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re-merging of PFont2 into PFont, based on reflection work

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benfry
2004-10-09 22:04:17 +00:00
parent bb5592879c
commit 03de6dde13
4 changed files with 699 additions and 287 deletions
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341
processing/core/PFont.java
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@@ -25,7 +25,9 @@
package processing.core;
import java.awt.*;
import java.io.*;
import java.lang.reflect.*;
import java.util.*;
@@ -913,4 +915,343 @@ public class PFont implements PConstants {
}
}
}
// ....................................................................
/**
* This is the union of the Mac Roman and Windows ANSI
* character sets. ISO Latin 1 would be Unicode characters
* 0x80 -> 0xFF, but in practice, it would seem that most
* designers using P5 would rather have the characters
* that they expect from their platform's fonts.
*
* This is more of an interim solution until a much better
* font solution can be determined. (i.e. create fonts on
* the fly from some sort of vector format).
*
* Not that I expect that to happen.
*/
static final char[] EXTRA_CHARS = {
0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
0x0088, 0x0089, 0x008A, 0x008B, 0x008C, 0x008D, 0x008E, 0x008F,
0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
0x0098, 0x0099, 0x009A, 0x009B, 0x009C, 0x009D, 0x009E, 0x009F,
0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
0x00B0, 0x00B1, 0x00B4, 0x00B5, 0x00B6, 0x00B7, 0x00B8, 0x00BA,
0x00BB, 0x00BF, 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5,
0x00C6, 0x00C7, 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD,
0x00CE, 0x00CF, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6,
0x00D7, 0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DF,
0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7, 0x00F8,
0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FF, 0x0102, 0x0103,
0x0104, 0x0105, 0x0106, 0x0107, 0x010C, 0x010D, 0x010E, 0x010F,
0x0110, 0x0111, 0x0118, 0x0119, 0x011A, 0x011B, 0x0131, 0x0139,
0x013A, 0x013D, 0x013E, 0x0141, 0x0142, 0x0143, 0x0144, 0x0147,
0x0148, 0x0150, 0x0151, 0x0152, 0x0153, 0x0154, 0x0155, 0x0158,
0x0159, 0x015A, 0x015B, 0x015E, 0x015F, 0x0160, 0x0161, 0x0162,
0x0163, 0x0164, 0x0165, 0x016E, 0x016F, 0x0170, 0x0171, 0x0178,
0x0179, 0x017A, 0x017B, 0x017C, 0x017D, 0x017E, 0x0192, 0x02C6,
0x02C7, 0x02D8, 0x02D9, 0x02DA, 0x02DB, 0x02DC, 0x02DD, 0x03A9,
0x03C0, 0x2013, 0x2014, 0x2018, 0x2019, 0x201A, 0x201C, 0x201D,
0x201E, 0x2020, 0x2021, 0x2022, 0x2026, 0x2030, 0x2039, 0x203A,
0x2044, 0x20AC, 0x2122, 0x2202, 0x2206, 0x220F, 0x2211, 0x221A,
0x221E, 0x222B, 0x2248, 0x2260, 0x2264, 0x2265, 0x25CA, 0xF8FF,
0xFB01, 0xFB02
};
static char[] charset;
static {
charset = new char[126-33+1 + EXTRA_CHARS.length];
int index = 0;
for (int i = 33; i <= 126; i++) {
charset[index++] = (char)i;
}
for (int i = 0; i < EXTRA_CHARS.length; i++) {
charset[index++] = EXTRA_CHARS[i];
}
};
public PFont(String name, int size) {
this(new Font(name, Font.PLAIN, size), false, true);
}
public PFont(String name, int size, boolean smooth) {
this(new Font(name, Font.PLAIN, size), false, smooth);
}
public PFont(Font font, boolean all, boolean smooth) {
try {
this.charCount = all ? 65536 : charset.length;
this.mbox = font.getSize();
fwidth = fheight = mbox;
PImage bitmaps[] = new PImage[charCount];
// allocate enough space for the character info
value = new int[charCount];
height = new int[charCount];
width = new int[charCount];
setWidth = new int[charCount];
topExtent = new int[charCount];
leftExtent = new int[charCount];
ascii = new int[128];
for (int i = 0; i < 128; i++) ascii[i] = -1;
int mbox3 = mbox * 3;
/*
BufferedImage playground =
new BufferedImage(mbox3, mbox3, BufferedImage.TYPE_INT_RGB);
Graphics2D g = (Graphics2D) playground.getGraphics();
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
smooth ?
