Added the 'pictures' plugin

1 files changed, 249 insertions, 0 deletions

diff --git a/PLUGINS/src/pictures/player.c b/PLUGINS/src/pictures/player.c
new file mode 100644
index 00000000..9e07fc53
--- /dev/null
+++ b/PLUGINS/src/pictures/player.c
@@ -0,0 +1,249 @@
+/*
+ * player.c: A player for still pictures
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id: player.c 1.1 2008/01/13 11:29:27 kls Exp $
+ */
+
+#include "player.h"
+#include <vdr/remote.h>
+#include <vdr/tools.h>
+
+int SlideShowDelay = 3; // seconds
+
+cString HandleUnderscores(const char *s)
+{
+  // Skip anything before and including the first '_' and replace
+  // any remaining '_' with blanks:
+  const char *p = strchr(s, '_');
+  if (p) {
+     p++;
+     char buf[strlen(p) + 1];
+     strcpy(buf, p);
+     return strreplace(buf, '_', ' ');
+     }
+  return s;
+}
+
+// --- cPicturePlayer --------------------------------------------------------
+
+class cPicturePlayer : public cPlayer {
+private:
+  int size;
+  int length;
+  uchar *buffer;
+  virtual void Activate(bool On);
+public:
+  cPicturePlayer(void);
+  ~cPicturePlayer();
+  void SetPicture(const char *FileName);
+  };
+
+cPicturePlayer::cPicturePlayer(void)
+{
+  size = KILOBYTE(100); // will be adjusted automatically if files are larger
+  length = 0;
+  buffer = MALLOC(uchar, size);
+}
+
+cPicturePlayer::~cPicturePlayer()
+{
+  free(buffer);
+}
+
+void cPicturePlayer::Activate(bool On)
+{
+  if (length > 0)
+     DeviceStillPicture(buffer, length);
+}
+
+void cPicturePlayer::SetPicture(const char *FileName)
+{
+  int f = open(FileName, O_RDONLY);
+  if (f >= 0) {
+     for (;;) {
+         length = read(f, buffer, size);
+         if (length > 0) {
+            if (length >= size) {
+               size = size * 3 / 2;
+               buffer = (uchar *)realloc(buffer, size);
+               lseek(f, 0, SEEK_SET);
+               continue;
+               }
+            DeviceStillPicture(buffer, length);
+            }
+         else
+            LOG_ERROR_STR(FileName);
+         break;
+         }
+     close(f);
+     }
+  else
+     LOG_ERROR_STR(FileName);
+}
+
+// --- cPictureControl -------------------------------------------------------
+
+int cPictureControl::active = 0;
+cString cPictureControl::lastDisplayed;
+
+cPictureControl::cPictureControl(cPictureEntry *Pictures, const cPictureEntry *PictureEntry, bool SlideShow)
+:cControl(player = new cPicturePlayer)
+{
+  pictures = Pictures;
+  pictureEntry = PictureEntry;
+  osd = NULL;
+  lastPath = "/";
+  slideShow = SlideShow;
+  alwaysDisplayCaption = false;
+  NextPicture(slideShow && pictureEntry->IsDirectory() ? 1 : 0);
+  active++;
+}
+
+cPictureControl::~cPictureControl()
+{
+  active--;
+  delete osd;
+  delete player;
+  delete pictures;
+}
+
+void cPictureControl::NextPicture(int Direction)
+{
+  if (Direction) {
+     const cPictureEntry *pe = Direction > 0 ? pictureEntry->NextPicture() : pictureEntry->PrevPicture();
+     if (pe)
+        pictureEntry = pe;
+     }
+  if (pictureEntry) {
+     player->SetPicture(pictureEntry->Path());
+     DisplayCaption();
+     }
+}
+
+void cPictureControl::NextDirectory(int Direction)
+{
+  // This only works reliable if a directory contains only subdirectories or pictures, not both!
