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vdr/osd.c

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/*
* osd.c: Abstract On Screen Display layer
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: osd.c 1.42 2003/05/03 14:46:38 kls Exp $
*/
#include "osd.h"
#include <string.h>
#include "device.h"
#include "i18n.h"
#include "status.h"
// --- cOsd ------------------------------------------------------------------
#ifdef DEBUG_OSD
WINDOW *cOsd::window = NULL;
int cOsd::colorPairs[MaxColorPairs] = { 0 };
#else
cOsdBase *cOsd::osd = NULL;
#endif
int cOsd::cols = 0;
int cOsd::rows = 0;
void cOsd::Initialize(void)
{
#if defined(DEBUG_OSD)
initscr();
start_color();
leaveok(stdscr, true);
#endif
}
void cOsd::Shutdown(void)
{
Close();
#if defined(DEBUG_OSD)
endwin();
#endif
}
#ifdef DEBUG_OSD
void cOsd::SetColor(eDvbColor colorFg, eDvbColor colorBg)
{
int color = (colorBg << 16) | colorFg | 0x80000000;
for (int i = 0; i < MaxColorPairs; i++) {
if (!colorPairs[i]) {
colorPairs[i] = color;
init_pair(i + 1, colorFg, colorBg);
wattrset(window, COLOR_PAIR(i + 1));
break;
}
else if (color == colorPairs[i]) {
wattrset(window, COLOR_PAIR(i + 1));
break;
}
}
}
#endif
cOsdBase *cOsd::OpenRaw(int x, int y)
{
#ifdef DEBUG_OSD
return NULL;
#else
return osd ? NULL : cDevice::PrimaryDevice()->NewOsd(x, y);
#endif
}
void cOsd::Open(int w, int h)
{
int d = (h < 0) ? Setup.OSDheight + h : 0;
h = abs(h);
cols = w;
rows = h;
#ifdef DEBUG_OSD
window = subwin(stdscr, h, w, d, (Setup.OSDwidth - w) / 2);
syncok(window, true);
#define B2C(b) (((b) * 1000) / 255)
#define SETCOLOR(n, r, g, b, o) init_color(n, B2C(r), B2C(g), B2C(b))
//XXX
SETCOLOR(clrBackground, 0x00, 0x00, 0x00, 127); // background 50% gray
SETCOLOR(clrBlack, 0x00, 0x00, 0x00, 255);
SETCOLOR(clrRed, 0xFC, 0x14, 0x14, 255);
SETCOLOR(clrGreen, 0x24, 0xFC, 0x24, 255);
SETCOLOR(clrYellow, 0xFC, 0xC0, 0x24, 255);
SETCOLOR(clrBlue, 0x00, 0x00, 0xFC, 255);
SETCOLOR(clrCyan, 0x00, 0xFC, 0xFC, 255);
SETCOLOR(clrMagenta, 0xB0, 0x00, 0xFC, 255);
SETCOLOR(clrWhite, 0xFC, 0xFC, 0xFC, 255);
#else
w *= charWidth;
h *= lineHeight;
d *= lineHeight;
int x = (720 - w + charWidth) / 2; //TODO PAL vs. NTSC???
int y = (576 - Setup.OSDheight * lineHeight) / 2 + d;
//XXX
osd = OpenRaw(x, y);
//XXX TODO this should be transferred to the places where the individual windows are requested (there's too much detailed knowledge here!)
if (h / lineHeight == 5) { //XXX channel display
osd->Create(0, 0, w, h, 4);
}
else if (h / lineHeight == 1) { //XXX info display
osd->Create(0, 0, w, h, 4);
}
else if (d == 0) { //XXX full menu
osd->Create(0, 0, w, lineHeight, 2);
osd->Create(0, lineHeight, w, (Setup.OSDheight - 3) * lineHeight, 2);
osd->AddColor(clrBackground);
osd->AddColor(clrCyan);
osd->AddColor(clrWhite);
osd->AddColor(clrBlack);
osd->Create(0, (Setup.OSDheight - 2) * lineHeight, w, 2 * lineHeight, 4);
}
else { //XXX progress display
/*XXX
osd->Create(0, 0, w, lineHeight, 1);
osd->Create(0, lineHeight, w, lineHeight, 2, false);
osd->Create(0, 2 * lineHeight, w, lineHeight, 1);
XXX*///XXX some pixels are not drawn correctly with lower bpp values
osd->Create(0, 0, w, h, 4);
}
#endif
}
void cOsd::Close(void)
{
#ifdef DEBUG_OSD
if (window) {
delwin(window);
window = 0;
}
#else
delete osd;
osd = NULL;
#endif
}
void cOsd::Clear(void)
{
#ifdef DEBUG_OSD
SetColor(clrBackground, clrBackground);
Fill(0, 0, cols, rows, clrBackground);
refresh();
#else
osd->Clear();
#endif
}
void cOsd::Fill(int x, int y, int w, int h, eDvbColor color)
{
if (x < 0) x = cols + x;
if (y < 0) y = rows + y;
#ifdef DEBUG_OSD
SetColor(color, color);
for (int r = 0; r < h; r++) {
wmove(window, y + r, x); // ncurses wants 'y' before 'x'!
