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wxWidgets/src/mac/dcclient.cpp
Stefan Csomor e9576ca53d started once again from stubs 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1296 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1999-01-01 15:56:08 +00:00

636 lines
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/////////////////////////////////////////////////////////////////////////////
// Name: dcclient.cpp
// Purpose: wxClientDC class
// Author: AUTHOR
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c) AUTHOR
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "dcclient.h"
#endif
#include "wx/dcclient.h"
#include "wx/dcmemory.h"
#include "wx/region.h"
#include <math.h>
//-----------------------------------------------------------------------------
// constants
//-----------------------------------------------------------------------------
#define RAD2DEG 57.2957795131
//-----------------------------------------------------------------------------
// wxPaintDC
//-----------------------------------------------------------------------------
#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC)
IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxWindowDC)
#endif
/*
* wxWindowDC
*/
wxWindowDC::wxWindowDC(void)
{
};
wxWindowDC::wxWindowDC( wxWindow *window )
{
};
wxWindowDC::~wxWindowDC(void)
{
};
void wxWindowDC::FloodFill( long WXUNUSED(x1), long WXUNUSED(y1),
const wxColour& WXUNUSED(col), int WXUNUSED(style) )
{
};
bool wxWindowDC::GetPixel( long WXUNUSED(x1), long WXUNUSED(y1), wxColour *WXUNUSED(col) ) const
{
return FALSE;
};
void wxWindowDC::DrawLine( long x1, long y1, long x2, long y2 )
{
if (!Ok()) return;
};
void wxWindowDC::CrossHair( long x, long y )
{
if (!Ok()) return;
};
void wxWindowDC::DrawArc( long x1, long y1, long x2, long y2, long xc, long yc )
{
if (!Ok()) return;
long xx1 = XLOG2DEV(x1);
long yy1 = YLOG2DEV(y1);
long xx2 = XLOG2DEV(x2);
long yy2 = YLOG2DEV(y2);
long xxc = XLOG2DEV((long)xc);
long yyc = YLOG2DEV((long)yc);
double dx = xx1 - xxc;
double dy = yy1 - yyc;
double radius = sqrt(dx*dx+dy*dy);
long r = (long)radius;
double radius1, radius2;
if (xx1 == xx2 && yy1 == yy2)
{
radius1 = 0.0;
radius2 = 360.0;
}
else
if (radius == 0.0)
{
radius1 = radius2 = 0.0;
}
else
{
radius1 = (xx1 - xxc == 0) ?
(yy1 - yyc < 0) ? 90.0 : -90.0 :
-atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG;
radius2 = (xx2 - xxc == 0) ?
(yy2 - yyc < 0) ? 90.0 : -90.0 :
-atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG;
};
long alpha1 = long(radius1 * 64.0);
long alpha2 = long((radius2 - radius1) * 64.0);
while (alpha2 <= 0) alpha2 += 360*64;
while (alpha1 > 360*64) alpha1 -= 360*64;
if (m_brush.GetStyle() != wxTRANSPARENT) {};
if (m_pen.GetStyle() != wxTRANSPARENT) {};
};
void wxWindowDC::DrawEllipticArc( long x, long y, long width, long height, double sa, double ea )
{
if (!Ok()) return;
long xx = XLOG2DEV(x);
long yy = YLOG2DEV(y);
long ww = m_signX * XLOG2DEVREL(width);
long hh = m_signY * YLOG2DEVREL(height);
// CMB: handle -ve width and/or height
if (ww < 0) { ww = -ww; xx = xx - ww; }
if (hh < 0) { hh = -hh; yy = yy - hh; }
long start = long(sa * 64.0);
long end = long(ea * 64.0);
if (m_brush.GetStyle() != wxTRANSPARENT) {};
if (m_pen.GetStyle() != wxTRANSPARENT) {};
};
void wxWindowDC::DrawPoint( long x, long y )
{
if (!Ok()) return;
if (m_pen.GetStyle() != wxTRANSPARENT) {};
};
void wxWindowDC::DrawLines( int n, wxPoint points[], long xoffset, long yoffset )
{
if (!Ok()) return;
if (m_pen.GetStyle() == wxTRANSPARENT) return;
for (int i = 0; i < n-1; i++)
{
long x1 = XLOG2DEV(points[i].x + xoffset);
long x2 = XLOG2DEV(points[i+1].x + xoffset);
long y1 = YLOG2DEV(points[i].y + yoffset); // oh, what a waste
long y2 = YLOG2DEV(points[i+1].y + yoffset);
};
};
void wxWindowDC::DrawLines( wxList *points, long xoffset, long yoffset )
{
if (!Ok()) return;
if (m_pen.GetStyle() == wxTRANSPARENT) return;
wxNode *node = points->First();
while (node->Next())
{
wxPoint *point = (wxPoint*)node->Data();
wxPoint *npoint = (wxPoint*)node->Next()->Data();
long x1 = XLOG2DEV(point->x + xoffset);
long x2 = XLOG2DEV(npoint->x + xoffset);
long y1 = YLOG2DEV(point->y + yoffset); // and again...
