processing/app/src/processing/app/ui/Toolkit.java at master · 2php/processing · GitHub

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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */

Part of the Processing project - http://processing.org

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License version 2

as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software Foundation,

Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

package processing.app.ui;

import java.awt.Component;

import java.awt.Dimension;

import java.awt.Font;

import java.awt.FontFormatException;

import java.awt.FontMetrics;

import java.awt.Frame;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.GraphicsDevice;

import java.awt.GraphicsEnvironment;

import java.awt.Image;

import java.awt.RenderingHints;

import java.awt.Shape;

import java.awt.Window;

import java.awt.datatransfer.Clipboard;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import java.awt.font.FontRenderContext;

import java.awt.font.TextLayout;

import java.awt.geom.AffineTransform;

import java.awt.geom.GeneralPath;

import java.awt.image.ImageObserver;

import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.lang.reflect.Field;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Comparator;

import java.util.HashSet;

import java.util.List;

import java.util.Locale;

import java.util.regex.Pattern;

import javax.swing.Action;

import javax.swing.ImageIcon;

import javax.swing.JCheckBoxMenuItem;

import javax.swing.JComponent;

import javax.swing.JMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenuItem;

import javax.swing.JPopupMenu;

import javax.swing.JRootPane;

import javax.swing.KeyStroke;

import processing.app.Language;

import processing.app.Messages;

import processing.app.Platform;

import processing.app.Preferences;

import processing.app.Util;

/**

* Utility functions for base that require a java.awt.Toolkit object. These

* are broken out from Base as we start moving toward the possibility of the

* code running in headless mode.

* @author fry

public class Toolkit {

static public final String PROMPT_YES = Language.text("prompt.yes");

static public final String PROMPT_NO = Language.text("prompt.no");

static public final String PROMPT_CANCEL = Language.text("prompt.cancel");

static public final String PROMPT_OK = Language.text("prompt.ok");

static public final String PROMPT_BROWSE = Language.text("prompt.browse");

static final java.awt.Toolkit awtToolkit =

java.awt.Toolkit.getDefaultToolkit();

/** Command on Mac OS X, Ctrl on Windows and Linux */

static final int SHORTCUT_KEY_MASK =

awtToolkit.getMenuShortcutKeyMask();

/** Command-W on Mac OS X, Ctrl-W on Windows and Linux */

public static final KeyStroke WINDOW_CLOSE_KEYSTROKE =

KeyStroke.getKeyStroke('W', SHORTCUT_KEY_MASK);

/** Command-Option on Mac OS X, Ctrl-Alt on Windows and Linux */

static final int SHORTCUT_ALT_KEY_MASK =

ActionEvent.ALT_MASK | SHORTCUT_KEY_MASK;

/** Command-Shift on Mac OS X, Ctrl-Shift on Windows and Linux */

static final int SHORTCUT_SHIFT_KEY_MASK =

ActionEvent.SHIFT_MASK | SHORTCUT_KEY_MASK;

/**

* Standardized width for buttons. Mac OS X 10.3 wants 70 as its default,

* Windows XP needs 66, and my Ubuntu machine needs 80+, so 80 seems proper.

* This is now stored in the languages file since this may need to be larger

* for languages that are consistently wider than English.

static public int getButtonWidth() {

// Made into a method so that calling Toolkit methods doesn't require

// the languages to be loaded, and with that, Base initialized completely

return Integer.parseInt(Language.text("preferences.button.width"));

}

/**

* A software engineer, somewhere, needs to have their abstraction

* taken away. Who crafts the sort of API that would require a

* five-line helper function just to set the shortcut key for a

* menu item?

static public JMenuItem newJMenuItem(String title, int what) {

JMenuItem menuItem = new JMenuItem(title);

int modifiers = awtToolkit.getMenuShortcutKeyMask();

menuItem.setAccelerator(KeyStroke.getKeyStroke(what, modifiers));

return menuItem;

}

/**

* @param action: use an Action, which sets the title, reaction

* and enabled-ness all by itself.

static public JMenuItem newJMenuItem(Action action, int what) {

JMenuItem menuItem = new JMenuItem(action);

int modifiers = awtToolkit.getMenuShortcutKeyMask();

menuItem.setAccelerator(KeyStroke.getKeyStroke(what, modifiers));

return menuItem;

