KicadScrollSettings" ) ); // Configuration entry names. static const wxString CursorShapeEntryKeyword( wxT( "CursorShape" ) ); static const wxString ShowGridEntryKeyword( wxT( "ShowGrid" ) ); static const wxString GridColorEntryKeyword( wxT( "GridColor" ) ); static const wxString LastGridSizeId( wxT( "_LastGridSize" ) ); BEGIN_EVENT_TABLE( EDA_DRAW_FRAME, EDA_BASE_FRAME ) EVT_MOUSEWHEEL( EDA_DRAW_FRAME::OnMouseEvent ) EVT_MENU_OPEN( EDA_DRAW_FRAME::OnMenuOpen ) EVT_ACTIVATE( EDA_DRAW_FRAME::OnActivate ) EVT_MENU_RANGE( ID_ZOOM_IN, ID_ZOOM_REDRAW, EDA_DRAW_FRAME::OnZoom ) EVT_MENU_RANGE( ID_OFFCENTER_ZOOM_IN, ID_OFFCENTER_ZOOM_OUT, EDA_DRAW_FRAME::OnZoom ) EVT_MENU_RANGE( ID_POPUP_ZOOM_START_RANGE, ID_POPUP_ZOOM_END_RANGE, EDA_DRAW_FRAME::OnZoom ) EVT_MENU_RANGE( ID_POPUP_GRID_LEVEL_1000, ID_POPUP_GRID_USER, EDA_DRAW_FRAME::OnSelectGrid ) EVT_TOOL( ID_TB_OPTIONS_SHOW_GRID, EDA_DRAW_FRAME::OnToggleGridState ) EVT_TOOL_RANGE( ID_TB_OPTIONS_SELECT_UNIT_MM, ID_TB_OPTIONS_SELECT_UNIT_INCH, EDA_DRAW_FRAME::OnSelectUnits ) EVT_TOOL( ID_TB_OPTIONS_SELECT_CURSOR, EDA_DRAW_FRAME::OnToggleCrossHairStyle ) EVT_UPDATE_UI( wxID_UNDO, EDA_DRAW_FRAME::OnUpdateUndo ) EVT_UPDATE_UI( wxID_REDO, EDA_DRAW_FRAME::OnUpdateRedo ) EVT_UPDATE_UI( ID_TB_OPTIONS_SHOW_GRID, EDA_DRAW_FRAME::OnUpdateGrid ) EVT_UPDATE_UI( ID_TB_OPTIONS_SELECT_CURSOR, EDA_DRAW_FRAME::OnUpdateCrossHairStyle ) EVT_UPDATE_UI_RANGE( ID_TB_OPTIONS_SELECT_UNIT_MM, ID_TB_OPTIONS_SELECT_UNIT_INCH, EDA_DRAW_FRAME::OnUpdateUnits ) END_EVENT_TABLE() EDA_DRAW_FRAME::EDA_DRAW_FRAME( wxWindow* aParent, ID_DRAWFRAME_TYPE aFrameType, const wxString& aTitle, const wxPoint& aPos, const wxSize& aSize, long aStyle, const wxString & aFrameName ) : EDA_BASE_FRAME( aParent, aFrameType, aTitle, aPos, aSize, aStyle, aFrameName ) { m_drawToolBar = NULL; m_optionsToolBar = NULL; m_gridSelectBox = NULL; m_zoomSelectBox = NULL; m_HotkeysZoomAndGridList = NULL; m_canvas = NULL; m_messagePanel = NULL; m_currentScreen = NULL; m_toolId = ID_NO_TOOL_SELECTED; m_lastDrawToolId = ID_NO_TOOL_SELECTED; m_showAxis = false; // true to draw axis. m_showBorderAndTitleBlock = false; // true to display reference sheet. m_showGridAxis = false; // true to draw the grid axis m_cursorShape = 0; m_LastGridSizeId = 0; m_DrawGrid = true; // hide/Show grid. default = show m_GridColor = DARKGRAY; // Grid color m_snapToGrid = true; m_MsgFrameHeight = EDA_MSG_PANEL::GetRequiredHeight(); //#define ZOOM_DISPLAY_SIZE 60 //#define COORD_DISPLAY_SIZE 165 //#define DELTA_DISPLAY_SIZE 245 //#define UNITS_DISPLAY_SIZE 65 #define FUNCTION_DISPLAY_SIZE 110 CreateStatusBar( 6 ); // set the size of the status bar subwindows: wxWindow* stsbar = GetStatusBar(); int dims[] = { // balance of status bar on far left is set to a default or whatever is left over. -1, // When using GetTextSize() remember the width of '1' is not the same // as the width of '0' unless the font is fixed width, and it usually won't be. // zoom: GetTextSize( wxT( "Z 762000" ), stsbar ).x + 10, // cursor coords GetTextSize( wxT( "X 0234.567890 Y 0234.567890" ), stsbar ).x + 10, // delta distances GetTextSize( wxT( "dx 