RenderingHints.VALUE_ANTIALIAS_ON :
RenderingHints.VALUE_ANTIALIAS_OFF);
*/
Class bufferedImageClass =
Class.forName("java.awt.image.BufferedImage");
Constructor bufferedImageConstructor =
bufferedImageClass.getConstructor(new Class[] {
Integer.TYPE,
Integer.TYPE,
Integer.TYPE });
Field typeIntRgbField = bufferedImageClass.getField("TYPE_INT_RGB");
int typeIntRgb = typeIntRgbField.getInt(typeIntRgbField);
Object playground =
bufferedImageConstructor.newInstance(new Object[] {
new Integer(mbox3),
new Integer(mbox3),
new Integer(typeIntRgb) });
Class graphicsClass =
Class.forName("java.awt.Graphics2D");
Method getGraphicsMethod =
bufferedImageClass.getMethod("getGraphics", new Class[] { });
//Object g = getGraphicsMethod.invoke(playground, new Object[] { });
Graphics g = (Graphics)
getGraphicsMethod.invoke(playground, new Object[] { });
Class renderingHintsClass =
Class.forName("java.awt.RenderingHints");
Class renderingHintsKeyClass =
Class.forName("java.awt.RenderingHints$Key");
//PApplet.printarr(renderingHintsClass.getFields());
Field antialiasingKeyField =
renderingHintsClass.getDeclaredField("KEY_ANTIALIASING");
Object antialiasingKey =
antialiasingKeyField.get(renderingHintsClass);
Field antialiasField = smooth ?
renderingHintsClass.getField("VALUE_ANTIALIAS_ON") :
renderingHintsClass.getField("VALUE_ANTIALIAS_OFF");
Object antialiasState =
antialiasField.get(renderingHintsClass);
Method setRenderingHintMethod =
graphicsClass.getMethod("setRenderingHint",
new Class[] { renderingHintsKeyClass,
Object.class });
setRenderingHintMethod.invoke(g, new Object[] {
antialiasingKey,
antialiasState
});
g.setFont(font);
FontMetrics metrics = g.getFontMetrics();
Method canDisplayMethod = null;
Method getDataMethod = null;
Method getSamplesMethod = null;
int samples[] = new int[mbox3 * mbox3];
canDisplayMethod =
Font.class.getMethod("canDisplay", new Class[] { Character.TYPE });
getDataMethod =
bufferedImageClass.getMethod("getData", new Class[] { });
Class rasterClass = Class.forName("java.awt.image.Raster");
getSamplesMethod = rasterClass.getMethod("getSamples", new Class[] {
Integer.TYPE,
Integer.TYPE,
Integer.TYPE,
Integer.TYPE,
Integer.TYPE,
// integer array type?
//Array.class
samples.getClass()
});
//} catch (Exception e) {
//e.printStackTrace();
//return;
//}
//Array samples = Array.newInstance(Integer.TYPE, mbox3*mbox3);
int maxWidthHeight = 0;
int index = 0;
for (int i = 0; i < charCount; i++) {
char c = all ? (char)i : charset[i];
//if (!font.canDisplay(c)) { // skip chars not in the font
try {
Character ch = new Character(c);
Boolean canDisplay = (Boolean)
canDisplayMethod.invoke(font, new Object[] { ch });
if (canDisplay.booleanValue() == false) {
continue;
}
} catch (Exception e) {
e.printStackTrace();
return;
}
g.setColor(Color.white);
g.fillRect(0, 0, mbox3, mbox3);
g.setColor(Color.black);
g.drawString(String.valueOf(c), mbox, mbox * 2);
// grabs copy of the current data.. so no updates (do each time)
/*
Raster raster = playground.getData();
raster.getSamples(0, 0, mbox3, mbox3, 0, samples);
*/
Object raster = getDataMethod.invoke(playground, new Object[] {});
getSamplesMethod.invoke(raster, new Object[] {
new Integer(0),
new Integer(0),
new Integer(mbox3),
new Integer(mbox3),
new Integer(0),
samples
});
//int w = metrics.charWidth(c);
int minX = 1000, maxX = 0;
int minY = 1000, maxY = 0;
boolean pixelFound = false;
for (int y = 0; y < mbox3; y++) {
for (int x = 0; x < mbox3; x++) {
//int sample = raster.getSample(x, y, 0); // maybe?