}

/**

* Like newJMenuItem() but adds shift as a modifier for the shortcut.

static public JMenuItem newJMenuItemShift(String title, int what) {

JMenuItem menuItem = new JMenuItem(title);

int modifiers = awtToolkit.getMenuShortcutKeyMask();

modifiers |= ActionEvent.SHIFT_MASK;

menuItem.setAccelerator(KeyStroke.getKeyStroke(what, modifiers));

return menuItem;

}

/**

* Like newJMenuItem() but adds shift as a modifier for the shortcut.

static public JMenuItem newJMenuItemShift(Action action, int what) {

JMenuItem menuItem = new JMenuItem(action);

int modifiers = awtToolkit.getMenuShortcutKeyMask();

modifiers |= ActionEvent.SHIFT_MASK;

menuItem.setAccelerator(KeyStroke.getKeyStroke(what, modifiers));

return menuItem;

}

/**

* Same as newJMenuItem(), but adds the ALT (on Linux and Windows)

* or OPTION (on Mac OS X) key as a modifier. This function should almost

* never be used, because it's bad for non-US keyboards that use ALT in

* strange and wondrous ways.

static public JMenuItem newJMenuItemAlt(String title, int what) {

JMenuItem menuItem = new JMenuItem(title);

menuItem.setAccelerator(KeyStroke.getKeyStroke(what, SHORTCUT_ALT_KEY_MASK));

return menuItem;

}

static public JCheckBoxMenuItem newJCheckBoxMenuItem(String title, int what) {

JCheckBoxMenuItem menuItem = new JCheckBoxMenuItem(title);

int modifiers = awtToolkit.getMenuShortcutKeyMask();

menuItem.setAccelerator(KeyStroke.getKeyStroke(what, modifiers));

return menuItem;

}

static public void addDisabledItem(JMenu menu, String title) {

JMenuItem item = new JMenuItem(title);

item.setEnabled(false);

menu.add(item);

}

/**

* Removes all mnemonics, then sets a mnemonic for each menu and menu item

* recursively by these rules:

* <ol>

* <li> It tries to assign one of <a href="http://techbase.kde.org/Projects/Usability/HIG/Keyboard_Accelerators">

* KDE's defaults</a>.</li>

* <li> Failing that, it loops through the first letter of each word, where a word

* is a block of Unicode "alphabetical" chars, looking for an upper-case ASCII mnemonic

* that is not taken. This is to try to be relevant, by using a letter well-associated

* with the command. (MS guidelines) </li>

* <li> Ditto, but with lowercase. </li>

* <li> Next, it tries the second ASCII character, if its width >= half the width of

* 'A'. </li>

* <li> If the first letters are all taken/non-ASCII, then it loops through the

* ASCII letters in the item, widest to narrowest, seeing if any of them is not taken.

* To improve readability, it discriminates against decenders (qypgj), imagining they

* have 2/3 their actual width. (MS guidelines: avoid decenders). It also discriminates

* against vowels, imagining they have 2/3 their actual width. (MS and Gnome guidelines:

* avoid vowels.) </li>

* <li>Failing that, it will loop left-to-right for an available digit. This is a last

* resort because the normal setMnemonic dislikes them.</li>

* <li> If that doesn't work, it doesn't assign a mnemonic. </li>

* </ol>

* As a special case, strings starting "sketchbook \u2192 " have that bit ignored

* because otherwise the Recent menu looks awful. However, the name <tt>"sketchbook \u2192

* Sketch"</tt>, for example, will have the 'S' of "Sketch" chosen, but the 's' of 'sketchbook

* will get underlined.

* No letter by an underscore will be assigned.

* Disabled on Mac, per Apple guidelines.

* <tt>menu</tt> may contain nulls.

* Author: George Bateman. Initial work Myer Nore.

* @param menu

* A menu, a list of menus or an array of menu items to set mnemonics for.

static public void setMenuMnemonics(JMenuItem... menu) {

if (Platform.isMacOS()) return;

if (menu.length == 0) return;

// The English is http://techbase.kde.org/Projects/Usability/HIG/Keyboard_Accelerators,

// made lowercase.

