Migrating to new directory structure adopted from the RealVNC's source tree. More changes will follow.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@590 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/unix/tx/TXLabel.h b/unix/tx/TXLabel.h
new file mode 100644
index 0000000..3d5200d
--- /dev/null
+++ b/unix/tx/TXLabel.h
@@ -0,0 +1,126 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ */
+//
+// TXLabel.h
+//
+// An TXLabel allows you to put up multiline text in a window with various
+// alignments. The label must be big enough to contain the text - if not then
+// it will be resized appropriately.
+//
+
+#ifndef __TXLABEL_H__
+#define __TXLABEL_H__
+
+#include <stdlib.h>
+#include "TXWindow.h"
+#include <rfb/util.h>
+
+class TXLabel : public TXWindow, public TXEventHandler {
+public:
+ enum HAlign { left, centre, right };
+ enum VAlign { top, middle, bottom };
+
+ TXLabel(Display* dpy_, const char* text_, TXWindow* parent_=0,
+ int w=1, int h=1, HAlign ha=centre, VAlign va=middle)
+ : TXWindow(dpy_, w, h, parent_), lineSpacing(2), lines(0),
+ halign(ha), valign(va)
+ {
+ setEventHandler(this);
+ setText(text_);
+ addEventMask(ExposureMask);
+ }
+
+ // setText() changes the text in the label.
+ void setText(const char* text_) {
+ text.buf = rfb::strDup(text_);
+ lines = 0;
+ int lineStart = 0;
+ int textWidth = 0;
+ int i = -1;
+ do {
+ i++;
+ if (text.buf[i] == '\n' || text.buf[i] == 0) {
+ int tw = XTextWidth(defaultFS, &text.buf[lineStart], i-lineStart);
+ if (tw > textWidth) textWidth = tw;
+ lineStart = i+1;
+ lines++;
+ }
+ } while (text.buf[i] != 0);
+ int textHeight = ((defaultFS->ascent + defaultFS->descent + lineSpacing)
+ * lines);
+ int newWidth = __rfbmax(width(), textWidth + xPad*2);
+ int newHeight = __rfbmax(height(), textHeight + yPad*2);
+ if (width() < newWidth || height() < newHeight) {
+ resize(newWidth, newHeight);
+ }
+ invalidate();
+ }
+
+private:
+ int xOffset(int textWidth) {
+ switch (halign) {
+ case left: return xPad;
+ case right: return width() - xPad - textWidth;
+ default: return (width() - textWidth) / 2;
+ }
+ }
+
+ int yOffset(int lineNum) {
+ int textHeight = ((defaultFS->ascent + defaultFS->descent + lineSpacing)
+ * lines);
+ int lineOffset = ((defaultFS->ascent + defaultFS->descent + lineSpacing)
+ * lineNum + defaultFS->ascent);
+ switch (valign) {
+ case top: return yPad + lineOffset;
+ case bottom: return height() - yPad - textHeight + lineOffset;
+ default: return (height() - textHeight) / 2 + lineOffset;
+ }
+ }
+
+ void paint() {
+ int lineNum = 0;
+ int lineStart = 0;
+ int i = -1;
+ do {
+ i++;
+ if (text.buf[i] == '\n' || text.buf[i] == 0) {
+ int tw = XTextWidth(defaultFS, &text.buf[lineStart], i-lineStart);
+ XDrawString(dpy, win(), defaultGC, xOffset(tw), yOffset(lineNum),
+ &text.buf[lineStart], i-lineStart);
+ lineStart = i+1;
+ lineNum++;
+ }
+ } while (text.buf[i] != 0);
+ }
+
+ virtual void handleEvent(TXWindow* w, XEvent* ev) {
+ switch (ev->type) {
+ case Expose:
+ paint();
+ break;
+ }
+ }
+
+ int lineSpacing;
+ rfb::CharArray text;
+ int lines;
+ HAlign halign;
+ VAlign valign;
+};
+
+#endif