long y2 = YLOG2DEV(npoint->y + yoffset);
node = node->Next();
};
};
void wxWindowDC::DrawPolygon( int WXUNUSED(n), wxPoint WXUNUSED(points)[],
long WXUNUSED(xoffset), long WXUNUSED(yoffset), int WXUNUSED(fillStyle) )
{
if (!Ok()) return;
};
void wxWindowDC::DrawPolygon( wxList *WXUNUSED(lines), long WXUNUSED(xoffset),
long WXUNUSED(yoffset), int WXUNUSED(fillStyle) )
{
if (!Ok()) return;
};
void wxWindowDC::DrawRectangle( long x, long y, long width, long height )
{
if (!Ok()) return;
long xx = XLOG2DEV(x);
long yy = YLOG2DEV(y);
long ww = m_signX * XLOG2DEVREL(width);
long hh = m_signY * YLOG2DEVREL(height);
// CMB: draw nothing if transformed w or h is 0
if (ww == 0 || hh == 0) return;
// CMB: handle -ve width and/or height
if (ww < 0) { ww = -ww; xx = xx - ww; }
if (hh < 0) { hh = -hh; yy = yy - hh; }
if (m_brush.GetStyle() != wxTRANSPARENT) {};
if (m_pen.GetStyle() != wxTRANSPARENT) {};
};
void wxWindowDC::DrawRoundedRectangle( long x, long y, long width, long height, double radius )
{
if (!Ok()) return;
if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
long xx = XLOG2DEV(x);
long yy = YLOG2DEV(y);
long ww = m_signX * XLOG2DEVREL(width);
long hh = m_signY * YLOG2DEVREL(height);
long rr = XLOG2DEVREL((long)radius);
// CMB: handle -ve width and/or height
if (ww < 0) { ww = -ww; xx = xx - ww; }
if (hh < 0) { hh = -hh; yy = yy - hh; }
// CMB: if radius is zero use DrawRectangle() instead to avoid
// X drawing errors with small radii
if (rr == 0)
{
DrawRectangle( x, y, width, height );
return;
}
// CMB: draw nothing if transformed w or h is 0
if (ww == 0 || hh == 0) return;
// CMB: adjust size if outline is drawn otherwise the result is
// 1 pixel too wide and high
if (m_pen.GetStyle() != wxTRANSPARENT)
{
ww--;
hh--;
}
// CMB: ensure dd is not larger than rectangle otherwise we
// get an hour glass shape
long dd = 2 * rr;
if (dd > ww) dd = ww;
if (dd > hh) dd = hh;
rr = dd / 2;
if (m_brush.GetStyle() != wxTRANSPARENT)
{
};
if (m_pen.GetStyle() != wxTRANSPARENT)
{
};
};
void wxWindowDC::DrawEllipse( long x, long y, long width, long height )
{
if (!Ok()) return;
long xx = XLOG2DEV(x);
long yy = YLOG2DEV(y);
long ww = m_signX * XLOG2DEVREL(width);
long hh = m_signY * YLOG2DEVREL(height);
// CMB: handle -ve width and/or height
if (ww < 0) { ww = -ww; xx = xx - ww; }
if (hh < 0) { hh = -hh; yy = yy - hh; }
if (m_brush.GetStyle() != wxTRANSPARENT) {};
if (m_pen.GetStyle() != wxTRANSPARENT) {};
};
bool wxWindowDC::CanDrawBitmap(void) const
{
return TRUE;
};
void wxWindowDC::DrawIcon( const wxIcon &icon, long x, long y, bool useMask )
{
if (!Ok()) return;
if (!icon.Ok()) return;
int xx = XLOG2DEV(x);
int yy = YLOG2DEV(y);
};
bool wxWindowDC::Blit( long xdest, long ydest, long width, long height,
wxDC *source, long xsrc, long ysrc, int WXUNUSED(logical_func), bool WXUNUSED(useMask) )
{
if (!Ok()) return FALSE;
// CMB 20/5/98: add blitting of bitmaps
if (source->IsKindOf(CLASSINFO(wxMemoryDC)))
{
wxMemoryDC* srcDC = (wxMemoryDC*)source;
/*
GdkBitmap* bmap = srcDC->m_selected.GetBitmap();
if (bmap)
{
gdk_draw_bitmap (
m_window,
m_textGC,
bmap,
source->DeviceToLogicalX(xsrc), source->DeviceToLogicalY(ysrc),