// Nothing but [a-z] except for '&' before mnemonics and regexes for changable text.

final String[] kdePreDefStrs = { "&file", "&new", "&open", "open&recent",

"&save", "save&as", "saveacop&y", "saveas&template", "savea&ll", "reloa&d",

"&print", "printpre&view", "&import", "e&xport", "&closefile",

"clos&eallfiles", "&quit", "&edit", "&undo", "re&do", "cu&t", "&copy",

"&paste", "&delete", "select&all", "dese&lect", "&find", "find&next",

"findpre&vious", "&replace", "&gotoline", "&view", "&newview",

"close&allviews", "&splitview", "&removeview", "splitter&orientation",

"&horizontal", "&vertical", "view&mode", "&fullscreenmode", "&zoom",

"zoom&in", "zoom&out", "zoomtopage&width", "zoomwhole&page", "zoom&factor",

"&insert", "&format", "&go", "&up", "&back", "&forward", "&home", "&go",

"&previouspage", "&nextpage", "&firstpage", "&lastpage", "read&updocument",

"read&downdocument", "&back", "&forward", "&gotopage", "&bookmarks",

"&addbookmark", "bookmark&tabsasfolder", "&editbookmarks",

"&newbookmarksfolder", "&tools", "&settings", "&toolbars",

"configure&shortcuts", "configuretool&bars", "&configure.*", "&help",

".+&handbook", "&whatsthis", "report&bug", "&aboutprocessing", "about&kde",

"&beenden", "&suchen", // de

"&preferncias", "&sair", // Preferências; pt

"&rechercher" }; // fr

Pattern[] kdePreDefPats = new Pattern[kdePreDefStrs.length];

for (int i = 0; i < kdePreDefStrs.length; i++) {

kdePreDefPats[i] = Pattern.compile(kdePreDefStrs[i].replace("&",""));

}

final Pattern nonAAlpha = Pattern.compile("[^A-Za-z]");

FontMetrics fmTmp = null;

for (JMenuItem m : menu) {

if (m != null) {

fmTmp = m.getFontMetrics(m.getFont());

break;

}

if (fmTmp == null) return; // All null menuitems; would fail.

final FontMetrics fm = fmTmp; // Hack for accessing variable in comparator.

final Comparator<Character> charComparator = new Comparator<Character>() {

char[] baddies = "qypgjaeiouQAEIOU".toCharArray();

public int compare(Character ch1, Character ch2) {

// Discriminates against descenders for readability, per MS

// Human Interface Guide, and vowels per MS and Gnome.

float w1 = fm.charWidth(ch1), w2 = fm.charWidth(ch2);

for (char bad : baddies) {

if (bad == ch1) w1 *= 0.66f;

if (bad == ch2) w2 *= 0.66f;

}

return (int)Math.signum(w2 - w1);

}

};

// Holds only [0-9a-z], not uppercase.

// Prevents X != x, so "Save" and "Save As" aren't both given 'a'.

final List<Character> taken = new ArrayList<Character>(menu.length);

char firstChar;

char[] cleanChars;

Character[] cleanCharas;

// METHOD 1: attempt to assign KDE defaults.

for (JMenuItem jmi : menu) {

if (jmi == null) continue;

if (jmi.getText() == null) continue;

jmi.setMnemonic(0); // Reset all mnemonics.

String asciiName = nonAAlpha.matcher(jmi.getText()).replaceAll("");

String lAsciiName = asciiName.toLowerCase();

for (int i = 0; i < kdePreDefStrs.length; i++) {

if (kdePreDefPats[i].matcher(lAsciiName).matches()) {

char mnem = asciiName.charAt(kdePreDefStrs[i].indexOf("&"));

jmi.setMnemonic(mnem);

jmi.setDisplayedMnemonicIndex(jmi.getText().indexOf(mnem));

taken.add((char)(mnem | 32)); // to lowercase

break;

}

// Where KDE defaults fail, use an algorithm.

algorithmicAssignment:

for (JMenuItem jmi : menu) {

if (jmi == null) continue;

if (jmi.getText() == null) continue;

if (jmi.getMnemonic() != 0) continue; // Already assigned.

// The string can't be made lower-case as that would spoil

// the width comparison.