0234.567890 dx 0234.567890 d 0234.567890" ), stsbar ).x + 10, // units display, Inches is bigger than mm GetTextSize( _( "Inches" ), stsbar ).x + 10, FUNCTION_DISPLAY_SIZE, }; SetStatusWidths( DIM( dims ), dims ); // Create child subwindows. GetClientSize( &m_FrameSize.x, &m_FrameSize.y ); m_FramePos.x = m_FramePos.y = 0; m_FrameSize.y -= m_MsgFrameHeight; m_canvas = new EDA_DRAW_PANEL( this, -1, wxPoint( 0, 0 ), m_FrameSize ); m_messagePanel = new EDA_MSG_PANEL( this, -1, wxPoint( 0, m_FrameSize.y ), wxSize( m_FrameSize.x, m_MsgFrameHeight ) ); m_messagePanel->SetBackgroundColour( wxColour( ColorRefs[LIGHTGRAY].m_Red, ColorRefs[LIGHTGRAY].m_Green, ColorRefs[LIGHTGRAY].m_Blue ) ); } EDA_DRAW_FRAME::~EDA_DRAW_FRAME() { SAFE_DELETE( m_currentScreen ); m_auimgr.UnInit(); } void EDA_DRAW_FRAME::unitsChangeRefresh() { UpdateStatusBar(); EDA_ITEM* item = GetScreen()->GetCurItem(); if( item ) SetMsgPanel( item ); } void EDA_DRAW_FRAME::EraseMsgBox() { if( m_messagePanel ) m_messagePanel->EraseMsgBox(); } void EDA_DRAW_FRAME::OnActivate( wxActivateEvent& event ) { m_FrameIsActive = event.GetActive(); if( m_canvas ) m_canvas->SetCanStartBlock( -1 ); event.Skip(); // required under wxMAC } void EDA_DRAW_FRAME::OnMenuOpen( wxMenuEvent& event ) { if( m_canvas ) m_canvas->SetCanStartBlock( -1 ); event.Skip(); } /* function SkipNextLeftButtonReleaseEvent * after calling this function, if the left mouse button * is down, the next left mouse button release event will be ignored. * It is is usefull for instance when closing a dialog on a mouse click, * to skip the next mouse left button release event * by the parent window, because the mouse button * clicked on the dialog is often released in the parent frame, * and therefore creates a left button released mouse event * which can be unwanted in some cases */ void EDA_DRAW_FRAME::SkipNextLeftButtonReleaseEvent() { m_canvas->SetIgnoreLeftButtonReleaseEvent( true ); } void EDA_DRAW_FRAME::OnToggleGridState( wxCommandEvent& aEvent ) { SetGridVisibility( !IsGridVisible() ); m_canvas->Refresh(); } void EDA_DRAW_FRAME::OnSelectUnits( wxCommandEvent& aEvent ) { if( aEvent.GetId() == ID_TB_OPTIONS_SELECT_UNIT_MM && g_UserUnit != MILLIMETRES ) { g_UserUnit = MILLIMETRES; unitsChangeRefresh(); } else if( aEvent.GetId() == ID_TB_OPTIONS_SELECT_UNIT_INCH && g_UserUnit != INCHES ) { g_UserUnit = INCHES; unitsChangeRefresh(); } } void EDA_DRAW_FRAME::OnToggleCrossHairStyle( wxCommandEvent& aEvent ) { INSTALL_UNBUFFERED_DC( dc, m_canvas ); m_canvas->CrossHairOff( &dc ); m_cursorShape = !m_cursorShape; m_canvas->CrossHairOn( &dc ); } void EDA_DRAW_FRAME::OnUpdateUndo( wxUpdateUIEvent& aEvent ) { if( GetScreen() ) aEvent.Enable( GetScreen()->GetUndoCommandCount() > 0 ); } void EDA_DRAW_FRAME::OnUpdateRedo( wxUpdateUIEvent& aEvent ) { if( GetScreen() ) aEvent.Enable( GetScreen()->GetRedoCommandCount() > 0 ); } void EDA_DRAW_FRAME::OnUpdateUnits( wxUpdateUIEvent& aEvent ) { bool enable; enable = ( ((aEvent.GetId() == ID_TB_OPTIONS_SELECT_UNIT_MM) && (g_UserUnit == MILLIMETRES)) || ((aEvent.GetId() == ID_TB_OPTIONS_SELECT_UNIT_INCH) && (g_UserUnit == INCHES)) ); aEvent.Check( enable ); DisplayUnitsMsg(); } void EDA_DRAW_FRAME::OnUpdateGrid( wxUpdateUIEvent& aEvent ) { wxString tool_tip = IsGridVisible() ? _( "Hide grid" ) : _( "Show grid" ); aEvent.Check( IsGridVisible() ); m_optionsToolBar->SetToolShortHelp( ID_TB_OPTIONS_SHOW_GRID, tool_tip ); } void EDA_DRAW_FRAME::OnUpdateCrossHairStyle( wxUpdateUIEvent& aEvent ) { aEvent.Check( m_cursorShape ); } void EDA_DRAW_FRAME::ReCreateAuxiliaryToolbar() { } void EDA_DRAW_FRAME::ReCreateMenuBar() { } void EDA_DRAW_FRAME::OnHotKey( wxDC* aDC, int aHotKey, const wxPoint& aPosition, EDA_ITEM* aItem ) { } void EDA_DRAW_FRAME::ToolOnRightClick( wxCommandEvent& event ) { } void EDA_DRAW_FRAME::PrintPage( wxDC* aDC,int aPrintMask, bool aPrintMirrorMode, void* aData ) { wxMessageBox( wxT("EDA_DRAW_FRAME::PrintPage() error") ); } void EDA_DRAW_FRAME::OnSelectGrid( wxCommandEvent& event ) { int* clientData; int id = ID_POPUP_GRID_LEVEL_100; if( event.GetEventType() == wxEVT_COMMAND_COMBOBOX_SELECTED ) { if( m_gridSelectBox == NULL ) return; /* * Don't use wxCommandEvent::GetClientData() here. It always * returns NULL in GTK. This solution is not as elegant but * it works. */ int index = m_gridSelectBox->GetSelection(); wxASSERT( index != wxNOT_FOUND ); clientData = (int*) m_gridSelectBox->wxItemContainer::GetClientData( index ); if( clientData != NULL ) id = *clientData; } else { id = event.GetId(); /* Update the grid select combobox if the grid size was changed * by menu event. */ if( m_gridSelectBox != NULL ) { for( size_t i = 0; i < m_gridSelectBox->GetCount(); i++ ) { clientData = (int*) m_gridSelectBox->wxItemContainer::GetClientData( i ); if( clientData && id == *clientData ) { m_gridSelectBox->SetSelection( i ); break; } } } } BASE_SCREEN* screen = GetScreen(); if( screen->GetGridId() == id ) return; /* * This allows for saving non-sequential command ID offsets used that * may be used in the grid size combobox. Do not use the selection * index returned by GetSelection(). */ m_LastGridSizeId = id - ID_POPUP_GRID_LEVEL_1000; screen->SetGrid( id ); screen->SetCrossHairPosition( screen->RefPos( true ) ); Refresh(); } void EDA_DRAW_FRAME::OnSelectZoom( wxCommandEvent& event ) { if( m_zoomSelectBox == NULL ) return; // Should not happen! int id = m_zoomSelectBox->GetCurrentSelection(); if( id < 0 || !( id < (int)m_zoomSelectBox->GetCount() ) ) return; if( id == 0 ) // Auto zoom (Fit in Page) { Zoom_Automatique( true ); } else { id--; double selectedZoom = GetScreen()->m_ZoomList[id]; if( GetScreen()->GetZoom() == selectedZoom ) return; GetScreen()->SetZoom( selectedZoom ); RedrawScreen( GetScreen()->GetScrollCenterPosition(), false ); } } double EDA_DRAW_FRAME::GetZoom() { return GetScreen()->GetZoom(); } void EDA_DRAW_FRAME::OnMouseEvent( wxMouseEvent& event ) { event.Skip(); } void EDA_DRAW_FRAME::OnLeftDClick( wxDC* DC, const wxPoint& MousePos ) { } void EDA_DRAW_FRAME::DisplayToolMsg( const wxString& msg ) { SetStatusText( msg, 5 ); } void EDA_DRAW_FRAME::DisplayUnitsMsg() { wxString msg; switch( g_UserUnit ) { case INCHES: msg = _( "Inches" ); break; case MILLIMETRES: msg = _( "mm" ); break; default: msg = _( "Units" ); break; } SetStatusText( msg, 4 ); } void EDA_DRAW_FRAME::OnSize( wxSizeEvent& SizeEv ) { m_FrameSize = GetClientSize( ); SizeEv.Skip(); } void EDA_DRAW_FRAME::SetToolID( int aId, int aCursor, const wxString& aToolMsg ) { // Keep default cursor in toolbars SetCursor( wxNullCursor ); // Change m_canvas cursor if requested. if( m_canvas && aCursor >= 0 ) m_canvas->SetCurrentCursor( aCursor ); DisplayToolMsg( aToolMsg ); if( aId < 0 ) return; wxCHECK2_MSG( aId >= ID_NO_TOOL_SELECTED, aId = ID_NO_TOOL_SELECTED, wxString::Format( wxT( "Current tool ID cannot be set to %d." ), aId ) ); m_toolId = aId; } void EDA_DRAW_FRAME::OnGrid( int grid_type ) { } wxPoint EDA_DRAW_FRAME::GetGridPosition( const wxPoint& aPosition ) const { wxPoint pos = aPosition; if( m_currentScreen != NULL && m_snapToGrid ) pos = m_currentScreen->GetNearestGridPosition( aPosition ); return pos; } int EDA_DRAW_FRAME::ReturnBlockCommand( int key ) { return 0; } void EDA_DRAW_FRAME::InitBlockPasteInfos() { GetScreen()->m_BlockLocate.ClearItemsList(); m_canvas->SetMouseCaptureCallback( NULL ); } void EDA_DRAW_FRAME::HandleBlockPlace( wxDC* DC ) { } bool EDA_DRAW_FRAME::HandleBlockEnd( wxDC* DC ) { return false; } void EDA_DRAW_FRAME::SetLanguage( wxCommandEvent& event ) { EDA_BASE_FRAME::SetLanguage( event ); } void EDA_DRAW_FRAME::UpdateStatusBar() { wxString Line; BASE_SCREEN* screen = GetScreen(); if( !screen ) return; // Display Zoom level: zoom = zoom_coeff/ZoomScalar Line.Printf( wxT( "Z %g" ), screen->GetZoom() ); SetStatusText( Line, 1 ); // Absolute and relative cursor positions are handled by overloading this function and // handling the internal to user units conversion at the appropriate level. // refresh units display DisplayUnitsMsg(); } void EDA_DRAW_FRAME::LoadSettings() { wxASSERT( wxGetApp().GetSettings() != NULL ); wxConfig* cfg = wxGetApp().GetSettings(); EDA_BASE_FRAME::LoadSettings(); cfg->Read( m_FrameName + CursorShapeEntryKeyword, &m_cursorShape, ( long )0 ); bool btmp; if ( cfg->Read( m_FrameName + ShowGridEntryKeyword, &btmp ) ) SetGridVisibility( btmp ); int itmp; if( cfg->Read( m_FrameName + GridColorEntryKeyword, &itmp ) ) SetGridColor( ColorFromInt( itmp ) ); cfg->Read( m_FrameName + LastGridSizeId, &m_LastGridSizeId, 0L ); } void EDA_DRAW_FRAME::SaveSettings() { wxASSERT( wxGetApp().GetSettings() != NULL ); wxConfig* cfg = wxGetApp().GetSettings(); EDA_BASE_FRAME::SaveSettings(); cfg->Write( m_FrameName + CursorShapeEntryKeyword, m_cursorShape ); cfg->Write( m_FrameName + ShowGridEntryKeyword, IsGridVisible() ); cfg->Write( m_FrameName + GridColorEntryKeyword, ( long ) GetGridColor() ); cfg->Write( m_FrameName + LastGridSizeId, ( long ) m_LastGridSizeId ); } void EDA_DRAW_FRAME::AppendMsgPanel( const wxString& textUpper, const wxString& textLower, EDA_COLOR_T color, int pad ) { if( m_messagePanel == NULL ) return; m_messagePanel->AppendMessage( textUpper, textLower, color, pad ); } void EDA_DRAW_FRAME::ClearMsgPanel( void ) { if( m_messagePanel == NULL ) return; m_messagePanel->EraseMsgBox(); } void EDA_DRAW_FRAME::SetMsgPanel( const