I added the code to filter out non-printing characters in native, like
Mark suggested. It is a lot more efficient.
2005-11-22 Lillian Angel <[EMAIL PROTECTED]>
PR 24937
* gnu/java/awt/peer/gtk/GdkGraphics.java
(drawString): Removed pattern matching code. This is now
done in native.
* native/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkGraphics.c
(Java_gnu_java_awt_peer_gtk_GdkGraphics_drawString): Added
a loop to filter out all non-printing characters.
On Tue, 2005-11-22 at 09:37 -0500, Lillian Angel wrote:
> Robert was right about the regex. I have fixed it for now. I will work
> on putting the filtering of characters in the native code instead.
>
> 2005-11-22 Lillian Angel <[EMAIL PROTECTED]>
>
> * gnu/java/awt/peer/gtk/GdkGraphics.java
> (drawString): Fixed regex.
>
>
>
> On Tue, 2005-11-22 at 12:35 +0100, Robert Schuster wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > Hi Lillian,
> > this broke text drawing considerably. All the spaces in labels, textfields
> > etc
> > are missing now.
> >
> > Lillian Angel wrote:
> > >> public class GdkGraphics extends Graphics
> > >> {
> > >>@@ -247,10 +247,13 @@
> > >> native void drawString (GdkFontPeer f, String str, int x, int y);
> > >> public void drawString (String str, int x, int y)
> > >> {
> > >>+ // FIXME: Possibly more characters we need to ignore/
> > >>+ // Also, implementation may be inefficent because allocating
> > >>+ // new Strings.
> >
> > The reason for this is here:
> >
> > >>+ str = Pattern.compile("[\b | \t | \n | \f | \r | \" |
> > >>\']").matcher(str).replaceAll("");
> >
> > I guess you added the spaces to let the regexp look a bit nicer but this
> > actually means that the expression will match space characters. The correct
> > expression would be: "[\b|\t|\n|\f|\r|\"|\']"
> >
> > Apart from that I think Mark is right here. Doing the filtering in C would
> > result in better performance. You could implement a special variant of the
> > JNI
> > function that makes Java Strings available as C strings and filter unwanted
> > characters in it.
> >
> > cya
> > Robert
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.4.1 (GNU/Linux)
> > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
> >
> > iD8DBQFDgwKMG9cfwmwwEtoRAuc4AJ9vJz9to+lDFTchIs1qtPTOnwyoggCeJp5d
> > dFgnMuaS2/DCWKmYZMCP/Sk=
> > =z6rn
> > -----END PGP SIGNATURE-----
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Index: gnu/java/awt/peer/gtk/GdkGraphics.java
===================================================================
RCS file: /cvsroot/classpath/classpath/gnu/java/awt/peer/gtk/GdkGraphics.java,v
retrieving revision 1.51
diff -u -r1.51 GdkGraphics.java
--- gnu/java/awt/peer/gtk/GdkGraphics.java 22 Nov 2005 14:37:43 -0000 1.51
+++ gnu/java/awt/peer/gtk/GdkGraphics.java 22 Nov 2005 19:06:03 -0000
@@ -247,10 +247,6 @@
native void drawString (GdkFontPeer f, String str, int x, int y);
public void drawString (String str, int x, int y)
{
- // FIXME: Possibly more characters we need to ignore/
- // Also, implementation may be inefficent because allocating
- // new Strings.
- str = Pattern.compile("[\b|\t|\n|\f|\r|\"|\']").matcher(str).replaceAll("");
drawString(getFontPeer(), str, x, y);
}
Index: native/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkGraphics.c
===================================================================
RCS file: /cvsroot/classpath/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkGraphics.c,v
retrieving revision 1.29
diff -u -r1.29 gnu_java_awt_peer_gtk_GdkGraphics.c
--- native/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkGraphics.c 22 Sep 2005 20:25:39 -0000 1.29
+++ native/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkGraphics.c 22 Nov 2005 19:06:04 -0000
@@ -291,6 +291,11 @@
struct peerfont *pfont = NULL;
struct graphics *g = NULL;
const char *cstr = NULL;
+ char *p = NULL;
+ char *tmp = NULL;
+ char *sTmp = NULL;
+ int count = 0;
+ int charSize = 0;
int baseline_y = 0;
PangoLayoutIter *iter = NULL;
@@ -303,9 +308,29 @@
g_assert (pfont != NULL);
cstr = (*env)->GetStringUTFChars (env, str, NULL);
+ g_assert (cstr != NULL);
+
+ charSize = sizeof(char);
+ p = malloc((strlen(cstr) + 1) * charSize);
+ g_assert (p != NULL);
+
+ tmp = p;
+ sTmp = cstr;
+ for (; *sTmp != '\0'; sTmp++)
+ if (isprint(*sTmp))
+ {
+ *p = *sTmp;
+ count++;
+ p++;
+ }
+ *p = '\0';
+
+ p = realloc(tmp, (count + 1) * charSize);
+ g_assert (p != NULL);
+ pango_layout_set_text (pfont->layout, p, -1);
+ free(p);
pango_layout_set_font_description (pfont->layout, pfont->desc);
- pango_layout_set_text (pfont->layout, cstr, -1);
iter = pango_layout_get_iter (pfont->layout);
baseline_y = pango_layout_iter_get_baseline (iter);
@@ -317,7 +342,7 @@
pango_layout_iter_free (iter);
pango_layout_set_text (pfont->layout, "", -1);
-
+
gdk_flush ();
(*env)->ReleaseStringUTFChars (env, str, cstr);
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