whline(window, ' ', w);
}
wsyncup(window); // shouldn't be necessary because of 'syncok()', but w/o it doesn't work
#else
osd->Fill(x * charWidth, y * lineHeight, (x + w) * charWidth - 1, (y + h) * lineHeight - 1, color);
#endif
}
void cOsd::SetBitmap(int x, int y, const cBitmap &Bitmap)
{
#ifndef DEBUG_OSD
osd->SetBitmap(x, y, Bitmap);
#endif
}
void cOsd::ClrEol(int x, int y, eDvbColor color)
{
Fill(x, y, cols - x, 1, color);
}
int cOsd::CellWidth(void)
{
#ifdef DEBUG_OSD
return 1;
#else
return charWidth;
#endif
}
int cOsd::LineHeight(void)
{
#ifdef DEBUG_OSD
return 1;
#else
return lineHeight;
#endif
}
int cOsd::Width(unsigned char c)
{
#ifdef DEBUG_OSD
return 1;
#else
return osd->Width(c);
#endif
}
int cOsd::WidthInCells(const char *s)
{
#ifdef DEBUG_OSD
return strlen(s);
#else
return (osd->Width(s) + charWidth - 1) / charWidth;
#endif
}
eDvbFont cOsd::SetFont(eDvbFont Font)
{
#ifdef DEBUG_OSD
return Font;
#else
return osd->SetFont(Font);
#endif
}
void cOsd::Text(int x, int y, const char *s, eDvbColor colorFg, eDvbColor colorBg)
{
if (x < 0) x = cols + x;
if (y < 0) y = rows + y;
#ifdef DEBUG_OSD
SetColor(colorFg, colorBg);
wmove(window, y, x); // ncurses wants 'y' before 'x'!
waddnstr(window, s, cols - x);
#else
osd->Text(x * charWidth, y * lineHeight, s, colorFg, colorBg);
#endif
}
void cOsd::Flush(void)
{
#ifdef DEBUG_OSD
refresh();
#else
if (osd)
osd->Flush();
#endif
}
// --- cOsdItem --------------------------------------------------------------
cOsdItem::cOsdItem(eOSState State)
{
text = NULL;
offset = -1;
state = State;
fresh = false;
userColor = false;
fgColor = clrWhite;
bgColor = clrBackground;
}
cOsdItem::cOsdItem(const char *Text, eOSState State)
{
text = NULL;
offset = -1;
state = State;
fresh = false;
userColor = false;
fgColor = clrWhite;
bgColor = clrBackground;
SetText(Text);
}
cOsdItem::~cOsdItem()
{
free(text);
}
void cOsdItem::SetText(const char *Text, bool Copy)
{
free(text);
text = Copy ? strdup(Text) : (char *)Text; // text assumes ownership!
}
void cOsdItem::SetColor(eDvbColor FgColor, eDvbColor BgColor)
{
userColor = true;
fgColor = FgColor;
bgColor = BgColor;
}
void cOsdItem::Display(int Offset, eDvbColor FgColor, eDvbColor BgColor)
{
if (Offset < 0) {
FgColor = clrBlack;
BgColor = clrCyan;
}
fresh |= Offset >= 0;
if (Offset >= 0)
offset = Offset;
if (offset >= 0)
Interface->WriteText(0, offset + 2, text, userColor ? fgColor : FgColor, userColor ? bgColor : BgColor);
}
eOSState cOsdItem::ProcessKey(eKeys Key)
{
return Key == kOk ? state : osUnknown;
}
// --- cOsdMenu --------------------------------------------------------------
cOsdMenu::cOsdMenu(const char *Title, int c0, int c1, int c2, int c3, int c4)
{
isMenu = true;
digit = 0;
hasHotkeys = false;
visible = false;
title = NULL;
SetTitle(Title);
cols[0] = c0;
cols[1] = c1;
cols[2] = c2;
cols[3] = c3;
cols[4] = c4;
first = 0;
current = marked = -1;
subMenu = NULL;
helpRed = helpGreen = helpYellow = helpBlue = NULL;
status = NULL;
Interface->Open();
}
cOsdMenu::~cOsdMenu()
{
free(title);
delete subMenu;
free(status);
Interface->Clear();
Interface->Close();
}
const char *cOsdMenu::hk(const char *s)
{
static char buffer[64];
if (s && hasHotkeys) {
if (digit == 0 && '1' <= *s && *s <= '9' && *(s + 1) == ' ')
digit = -1; // prevents automatic hotkeys - input already has them
if (digit >= 0) {
digit++;
snprintf(buffer, sizeof(buffer), " %c %s", (digit < 10) ? '0' + digit : ' ' , s);
s = buffer;
}
}
return s;
}
void cOsdMenu::SetHasHotkeys(void)
{
hasHotkeys = true;
digit = 0;
}
void cOsdMenu::SetStatus(const char *s)
{
free(status);
status = s ? strdup(s) : NULL;
if (visible)
Interface->Status(status);
}
void cOsdMenu::SetTitle(const char *Title, bool ShowDate)
{
free(title);
if (ShowDate)
asprintf(&title, "%s\t%s", Title, DayDateTime(time(NULL)));
else
title = strdup(Title);
}
void cOsdMenu::SetHelp(const char *Red, const char *Green, const char *Yellow, const char *Blue)
{
// strings are NOT copied - must be constants!!!
