X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77ffb5937e89927b621128789401db8921fe580f..80a779275ae04443c568dca919adb26cf6f5002c:/src/common/dcbase.cpp?ds=sidebyside diff --git a/src/common/dcbase.cpp b/src/common/dcbase.cpp index d1d0af41f2..84ac42aa3c 100644 --- a/src/common/dcbase.cpp +++ b/src/common/dcbase.cpp @@ -1,22 +1,18 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: common/dcbase.cpp +// Name: src/common/dcbase.cpp // Purpose: generic methods of the wxDC Class // Author: Vadim Zeitlin // Modified by: // Created: 05/25/99 // RCS-ID: $Id$ // Copyright: (c) wxWidgets team -// Licence: wxWidgets licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ // declarations // ============================================================================ -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "dcbase.h" -#endif - // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- @@ -29,15 +25,33 @@ #endif #include "wx/dc.h" +#include "wx/dcbuffer.h" // for IMPLEMENT_DYNAMIC_CLASS + +#ifndef WX_PRECOMP + #include "wx/math.h" +#endif -#include +// bool wxDCBase::sm_cacheing = false; -// bool wxDCBase::sm_cacheing = FALSE; +IMPLEMENT_ABSTRACT_CLASS(wxDCBase, wxObject) // ============================================================================ // implementation // ============================================================================ +IMPLEMENT_DYNAMIC_CLASS(wxBufferedDC, wxMemoryDC) +IMPLEMENT_ABSTRACT_CLASS(wxBufferedPaintDC, wxBufferedDC) + +#if WXWIN_COMPATIBILITY_2_6 +void wxDCBase::BeginDrawing() +{ +} + +void wxDCBase::EndDrawing() +{ +} +#endif // WXWIN_COMPATIBILITY_2_6 + // ---------------------------------------------------------------------------- // special symbols // ---------------------------------------------------------------------------- @@ -291,7 +305,7 @@ static bool wx_spline_add_point(double x, double y) point->x = (int) x; point->y = (int) y; wx_spline_point_list.Append((wxObject*)point); - return TRUE; + return true; } static void wx_spline_draw_point_array(wxDCBase *dc) @@ -316,6 +330,10 @@ void wxDCBase::DoDrawSpline( wxList *points ) double x1, y1, x2, y2; wxList::compatibility_iterator node = points->GetFirst(); + if (node == wxList::compatibility_iterator()) + // empty list + return; + p = (wxPoint *)node->GetData(); x1 = p->x; @@ -371,12 +389,12 @@ void wxDCBase::DoDrawSpline( wxList *points ) // Each element of the widths array will be the width of the string up to and -// including the coresoponding character in text. This is the generic +// including the corresponding character in text. This is the generic // implementation, the port-specific classes should do this with native APIs // if available and if faster. Note: pango_layout_index_to_pos is much slower // than calling GetTextExtent!! -#define FWC_SIZE 128 +#define FWC_SIZE 256 class FontWidthCache { @@ -403,15 +421,14 @@ bool wxDCBase::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) { int totalWidth = 0; - size_t i, len = text.Length(); + const size_t len = text.length(); widths.Empty(); widths.Add(0, len); - int