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319 lines
8.5 KiB
319 lines
8.5 KiB
import org.trinitydesktop.qt.*;
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public class ApplicationWindow extends TQMainWindow {
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private TQPrinter printer;
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private TQMultiLineEdit e;
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private String filename;
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private final String fileOpenText = "<img source=\"fileopen\"> "+
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"Click this button to open a <em>new file</em>. <br><br>"+
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"You can also select the <b>Open command</b> from the File menu.";
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private final String fileSaveText = "Click this button to save the file you are "+
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"editing. You will be prompted for a file name.\n\n"+
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"You can also select the Save command from the File menu.\n\n"+
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"Note that implementing this function is left as an exercise for the reader.";
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private final String filePrintText = "Click this button to print the file you "+
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"are editing.\n\n"+
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"You can also select the Print command from the File menu.";
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private final String[] fileopen = {
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" 16 13 5 1",
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". c #040404",
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"# c #808304",
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"a c None",
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"b c #f3f704",
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"c c #f3f7f3",
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"aaaaaaaaa...aaaa",
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"aaaaaaaa.aaa.a.a",
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"aaaaaaaaaaaaa..a",
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"a...aaaaaaaa...a",
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".bcb.......aaaaa",
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".cbcbcbcbc.aaaaa",
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".bcbcbcbcb.aaaaa",
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".cbcb...........",
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".bcb.#########.a",
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".cb.#########.aa",
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".b.#########.aaa",
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"..#########.aaaa",
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"...........aaaaa"
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};
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private final String[] filesave = {
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" 14 14 4 1",
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". c #040404",
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"# c #808304",
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"a c #bfc2bf",
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"b c None",
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"..............",
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".#.aaaaaaaa.a.",
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".#.aaaaaaaa...",
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".#.aaaaaaaa.#.",
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".#.aaaaaaaa.#.",
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".#.aaaaaaaa.#.",
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".#.aaaaaaaa.#.",
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".##........##.",
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".############.",
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".##.........#.",
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".##......aa.#.",
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".##......aa.#.",
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".##......aa.#.",
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"b............."
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};
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private final String[] fileprint = {
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" 16 14 6 1",
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". c #000000",
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"# c #848284",
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"a c #c6c3c6",
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"b c #ffff00",
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"c c #ffffff",
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"d c None",
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"ddddd.........dd",
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"dddd.cccccccc.dd",
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"dddd.c.....c.ddd",
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"ddd.cccccccc.ddd",
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"ddd.c.....c....d",
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"dd.cccccccc.a.a.",
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"d..........a.a..",
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".aaaaaaaaaa.a.a.",
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".............aa.",
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".aaaaaa###aa.a.d",
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".aaaaaabbbaa...d",
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".............a.d",
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"d.aaaaaaaaa.a.dd",
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"dd...........ddd"
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};
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public ApplicationWindow() {
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super(null, "example application main window", WDestructiveClose);
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// create a printer
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printer = new TQPrinter();
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// create user interface actions
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TQAction fileNewAction, fileOpenAction, fileSaveAction,
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fileSaveAsAction, filePrintAction, fileCloseAction,
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fileQuitAction;
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fileNewAction = new TQAction("New", "&New", new TQKeySequence(CTRL+Key_N), this, "new", false);
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connect(fileNewAction, TQ_SIGNAL("activated()"), this, TQ_SLOT("newDoc()"));
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fileOpenAction = new TQAction("Open File", new TQIconSet(new TQPixmap(fileopen)), "&Open", new TQKeySequence(CTRL+Key_O), this, "open", false);
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connect(fileOpenAction, TQ_SIGNAL("activated()"), this, TQ_SLOT("load()"));
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TQMimeSourceFactory.defaultFactory().setPixmap("fileopen", new TQPixmap(fileopen));
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fileOpenAction.setWhatsThis(fileOpenText);
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fileSaveAction = new TQAction("Save File", new TQIconSet(new TQPixmap(filesave)), "&Save", new TQKeySequence(CTRL+Key_S), this, "save", false);
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connect(fileSaveAction, TQ_SIGNAL("activated()"), this, TQ_SLOT("save()"));
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fileSaveAction.setWhatsThis(fileSaveText);
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fileSaveAsAction = new TQAction("Save File As", "Save &as", new TQKeySequence(), this, "save as", false);
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connect(fileSaveAsAction, TQ_SIGNAL("activated()"), this, TQ_SLOT("saveAs()"));
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fileSaveAsAction.setWhatsThis(fileSaveText);
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filePrintAction = new TQAction("Print File", new TQIconSet(new TQPixmap(fileprint)), "&Print", new TQKeySequence(CTRL+Key_P), this, "print", false);
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connect(filePrintAction, TQ_SIGNAL("activated()"), this, TQ_SLOT("print()"));
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filePrintAction.setWhatsThis(filePrintText);
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fileCloseAction = new TQAction("Close", "&Close", new TQKeySequence(CTRL+Key_W), this, "close", false);
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connect(fileCloseAction, TQ_SIGNAL("activated()"), this, TQ_SLOT("close()"));
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fileQuitAction = new TQAction("Quit", "&Quit", new TQKeySequence(CTRL+Key_Q), this, "quit", false);
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connect(fileQuitAction, TQ_SIGNAL("activated()"), tqApp(), TQ_SLOT("closeAllWindows()"));
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// populate a tool bar with some actions
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TQToolBar fileTools = new TQToolBar(this, "file operations");
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fileTools.setLabel(tr("File Operations"));
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fileOpenAction.addTo(fileTools);
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fileSaveAction.addTo(fileTools);
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filePrintAction.addTo(fileTools);
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TQWhatsThis.whatsThisButton(fileTools);
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// popuplate a menu with all actions
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TQPopupMenu file = new TQPopupMenu(this, "file");
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menuBar().insertItem("&File", file);
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fileNewAction.addTo(file);
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fileOpenAction.addTo(file);
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fileSaveAction.addTo(file);
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fileSaveAsAction.addTo(file);
