paweld/lazarus
1
0
Fork 0
mirror of https://gitlab.com/freepascal.org/lazarus/lazarus.git synced 2025-08-14 23:39:08 +02:00
Code Issues Packages Projects Releases Wiki Activity

LCL-CustomDrawn-Android: Improves the text measuring code so that now white space is correctly handled in TEdit

Browse Source 
git-svn-id: trunk@37294 -
This commit is contained in:
sekelsenmat 2012-05-16 16:00:49 +00:00
parent 6523578777
commit 9990ed11e7
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
examples/androidlcl/android/src/com/pascal/lcltest/LCLActivity.java
View File

@ -330,11 +330,15 @@ public class LCLActivity extends Activity implements SensorEventListener, Locati
{ {
Paint localpaint = new Paint(); Paint localpaint = new Paint();
Rect localbounds = new Rect(); Rect localbounds = new Rect();
String lcltext_hack = "M" + lcltext + "M";
localpaint.setTextSize(lcltextsize); localpaint.setTextSize(lcltextsize);
localpaint.getTextBounds(lcltext, 0, lcltext.length(), localbounds); // Paint.getTextBounds has multiple problems:
lclwidth = localbounds.width(); // 1->It consistently gives us a too small size
// Painter.getTextBounds consistently gives us a too small size, so work around that // 2->It ignores spaces in the end and has issues with some characters, see http://code.google.com/p/android/issues/detail?id=7527
lclwidth = lclwidth + (3 * lcltextsize) / 16; // so we use measureText instead, but it also has problem 2, so we need to add a character to the start and end of text and then subtract it =(
lclwidth = (int) (localpaint.measureText(lcltext_hack) - localpaint.measureText("MM"));
// Painter.getTextBounds consistently gives us a too small size so work around that
// lclwidth = lclwidth + (3 * lcltextsize) / 16;
// Don't use just localbounds.height() from the source text // Don't use just localbounds.height() from the source text
// because it will calculate the minimum necessary height, // because it will calculate the minimum necessary height,
// but we can't easily use that to draw text because it draws relative to the baseline // but we can't easily use that to draw text because it draws relative to the baseline