String cleanString = jmi.getText();

if (cleanString.startsWith("sketchbook \u2192 "))

cleanString = cleanString.substring(13);

if (cleanString.length() == 0) continue;

// First, ban letters by underscores.

final List<Character> banned = new ArrayList<Character>();

for (int i = 0; i < cleanString.length(); i++) {

if (cleanString.charAt(i) == '_') {

if (i > 0)

banned.add(Character.toLowerCase(cleanString.charAt(i - 1)));

if (i + 1 < cleanString.length())

banned.add(Character.toLowerCase(cleanString.charAt(i + 1)));

}

// METHOD 2: Uppercase starts of words.

// Splitting into blocks of ASCII letters wouldn't work

// because there could be non-ASCII letters in a word.

for (String wd : cleanString.split("[^\\p{IsAlphabetic}]")) {

if (wd.length() == 0) continue;

firstChar = wd.charAt(0);

if (taken.contains(Character.toLowerCase(firstChar))) continue;

if (banned.contains(Character.toLowerCase(firstChar))) continue;

if ('A' <= firstChar && firstChar <= 'Z') {

jmi.setMnemonic(firstChar);

jmi.setDisplayedMnemonicIndex(jmi.getText().indexOf(firstChar));

taken.add((char)(firstChar | 32)); // tolowercase

continue algorithmicAssignment;

}

// METHOD 3: Lowercase starts of words.

for (String wd : cleanString.split("[^\\p{IsAlphabetic}]")) {

if (wd.length() == 0) continue;

firstChar = wd.charAt(0);

if (taken.contains(Character.toLowerCase(firstChar))) continue;

if (banned.contains(Character.toLowerCase(firstChar))) continue;

if ('a' <= firstChar && firstChar <= 'z') {

jmi.setMnemonic(firstChar);

jmi.setDisplayedMnemonicIndex(jmi.getText().indexOf(firstChar));

taken.add(firstChar); // is lowercase

continue algorithmicAssignment;

}

// METHOD 4: Second wide-enough ASCII letter.

cleanString = nonAAlpha.matcher(jmi.getText()).replaceAll("");

if (cleanString.length() >= 2) {

char ascii2nd = cleanString.charAt(1);

if (!taken.contains((char)(ascii2nd|32)) &&

!banned.contains((char)(ascii2nd|32)) &&

fm.charWidth('A') <= 2*fm.charWidth(ascii2nd)) {

jmi.setMnemonic(ascii2nd);

jmi.setDisplayedMnemonicIndex(jmi.getText().indexOf(ascii2nd));

taken.add((char)(ascii2nd|32));

continue algorithmicAssignment;

}

// METHOD 5: charComparator over all ASCII letters.

cleanChars = cleanString.toCharArray();

cleanCharas = new Character[cleanChars.length];

for (int i = 0; i < cleanChars.length; i++) {

cleanCharas[i] = new Character(cleanChars[i]);

}

Arrays.sort(cleanCharas, charComparator); // sorts in increasing order

for (char mnem : cleanCharas) {

if (taken.contains(Character.toLowerCase(mnem))) continue;

if (banned.contains(Character.toLowerCase(mnem))) continue;

// NB: setMnemonic(char) doesn't want [^A-Za-z]

jmi.setMnemonic(mnem);

jmi.setDisplayedMnemonicIndex(jmi.getText().indexOf(mnem));

taken.add(Character.toLowerCase(mnem));

continue algorithmicAssignment;

}

// METHOD 6: Digits as last resort.

for (char digit : jmi.getText().replaceAll("[^0-9]", "").toCharArray()) {

if (taken.contains(digit)) continue;

if (banned.contains(digit)) continue;

jmi.setMnemonic(KeyEvent.VK_0 + digit - '0');

// setDisplayedMnemonicIndex() unneeded: no case issues.

taken.add(digit);

continue algorithmicAssignment;

}

// Finally, RECURSION.

for (JMenuItem jmi : menu) {

if (jmi instanceof JMenu) setMenuMnemsInside((JMenu) jmi);

}

/**

* As setMenuMnemonics(JMenuItem...).

static public void setMenuMnemonics(JMenuBar menubar) {

JMenuItem[] items = new JMenuItem[menubar.getMenuCount()];

for (int i = 0; i < items.length; i++) {

items[i] = menubar.getMenu(i);

}

setMenuMnemonics(items);

}

/**

* As setMenuMnemonics(JMenuItem...).

