rotated Xmb Fonts, by rotating as we draw

ChangeLog

@@ -1,6 +1,11 @@
 (Format: Year/Month/Day)
 Changes for 0.9.16:
 *06/04/04:
+   * Rotated Xmb Fonts (Simon)
+     - rotated when drawn. Probably not very efficient for 
+       parentrelative backgrounds. If it proves an issue, we should 
+       probably cache recently-drawn strings so we can just re-stipple.
+     XmbFontImp.hh/cc Text.hh
    * Rotated X Fonts again, plus minor external tab alignment fixes (Simon)
      - Still need to do XmbFonts. Most people probably load those 
        instead of XFont these days. Will need yet another approach...

src/FbTk/Text.hh

@@ -75,6 +75,31 @@ inline void translateCoords(Orientation orient, int &x, int &y, unsigned int w,
 
 }
 
+// still require w and h in ROT0 coords
+inline void untranslateCoords(Orientation orient, int &orig_x, int &orig_y, unsigned int w, unsigned int h) {
+
+    int x = orig_x;
+    int y = orig_y;
+
+    switch(orient) {
+    case ROT0:
+        break;
+    case ROT90:
+        orig_y = h - x;
+        orig_x = y;
+        break;
+    case ROT180:
+        orig_x = w - x;
+        orig_y = h - y;
+        break;
+    case ROT270:
+        orig_y = x;
+        orig_x = w - y;
+        break;
+    }
+
+}
+
 // When positioning an X11 box inside another area, we need to
 // relocate the x,y coordinates
 inline void translatePosition(Orientation orient, int &x, int &y, unsigned int w, unsigned int h, unsigned int bw) {

src/FbTk/XmbFontImp.cc

@@ -25,7 +25,8 @@
 
 #include "App.hh"
 #include "StringUtil.hh"
-#include "FbDrawable.hh"
+#include "FbPixmap.hh"
+#include "GContext.hh"
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -56,6 +57,8 @@
   #include <string.h>
 #endif
 
+#include <X11/Xlib.h>
+
 using namespace std;
 
 namespace {
@@ -183,24 +186,87 @@ bool XmbFontImp::load(const std::string &fontname) {
     return true;
 }
 
-void XmbFontImp::drawText(const FbDrawable &w, int screen, GC gc, const char *text,
+void XmbFontImp::drawText(const FbDrawable &d, int screen, GC main_gc, const char *text,
                           size_t len, int x, int y, FbTk::Orientation orient) const {
 
     if (m_fontset == 0)
         return;
 
+    if (orient == ROT0) {
+#ifdef X_HAVE_UTF8_STRING
+        if (m_utf8mode) {
+            Xutf8DrawString(d.display(), d.drawable(), m_fontset,
+                            main_gc, x, y,
+                            text, len);
+        } else
+#endif //X_HAVE_UTF8_STRING
+            {
+                XmbDrawString(d.display(), d.drawable(), m_fontset,
+                              main_gc, x, y,
+                              text, len);
+            }
+        return;
+    }
+
+    Display *dpy = App::instance()->display();
+    Window rootwin = DefaultRootWindow(dpy);
+
+    int xpos = x, ypos = y;
+    unsigned int w = d.width();
+    unsigned int h = d.height();
+
+    translateSize(orient, w, h);
+    untranslateCoords(orient, xpos, ypos, w, h);
+
+    // not straight forward, we actually draw it elsewhere, then rotate it
+    FbTk::FbPixmap canvas(rootwin, w, h, 1);
+ 
+    // create graphic context for our canvas
+    FbTk::GContext font_gc(canvas);
+    font_gc.setBackground(None);
+    font_gc.setForeground(None);
+
+    XFillRectangle(dpy, canvas.drawable(), font_gc.gc(), 0, 0, canvas.width(), canvas.height());
+    font_gc.setForeground(1);
+
+
 #ifdef X_HAVE_UTF8_STRING
     if (m_utf8mode) {
-        Xutf8DrawString(w.display(), w.drawable(), m_fontset,
-                        gc, x, y,
-                        text, len);
+        Xutf8DrawString(dpy, canvas.drawable(), m_fontset,
+                             font_gc.gc(), xpos, ypos,
+                             text, len);
     } else
 #endif //X_HAVE_UTF8_STRING
     {
-        XmbDrawString(w.display(), w.drawable(), m_fontset,
-                      gc, x, y,
-                      text, len);
+        XmbDrawString(dpy, canvas.drawable(), m_fontset,
+                           font_gc.gc(), xpos, ypos,
+                           text, len);
     }
+
+    canvas.rotate(orient);
+
+    GC my_gc = XCreateGC(dpy, d.drawable(), 0, 0);
+
+    XCopyGC(dpy, main_gc, GCForeground|GCBackground, my_gc);
+
+    // vertical or upside down
+
+    XSetFillStyle(dpy, my_gc, FillStippled);    
+
+    // vertical or upside down
+
+    XSetFillStyle(dpy, my_gc, FillStippled);
+
+    XSetStipple(dpy, my_gc, canvas.drawable());
+
+    XSetTSOrigin(dpy, my_gc, 0, 0);
+
+    XFillRectangle(dpy, d.drawable(), my_gc, 0, 0,
+                   canvas.width(),
+                   canvas.height());
+
+    XFreeGC(dpy, my_gc);
+    
 }
 
 unsigned int XmbFontImp::textWidth(const char * const text, unsigned int len) const {

src/FbTk/XmbFontImp.hh

@@ -43,6 +43,9 @@ public:
     int descent() const { return m_setextents ? m_setextents->max_ink_extent.height + m_setextents->max_ink_extent.y : 0; }
     bool loaded() const { return m_fontset != 0; }
     bool utf8() const { return m_utf8mode; }
+
+    bool validOrientation(FbTk::Orientation orient) { return true; }; // rotated on demand
+
 private:
     XFontSet m_fontset;
     XFontSetExtents *m_setextents;