[Swingme-svn] SF.net SVN: swingme:[2464] iOSME/src/javax/microedition/lcdui/ Graphics.java

[<yu...@us...>]

Revision: 2464
          http://sourceforge.net/p/swingme/code/2464
Author:   yuranet
Date:     2021-06-22 19:44:48 +0000 (Tue, 22 Jun 2021)
Log Message:
-----------
font are right way round now

Modified Paths:
--------------
    iOSME/src/javax/microedition/lcdui/Graphics.java

Modified: iOSME/src/javax/microedition/lcdui/Graphics.java
===================================================================
--- iOSME/src/javax/microedition/lcdui/Graphics.java	2021-06-22 18:54:03 UTC (rev 2463)
+++ iOSME/src/javax/microedition/lcdui/Graphics.java	2021-06-22 19:44:48 UTC (rev 2464)
@@ -218,11 +218,12 @@
             anchor = javax.microedition.lcdui.Graphics.TOP | javax.microedition.lcdui.Graphics.LEFT;
         }
 
+        // https://www.cocoanetics.com/2010/02/understanding-uifont/
         if ((anchor & javax.microedition.lcdui.Graphics.TOP) != 0) {
-            newy -= 0;
+            newy += font.font.ascender(); // is positive
         }
         else if ((anchor & javax.microedition.lcdui.Graphics.BOTTOM) != 0) {
-            newy -= font.getHeight();
+            newy += font.font.descender(); // is negative
         }
 
         if ((anchor & javax.microedition.lcdui.Graphics.HCENTER) != 0) {
@@ -242,6 +243,7 @@
             //CoreFoundation.CFRelease(attributedStringRef);
             //CoreFoundation.CFRelease(stringRef);
 
+            // this does not require pissing about with TextMatrix, maybe i should use this
             //UIKit.UIGraphicsPushContext(context);
             //NSString string = NSString.stringWithString(str);
             //string.drawAtPointWithAttributes(new CGPoint(tx + newx, ty + newy), font.getAsNSDictionary());
@@ -255,9 +257,12 @@
             NSAttributedString attributedString = NSAttributedString.alloc().initWithStringAttributes(str, attributes);
             CTLineRef line = CoreText.CTLineCreateWithAttributedString(ObjCRuntime.cast(attributedString, CFAttributedStringRef.class));
 
+            // https://blog.spacemanlabs.com/2011/08/quick-tip-drawing-core-text-right-side-up/
+            CoreGraphics.CGContextSetTextMatrix(context, CoreGraphics.CGAffineTransformMakeScale(1.0f, -1.0f));
             CoreGraphics.CGContextSetTextPosition(context, tx + newx, ty + newy);
             CoreText.CTLineDraw(line, context);
 
+            CoreGraphics.CGContextSetTextMatrix(context, CoreGraphics.CGAffineTransformIdentity());
             CoreFoundation.CFRelease(line);
         //}
         //else {

This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.