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/*
* 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;
}
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