X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7825e3217173eac7366a2b9bffc39f8d22603536..64ea838d8f4d1853b7d850db93ee565e901d099a:/src/common/dcbase.cpp diff --git a/src/common/dcbase.cpp b/src/common/dcbase.cpp index df11b95eea..46a163129c 100644 --- a/src/common/dcbase.cpp +++ b/src/common/dcbase.cpp @@ -35,15 +35,20 @@ #ifndef WX_PRECOMP #include "wx/math.h" #include "wx/module.h" + #include "wx/window.h" #endif +#include "wx/private/textmeasure.h" + #ifdef __WXMSW__ #include "wx/msw/dcclient.h" #include "wx/msw/dcmemory.h" #include "wx/msw/dcscreen.h" #endif -#ifdef __WXGTK20__ +#ifdef __WXGTK3__ + #include "wx/gtk/dc.h" +#elif defined __WXGTK20__ #include "wx/gtk/dcclient.h" #include "wx/gtk/dcmemory.h" #include "wx/gtk/dcscreen.h" @@ -89,12 +94,6 @@ #include "wx/dfb/dcscreen.h" #endif -#ifdef __WXPALMOS__ - #include "wx/palmos/dcclient.h" - #include "wx/palmos/dcmemory.h" - #include "wx/palmos/dcscreen.h" -#endif - //---------------------------------------------------------------------------- // wxDCFactory //---------------------------------------------------------------------------- @@ -370,6 +369,30 @@ wxDCImpl::~wxDCImpl() { } +// ---------------------------------------------------------------------------- +// clipping +// ---------------------------------------------------------------------------- + +void wxDCImpl::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h) +{ + if ( m_clipping ) + { + m_clipX1 = wxMax( m_clipX1, x ); + m_clipY1 = wxMax( m_clipY1, y ); + m_clipX2 = wxMin( m_clipX2, (x + w) ); + m_clipY2 = wxMin( m_clipY2, (y + h) ); + } + else + { + m_clipping = true; + + m_clipX1 = x; + m_clipY1 = y; + m_clipX2 = x + w; + m_clipY2 = y + h; + } +} + // ---------------------------------------------------------------------------- // coordinate conversions and transforms // ---------------------------------------------------------------------------- @@ -490,78 +513,10 @@ void wxDCImpl::SetAxisOrientation( bool xLeftRight, bool yBottomUp ) ComputeScaleAndOrigin(); } - -// Each element of the widths array will be the width of the string up to and -// 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 256 - -class FontWidthCache -{ -public: - FontWidthCache() : m_scaleX(1), m_widths(NULL) { } - ~FontWidthCache() { delete []m_widths; } - - void Reset() - { - if (!m_widths) - m_widths = new int[FWC_SIZE]; - - memset(m_widths, 0, sizeof(int)*FWC_SIZE); - } - - wxFont m_font; - double m_scaleX; - int *m_widths; -}; - -static FontWidthCache s_fontWidthCache; - bool wxDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const { - int totalWidth = 0; - - const size_t len = text.length(); - widths.Empty(); - widths.Add(0, len); - - // reset the cache if font or horizontal scale have changed - 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(); - s_fontWidthCache.m_scaleX = m_scaleX; - } - - // Calculate the position of each character based on the widths of - // the previous characters - int w, h; - for ( size_t i = 0; i < len; i++ ) - { - const wxChar c = text[i]; - unsigned int c_int = (unsigned int)c; - - if ((c_int < FWC_SIZE) && (s_fontWidthCache.m_widths[c_int] != 0)) - { - w = s_fontWidthCache.m_widths[c_int]; - } - else - { - DoGetTextExtent(c, &w, &h); - if (c_int < FWC_SIZE) - s_fontWidthCache.m_widths[c_int] = w; - } - - totalWidth += w; - widths[i] = totalWidth; - } - - return true; + wxTextMeasure tm(GetOwner(), &m_font); + return tm.GetPartialTextExtents(text, widths, m_scaleX); } void wxDCImpl::GetMultiLineTextExtent(const wxString& text, @@ -570,64 +525,8 @@ void wxDCImpl::GetMultiLineTextExtent(const wxString& text, wxCoord *h, const wxFont *font) const { - wxCoord widthTextMax = 0, widthLine, - heightTextTotal = 0, heightLineDefault = 0, heightLine = 0; - - wxString curLine; - for ( wxString::const_iterator pc = text.begin(); ; ++pc ) - { - if ( pc == text.end() || *pc == wxT('\n') ) - { - if ( curLine.empty() ) - { - // we can't use GetTextExtent - it will return 0 for both width - // and height and an empty line should count in height - // calculation - - // assume that this line has the same height as the previous - // one - if ( !heightLineDefault ) - heightLineDefault = heightLine; - - if ( !heightLineDefault ) - { - // but we don't know it yet - choose something reasonable - DoGetTextExtent(wxT("W"), NULL, &heightLineDefault, - NULL, NULL, font); - } - - heightTextTotal += heightLineDefault; - } - else - { - DoGetTextExtent(curLine, &widthLine, &heightLine, - NULL, NULL, font); - if ( widthLine > widthTextMax ) - widthTextMax = widthLine; - heightTextTotal += heightLine; - } - - if ( pc == text.end() ) - { - break; - } - else // '\n' - { - curLine.clear(); - } - } - else - { - curLine += *pc; - } - } - - if ( x ) - *x = widthTextMax; - if ( y ) - *y = heightTextTotal; - if ( h ) - *h = heightLine; + wxTextMeasure tm(GetOwner(), font && font->IsOk() ? font : &m_font); + tm.GetMultiLineTextExtent(text, x, y, h); } void wxDCImpl::DoDrawCheckMark(wxCoord x1, wxCoord y1, @@ -927,9 +826,9 @@ void wxDCImpl::DoDrawSpline( const wxPointList *points ) wx_spline_add_point(x1, y1); while ((node = node->GetNext()) -#if !wxUSE_STL +#if !wxUSE_STD_CONTAINERS != NULL -#endif // !wxUSE_STL +#endif // !wxUSE_STD_CONTAINERS ) { p = node->GetData(); @@ -1075,37 +974,46 @@ void wxDCImpl::DoGradientFillConcentric(const wxRect& rect, //Radius - wxInt32 cx = rect.GetWidth() / 2; - wxInt32 cy = rect.GetHeight() / 2; - wxInt32 nRadius; + double cx = rect.GetWidth() / 2; + double cy = rect.GetHeight() / 2; + double dRadius; if (cx < cy) - nRadius = cx; + dRadius = cx; else - nRadius = cy; + dRadius = cy; //Offset of circle - wxInt32 nCircleOffX = circleCenter.x - (rect.GetWidth() / 2); - wxInt32 nCircleOffY = circleCenter.y - (rect.GetHeight() / 2); + double ptX, ptY; + ptX = circleCenter.x; + ptY = circleCenter.y; + double nCircleOffX = ptX - cx; + double nCircleOffY = ptY - cy; + + double dGradient; + double dx, dy; 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; + dx = x; + dy = y; + + dGradient = ((dRadius - sqrt( (dx - cx - nCircleOffX) * (dx - cx - nCircleOffX) + +(dy - cy - nCircleOffY) * (dy - cy - nCircleOffY) + ) + ) * 100 + ) / dRadius; //normalize Gradient - if (nGradient < 0 ) - nGradient = 0; + if (dGradient < 0) + dGradient = 0.0; //get dest colors - nR = (wxUint8)(nR1 + ((nR2 - nR1) * nGradient / 100)); - nG = (wxUint8)(nG1 + ((nG2 - nG1) * nGradient / 100)); - nB = (wxUint8)(nB1 + ((nB2 - nB1) * nGradient / 100)); + nR = (wxUint8)(nR1 + ((nR2 - nR1) * dGradient / 100)); + nG = (wxUint8)(nG1 + ((nG2 - nG1) * dGradient / 100)); + nB = (wxUint8)(nB1 + ((nB2 - nB1) * dGradient / 100)); //set the pixel SetPen(wxColour(nR,nG,nB)); @@ -1125,6 +1033,27 @@ void wxDCImpl::InheritAttributes(wxWindow *win) SetLayoutDirection(win->GetLayoutDirection()); } +void wxDCImpl::DoGetFontMetrics(int *height, + int *ascent, + int *descent, + int *internalLeading, + int *externalLeading, + int *averageWidth) const +{ + // Average width is typically the same as width of 'x'. + wxCoord h, d; + DoGetTextExtent("x", averageWidth, &h, &d, externalLeading); + + if ( height ) + *height = h; + if ( ascent ) + *ascent = h - d; + if ( descent ) + *descent = d; + if ( internalLeading ) + *internalLeading = 0; +} + //----------------------------------------------------------------------------- // wxDC //----------------------------------------------------------------------------- @@ -1152,7 +1081,7 @@ void wxDC::DrawLabel(const wxString& text, GetMultiLineTextExtent(text, &widthText, &heightText, &heightLine); wxCoord width, height; - if ( bitmap.Ok() ) + if ( bitmap.IsOk() ) { width = widthText + bitmap.GetWidth(); height = bitmap.GetHeight(); @@ -1194,7 +1123,7 @@ void wxDC::DrawLabel(const wxString& text, wxCoord x0 = x, y0 = y, width0 = width; - if ( bitmap.Ok() ) + if ( bitmap.IsOk() ) { DrawBitmap(bitmap, x, y, true /* use mask */); @@ -1267,7 +1196,7 @@ void wxDC::DrawLabel(const wxString& text, { if ( pc - text.begin() == indexAccel ) { - // remeber to draw underscore here + // remember to draw underscore here GetTextExtent(curLine, &startUnderscore, NULL); curLine += *pc; GetTextExtent(curLine, &endUnderscore, NULL); @@ -1287,7 +1216,14 @@ void wxDC::DrawLabel(const wxString& text, // it should be of the same colour as text SetPen(wxPen(GetTextForeground(), 0, wxPENSTYLE_SOLID)); - yUnderscore--; + // This adjustment is relatively arbitrary: we need to draw the + // underline slightly higher to avoid overflowing the character cell + // but whether we should do it 1, 2 or 3 pixels higher is not clear. + // + // The currently used value seems to be compatible with native MSW + // behaviour, i.e. it results in the same appearance of the owner-drawn + // and normal labels. + yUnderscore -= 2; DrawLine(startUnderscore, yUnderscore, endUnderscore, yUnderscore); } @@ -1565,7 +1501,7 @@ void wxDCImpl::CalculateEllipticPoints( wxPointList* points, y2 = y2-y-y+1; --y; } - // old y now to big: set point with old y, old x + // old y now too big: set point with old y, old x if( bNewPoint && x>1) { int x1 = x - 1;