MSG_PANEL_ITEMS& aList ) { if( m_messagePanel == NULL && !aList.empty() ) return; ClearMsgPanel(); for( unsigned i = 0; i < aList.size(); i++ ) m_messagePanel->AppendMessage( aList[i] ); } void EDA_DRAW_FRAME::SetMsgPanel( EDA_ITEM* aItem ) { wxCHECK_RET( aItem != NULL, wxT( "Invalid EDA_ITEM pointer. Bad programmer." ) ); MSG_PANEL_ITEMS items; aItem->GetMsgPanelInfo( items ); SetMsgPanel( items ); } wxString EDA_DRAW_FRAME::CoordinateToString( int aValue, bool aConvertToMils ) const { return ::CoordinateToString( aValue, aConvertToMils ); } wxString EDA_DRAW_FRAME::LengthDoubleToString( double aValue, bool aConvertToMils ) const { return ::LengthDoubleToString( aValue, aConvertToMils ); } bool EDA_DRAW_FRAME::HandleBlockBegin( wxDC* aDC, int aKey, const wxPoint& aPosition ) { BLOCK_SELECTOR* Block = &GetScreen()->m_BlockLocate; if( ( Block->GetCommand() != BLOCK_IDLE ) || ( Block->GetState() != STATE_NO_BLOCK ) ) return false; Block->SetCommand( (BLOCK_COMMAND_T) ReturnBlockCommand( aKey ) ); if( Block->GetCommand() == 0 ) return false; switch( Block->GetCommand() ) { case BLOCK_IDLE: break; case BLOCK_MOVE: /* Move */ case BLOCK_DRAG: /* Drag */ case BLOCK_COPY: /* Copy */ case BLOCK_DELETE: /* Delete */ case BLOCK_SAVE: /* Save */ case BLOCK_ROTATE: /* Rotate 90 deg */ case BLOCK_FLIP: /* Flip */ case BLOCK_ZOOM: /* Window Zoom */ case BLOCK_MIRROR_X: case BLOCK_MIRROR_Y: /* mirror */ case BLOCK_PRESELECT_MOVE: /* Move with preselection list*/ Block->InitData( m_canvas, aPosition ); break; case BLOCK_PASTE: Block->InitData( m_canvas, aPosition ); Block->SetLastCursorPosition( wxPoint( 0, 0 ) ); InitBlockPasteInfos(); if( Block->GetCount() == 0 ) /* No data to paste */ { DisplayError( this, wxT( "No Block to paste" ), 20 ); GetScreen()->m_BlockLocate.SetCommand( BLOCK_IDLE ); m_canvas->SetMouseCaptureCallback( NULL ); return true; } if( !m_canvas->IsMouseCaptured() ) { Block->ClearItemsList(); DisplayError( this, wxT( "EDA_DRAW_FRAME::HandleBlockBegin() Err: m_mouseCaptureCallback NULL" ) ); return true; } Block->SetState( STATE_BLOCK_MOVE ); m_canvas->CallMouseCapture( aDC, aPosition, false ); break; default: { wxString msg; msg << wxT( "EDA_DRAW_FRAME::HandleBlockBegin() error: Unknown command " ) << Block->GetCommand(); DisplayError( this, msg ); } break; } Block->SetMessageBlock( this ); return true; } // See comment in classpcb.cpp near line 66 //static const double MAX_AXIS = 1518500251; // However I am not seeing a problem with this size yet: static const double MAX_AXIS = INT_MAX - 100; #define VIRT_MIN (-MAX_AXIS/2.0) ///< min X or Y coordinate in virtual space #define VIRT_MAX (MAX_AXIS/2.0) ///< max X or Y coordinate in virtual space void EDA_DRAW_FRAME::AdjustScrollBars( const wxPoint& aCenterPositionIU ) { BASE_SCREEN* screen = GetScreen(); if( screen == NULL || m_canvas == NULL ) return; // There are no safety limits on these calculations, so in NANOMETRES build it // still blows up. This is incomplete work. double scale = screen->GetScalingFactor(); wxLogTrace( traceScrollSettings, wxT( "Center Position = ( %d, %d ), scale = %.10g" ), aCenterPositionIU.x, aCenterPositionIU.y, scale ); // Calculate the portion of the drawing that can be displayed in the // client area at the current zoom level. // visible viewport in device units ~ pixels wxSize clientSizeDU = m_canvas->GetClientSize(); // Size of the client window in IU DSIZE clientSizeIU( clientSizeDU.x / scale, clientSizeDU.y / scale ); // Full drawing or "page" rectangle in internal units DBOX pageRectIU( 0, 0, GetPageSizeIU().x, GetPageSizeIU().y ); // The upper left corner of the client rectangle in internal units. double xIU = aCenterPositionIU.x - clientSizeIU.x / 2.0; double yIU = aCenterPositionIU.y - clientSizeIU.y / 2.0; // If drawn around the center, adjust the client rectangle accordingly. if( screen->m_Center ) { // half page offset. xIU += pageRectIU.width / 2.0; yIU += pageRectIU.height / 2.0; } DBOX clientRectIU( xIU, yIU, clientSizeIU.x, clientSizeIU.y ); wxPoint centerPositionIU; #if 1 || defined( USE_PCBNEW_NANOMETRES ) // put "int" limits on the clientRect if( clientRectIU.GetLeft() < VIRT_MIN ) clientRectIU.MoveLeftTo( VIRT_MIN ); if( clientRectIU.GetTop() < VIRT_MIN ) clientRectIU.MoveTopTo( VIRT_MIN ); if( clientRectIU.GetRight() > VIRT_MAX ) clientRectIU.MoveRightTo( VIRT_MAX ); if( clientRectIU.GetBottom() > VIRT_MAX ) clientRectIU.MoveBottomTo( VIRT_MAX ); #endif centerPositionIU.x = KiROUND( clientRectIU.x + clientRectIU.width/2 ); centerPositionIU.y = KiROUND( clientRectIU.y + clientRectIU.height/2 ); if( screen->m_Center ) { centerPositionIU.x -= KiROUND( pageRectIU.width / 2.0 ); centerPositionIU.y -= KiROUND( pageRectIU.height / 2.0 ); } DSIZE virtualSizeIU; if( pageRectIU.GetLeft() < clientRectIU.GetLeft() && pageRectIU.GetRight() > clientRectIU.GetRight() ) { virtualSizeIU.x = pageRectIU.GetSize().x; } else { double pageCenterX = pageRectIU.x + ( pageRectIU.width / 2 ); double clientCenterX = clientRectIU.x + ( clientRectIU.width / 2 ); if( clientRectIU.width > pageRectIU.width ) { if( pageCenterX > clientCenterX ) virtualSizeIU.x = ( pageCenterX - clientRectIU.GetLeft() ) * 2; else if( pageCenterX < clientCenterX ) virtualSizeIU.x = ( clientRectIU.GetRight() - pageCenterX ) * 2; else virtualSizeIU.x = clientRectIU.width; } else { if( pageCenterX > clientCenterX ) virtualSizeIU.x = pageRectIU.width + ( (pageRectIU.GetLeft() - clientRectIU.GetLeft() ) * 2 ); else if( pageCenterX < clientCenterX ) virtualSizeIU.x = pageRectIU.width + ( (clientRectIU.GetRight() - pageRectIU.GetRight() ) * 2 ); else virtualSizeIU.x = pageRectIU.width; } } if( pageRectIU.GetTop() < clientRectIU.GetTop() && pageRectIU.GetBottom() > clientRectIU.GetBottom() ) { virtualSizeIU.y = pageRectIU.GetSize().y; } else { double pageCenterY = pageRectIU.y + ( pageRectIU.height / 2 ); double clientCenterY = clientRectIU.y + ( clientRectIU.height / 2 ); if( clientRectIU.height > pageRectIU.height ) { if( pageCenterY > clientCenterY ) virtualSizeIU.y = ( pageCenterY - clientRectIU.GetTop() ) * 2; else if( pageCenterY < clientCenterY ) virtualSizeIU.y = ( clientRectIU.GetBottom() - pageCenterY ) * 2; else virtualSizeIU.y = clientRectIU.height; } else { if( pageCenterY > clientCenterY ) virtualSizeIU.y = pageRectIU.height + ( ( pageRectIU.GetTop() - clientRectIU.GetTop() ) * 2 ); else if( pageCenterY < clientCenterY ) virtualSizeIU.y = pageRectIU.height + ( ( clientRectIU.GetBottom() - pageRectIU.GetBottom() ) * 2 ); else virtualSizeIU.y = pageRectIU.height; } } #if 1 || defined( USE_PCBNEW_NANOMETRES ) // put "int" limits on the virtualSizeIU virtualSizeIU.x = std::min( virtualSizeIU.x, MAX_AXIS ); virtualSizeIU.y = std::min( virtualSizeIU.y, MAX_AXIS ); #endif if( screen->m_Center ) { screen->m_DrawOrg.x = -KiROUND( virtualSizeIU.x / 2.0 ); screen->m_DrawOrg.y = -KiROUND( virtualSizeIU.y / 2.0 ); } else { screen->m_DrawOrg.x = -KiROUND( ( virtualSizeIU.x - pageRectIU.width ) / 2.0 ); screen->m_DrawOrg.y = -KiROUND( ( virtualSizeIU.y - pageRectIU.height ) / 2.0 ); } /* Always set scrollbar pixels per unit to 1 unless you want the zoom * around cursor to jump around. This reported problem occurs when the * zoom point is not on a pixel per unit increment. If you set the * pixels per unit to 10, you have potential for the zoom point to * jump around +/-5 pixels from the nearest grid point. */ screen->m_ScrollPixelsPerUnitX = screen->m_ScrollPixelsPerUnitY = 1; // Number of scroll bar units for the given zoom level in device units. double unitsX = virtualSizeIU.x * scale; double unitsY = virtualSizeIU.y * scale; // Calculate the scroll bar position in internal units to place the // center position at the center of client rectangle. screen->SetScrollCenterPosition( centerPositionIU ); double posX = centerPositionIU.x - clientRectIU.width /2.0 - screen->m_DrawOrg.x; double posY = centerPositionIU.y - clientRectIU.height/2.0 - screen->m_DrawOrg.y; // Convert scroll bar position to device units. posX = KiROUND( posX * scale ); posY = KiROUND( posY * scale ); if( posX < 0 ) { wxLogTrace( traceScrollSettings, wxT( "Required scroll bar X position %.10g" ), posX ); posX = 0; } if( posX > unitsX ) { wxLogTrace( traceScrollSettings, wxT( "Required scroll bar X position %.10g" ), posX ); posX = unitsX; } if( posY < 0 ) { wxLogTrace( traceScrollSettings, wxT( "Required scroll bar Y position %.10g" ), posY ); posY = 0; } if( posY > unitsY ) { wxLogTrace( traceScrollSettings, wxT( "Required scroll bar Y position %.10g" ), posY ); posY = unitsY; } screen->m_ScrollbarPos = wxPoint( KiROUND( posX ), KiROUND( posY ) ); screen->m_ScrollbarNumber = wxSize( KiROUND( unitsX ), KiROUND( unitsY ) ); wxLogTrace( traceScrollSettings, wxT( "Drawing = (%.10g, %.10g), Client = (%.10g, %.10g), Offset = (%d, %d), SetScrollbars(%d, %d, %d, %d, %d, %d)" ), virtualSizeIU.x, virtualSizeIU.y, clientSizeIU.x, clientSizeIU.y, screen->m_DrawOrg.x, screen->m_DrawOrg.y, screen->m_ScrollPixelsPerUnitX, screen->m_ScrollPixelsPerUnitY, screen->m_ScrollbarNumber.x, screen->m_ScrollbarNumber.y, screen->m_ScrollbarPos.x, screen->m_ScrollbarPos.y ); bool noRefresh = true; m_canvas->SetScrollbars( screen->m_ScrollPixelsPerUnitX, screen->m_ScrollPixelsPerUnitY, screen->m_ScrollbarNumber.x, screen->m_ScrollbarNumber.y, screen->m_ScrollbarPos.x, screen->m_ScrollbarPos.y, noRefresh ); }