w, h; // reset the cache if font or horizontal scale have changed - if (!s_fontWidthCache.m_widths || - (s_fontWidthCache.m_scaleX != m_scaleX) || - (s_fontWidthCache.m_font != GetFont())) + if ( !s_fontWidthCache.m_widths || + !wxIsSameDouble(s_fontWidthCache.m_scaleX, m_scaleX) || + (s_fontWidthCache.m_font != GetFont()) ) { s_fontWidthCache.Reset(); s_fontWidthCache.m_font = GetFont(); @@ -420,7 +437,8 @@ bool wxDCBase::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) // Calculate the position of each character based on the widths of // the previous characters - for (i=0; i= xDelta) + { + x -= xDelta; + if (nR1 > nR2) + nR = nR1 - (nR1-nR2)*(w-x)/w; + else + nR = nR1 + (nR2-nR1)*(w-x)/w; + + if (nG1 > nG2) + nG = nG1 - (nG1-nG2)*(w-x)/w; + else + nG = nG1 + (nG2-nG1)*(w-x)/w; + + if (nB1 > nB2) + nB = nB1 - (nB1-nB2)*(w-x)/w; + else + nB = nB1 + (nB2-nB1)*(w-x)/w; + + SetPen(wxPen(wxColour(nR, nG, nB), 1, wxSOLID)); + if(nDirection == wxEAST) + DrawRectangle(rect.GetLeft()+x, rect.GetTop(), + xDelta, rect.GetHeight()); + else //nDirection == wxWEST + DrawRectangle(rect.GetRight()-x-xDelta, rect.GetTop(), + xDelta, rect.GetHeight()); + } + } + else // nDirection == wxNORTH || nDirection == wxSOUTH + { + wxInt32 y = rect.GetHeight(); + wxInt32 w = y; // height of area to shade + wxInt32 yDelta = w/255; // height of one shade bend + if (yDelta < 1) + yDelta = 1; + + while (y > 0) + { + y -= yDelta; + if (nR1 > nR2) + nR = nR1 - (nR1-nR2)*(w-y)/w; + else + nR = nR1 + (nR2-nR1)*(w-y)/w; + + if (nG1 > nG2) + nG = nG1 - (nG1-nG2)*(w-y)/w; + else + nG = nG1 + (nG2-nG1)*(w-y)/w; + + if (nB1 > nB2) + nB = nB1 - (nB1-nB2)*(w-y)/w; + else + nB = nB1 + (nB2-nB1)*(w-y)/w; + + SetPen(wxPen(wxColour(nR, nG, nB), 1, wxSOLID)); + if(nDirection == wxNORTH) + DrawRectangle(rect.GetLeft(), rect.GetTop()+y, + rect.GetWidth(), yDelta); + else //nDirection == wxSOUTH + DrawRectangle(rect.GetLeft(), rect.GetBottom()-y-yDelta, + rect.GetWidth(), yDelta); + } + } + + SetPen(oldPen); +} + +void wxDCBase::DoGradientFillConcentric(const wxRect& rect, + const wxColour& initialColour, + const wxColour& destColour, + const wxPoint& circleCenter) +{ + //save the old pen color + wxColour oldPenColour = m_pen.GetColour(); + + wxUint8 nR1 = destColour.Red(); + wxUint8 nG1 = destColour.Green(); + wxUint8 nB1 = destColour.Blue(); + wxUint8 nR2 = initialColour.Red(); + wxUint8 nG2 = initialColour.Green(); + wxUint8 nB2 = initialColour.Blue(); + wxUint8 nR, nG, nB; + + + //Radius + wxInt32 cx = rect.GetWidth() / 2; + wxInt32 cy = rect.GetHeight() / 2; + wxInt32 nRadius; + if (cx < cy) + nRadius = cx; + else + nRadius = cy; + + //Offset of circle + wxInt32 nCircleOffX = circleCenter.x - (rect.GetWidth() / 2); + wxInt32 nCircleOffY = circleCenter.y - (rect.GetHeight() / 2); + + for ( wxInt32 x = 0; x < rect.GetWidth(); x++ ) + { + for ( wxInt32 y = 0; y < rect.GetHeight(); y++ ) + { + //get color difference + wxInt32 nGradient = ((nRadius - + (wxInt32)sqrt( + pow((double)(x - cx - nCircleOffX), 2) + + pow((double)(y - cy - nCircleOffY), 