int sample = samples[y * mbox3 + x] & 0xff;
// or int samples[] = raster.getPixel(x, y, null);
//if (sample == 0) { // or just not white? hmm
if (sample != 255) {
if (x < minX) minX = x;
if (y < minY) minY = y;
if (x > maxX) maxX = x;
if (y > maxY) maxY = y;
pixelFound = true;
//System.out.println(x + " " + y + " = " + sample);
}
}
}
if (!pixelFound) {
//System.out.println("no pixels found in char " + ((char)i));
// this was dumb that it was set to 20 & 30, because for small
// fonts, those guys don't exist
minX = minY = 0; //20;
maxX = maxY = 0; //30;
// this will create a 1 pixel white (clear) character..
// maybe better to set one to -1 so nothing is added?
}
value[index] = c;
height[index] = (maxY - minY) + 1;
width[index] = (maxX - minX) + 1;
setWidth[index] = metrics.charWidth(c);
//System.out.println((char)c + " " + setWidth[index]);
// cache locations of the ascii charset
//if (value[i] < 128) ascii[value[i]] = i;
if (c < 128) ascii[c] = index;
// offset from vertical location of baseline
// of where the char was drawn (mbox*2)
topExtent[index] = mbox*2 - minY;
// offset from left of where coord was drawn
leftExtent[index] = minX - mbox;
if (c == 'd') {
ascent = topExtent[index];
}
if (c == 'p') {
descent = -topExtent[index] + height[index];
}
if (width[index] > maxWidthHeight) maxWidthHeight = width[index];
if (height[index] > maxWidthHeight) maxWidthHeight = height[index];
bitmaps[index] = new PImage(new int[width[index] * height[index]],
width[index], height[index], ALPHA);
for (int y = minY; y <= maxY; y++) {
for (int x = minX; x <= maxX; x++) {
int value = 255 - (samples[y * mbox3 + x] & 0xff);
//int value = 255 - raster.getSample(x, y, 0);
int pindex = (y - minY) * width[index] + (x - minX);
bitmaps[index].pixels[pindex] = value;
}
}
index++;
}
charCount = index;
// foreign font, so just make ascent the max topExtent
if ((ascent == 0) && (descent == 0)) {
for (int i = 0; i < charCount; i++) {
char cc = (char) value[i];
if (Character.isWhitespace(cc) ||
(cc == '\u00A0') || (cc == '\u2007') || (cc == '\u202F')) {
continue;
}
if (topExtent[i] > ascent) {
ascent = topExtent[i];
}
int d = -topExtent[i] + height[i];
if (d > descent) {
descent = d;
}
}
}
// size for image/texture is next power of 2 over largest char
mbox2 = (int)
Math.pow(2, Math.ceil(Math.log(maxWidthHeight) / Math.log(2)));
twidth = theight = mbox2;
// shove the smaller PImage data into textures of next-power-of-2 size,
// so that this font can be used immediately by p5.
images = new PImage[charCount];
for (int i = 0; i < charCount; i++) {
images[i] = new PImage(new int[mbox2*mbox2], mbox2, mbox2, ALPHA);
for (int y = 0; y < height[i]; y++) {
System.arraycopy(bitmaps[i].pixels, y*width[i],
images[i].pixels, y*mbox2,
width[i]);
}
bitmaps[i] = null;
}
} catch (Exception e) { // catch-all for reflection stuff
e.printStackTrace();
return;
}
}
}