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Fix Textbounds getBounds, getMultilineBounds, getWrappedBounds

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This commit is contained in:
Anthony Calosa
2019-09-09 16:10:51 +08:00
parent af6c826cc4
commit 17b578ae9c
3 changed files with 176 additions and 11 deletions
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183
forge-gui-mobile/src/forge/assets/FSkinFont.java
View File

@@ -5,8 +5,12 @@ import com.badlogic.gdx.files.FileHandle;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.*;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.BitmapFont.BitmapFontData;
import com.badlogic.gdx.graphics.g2d.BitmapFont.Glyph;
import com.badlogic.gdx.graphics.g2d.PixmapPacker;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator;
import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator.FreeTypeFontParameter;
import com.badlogic.gdx.graphics.glutils.PixmapTextureData;
@@ -26,7 +30,6 @@ public class FSkinFont {
private static final String TTF_FILE = "font1.ttf";
private static final Map<Integer, FSkinFont> fonts = new HashMap<>();
private static final GlyphLayout layout = new GlyphLayout();
static {
FileUtil.ensureDirectoryExists(ForgeConstants.FONTS_DIR);
@@ -90,26 +93,188 @@ public class FSkinFont {
fontSize = fontSize0;
updateFont();
}
static int indexOf (CharSequence text, char ch, int start) {
final int n = text.length();
for (; start < n; start++)
if (text.charAt(start) == ch) return start;
return n;
}
public int computeVisibleGlyphs (CharSequence str, int start, int end, float availableWidth) {
BitmapFontData data = font.getData();
int index = start;
float width = 0;
Glyph lastGlyph = null;
availableWidth /= data.scaleX;
for (; index < end; index++) {
char ch = str.charAt(index);
if (ch == '[' && data.markupEnabled) {
index++;
if (!(index < end && str.charAt(index) == '[')) { // non escaped '['
while (index < end && str.charAt(index) != ']')
index++;
continue;
}
}
Glyph g = data.getGlyph(ch);
if (g != null) {
if (lastGlyph != null) width += lastGlyph.getKerning(ch);
if ((width + g.xadvance) - availableWidth > 0.001f) break;
width += g.xadvance;
lastGlyph = g;
}
}
return index - start;
}
public boolean isBreakChar (char c) {
BitmapFontData data = font.getData();
if (data.breakChars == null) return false;
for (char br : data.breakChars)
if (c == br) return true;
return false;
}
static boolean isWhitespace (char c) {
switch (c) {
case '\n':
case '\r':
case '\t':
case ' ':
return true;
default:
return false;
}
}
// Expose methods from font that updates scale as needed
public TextBounds getBounds(CharSequence str) {
updateScale(); //must update scale before measuring text
layout.setText(font, str);
return new TextBounds(layout.width, layout.height);
return getBounds(str, 0, str.length());
}
public TextBounds getBounds(CharSequence str, int start, int end) {
BitmapFontData data = font.getData();
//int start = 0;
//int end = str.length();
int width = 0;
Glyph lastGlyph = null;
while (start < end) {
char ch = str.charAt(start++);
if (ch == '[' && data.markupEnabled) {
if (!(start < end && str.charAt(start) == '[')) { // non escaped '['
while (start < end && str.charAt(start) != ']')
start++;
start++;
continue;
}
start++;
}
lastGlyph = data.getGlyph(ch);
if (lastGlyph != null) {
width = lastGlyph.xadvance;
break;
}
}
while (start < end) {
char ch = str.charAt(start++);
if (ch == '[' && data.markupEnabled) {
if (!(start < end && str.charAt(start) == '[')) { // non escaped '['
while (start < end && str.charAt(start) != ']')
start++;
start++;
continue;
}
start++;
}
Glyph g = data.getGlyph(ch);
if (g != null) {
width += lastGlyph.getKerning(ch);
lastGlyph = g;
width += g.xadvance;
}
}
return new TextBounds(width * data.scaleX, data.capHeight);
}
public TextBounds getMultiLineBounds(CharSequence str) {
updateScale();
layout.setText(font, str);
return new TextBounds(layout.width, layout.height);
BitmapFontData data = font.getData();
int start = 0;
float maxWidth = 0;
int numLines = 0;
int length = str.length();
while (start < length) {
int lineEnd = indexOf(str, '\n', start);
float lineWidth = getBounds(str, start, lineEnd).width;
maxWidth = Math.max(maxWidth, lineWidth);
start = lineEnd + 1;
numLines++;
}
return new TextBounds(maxWidth, data.capHeight + (numLines - 1) * data.lineHeight);
}
public TextBounds getWrappedBounds(CharSequence str, float wrapWidth) {
updateScale();
layout.setText(font, str);
layout.width = wrapWidth;
return new TextBounds(layout.width, layout.height);
BitmapFontData data = font.getData();
if (wrapWidth <= 0) wrapWidth = Integer.MAX_VALUE;
int start = 0;
int numLines = 0;
int length = str.length();
float maxWidth = 0;
while (start < length) {
int newLine = indexOf(str, '\n', start);
int lineEnd = start + computeVisibleGlyphs(str, start, newLine, wrapWidth);
int nextStart = lineEnd + 1;
if (lineEnd < newLine) {
// Find char to break on.
while (lineEnd > start) {
if (isWhitespace(str.charAt(lineEnd))) break;
if (isBreakChar(str.charAt(lineEnd - 1))) break;
lineEnd--;
}
if (lineEnd == start) {
if (nextStart > start + 1) nextStart--;
lineEnd = nextStart; // If no characters to break, show all.
} else {
nextStart = lineEnd;
// Eat whitespace at start of wrapped line.
while (nextStart < length) {
char c = str.charAt(nextStart);
if (!isWhitespace(c)) break;
nextStart++;
if (c == '\n') break; // Eat only the first wrapped newline.
}
// Eat whitespace at end of line.
while (lineEnd > start) {
if (!isWhitespace(str.charAt(lineEnd - 1))) break;
lineEnd--;
}
}
}
if (lineEnd > start) {
float lineWidth = getBounds(str, start, lineEnd).width;
maxWidth = Math.max(maxWidth, lineWidth);
}
start = nextStart;
numLines++;
}
return new TextBounds(maxWidth, data.capHeight + (numLines - 1) * data.lineHeight);
}
public float getAscent() {
updateScale();

2
forge-gui-mobile/src/forge/screens/SplashScreen.java
View File

@@ -94,7 +94,7 @@ public class SplashScreen extends FContainer {
String disclaimer = "Forge is not affiliated in any way with Wizards of the Coast.\n"
+ "Forge is open source software, released under the GNU Public License.";
g.drawText(disclaimer, disclaimerFont, FProgressBar.SEL_FORE_COLOR,
x, y, w, disclaimerHeight, false, Align.center, true);
x, y, w, disclaimerHeight, true, Align.center, true);
float padding = 20f / 450f * w;
float pbHeight = 57f / 450f * h;

2
forge-gui-mobile/src/forge/screens/settings/SettingsPage.java
View File

@@ -513,7 +513,7 @@ public class SettingsPage extends TabPage<SettingsScreen> {
g.drawText(value.label, font, foreColor, x, y, w, h, false, Align.left, false);
value.drawPrefValue(g, font, foreColor, x, y, w, h);
h += SettingsScreen.SETTING_PADDING;//TODO: adjust settings page description bounds
h += SettingsScreen.SETTING_PADDING;
g.drawText(value.description, SettingsScreen.DESC_FONT, SettingsScreen.DESC_COLOR, x, y + h, w, totalHeight - h + SettingsScreen.getInsets(w), true, Align.left, false);
}
}