2) + )) * 100) / nRadius; + + //normalize Gradient + if (nGradient < 0 ) + nGradient = 0; + + //get dest colors + nR = (wxUint8)(nR1 + ((nR2 - nR1) * nGradient / 100)); + nG = (wxUint8)(nG1 + ((nG2 - nG1) * nGradient / 100)); + nB = (wxUint8)(nB1 + ((nB2 - nB1) * nGradient / 100)); + + //set the pixel + m_pen.SetColour(wxColour(nR,nG,nB)); + DrawPoint(wxPoint(x + rect.GetLeft(), y + rect.GetTop())); + } + } + //return old pen color + m_pen.SetColour(oldPenColour); +} + /* Notes for wxWidgets DrawEllipticArcRot(...) @@ -726,13 +894,13 @@ void wxDCBase::DoDrawEllipticArcRot( wxCoord x, wxCoord y, list.Append( (wxObject*) new wxPoint( x+w/2, y+h/2 ) ); // copy list into array and delete list elements - int n = list.Number(); + int n = list.GetCount(); wxPoint *points = new wxPoint[n]; int i = 0; wxNode* node = 0; - for ( node = list.First(); node; node = node->Next(), i++ ) + for ( node = list.GetFirst(); node; node = node->GetNext(), i++ ) { - wxPoint *point = (wxPoint *)node->Data(); + wxPoint *point = (wxPoint *)node->GetData(); points[i].x = point->x; points[i].y = point->y; delete point; @@ -762,12 +930,12 @@ void wxDCBase::Rotate( wxList* points, double angle, wxPoint center ) { if( angle != 0.0 ) { - double pi(3.1415926536); + double pi(M_PI); double dSinA = -sin(angle*2.0*pi/360.0); double dCosA = cos(angle*2.0*pi/360.0); - for ( wxNode* node = points->First(); node; node = node->Next() ) + for ( wxNode* node = points->GetFirst(); node; node = node->GetNext() ) { - wxPoint* point = (wxPoint*)node->Data(); + wxPoint* point = (wxPoint*)node->GetData(); // transform coordinates, if necessary if( center.x ) point->x -= center.x; @@ -790,7 +958,7 @@ void wxDCBase::CalculateEllipticPoints( wxList* points, wxCoord w, wxCoord h, double sa, double ea ) { - double pi = 3.1415926535; + double pi = M_PI; double sar = 0; double ear = 0; int xsa = 0; @@ -903,14 +1071,14 @@ void wxDCBase::CalculateEllipticPoints( wxList* points, bool bForceTurn = ( sq == eq && sa > ea ); while( !bReady ) { - for( wxNode *node = pointsarray[q].First(); node; node = node->Next() ) + for( wxNode *node = pointsarray[q].GetFirst(); node; node = node->GetNext() ) { // once: go to starting point in start quadrant if( !bStarted && ( - ( (wxPoint*) node->Data() )->x < xsa+1 && q <= 1 + ( (wxPoint*) node->GetData() )->x < xsa+1 && q <= 1 || - ( (wxPoint*) node->Data() )->x > xsa-1 && q >= 2 + ( (wxPoint*) node->GetData() )->x > xsa-1 && q >= 2 ) ) { @@ -922,16 +1090,16 @@ void wxDCBase::CalculateEllipticPoints( wxList* points, { if( q != eq || bForceTurn || - ( (wxPoint*) node->Data() )->x > xea+1 && q <= 1 + ( (wxPoint*) node->GetData() )->x > xea+1 && q <= 1 || - ( (wxPoint*) node->Data() )->x < xea-1 && q >= 2 + ( (wxPoint*) node->GetData() )->x < xea-1 && q >= 2 ) { // copy point - wxPoint* pPoint = new wxPoint( *((wxPoint*) node->Data() ) ); + wxPoint* pPoint = new wxPoint( *((wxPoint*) node->GetData() ) ); points->Append( (wxObject*) pPoint ); } - else if( q == eq && !bForceTurn || ( (wxPoint*) node->Data() )->x == xea) + else if( q == eq && !bForceTurn || ( (wxPoint*) node->GetData() )->x == xea) { bReady = true; } @@ -947,34 +1115,35 @@ void wxDCBase::CalculateEllipticPoints( wxList* points, // delete points for( q = 0; q < 4; ++q ) { - for( wxNode *node = pointsarray[q].First(); node; node = node->Next() ) + for( wxNode *node = pointsarray[q].GetFirst(); node; node = node->GetNext() ) { - wxPoint *p = (wxPoint *)node->Data(); + wxPoint *p = (wxPoint *)node->GetData(); delete p; } } } else { + wxNode* node; // copy whole ellipse, wxPoints will be deleted outside - for( wxNode *node = pointsarray[0].First(); node; node = node->Next() ) + for( node = pointsarray[0].GetFirst(); node; node = node->GetNext() ) { - wxObject *p = node->Data(); + wxObject *p = node->GetData(); points->Append( p ); } - for( node = pointsarray[1].First(); node; node = node->Next() ) + for( node = pointsarray[1].GetFirst(); node; node = node->GetNext() ) { - wxObject *p = node->Data(); + wxObject *p = node->GetData(); points->Append( p ); } - for( node = pointsarray[2].First(); node; node = node->Next() ) + for( node = pointsarray[2].GetFirst(); node; node = node->GetNext() ) { - wxObject *p = node->Data(); + wxObject *p = node->GetData(); points->Append( p ); } - for( node = pointsarray[3].First(); node; node = node->Next() ) + for( node = pointsarray[3].GetFirst(); node; node = node->GetNext() ) { - wxObject *p = node->Data(); + wxObject *p = node->GetData(); points->Append( p ); } } // not iUseAngles @@ -982,3 +1151,358 @@ void wxDCBase::CalculateEllipticPoints( wxList* points, #endif +// +// temporary home for wxOverlay +// + +#include "wx/dcclient.h" +#include "wx/dcmemory.h" + +#if defined(wxMAC_USE_CORE_GRAPHICS) && wxMAC_USE_CORE_GRAPHICS + +#include "wx/mac/private.h" +#include "wx/toplevel.h" + +class wxOverlayImpl +{ +public: + wxOverlayImpl() ; + ~wxOverlayImpl() ; + + + // clears the overlay without restoring the former state + // to be done eg when the window content has been changed and repainted + void Reset(); + + // returns true if it has been setup + bool IsOk(); + + void Init( wxWindowDC* dc, int x , int y , int width , int height ); + + void BeginDrawing( wxWindowDC* dc); + + void EndDrawing( wxWindowDC* dc); + + void Clear( wxWindowDC* dc); + +private: + OSStatus CreateOverlayWindow(); + + void MacGetBounds( Rect *bounds ); + + WindowRef m_overlayWindow; + WindowRef m_overlayParentWindow; + CGContextRef m_overlayContext ; + // we store the window in case we would have to issue a Refresh() + wxWindow* m_window ; + + int m_x ; + int m_y ; + int m_width ; + int m_height ; +} ; + +wxOverlayImpl::wxOverlayImpl() +{ + m_window = NULL ; + m_overlayContext = NULL ; + m_overlayWindow = NULL ; +} + +wxOverlayImpl::~wxOverlayImpl() +{ + Reset(); +} + +bool wxOverlayImpl::IsOk() +{ + return m_overlayWindow != NULL ; +} + +void wxOverlayImpl::MacGetBounds( Rect *bounds ) +{ + wxPoint origin(0,0); + origin = m_window->ClientToScreen( origin ); + bounds->top = origin.y; + bounds->left = origin.x; + bounds->bottom = origin.y+m_y+m_height; + bounds->right = origin.x+m_x+m_width; +} + +OSStatus