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a61b03ea88
Update with https://www.scintilla.org/scintilla521.zip https://www.scintilla.org/lexilla515.zip - fix setting to bring Scintilla::PositionCR from ScintillaStructures.h inline with Sci_Position.h Sci_PositionCR - add workaround to enable lexer for searchResult commented out SCI_SETILEXER call on searchResult to get one result which is correctly handled by the lexer, added comment about the current problem with property @MarkingsStruct which seems to disappear after call to SCI_SETILEXER or CreateLexer - corrected usage of ObjC lexer - removed unnecessary filter stuff - use own sections for scintilla and lexilla build targets and allow parallel builds - as libscilex is no longer existing, changed to libscintilla - adapt makefiles and cmake - use VS2019 - started simple changes for createlexer adaptations, nullpointercheck missing on return of lexer name from deprecated LexerNameFromID -> undefined behaviour - movement from id -> lexer name, mostly done via LexerNameFromID + switching off corresponding compiler warning - changed to SCI_SETILEXER from SCI_SETLEXER, SCI_SETLEXERLANGUAGE needs to be corrected, see Scintilla5Migration.html - just commented out: SCI_LOADLEXERLIBRARY Fix #10504, close #11419
102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
/*
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* QuartzTextLayout.h
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*
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* Original Code by Evan Jones on Wed Oct 02 2002.
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* Contributors:
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* Shane Caraveo, ActiveState
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* Bernd Paradies, Adobe
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*
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*/
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#ifndef QUARTZTEXTLAYOUT_H
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#define QUARTZTEXTLAYOUT_H
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#include <Cocoa/Cocoa.h>
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#include "QuartzTextStyle.h"
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class QuartzTextLayout {
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public:
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/** Create a text layout for drawing. */
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QuartzTextLayout(std::string_view sv, CFStringEncoding encoding, const QuartzTextStyle *r) {
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encodingUsed = encoding;
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const UInt8 *puiBuffer = reinterpret_cast<const UInt8 *>(sv.data());
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CFStringRef str = CFStringCreateWithBytes(NULL, puiBuffer, sv.length(), encodingUsed, false);
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if (!str) {
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// Failed to decode bytes into string with given encoding so try
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// MacRoman which should accept any byte.
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encodingUsed = kCFStringEncodingMacRoman;
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str = CFStringCreateWithBytes(NULL, puiBuffer, sv.length(), encodingUsed, false);
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}
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if (!str) {
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return;
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}
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stringLength = CFStringGetLength(str);
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CFMutableDictionaryRef stringAttribs = r->getCTStyle();
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mString = ::CFAttributedStringCreate(NULL, str, stringAttribs);
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mLine = ::CTLineCreateWithAttributedString(mString);
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CFRelease(str);
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}
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~QuartzTextLayout() {
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if (mString) {
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CFRelease(mString);
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mString = NULL;
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}
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if (mLine) {
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CFRelease(mLine);
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mLine = NULL;
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}
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}
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/** Draw the text layout into a CGContext at the specified position.
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* @param gc The CGContext in which to draw the text.
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* @param x The x axis position to draw the baseline in the current CGContext.
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* @param y The y axis position to draw the baseline in the current CGContext. */
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void draw(CGContextRef gc, double x, double y) {
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if (!mLine)
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return;
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::CGContextSetTextMatrix(gc, CGAffineTransformMakeScale(1.0, -1.0));
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// Set the text drawing position.
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::CGContextSetTextPosition(gc, x, y);
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// And finally, draw!
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::CTLineDraw(mLine, gc);
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}
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float MeasureStringWidth() {
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if (mLine == NULL)
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return 0.0f;
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return static_cast<float>(::CTLineGetTypographicBounds(mLine, NULL, NULL, NULL));
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}
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CTLineRef getCTLine() {
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return mLine;
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}
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CFIndex getStringLength() {
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return stringLength;
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}
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CFStringEncoding getEncoding() {
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return encodingUsed;
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}
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private:
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CFAttributedStringRef mString = NULL;
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CTLineRef mLine = NULL;
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CFIndex stringLength = 0;
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CFStringEncoding encodingUsed = kCFStringEncodingMacRoman;
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};
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#endif
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