void uiDrawPathAddRectangle(uiDrawPath *p, double x, double y, double width, double height)
{
// this is the same algorithm used by cairo and Core Graphics, according to their documentations
uiDrawPathNewFigure(p, x, y);
uiDrawPathLineTo(p, x + width, y);
uiDrawPathLineTo(p, x + width, y + height);
uiDrawPathLineTo(p, x, y + height);
uiDrawPathCloseFigure(p);
}
// TODO this should be altered not to restore all state on exit so default text attributes can be checked
static void drawGuides(uiDrawContext *c, uiDrawTextFontMetrics *m)
{
uiDrawPath *p;
uiDrawBrush b;
uiDrawStrokeParams sp;
memset(&b, 0, sizeof (uiDrawBrush));
b.Type = uiDrawBrushTypeSolid;
memset(&sp, 0, sizeof (uiDrawStrokeParams));
sp.Cap = uiDrawLineCapFlat;
sp.Join = uiDrawLineJoinMiter;
sp.MiterLimit = uiDrawDefaultMiterLimit;
sp.Thickness = 2;
uiDrawSave(c);
p = uiDrawNewPath(uiDrawFillModeWinding);
uiDrawPathNewFigure(p, 8, 10);
uiDrawPathLineTo(p, 8, 10 + m->Ascent);
uiDrawPathEnd(p);
b.R = 0.94;
b.G = 0.5;
b.B = 0.5;
b.A = 1.0;
uiDrawStroke(c, p, &b, &sp);
uiDrawFreePath(p);
p = uiDrawNewPath(uiDrawFillModeWinding);
uiDrawPathNewFigure(p, 8, 10 + m->Ascent);
uiDrawPathLineTo(p, 8, 10 + m->Ascent + m->Descent);
uiDrawPathEnd(p);
b.R = 0.12;
b.G = 0.56;
b.B = 1.0;
b.A = 1.0;
uiDrawStroke(c, p, &b, &sp);
uiDrawFreePath(p);
p = uiDrawNewPath(uiDrawFillModeWinding);
uiDrawPathAddRectangle(p, 0, 0, 10, 10);
uiDrawPathEnd(p);
uiDrawClip(c, p);
b.R = 0.85;
b.G = 0.65;
b.B = 0.13;
b.A = 1.0;
uiDrawStroke(c, p, &b, &sp);
uiDrawFreePath(p);
uiDrawRestore(c);
}
static void drawGuides(uiDrawContext *c, uiDrawTextFontMetrics *m)
{
uiDrawPath *p;
uiDrawBrush b;
uiDrawStrokeParams sp;
double leading;
double y;
leading = 0;
if (uiCheckboxChecked(addLeading))
leading = m->Leading;
memset(&b, 0, sizeof (uiDrawBrush));
b.Type = uiDrawBrushTypeSolid;
memset(&sp, 0, sizeof (uiDrawStrokeParams));
sp.Cap = uiDrawLineCapFlat;
sp.Join = uiDrawLineJoinMiter;
sp.MiterLimit = uiDrawDefaultMiterLimit;
sp.Thickness = 2;
uiDrawSave(c);
p = uiDrawNewPath(uiDrawFillModeWinding);
y = 10;
uiDrawPathNewFigure(p, 8, y);
y += m->Ascent;
uiDrawPathLineTo(p, 8, y);
uiDrawPathEnd(p);
b.R = 0.94;
b.G = 0.5;
b.B = 0.5;
b.A = 1.0;
uiDrawStroke(c, p, &b, &sp);
uiDrawFreePath(p);
p = uiDrawNewPath(uiDrawFillModeWinding);
uiDrawPathNewFigure(p, 8, y);
y += m->Descent;
uiDrawPathLineTo(p, 8, y);
uiDrawPathEnd(p);
b.R = 0.12;
b.G = 0.56;
b.B = 1.0;
b.A = 1.0;
uiDrawStroke(c, p, &b, &sp);
uiDrawFreePath(p);
// and again for the second line
p = uiDrawNewPath(uiDrawFillModeWinding);
y += leading;
uiDrawPathNewFigure(p, 8, y);
y += m->Ascent;
uiDrawPathLineTo(p, 8, y);
uiDrawPathEnd(p);
b.R = 0.94;
b.G = 0.5;
b.B = 0.5;
b.A = 0.75;
uiDrawStroke(c, p, &b, &sp);
uiDrawFreePath(p);
p = uiDrawNewPath(uiDrawFillModeWinding);
uiDrawPathNewFigure(p, 8, y);
y += m->Descent;
uiDrawPathLineTo(p, 8, y);
uiDrawPathEnd(p);
b.R = 0.12;
b.G = 0.56;
b.B = 1.0;
b.A = 0.75;
uiDrawStroke(c, p, &b, &sp);
uiDrawFreePath(p);
// and a box to text layout top-left corners
p = uiDrawNewPath(uiDrawFillModeWinding);
uiDrawPathAddRectangle(p, 0, 0, 10, 10);
uiDrawPathEnd(p);
uiDrawClip(c, p);
b.R = 0.85;
b.G = 0.65;
b.B = 0.13;
b.A = 1.0;
uiDrawStroke(c, p, &b, &sp);
uiDrawFreePath(p);
uiDrawRestore(c);
}