wxOverlayImpl::CreateOverlayWindow() +{ + OSStatus err; + + WindowAttributes overlayAttributes = kWindowIgnoreClicksAttribute; + + m_overlayParentWindow =(WindowRef) m_window->MacGetTopLevelWindowRef(); + + Rect bounds ; + MacGetBounds(&bounds); + err = CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, &m_overlayWindow ); + if ( err == noErr ) + { + SetWindowGroup( m_overlayWindow, GetWindowGroup(m_overlayParentWindow)); // Put them in the same group so that their window layers are consistent + ShowWindow(m_overlayWindow); + } + return err; +} + +void wxOverlayImpl::Init( wxWindowDC* dc, int x , int y , int width , int height ) +{ + wxASSERT_MSG( !IsOk() , _("You cannot Init an overlay twice") ); + + m_window = dc->GetWindow(); + m_x = x ; + m_y = y ; + m_width = width ; + m_height = height ; + + OSStatus err = CreateOverlayWindow(); + wxASSERT_MSG( err == noErr , _("Couldn't create the overlay window") ); +#ifndef __LP64__ + err = QDBeginCGContext(GetWindowPort(m_overlayWindow), &m_overlayContext); +#endif + CGContextTranslateCTM( m_overlayContext, 0, m_height+m_y ); + CGContextScaleCTM( m_overlayContext, 1, -1 ); + wxASSERT_MSG( err == noErr , _("Couldn't init the context on the overlay window") ); +} + +void wxOverlayImpl::BeginDrawing( wxWindowDC* dc) +{ + delete dc->m_graphicContext ; + dc->m_graphicContext = new wxMacCGContext( m_overlayContext ); + // we are right now startin at 0,0 not at the wxWindow's origin, so most of the calculations + // int dc are already corect + // just to make sure : + dc->m_macLocalOrigin.x = 0 ; + dc->m_macLocalOrigin.y = 0 ; + wxSize size = m_window->GetSize() ; + dc->SetClippingRegion( 0 , 0 , size.x , size.y ) ; +} + +void wxOverlayImpl::EndDrawing( wxWindowDC* dc) +{ + delete dc->m_graphicContext ; + dc->m_graphicContext = NULL ; + +} + +void wxOverlayImpl::Clear(wxWindowDC* dc) +{ + wxASSERT_MSG( IsOk() , _("You cannot Clear an overlay that is not inited") ); + CGRect box = CGRectMake( m_x - 1, m_y - 1 , m_width + 2 , m_height + 2 ); + CGContextClearRect( m_overlayContext, box ); +} + +void wxOverlayImpl::Reset() +{ + if ( m_overlayContext ) + { +#ifndef __LP64__ + OSStatus err = QDEndCGContext(GetWindowPort(m_overlayWindow), &m_overlayContext); + wxASSERT_MSG( err == noErr , _("Couldn't end the context on the overlay window") ); +#endif + m_overlayContext = NULL ; + } + + // todo : don't dispose, only hide and reposition on next run + if (m_overlayWindow) + { + DisposeWindow(m_overlayWindow); + m_overlayWindow = NULL ; + } +} + +// +// +// + +#else // ie not wxMAC_USE_CORE_GRAPHICS + +class wxOverlayImpl +{ +public: + wxOverlayImpl() ; + ~wxOverlayImpl() ; + + + // clears the overlay without restoring the former state + // to be done eg when the window content has been changed and repainted + void Reset(); + + // returns true if it has been setup + bool IsOk(); + + void Init( wxWindowDC* dc, int x , int y , int width , int height ); + + void BeginDrawing( wxWindowDC* dc); + + void EndDrawing( wxWindowDC* dc); + + void Clear( wxWindowDC* dc); + +private: + wxBitmap m_bmpSaved ; + int m_x ; + int m_y ; + int m_width ; + int m_height ; +// this is to enable wxMOTIF and UNIV to compile.... +// currently (10 oct 06) we don't use m_window +// ce - how do we fix this +#if defined(__WXGTK__) || defined(__WXMSW__) +// + wxWindow* m_window ; +#endif +} ; + +wxOverlayImpl::wxOverlayImpl() +{ +#if defined(__WXGTK__) || defined(__WXMSW__) + m_window = NULL ; +#endif + m_x = m_y = m_width = m_height = 0 ; +} + +wxOverlayImpl::~wxOverlayImpl() +{ +} + +bool wxOverlayImpl::IsOk() +{ + return m_bmpSaved.Ok() ; +} + +void wxOverlayImpl::Init( wxWindowDC* dc, int x , int y , int width , int height ) +{ +#if defined(__WXGTK__) + m_window = dc->m_owner; +#else + #if defined (__WXMSW__) + m_window = dc->GetWindow(); + #endif // __WXMSW__ + +#endif + wxMemoryDC dcMem ; + m_bmpSaved.Create( width, height ); + dcMem.SelectObject( m_bmpSaved ); + m_x = x ; + m_y = y ; + m_width = width ; + m_height = height ; +#if defined(__WXGTK__) && !defined(__WX_DC_BLIT_FIXED__) + wxPoint pt = dc->GetDeviceOrigin(); + x += pt.x; + y += pt.y; +#endif // broken wxGTK wxDC::Blit + dcMem.Blit(0, 0, m_width, m_height, + dc, x, y); + dcMem.SelectObject( wxNullBitmap ); +} + +void wxOverlayImpl::Clear(wxWindowDC* dc) +{ + wxMemoryDC dcMem ; + dcMem.SelectObject( m_bmpSaved ); + dc->Blit( m_x, m_y, m_width, m_height , &dcMem , 0 , 0 ); + dcMem.SelectObject( wxNullBitmap ); +} + +void wxOverlayImpl::Reset() +{ + m_bmpSaved = wxBitmap(); +} + +void wxOverlayImpl::BeginDrawing(wxWindowDC* WXUNUSED(dc)) +{ +} + +void wxOverlayImpl::EndDrawing(wxWindowDC* WXUNUSED(dc)) +{ +} + +#endif + +// common code + +wxOverlay::wxOverlay() +{ + m_impl = new wxOverlayImpl(); + m_inDrawing = false; +} + +wxOverlay::~wxOverlay() +{ + wxDELETE( m_impl ); +} + +bool wxOverlay::IsOk() +{ + return m_impl->IsOk(); +} + +void wxOverlay::Init( wxWindowDC* dc, int x , int y , int width , int height ) +{ + m_impl->Init(dc, x, y, width, height); +} + +void wxOverlay::BeginDrawing( wxWindowDC* dc) +{ + m_impl->BeginDrawing(dc); + m_inDrawing = true ; +} + +void wxOverlay::EndDrawing( wxWindowDC* dc) +{ + m_impl->EndDrawing(dc); + m_inDrawing = false ; +} + +void wxOverlay::Clear( wxWindowDC* dc) +{ + m_impl->Clear(dc); +} + +void wxOverlay::Reset() +{ + wxASSERT_MSG(m_inDrawing==false,wxT("cannot reset overlay during drawing")); + m_impl->Reset(); +} + +// dc connector + +wxDCOverlay::wxDCOverlay(wxOverlay &overlay, wxWindowDC *dc, int x , int y , int width , int height) : + m_overlay(overlay) +{ + Init(dc, x, y, width, height); +} + +wxDCOverlay::wxDCOverlay(wxOverlay &overlay, wxWindowDC *dc) : + m_overlay(overlay) +{ + int width; + int height; + dc->GetSize(&width,&height); + Init(dc, 0, 0, width, height); +} + +wxDCOverlay::~wxDCOverlay() +{ + m_overlay.EndDrawing(m_dc); +} + +void wxDCOverlay::Init(wxWindowDC *dc, int x , int y , int width , int height ) +{ + m_dc = dc ; + if ( !m_overlay.IsOk() ) + { + m_overlay.Init(dc,x,y,width,height); + } + m_overlay.BeginDrawing(dc); +} + +void wxDCOverlay::Clear() +{ + m_overlay.Clear(m_dc); +}