// 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
// ----------------------------------------------------------------------------
#endif
#include "wx/dc.h"
+#include "wx/math.h"
-#include <math.h>
-
-// bool wxDCBase::sm_cacheing = FALSE;
+// bool wxDCBase::sm_cacheing = false;
// ============================================================================
// implementation
// ============================================================================
+#if WXWIN_COMPATIBILITY_2_6
+void wxDCBase::BeginDrawing()
+{
+}
+
+void wxDCBase::EndDrawing()
+{
+}
+#endif // WXWIN_COMPATIBILITY_2_6
+
// ----------------------------------------------------------------------------
// special symbols
// ----------------------------------------------------------------------------
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)
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;
// 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
{
{
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();
// Calculate the position of each character based on the widths of
// the previous characters
- for (i=0; i<len; i++)
+ int w, h;
+ for ( size_t i = 0; i < len; i++ )
{
const wxChar c = text[i];
unsigned int c_int = (unsigned int)c;
width0 = width;
if ( bitmap.Ok() )
{
- DrawBitmap(bitmap, x, y, TRUE /* use mask */);
+ DrawBitmap(bitmap, x, y, true /* use mask */);
wxCoord offset = bitmap.GetWidth() + 4;
x += offset;
CalcBoundingBox(x0 + width0, y0 + height);
}
+
+void wxDCBase::DoGradientFillLinear(const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour,
+ wxDirection nDirection)
+{
+ // save old pen
+ wxPen oldPen = m_pen;
+
+ 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;
+
+ if ( nDirection == wxEAST || nDirection == wxWEST )
+ {
+ wxInt32 x = rect.GetWidth();
+ wxInt32 w = x; // width of area to shade
+ wxInt32 xDelta = w/256; // height of one shade bend
+ if (xDelta < 1)
+ xDelta = 1;
+
+ while (x >= 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::GradientFillConcentric(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 = nR1 + ((nR2 - nR1) * nGradient / 100);
+ nG = nG1 + ((nG2 - nG1) * nGradient / 100);
+ nB = 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(...)
{
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() )
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;
projects / wxWidgets.git / blobdiff