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-rw-r--r--javax/swing/text/Utilities.java117
1 files changed, 59 insertions, 58 deletions
diff --git a/javax/swing/text/Utilities.java b/javax/swing/text/Utilities.java
index fa2d1ab52..d49d806cf 100644
--- a/javax/swing/text/Utilities.java
+++ b/javax/swing/text/Utilities.java
@@ -89,12 +89,12 @@ public class Utilities
// The font metrics of the current selected font.
FontMetrics metrics = g.getFontMetrics();
+
int ascent = metrics.getAscent();
// The current x and y pixel coordinates.
int pixelX = x;
- int pixelWidth = 0;
int pos = s.offset;
int len = 0;
@@ -103,39 +103,43 @@ public class Utilities
for (int offset = s.offset; offset < end; ++offset)
{
char c = buffer[offset];
- if (c == '\t')
+ switch (c)
{
+ case '\t':
if (len > 0) {
g.drawChars(buffer, pos, len, pixelX, y);
- pixelX += pixelWidth;
- pixelWidth = 0;
+ pixelX += metrics.charsWidth(buffer, pos, len);
+ len = 0;
}
pos = offset+1;
- len = 0;
+ if (e != null)
+ pixelX = (int) e.nextTabStop((float) pixelX, startOffset + offset
+ - s.offset);
+ else
+ pixelX += metrics.charWidth(' ');
+ x = pixelX;
+ break;
+ case '\n':
+ case '\r':
+ if (len > 0) {
+ g.drawChars(buffer, pos, len, pixelX, y);
+ pixelX += metrics.charsWidth(buffer, pos, len);
+ len = 0;
+ }
+ x = pixelX;
+ break;
+ default:
+ len += 1;
}
-
- switch (c)
- {
- case '\t':
- // In case we have a tab, we just 'jump' over the tab.
- // When we have no tab expander we just use the width of ' '.
- if (e != null)
- pixelX = (int) e.nextTabStop(pixelX,
- startOffset + offset - s.offset);
- else
- pixelX += metrics.charWidth(' ');
- break;
- default:
- ++len;
- pixelWidth += metrics.charWidth(buffer[offset]);
- break;
- }
}
if (len > 0)
- g.drawChars(buffer, pos, len, pixelX, y);
+ {
+ g.drawChars(buffer, pos, len, pixelX, y);
+ pixelX += metrics.charsWidth(buffer, pos, len);
+ }
- return pixelX + pixelWidth;
+ return pixelX;
}
/**
@@ -163,7 +167,9 @@ public class Utilities
// The current maximum width.
int maxWidth = 0;
- for (int offset = s.offset; offset < (s.offset + s.count); ++offset)
+ int end = s.offset + s.count;
+ int count = 0;
+ for (int offset = s.offset; offset < end; offset++)
{
switch (buffer[offset])
{
@@ -179,21 +185,18 @@ public class Utilities
case '\n':
// In case we have a newline, we must 'draw'
// the buffer and jump on the next line.
- pixelX += metrics.charWidth(buffer[offset]);
- maxWidth = Math.max(maxWidth, pixelX - x);
- pixelX = x;
- break;
- default:
- // Here we draw the char.
- pixelX += metrics.charWidth(buffer[offset]);
- break;
- }
+ pixelX += metrics.charsWidth(buffer, offset - count, count);
+ count = 0;
+ break;
+ default:
+ count++;
+ }
}
// Take the last line into account.
- maxWidth = Math.max(maxWidth, pixelX - x);
+ pixelX += metrics.charsWidth(buffer, end - count, count);
- return maxWidth;
+ return pixelX - x;
}
/**
@@ -228,43 +231,41 @@ public class Utilities
int x, TabExpander te, int p0,
boolean round)
{
- // At the end of the for loop, this holds the requested model location
- int pos;
+ int found = s.count;
int currentX = x0;
- int width = 0;
+ int nextX = currentX;
- for (pos = 0; pos < s.count; pos++)
+ int end = s.offset + s.count;
+ for (int pos = s.offset; pos < end && found == s.count; pos++)
{
- char nextChar = s.array[s.offset+pos];
-
- if (nextChar == 0)
- break;
+ char nextChar = s.array[pos];
if (nextChar != '\t')
- width = fm.charWidth(nextChar);
+ nextX += fm.charWidth(nextChar);
else
{
if (te == null)
- width = fm.charWidth(' ');
+ nextX += fm.charWidth(' ');
else
- width = ((int) te.nextTabStop(currentX, pos)) - currentX;
+ nextX += ((int) te.nextTabStop(nextX, p0 + pos - s.offset));
}
- if (round)
+ if (x >= currentX && x < nextX)
{
- if (currentX + (width>>1) > x)
- break;
- }
- else
- {
- if (currentX + width > x)
- break;
+ // Found position.
+ if ((! round) || ((x - currentX) < (nextX - x)))
+ {
+ found = pos - s.offset;
+ }
+ else
+ {
+ found = pos + 1 - s.offset;
+ }
}
-
- currentX += width;
+ currentX = nextX;
}
- return pos;
+ return found;
}
/**