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CtrCore: Cocoa: Rotated text

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git-svn-id: svn://ultimatepp.org/upp/trunk@12187 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
cxl 2018-08-26 11:24:22 +00:00
parent 1e8320f379
commit c17038f51c
2 changed files with 34 additions and 33 deletions
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46
uppsrc/CtrlCore/CocoDrawText.mm
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@ -7,17 +7,18 @@
namespace Upp {
CTFontRef CT_Font0(Font fnt, bool& synth)
CTFontRef CT_Font0(Font fnt, int angle, bool& synth)
{
CFRef<CFStringRef> s = CFStringCreateWithCString(NULL, ~fnt.GetFaceName(), kCFStringEncodingUTF8);
CFRef<CTFontRef> ctfont0 = CTFontCreateWithName(s, fnt.GetHeight(), NULL);
CGAffineTransform transform = angle ? CGAffineTransformMakeRotation(M_2PI * angle / 3600)
: CGAffineTransformIdentity;
CFRef<CTFontRef> ctfont0 = CTFontCreateWithName(s, fnt.GetHeight(), &transform);
if(fnt.IsItalic() || fnt.IsBold()) {
CTFontSymbolicTraits symbolicTraits = 0;
if(fnt.IsBold())
symbolicTraits |= kCTFontBoldTrait;
if(fnt.IsItalic())
symbolicTraits |= kCTFontItalicTrait;
CGAffineTransform transform = CGAffineTransformIdentity;
CFRef<CTFontRef> ctfont = CTFontCreateCopyWithSymbolicTraits(ctfont0, fnt.GetHeight(),
&transform, symbolicTraits, symbolicTraits);
if(ctfont)
@ -27,10 +28,11 @@ CTFontRef CT_Font0(Font fnt, bool& synth)
return ctfont0.Detach();
}
CTFontRef CT_Font(Font fnt)
CTFontRef CT_Font(Font fnt, int angle = 0)
{
struct Entry {
Font font;
int angle;
CTFontRef ctfont = NULL;
bool synth = false;
@ -43,12 +45,12 @@ CTFontRef CT_Font(Font fnt)
const int FONTCACHE = 64;
static Entry cache[FONTCACHE];
for(int i = 0; i < FONTCACHE; i++)
if(cache[i].font == fnt)
if(cache[i].font == fnt && cache[i].angle == angle)
return cache[i].ctfont;
Entry& e = cache[Random(FONTCACHE)];
e.Free();
e.font = fnt;
e.ctfont = CT_Font0(fnt, e.synth);
e.ctfont = CT_Font0(fnt, angle, e.synth);
return e.ctfont;
}
@ -219,25 +221,24 @@ void RenderCharacterSys(FontGlyphConsumer& sw, double x, double y, int chr, Font
void SystemDraw::DrawTextOp(int x, int y, int angle, const wchar *text, Font font, Color ink,
int n, const int *dx)
{
// DLOG("angle " << angle << ", text " << text << ", ink " << ink);
Set(ink); // needs to be here because rotation saves context...
if(angle) {
// TODO: Fix this!
CGContextSaveGState(cgHandle);
CGContextRotateCTM(cgHandle, 3 * M_PI * angle / 1800);
CGContextTranslateCTM(cgHandle, x, -y);
DrawTextOp(0, 0, 0, text, font, ink, n, dx);
CGContextRestoreGState(cgHandle);
return;
}
Set(ink);
CFRef<CGFontRef> cgFont = CTFontCopyGraphicsFont(CT_Font(font), NULL);
CFRef<CGFontRef> cgFont = CTFontCopyGraphicsFont(CT_Font(font, 0), NULL);
CGContextSetFont(cgHandle, cgFont);
Point off = GetOffset();
x += off.x;
y = top - y - font.GetAscent() - off.y;
if(angle) {
CGAffineTransform tm = CGAffineTransformMakeTranslation(x + off.x, top - y - off.y);
tm = CGAffineTransformRotate(tm, M_2PI * angle / 3600);
CGContextSetTextMatrix(cgHandle, tm);
x = 0;
y = -font.GetAscent();
}
else {
x += off.x;
y = top - y - font.GetAscent() - off.y;
}
Buffer<CGGlyph> g(n);
Buffer<CGPoint> p(n);
@ -252,6 +253,9 @@ void SystemDraw::DrawTextOp(int x, int y, int angle, const wchar *text, Font fon
CGContextSetFontSize(cgHandle, font.GetHeight());
CGContextShowGlyphsAtPositions(cgHandle, g, p, n);
if(angle)
CGContextSetTextMatrix(cgHandle, CGAffineTransformIdentity);
}
};