XLOG2DEV(xdest), YLOG2DEV(ydest),
source->DeviceToLogicalXRel(width), source->DeviceToLogicalYRel(height)
);
return TRUE;
}
*/
}
return TRUE;
};
void wxWindowDC::DrawText( const wxString &text, long x, long y, bool
WXUNUSED(use16) )
{
if (!Ok()) return;
};
bool wxWindowDC::CanGetTextExtent(void) const
{
return TRUE;
};
void wxWindowDC::GetTextExtent( const wxString &string, long *width, long *height,
long *WXUNUSED(descent), long *WXUNUSED(externalLeading),
wxFont *WXUNUSED(theFont), bool WXUNUSED(use16) )
{
if (!Ok()) return;
};
long wxWindowDC::GetCharWidth(void)
{
if (!Ok()) return 0;
return 0;
};
long wxWindowDC::GetCharHeight(void)
{
if (!Ok()) return 0;
return 0;
};
void wxWindowDC::Clear(void)
{
if (!Ok()) return;
};
void wxWindowDC::SetFont( const wxFont &font )
{
if (!Ok()) return;
m_font = font;
};
void wxWindowDC::SetPen( const wxPen &pen )
{
if (!Ok()) return;
if (m_pen == pen) return;
m_pen = pen;
if (!m_pen.Ok()) return;
};
void wxWindowDC::SetBrush( const wxBrush &brush )
{
if (!Ok()) return;
if (m_brush == brush) return;
m_brush = brush;
if (!m_brush.Ok()) return;
};
void wxWindowDC::SetBackground( const wxBrush &brush )
{
if (!Ok()) return;
if (m_backgroundBrush == brush) return;
m_backgroundBrush = brush;
if (!m_backgroundBrush.Ok()) return;
};
void wxWindowDC::SetLogicalFunction( int function )
{
if (m_logicalFunction == function) return;
};
void wxWindowDC::SetTextForeground( const wxColour &col )
{
if (!Ok()) return;
if (m_textForegroundColour == col) return;
m_textForegroundColour = col;
if (!m_textForegroundColour.Ok()) return;
};
void wxWindowDC::SetTextBackground( const wxColour &col )
{
if (!Ok()) return;
if (m_textBackgroundColour == col) return;
m_textBackgroundColour = col;
if (!m_textBackgroundColour.Ok()) return;
};
void wxWindowDC::SetBackgroundMode( int mode )
{
m_backgroundMode = mode;
if (m_brush.GetStyle() != wxSOLID && m_brush.GetStyle() != wxTRANSPARENT)
{
}
};
void wxWindowDC::SetPalette( const wxPalette& WXUNUSED(palette) )
{
};
void wxWindowDC::SetClippingRegion( long x, long y, long width, long height )
{
wxDC::SetClippingRegion( x, y, width, height );
// TODO
};
void wxWindowDC::SetClippingRegion( const wxRegion& region )
{
wxRect box = region.GetBox();
wxDC::SetClippingRegion( box.x, box.y, box.width, box.height );
// TODO
}
void wxWindowDC::DestroyClippingRegion(void)
{
wxDC::DestroyClippingRegion();
};
// ----------------------------------- spline code ----------------------------------------
void wx_quadratic_spline(double a1, double b1, double a2, double b2,
double a3, double b3, double a4, double b4);
void wx_clear_stack(void);
int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3,
double *y3, double *x4, double *y4);
void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3,
double x4, double y4);
static bool wx_spline_add_point(double x, double y);
static void wx_spline_draw_point_array(wxDC *dc);
wxList wx_spline_point_list;
#define half(z1, z2) ((z1+z2)/2.0)
#define THRESHOLD 5
/* iterative version */
void wx_quadratic_spline(double a1, double b1, double a2, double b2, double a3, double b3, double a4,
double b4)
{
register double xmid, ymid;