static public void setMenuMnemonics(JPopupMenu menu) {

ArrayList<JMenuItem> items = new ArrayList<JMenuItem>();

for (Component c : menu.getComponents()) {

if (c instanceof JMenuItem) items.add((JMenuItem)c);

}

setMenuMnemonics(items.toArray(new JMenuItem[items.size()]));

}

/**

* Calls setMenuMnemonics(JMenuItem...) on the sub-elements only.

static public void setMenuMnemsInside(JMenu menu) {

JMenuItem[] items = new JMenuItem[menu.getItemCount()];

for (int i = 0; i < items.length; i++) {

items[i] = menu.getItem(i);

}

setMenuMnemonics(items);

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

static public Dimension getScreenSize() {

return awtToolkit.getScreenSize();

}

/**

* Return an Image object from inside the Processing 'lib' folder.

* Moved here so that Base can stay headless.

static public Image getLibImage(String filename) {

ImageIcon icon = getLibIcon(filename);

return (icon == null) ? null : icon.getImage();

}

/**

* Get an ImageIcon from the Processing 'lib' folder.

* @since 3.0a6

static public ImageIcon getLibIcon(String filename) {

File file = Platform.getContentFile("lib/" + filename);

if (!file.exists()) {

// System.err.println("does not exist: " + file);

return null;

}

return new ImageIcon(file.getAbsolutePath());

}

static public ImageIcon getIconX(File dir, String base) {

return getIconX(dir, base, 0);

}

/**

* Get an icon of the format base-NN.png where NN is the size, but if it's

* a hidpi display, get the NN*2 version automatically, sized at NN

static public ImageIcon getIconX(File dir, String base, int size) {

final int scale = Toolkit.highResDisplay() ? 2 : 1;

String filename = (size == 0) ?

(base + "-" + scale + "x.png") :

(base + "-" + (size*scale) + ".png");

// File file = Platform.getContentFile("lib/" + filename);

File file = new File(dir, filename);

if (!file.exists()) {

// System.err.println("does not exist: " + file);

return null;

}

ImageIcon outgoing = new ImageIcon(file.getAbsolutePath()) {

@Override

public int getIconWidth() {

return super.getIconWidth() / scale;

}

@Override

public int getIconHeight() {

return super.getIconHeight() / scale;

}

@Override

public synchronized void paintIcon(Component c, Graphics g, int x, int y) {

ImageObserver imageObserver = getImageObserver();

if (imageObserver == null) {

imageObserver = c;

}

g.drawImage(getImage(), x, y, getIconWidth(), getIconHeight(), imageObserver);

}

};

return outgoing;

}

/**

* Get an image icon with hi-dpi support. Pulls 1x or 2x versions of the

* file depending on the display type, but sizes them based on 1x.

static public ImageIcon getLibIconX(String base) {

return getLibIconX(base, 0);

}

static public ImageIcon getLibIconX(String base, int size) {

return getIconX(Platform.getContentFile("lib"), base, size);

}

static List<Image> iconImages;

// Deprecated version of the function, but can't get rid of it without

// breaking tools and modes (they'd only require a recompile, but they would

// no longer be backwards compatible.

static public void setIcon(Frame frame) {

setIcon((Window) frame);

}

/**

* Give this Frame the Processing icon set. Ignored on OS X, because they

* thought different and made this function set the minified image of the

* window, not the window icon for the dock or cmd-tab.

static public void setIcon(Window window) {

if (!Platform.isMacOS()) {

if (iconImages == null) {

iconImages = new ArrayList<Image>();

final int[] sizes = { 16, 32, 48, 64, 128, 256, 512 };

for (int sz : sizes) {

iconImages.add(Toolkit.getLibImage("icons/pde-" + sz + ".png"));

}

window.setIconImages(iconImages);

}

static public Shape createRoundRect(float x1, float y1, float x2, float y2,

float tl, float tr, float br, float bl) {

GeneralPath path = new GeneralPath();

// vertex(x1+tl, y1);

if (tr != 0) {

path.moveTo(x2-tr, y1);

path.quadTo(x2, y1, x2, y1+tr);

} else {

path.moveTo(x2, y1);

}

if (br != 0) {

path.lineTo(x2, y2-br);

path.quadTo(x2, y2, x2-br, y2);

} else {

path.lineTo(x2, y2);

}

if (bl != 0) {

path.lineTo(x1+bl, y2);

path.quadTo(x1, y2, x1, y2-bl);

} else {

path.lineTo(x1, y2);

}

if (tl != 0) {

path.lineTo(x1, y1+tl);

path.quadTo(x1, y1, x1+tl, y1);

} else {

path.lineTo(x1, y1);

}

path.closePath();

return path;

}

// someone needs to be slapped

//static KeyStroke closeWindowKeyStroke;

/**

* Return true if the key event was a Ctrl-W or an ESC,

* both indicators to close the window.