+  if (Direction) {
+     const cPictureEntry *pe = Direction > 0 ? pictureEntry->Parent()->Entries()->Last()->NextPicture() : pictureEntry->Parent()->Entries()->First()->PrevPicture();
+     if (pe && Direction < 0)
+        pe = pe->Parent()->Entries()->First();
+     if (pe && pe != pictureEntry) {
+        pictureEntry = pe;
+        player->SetPicture(pictureEntry->Path());
+        DisplayCaption();
+        }
+     }
+}
+
+static void DrawTextOutlined(cOsd *Osd, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, const cFont *Font)
+{
+  for (int dx = -1; dx <= 1; dx++) {
+      for (int dy = -1; dy <= 1; dy++) {
+          if (dx || dy)
+             Osd->DrawText(x + dx, y + dy, s, ColorBg, clrTransparent, Font);
+          }
+      }
+  Osd->DrawText(x, y, s, ColorFg, clrTransparent, Font);
+}
+
+void cPictureControl::DisplayCaption(void)
+{
+  bool Force = false;
+  cString Path = pictureEntry->Path();
+  lastDisplayed = Path + strlen(pictures->Name()) + 1;
+  const char *p = strrchr(Path, '/');
+  const char *q = strrchr(lastPath, '/');
+  if (p && q) {
+     int lp = p - Path;
+     int lq = q - lastPath;
+     if (lp != lq || strncmp(lastPath, Path, lp)) {
+        lastPath = Path;
+        Force = true;
+        }
+     }
+  if (!alwaysDisplayCaption && !Force) {
+     DELETENULL(osd);
+     return;
+     }
+  const cFont *Font = cFont::GetFont(fontOsd);
+  int w = cOsd::OsdWidth();
+  int h = 2 * Font->Height();
+  if (!osd) {
+     osd = cOsdProvider::NewOsd(cOsd::OsdLeft(), cOsd::OsdTop() + cOsd::OsdHeight() - h, OSD_LEVEL_SUBTITLES);
+     tArea Areas[] = { { 0, 0, w, h, 8 } };
+     if (Setup.AntiAlias && osd->CanHandleAreas(Areas, sizeof(Areas) / sizeof(tArea)) == oeOk)
+        osd->SetAreas(Areas, sizeof(Areas) / sizeof(tArea));
+     else {
+        tArea Areas[] = { { 0, 0, w, h, 4 } };
+        osd->SetAreas(Areas, sizeof(Areas) / sizeof(tArea));
+        }
+     }
+  const char *Year = pictureEntry->Parent()->Parent() ? pictureEntry->Parent()->Parent()->Name() : "";
+  cString Description = HandleUnderscores(pictureEntry->Parent()->Name());
+  osd->DrawRectangle(0, 0, w - 1, h - 1, clrTransparent);
+  DrawTextOutlined(osd, 0, 0, Description, clrWhite, clrBlack, Font);
+  DrawTextOutlined(osd, 0, h / 2, Year, clrWhite, clrBlack, Font);
+  struct stat sb;
+  if (stat(Path, &sb) == 0) {
+     cString Time = DayDateTime(sb.st_mtime);
+     DrawTextOutlined(osd, w - Font->Width(Time), h / 2, Time, clrWhite, clrBlack, Font);
+     }
+  p++;
+  Path.Truncate(-4); // don't display the ".mpg" extension
+  DrawTextOutlined(osd, w - Font->Width(p), 0, p, clrWhite, clrBlack, Font);
+  osd->Flush();
+}
+
+eOSState cPictureControl::ProcessKey(eKeys Key)
+{
+  switch (Key) {
+    case kUp:
+    case kPlay:   slideShowDelay.Set();
+                  slideShow = true;
+                  break;
+    case kDown:
+    case kPause:  slideShow = false;
+                  break;
+    case kLeft|k_Repeat:
+    case kLeft:   NextPicture(-1);
+                  slideShow = false;
+                  break;
+    case kRight|k_Repeat:
+    case kRight:  NextPicture(+1);
+                  slideShow = false;
+                  break;
+    case kOk:     if (osd && !alwaysDisplayCaption)
+                     DELETENULL(osd);
+                  else {
+                     alwaysDisplayCaption = !alwaysDisplayCaption;
+                     DisplayCaption();
+                     }
+                  break;
+    case kGreen:
+    case kPrev:   NextDirectory(-1);
+                  slideShow = false;
+                  break;
+    case kYellow:
+    case kNext:   NextDirectory(+1);
+                  slideShow = false;
+                  break;
+    case kBlue:
+    case kStop:   return osEnd;
+    case kBack:   slideShow = false;
+                  cRemote::CallPlugin(PLUGIN_NAME_I18N);
+                  break;
+    default: break;
+    }
+  if (slideShow && slideShowDelay.TimedOut()) {
+     NextPicture(+1);
+     slideShowDelay.Set(SlideShowDelay * 1000);
+     }
+  return osContinue;
+}
+
+const char *cPictureControl::LastDisplayed(void)
+{
+  return lastDisplayed;
+}