double x1, y1, x2, y2, x3, y3, x4, y4;
wx_clear_stack();
wx_spline_push(a1, b1, a2, b2, a3, b3, a4, b4);
while (wx_spline_pop(&x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4)) {
xmid = (double)half(x2, x3);
ymid = (double)half(y2, y3);
if (fabs(x1 - xmid) < THRESHOLD && fabs(y1 - ymid) < THRESHOLD &&
fabs(xmid - x4) < THRESHOLD && fabs(ymid - y4) < THRESHOLD) {
wx_spline_add_point( x1, y1 );
wx_spline_add_point( xmid, ymid );
} else {
wx_spline_push(xmid, ymid, (double)half(xmid, x3), (double)half(ymid, y3),
(double)half(x3, x4), (double)half(y3, y4), x4, y4);
wx_spline_push(x1, y1, (double)half(x1, x2), (double)half(y1, y2),
(double)half(x2, xmid), (double)half(y2, ymid), xmid, ymid);
}
}
}
/* utilities used by spline drawing routines */
typedef struct wx_spline_stack_struct {
double x1, y1, x2, y2, x3, y3, x4, y4;
} Stack;
#define SPLINE_STACK_DEPTH 20
static Stack wx_spline_stack[SPLINE_STACK_DEPTH];
static Stack *wx_stack_top;
static int wx_stack_count;
void wx_clear_stack(void)
{
wx_stack_top = wx_spline_stack;
wx_stack_count = 0;
}
void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)
{
wx_stack_top->x1 = x1;
wx_stack_top->y1 = y1;
wx_stack_top->x2 = x2;
wx_stack_top->y2 = y2;
wx_stack_top->x3 = x3;
wx_stack_top->y3 = y3;
wx_stack_top->x4 = x4;
wx_stack_top->y4 = y4;
wx_stack_top++;
wx_stack_count++;
}
int wx_spline_pop(double *x1, double *y1, double *x2, double *y2,
double *x3, double *y3, double *x4, double *y4)
{
if (wx_stack_count == 0)
return (0);
wx_stack_top--;
wx_stack_count--;
*x1 = wx_stack_top->x1;
*y1 = wx_stack_top->y1;
*x2 = wx_stack_top->x2;
*y2 = wx_stack_top->y2;
*x3 = wx_stack_top->x3;
*y3 = wx_stack_top->y3;
*x4 = wx_stack_top->x4;
*y4 = wx_stack_top->y4;
return (1);
}
static bool wx_spline_add_point(double x, double y)
{
wxPoint *point = new wxPoint ;
point->x = (int) x;
point->y = (int) y;
wx_spline_point_list.Append((wxObject*)point);
return TRUE;
}
static void wx_spline_draw_point_array(wxDC *dc)
{
dc->DrawLines(&wx_spline_point_list, 0, 0 );
wxNode *node = wx_spline_point_list.First();
while (node)
{
wxPoint *point = (wxPoint *)node->Data();
delete point;
delete node;
node = wx_spline_point_list.First();
}
}
void wxWindowDC::DrawSpline( wxList *points )
{
wxPoint *p;
double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
double x1, y1, x2, y2;
wxNode *node = points->First();
p = (wxPoint *)node->Data();
x1 = p->x;
y1 = p->y;
node = node->Next();
p = (wxPoint *)node->Data();
x2 = p->x;
y2 = p->y;
cx1 = (double)((x1 + x2) / 2);
cy1 = (double)((y1 + y2) / 2);
cx2 = (double)((cx1 + x2) / 2);
cy2 = (double)((cy1 + y2) / 2);
wx_spline_add_point(x1, y1);
while ((node = node->Next()) != NULL)
{
p = (wxPoint *)node->Data();
x1 = x2;
y1 = y2;
x2 = p->x;
y2 = p->y;
cx4 = (double)(x1 + x2) / 2;
cy4 = (double)(y1 + y2) / 2;
cx3 = (double)(x1 + cx4) / 2;
cy3 = (double)(y1 + cy4) / 2;
wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
cx1 = cx4;
cy1 = cy4;
cx2 = (double)(cx1 + x2) / 2;
cy2 = (double)(cy1 + y2) / 2;
}
wx_spline_add_point( cx1, cy1 );
wx_spline_add_point( x2, y2 );
wx_spline_draw_point_array( this );
};
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