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file.insertSeparator();
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filePrintAction.addTo(file);
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file.insertSeparator();
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fileCloseAction.addTo(file);
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fileQuitAction.addTo(file);
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// add a help menu
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TQPopupMenu help = new TQPopupMenu(this, "help");
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menuBar().insertSeparator();
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menuBar().insertItem("&Help", help);
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help.insertItem("&About", this, TQ_SLOT("about()"), new TQKeySequence(Key_F1), -1, -1);
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help.insertItem("About &Qt", this, TQ_SLOT("aboutTQt()"));
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help.insertSeparator();
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help.insertItem("What's &This", this, TQ_SLOT("whatsThis()"), new TQKeySequence(SHIFT+Key_F1), -1, -1);
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// create and define the central widget
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e = new TQMultiLineEdit(this, "editor");
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e.setFocus();
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setCentralWidget(e);
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statusBar().message("Ready", 2000);
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resize(450, 600);
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}
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private void newDoc() {
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ApplicationWindow ed = new ApplicationWindow();
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ed.show();
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}
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private void load() {
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String fn = TQFileDialog.getOpenFileName("", "", this);
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if (!(fn.length()==0))
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load(fn);
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else
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statusBar().message("Loading aborted", 2000);
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}
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private void load(String fileName) {
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TQFile f = new TQFile(fileName);
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if (!f.open(1))
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return;
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filename = fileName;
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e.setAutoUpdate(false);
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e.clear();
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TQTextStream t = new TQTextStream(f);
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while (!t.eof()) {
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String s = t.readLine();
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e.append(s);
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}
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f.close();
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e.setAutoUpdate(true);
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e.repaint();
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e.setEdited(false);
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setCaption(fileName);
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String s = "Loaded document "+fileName;
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statusBar().message(s, 2000);
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}
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private void save() {
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if (filename.length()==0) {
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saveAs();
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return;
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}
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String text = e.text();
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TQFile f = new TQFile(filename);
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if (!f.open(2)) {
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statusBar().message("Could not write to "+filename, 2000);
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return;
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}
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TQTextStream t = new TQTextStream(f);
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t.writeRawBytes(text, text.length());
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f.close();
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e.setEdited(false);
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setCaption(filename);
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statusBar().message("File "+filename+" saved", 2000);
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}
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private void saveAs() {
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String fn = TQFileDialog.getSaveFileName("", "", this);
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if (!(fn.length()==0)) {
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filename = fn;
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save();
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} else {
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statusBar().message("Saving aborted", 2000);
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}
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}
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private void print() {
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final int Margin = 10;
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int pageNo = 1;
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if (printer.setup(this)) { // printer dialog
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statusBar().message("Printing...");
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TQPainter p = new TQPainter();
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p.begin(printer); // paint on printer
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p.setFont(e.font());
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int yPos = 0; // y position for each line
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TQFontMetrics fm = p.fontMetrics();
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// need width/height of printer surface
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TQPaintDeviceMetrics metrics = new TQPaintDeviceMetrics(printer);
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for(int i = 0 ; i < e.numLines() ; i++) {
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if (Margin + yPos > metrics.height() - Margin) {
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String msg = "Printing (page ";
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msg += ++pageNo;
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msg += ")...";
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statusBar().message(msg);
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printer.newPage(); // no more room on this page
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yPos = 0; // back to top of page
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}
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p.drawText(Margin, Margin + yPos, metrics.width(),
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fm.lineSpacing(), ExpandTabs | DontClip, e.textLine(i));
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yPos = yPos + fm.lineSpacing();
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}
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p.end(); // send job to printer
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statusBar().message("Printing completed", 2000);
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} else {
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statusBar().message("Printing aborted", 2000);
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}
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}
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protected void closeEvent(TQCloseEvent ce) {
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if (!e.edited()) {
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ce.accept();
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return;
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}
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switch(TQMessageBox.information(this, "Qt Application Example",
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"The document has been changed since the last save.",
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"Save Now", "Cancel", "Leave Anyway", 0, 1)) {
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case 0:
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save();
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ce.accept();
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break;
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case 1:
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default: // just for sanity
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ce.ignore();
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break;
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case 2:
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ce.accept();
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break;
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}
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}
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private void about() {
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TQMessageBox.about(this, "Qt Application Example",
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"This example demonstrates simple use of "+
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"TQMainWindow,\nTQMenuBar and TQToolBar.");
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}
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private void aboutTQt() {
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TQMessageBox.aboutTQt(this, "Qt Application Example");
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}
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}
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