* Use as part of a keyPressed() event handler for frames.

static public boolean isCloseWindowEvent(KeyEvent e) {

if (closeWindowKeyStroke == null) {

int modifiers = Toolkit.getDefaultToolkit().getMenuShortcutKeyMask();

closeWindowKeyStroke = KeyStroke.getKeyStroke('W', modifiers);

}

return ((e.getKeyCode() == KeyEvent.VK_ESCAPE) ||

KeyStroke.getKeyStrokeForEvent(e).equals(closeWindowKeyStroke));

}

/**

* Registers key events for a Ctrl-W and ESC with an ActionListener

* that will take care of disposing the window.

static public void registerWindowCloseKeys(JRootPane root,

ActionListener disposer) {

KeyStroke stroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);

root.registerKeyboardAction(disposer, stroke,

JComponent.WHEN_IN_FOCUSED_WINDOW);

int modifiers = awtToolkit.getMenuShortcutKeyMask();

stroke = KeyStroke.getKeyStroke('W', modifiers);

root.registerKeyboardAction(disposer, stroke,

JComponent.WHEN_IN_FOCUSED_WINDOW);

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

static public void beep() {

awtToolkit.beep();

}

static public Clipboard getSystemClipboard() {

return awtToolkit.getSystemClipboard();

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

/**

* Handles scaling for high-res displays, also sets text anti-aliasing

* options to be far less ugly than the defaults.

* Moved to a utility function because it's used in several classes.

* @return a Graphics2D object, as a bit o sugar

static public Graphics2D prepareGraphics(Graphics g) {

Graphics2D g2 = (Graphics2D) g;

if (Toolkit.highResDisplay()) {

// scale everything 2x, will be scaled down when drawn to the screen

g2.scale(2, 2);

}

g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,

RenderingHints.VALUE_ANTIALIAS_ON);

g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,

RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

if (Toolkit.highResDisplay()) {

// Looks great on retina, not so great (with our font) on 1x

g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,

RenderingHints.VALUE_TEXT_ANTIALIAS_GASP);

}

return g2;

}

// /**

// * Prepare and offscreen image that's sized for this Component, 1x or 2x

// * depending on whether this is a retina display or not.

// * @param comp

// * @param image

// * @return

// */

// static public Image prepareOffscreen(Component comp, Image image) {

// Dimension size = comp.getSize();

// Image offscreen = image;

// if (image == null ||

// image.getWidth(null) != size.width ||

// image.getHeight(null) != size.height) {

// if (Toolkit.highResDisplay()) {

// offscreen = comp.createImage(size.width*2, size.height*2);

// } else {

// offscreen = comp.createImage(size.width, size.height);

// }

// return offscreen;

// }

// static final Color CLEAR_COLOR = new Color(0, true);

// static public void clearGraphics(Graphics g, int width, int height) {

// g.setColor(CLEAR_COLOR);

// g.fillRect(0, 0, width, height);

// }

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

static Boolean highResProp;

static public boolean highResDisplay() {

if (highResProp == null) {

highResProp = checkRetina();

}

return highResProp;

}

// This should probably be reset each time there's a display change.

// A 5-minute search didn't turn up any such event in the Java API.

