Progressbar support in skins classic and st:tng

[Christian Wieninger <cwieninger@xxxxxx>]

Hi,

many skins (like text2skin, enigmang, soppalusikka, ... ) support 
displaying a graphical progressbar when a text like "[|||  ]" appears in 
a menu item. Since runtime patching a font is not possible anymore I was 
wondering if also the skins classic and st:tng could support this. 
Here's a small patch (based on the sources of enigmang), that adds this 
functionality. Would be nice to have this in VDR core ;)

Regards,

Christian

diff -Nru vdr-1.5.11-orig/skinclassic.c vdr-1.5.11-progressbar/skinclassic.c
--- vdr-1.5.11-orig/skinclassic.c	2007-07-29 14:35:03.000000000 +0200
+++ vdr-1.5.11-progressbar/skinclassic.c	2007-11-12 18:46:54.000000000 +0100
@@ -295,13 +295,51 @@
   const cFont *font = cFont::GetFont(fontOsd);
   for (int i = 0; i < MaxTabs; i++) {
       const char *s = GetTabbedText(Text, i);
+      
       if (s) {
-         int xt = x0 + Tab(i);
-         osd->DrawText(xt, y, s, ColorFg, ColorBg, font, x1 - xt);
-         }
-      if (!Tab(i + 1))
-         break;
+	bool isprogressbar = false;
+	int now = 0, total = 0;
+	// check if progress bar: "[|||||||   ]"
+	if ((strlen(s) > 5 && s[0] == '[' && s[strlen(s) - 1] == ']')) {
+	  const char *p = s + 1;
+	  // update status
+	  isprogressbar = true;
+	  for (; *p != ']'; ++p) {
+	    // check if progressbar characters
+	    if (*p == ' ' || *p == '|') {
+	      // update counters
+	      ++total;
+	      if (*p == '|')
+		++now;
+	    } else {
+	      // wrong character detected; not a progressbar
+	      isprogressbar = false;
+	      break;
+	    }
+	  }
+	}
+	int xt = x0 + Tab(i);
+	if (isprogressbar) {
+	  // define x coordinates of progressbar
+	  int px0 = xt;
+	  int px1 = (Tab(i + 1)?Tab(i+1):x1) - 5;
+	  int px = px0 + max((int)((float) now * (float) (px1 - px0) / (float) total), 1);
+	  // define y coordinates of progressbar
+	  int py0 = y + 4;
+	  int py1 = y + lineHeight - 4;
+	  // draw background
+	  osd->DrawRectangle(px0, y, (Tab(i + 1)?Tab(i+1):x1) - 1, y + lineHeight - 1, ColorBg);
+	  // draw progressbar
+	  osd->DrawRectangle(px0,    py0, px,  py1, ColorFg);
+	  osd->DrawRectangle(px + 1, py0, px1, py0 + 1, ColorFg);
+	  osd->DrawRectangle(px + 1, py1 - 1, px1, py1, ColorFg);
+	  osd->DrawRectangle(px1 - 1, py0, px1, py1, ColorFg);	  
+	} else
+	  osd->DrawText(xt, y, s, ColorFg, ColorBg, font, x1 - xt);
       }
+      if (!Tab(i + 1))
+	break;
+  }
   SetEditableWidth(x1 - x0 - Tab(1));
 }
 
diff -Nru vdr-1.5.11-orig/skinsttng.c vdr-1.5.11-progressbar/skinsttng.c
--- vdr-1.5.11-orig/skinsttng.c	2007-06-17 15:51:56.000000000 +0200
+++ vdr-1.5.11-progressbar/skinsttng.c	2007-11-12 18:47:01.000000000 +0100
@@ -545,9 +545,46 @@
   for (int i = 0; i < MaxTabs; i++) {
       const char *s = GetTabbedText(Text, i);
       if (s) {
-         int xt = x3 + 5 + Tab(i);
-         osd->DrawText(xt, y, s, ColorFg, ColorBg, font, x4 - xt);
-         }
+	bool isprogressbar = false;
+	int now = 0, total = 0;
+	// check if progress bar: "[|||||||   ]"
+	if ((strlen(s) > 5 && s[0] == '[' && s[strlen(s) - 1] == ']')) {
+	  const char *p = s + 1;
+	  // update status
+	  isprogressbar = true;
+	  for (; *p != ']'; ++p) {
+	    // check if progressbar characters
+	    if (*p == ' ' || *p == '|') {
+	      // update counters
+	      ++total;
+	      if (*p == '|')
+		++now;
+	    } else {
+	      // wrong character detected; not a progressbar
+	      isprogressbar = false;
+	      break;
+	    }
+	  }
+	}
+	int xt = x3 + 5 + Tab(i);
+	if (isprogressbar) {
+	  // define x coordinates of progressbar
+	  int px0 = xt;
+	  int px1 = x3 + (Tab(i + 1)?Tab(i + 1):x4-x3-5) - 1;
+	  int px = px0 + max((int)((float) now * (float) (px1 - px0) / (float) total), 1);
+	  // define y coordinates of progressbar
+	  int py0 = y + 4;
+	  int py1 = y + lineHeight - 4;
+	  // draw background
+	  osd->DrawRectangle(px0, y, (Tab(i + 1)?Tab(i + 1):x4-x3-5) - 1, y + lineHeight - 1, ColorBg);
+	  // draw progressbar
+	  osd->DrawRectangle(px0,    py0, px,  py1, ColorFg);
+	  osd->DrawRectangle(px + 1, py0, px1, py0 + 1, ColorFg);
+	  osd->DrawRectangle(px + 1, py1 - 1, px1, py1, ColorFg);
+	  osd->DrawRectangle(px1 - 1, py0, px1, py1, ColorFg);	  
+	} else
+	  osd->DrawText(xt, y, s, ColorFg, ColorBg, font, x4 - xt);
+      }
       if (!Tab(i + 1))
          break;
       }

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