// Also, should we use the Toolkit associated with the editor window?

static private boolean checkRetina() {

if (Platform.isMacOS()) {

GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment();

GraphicsDevice device = env.getDefaultScreenDevice();

try {

Field field = device.getClass().getDeclaredField("scale");

if (field != null) {

field.setAccessible(true);

Object scale = field.get(device);

if (scale instanceof Integer && ((Integer)scale).intValue() == 2) {

return true;

}

} catch (Exception ignore) { }

}

return false;

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

// static Font monoFont;

// static Font plainFont;

// static Font boldFont;

// static public Font getMonoFont(int size) {

// if (monoFont == null) {

// try {

// monoFont = createFont("DroidSansMono.ttf", size);

// } catch (Exception e) {

// monoFont = new Font("Monospaced", Font.PLAIN, size);

// }

// return monoFont;

// }

// static public Font getPlainFont(int size) {

// if (plainFont == null) {

// try {

// plainFont = createFont("DroidSans.ttf", size);

// } catch (Exception e) {

// plainFont = new Font("SansSerif", Font.PLAIN, size);

// }

// return plainFont;

// }

// static public Font getBoldFont(int size) {

// if (boldFont == null) {

// try {

// boldFont = createFont("DroidSans-Bold.ttf", size);

// } catch (Exception e) {

// boldFont = new Font("SansSerif", Font.BOLD, size);

// }

// return boldFont;

// }

static final char GREEK_SMALL_LETTER_ALPHA = '\u03B1'; // α

static final char GREEK_CAPITAL_LETTER_OMEGA = '\u03A9'; // ω

// Gets the plain (not bold, not italic) version of each

static private List<Font> getMonoFontList() {

GraphicsEnvironment ge =

GraphicsEnvironment.getLocalGraphicsEnvironment();

Font[] fonts = ge.getAllFonts();

ArrayList<Font> outgoing = new ArrayList<Font>();

// Using AffineTransform.getScaleInstance(100, 100) doesn't change sizes

FontRenderContext frc =

new FontRenderContext(new AffineTransform(),

Preferences.getBoolean("editor.antialias"),

true); // use fractional metrics

for (Font font : fonts) {

if (font.getStyle() == Font.PLAIN &&

font.canDisplay('i') && font.canDisplay('M') &&

font.canDisplay(' ') && font.canDisplay('.')) {

// The old method just returns 1 or 0, and using deriveFont(size)

// is overkill. It also causes deprecation warnings

// @SuppressWarnings("deprecation")

// FontMetrics fm = awtToolkit.getFontMetrics(font);

//FontMetrics fm = awtToolkit.getFontMetrics(font.deriveFont(24));

// System.out.println(fm.charWidth('i') + " " + fm.charWidth('M'));

// if (fm.charWidth('i') == fm.charWidth('M') &&

// fm.charWidth('M') == fm.charWidth(' ') &&

// fm.charWidth(' ') == fm.charWidth('.')) {

double w = font.getStringBounds(" ", frc).getWidth();

if (w == font.getStringBounds("i", frc).getWidth() &&

w == font.getStringBounds("M", frc).getWidth() &&

w == font.getStringBounds(".", frc).getWidth()) {

// //PApplet.printArray(font.getAvailableAttributes());

// Map<TextAttribute,?> attr = font.getAttributes();

// System.out.println(font.getFamily() + " > " + font.getName());

// System.out.println(font.getAttributes());

// System.out.println(" " + attr.get(TextAttribute.WEIGHT));

// System.out.println(" " + attr.get(TextAttribute.POSTURE));

outgoing.add(font);

// System.out.println(" good " + w);

}

return outgoing;

}

static public String[] getMonoFontFamilies() {

HashSet<String> families = new HashSet<String>();

for (Font font : getMonoFontList()) {

families.add(font.getFamily());

}

String[] names = families.toArray(new String[0]);

Arrays.sort(names);

return names;

}

static Font monoFont;

static Font monoBoldFont;

static Font sansFont;

static Font sansBoldFont;

static public String getMonoFontName() {

if (monoFont == null) {

getMonoFont(12, Font.PLAIN); // load a dummy version

}

return monoFont.getName();

}

static public Font getMonoFont(int size, int style) {

if (monoFont == null) {

try {

monoFont = createFont("SourceCodePro-Regular.ttf", size);

monoBoldFont = createFont("SourceCodePro-Bold.ttf", size);

// additional language constraints

if ("el".equals(Language.getLanguage())) {

if (!monoFont.canDisplay(GREEK_SMALL_LETTER_ALPHA) ||

!monoFont.canDisplay(GREEK_CAPITAL_LETTER_OMEGA)) {

monoFont = createFont("AnonymousPro-Regular.ttf", size);

monoBoldFont = createFont("AnonymousPro-Bold.ttf", size);

}

// https://github.com/processing/processing/issues/2886

String lang = Language.getLanguage();

if (Locale.CHINESE.getLanguage().equals(lang) ||

Locale.JAPANESE.getLanguage().equals(lang) ||

Locale.KOREAN.getLanguage().equals(lang)) {

sansFont = new Font("Monospaced", Font.PLAIN, size);

sansBoldFont = new Font("Monospaced", Font.BOLD, size);

}

} catch (Exception e) {

Messages.loge("Could not load mono font", e);

monoFont = new Font("Monospaced", Font.PLAIN, size);

monoBoldFont = new Font("Monospaced", Font.BOLD, size);

}

if (style == Font.BOLD) {

if (size == monoBoldFont.getSize()) {

return monoBoldFont;

} else {

return monoBoldFont.deriveFont((float) size);

}

} else {

if (size == monoFont.getSize()) {

return monoFont;

} else {

return monoFont.deriveFont((float) size);

}

static public Font getSansFont(int size, int style) {

if (sansFont == null) {

try {

sansFont = createFont("SourceSansPro-Regular.ttf", size);

sansBoldFont = createFont("SourceSansPro-Semibold.ttf", size);

// additional language constraints

if ("el".equals(Language.getLanguage())) {

if (!sansFont.canDisplay(GREEK_SMALL_LETTER_ALPHA) ||

!sansFont.canDisplay(GREEK_CAPITAL_LETTER_OMEGA)) {

sansFont = createFont("Carlito-Regular.ttf", size);

sansBoldFont = createFont("Carlito-Bold.ttf", size);

}

// https://github.com/processing/processing/issues/2886

String lang = Language.getLanguage();

if (Locale.CHINESE.getLanguage().equals(lang) ||

Locale.JAPANESE.getLanguage().equals(lang) ||

Locale.KOREAN.getLanguage().equals(lang)) {

sansFont = new Font("SansSerif", Font.PLAIN, size);

sansBoldFont = new Font("SansSerif", Font.BOLD, size);

}

} catch (Exception e) {

Messages.loge("Could not load sans font", e);

sansFont = new Font("SansSerif", Font.PLAIN, size);

sansBoldFont = new Font("SansSerif", Font.BOLD, size);

}

if (style == Font.BOLD) {

if (size == sansBoldFont.getSize()) {

return sansBoldFont;

} else {

return sansBoldFont.deriveFont((float) size);

}

} else {

if (size == sansFont.getSize()) {

return sansFont;

} else {

return sansFont.deriveFont((float) size);

}

/**

* Get a font from the JRE lib/fonts folder. Our default fonts are also

* installed there so that the monospace (and others) can be used by other

* font listing calls (i.e. it appears in the list of monospace fonts in

* the Preferences window, and can be used by HTMLEditorKit for WebFrame).

static private Font createFont(String filename, int size) throws IOException, FontFormatException {

// Can't use Base.getJavaHome(), because if we're not using our local JRE,

// we likely have bigger problems with how things are running.

File fontFile = new File(System.getProperty("java.home"), "lib/fonts/" + filename);

if (!fontFile.exists()) {

// if we're debugging from Eclipse, grab it from the work folder (user.dir is /app)

fontFile = new File(System.getProperty("user.dir"), "../build/shared/lib/fonts/" + filename);

}

if (!fontFile.exists()) {

// if we're debugging the new Java Mode from Eclipse, paths are different

fontFile = new File(System.getProperty("user.dir"), "../../shared/lib/fonts/" + filename);

}

if (!fontFile.exists()) {

String msg = "Could not find required fonts. ";

// This gets the JAVA_HOME for the *local* copy of the JRE installed with

// Processing. If it's not using the local JRE, it may be because of this

// launch4j bug: https://github.com/processing/processing/issues/3543

if (Util.containsNonASCII(Platform.getJavaHome().getAbsolutePath())) {

msg += "Trying moving Processing\n" +

"to a location with only ASCII characters in the path.";

} else {

msg += "Please reinstall Processing.";

}

Messages.showError("Font Sadness", msg, null);

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processing/app/src/processing/app/ui/Toolkit.java at master · 2php/processing · GitHub

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