helpRed = Red;
helpGreen = Green;
helpYellow = Yellow;
helpBlue = Blue;
if (visible)
Interface->Help(helpRed, helpGreen, helpYellow, helpBlue);
}
void cOsdMenu::Del(int Index)
{
cList<cOsdItem>::Del(Get(Index));
if (current == Count())
current--;
if (Index == first && first > 0)
first--;
}
void cOsdMenu::Add(cOsdItem *Item, bool Current, cOsdItem *After)
{
cList<cOsdItem>::Add(Item, After);
if (Current)
current = Item->Index();
}
void cOsdMenu::Ins(cOsdItem *Item, bool Current, cOsdItem *Before)
{
cList<cOsdItem>::Ins(Item, Before);
if (Current)
current = Item->Index();
}
void cOsdMenu::Display(void)
{
if (subMenu) {
subMenu->Display();
return;
}
visible = true;
Interface->Clear();
Interface->SetCols(cols);
Interface->Title(title);
Interface->Help(helpRed, helpGreen, helpYellow, helpBlue);
int count = Count();
if (count > 0) {
for (int i = 0; i < count; i++) {
cOsdItem *item = Get(i);
if (item)
cStatus::MsgOsdItem(item->Text(), i);
}
if (current < 0)
current = 0; // just for safety - there HAS to be a current item!
int n = 0;
if (current - first >= MAXOSDITEMS) {
first = current - MAXOSDITEMS / 2;
if (first + MAXOSDITEMS > count)
first = count - MAXOSDITEMS;
if (first < 0)
first = 0;
}
for (int i = first; i < count; i++) {
cOsdItem *item = Get(i);
if (item) {
item->Display(i - first, i == current ? clrBlack : clrWhite, i == current ? clrCyan : clrBackground);
if (i == current)
cStatus::MsgOsdCurrentItem(item->Text());
}
if (++n == MAXOSDITEMS) //TODO get this from Interface!!!
break;
}
}
if (!isempty(status))
Interface->Status(status);
}
void cOsdMenu::SetCurrent(cOsdItem *Item)
{
current = Item ? Item->Index() : -1;
}
void cOsdMenu::RefreshCurrent(void)
{
cOsdItem *item = Get(current);
if (item)
item->Set();
}
void cOsdMenu::DisplayCurrent(bool Current)
{
cOsdItem *item = Get(current);
if (item) {
item->Display(current - first, Current ? clrBlack : clrWhite, Current ? clrCyan : clrBackground);
if (Current)
cStatus::MsgOsdCurrentItem(item->Text());
}
}
void cOsdMenu::Clear(void)
{
first = 0;
current = marked = -1;
cList<cOsdItem>::Clear();
}
bool cOsdMenu::SpecialItem(int idx)
{
cOsdItem *item = Get(idx);
return item && item->HasUserColor();
}
void cOsdMenu::CursorUp(void)
{
if (current > 0) {
int tmpCurrent = current;
while (--tmpCurrent >= 0 && SpecialItem(tmpCurrent));
if (tmpCurrent < 0)
return;
if (tmpCurrent >= first)
DisplayCurrent(false);
current = tmpCurrent;
if (current < first) {
first = first > MAXOSDITEMS - 1 ? first - (MAXOSDITEMS - 1) : 0;
if (Setup.MenuScrollPage)
current = SpecialItem(first) ? first + 1 : first;
Display();
}
else
DisplayCurrent(true);
}
}
void cOsdMenu::CursorDown(void)
{
int last = Count() - 1;
int lastOnScreen = first + MAXOSDITEMS - 1;
if (current < last) {
int tmpCurrent = current;
while (++tmpCurrent <= last && SpecialItem(tmpCurrent));
if (tmpCurrent > last)
return;
if (tmpCurrent <= lastOnScreen)
DisplayCurrent(false);
current = tmpCurrent;
if (current > lastOnScreen) {
first += MAXOSDITEMS - 1;
lastOnScreen = first + MAXOSDITEMS - 1;
if (lastOnScreen > last) {
first = last - (MAXOSDITEMS - 1);
lastOnScreen = last;
}
if (Setup.MenuScrollPage)
current = SpecialItem(lastOnScreen) ? lastOnScreen - 1 : lastOnScreen;
Display();
}
else
DisplayCurrent(true);
}
}
void cOsdMenu::PageUp(void)
{
current -= MAXOSDITEMS;
first -= MAXOSDITEMS;
if (first < 0)
first = current = 0;
if (SpecialItem(current)) {
current -= (current > 0) ? 1 : -1;
first = min(first, current - 1);
}
Display();
DisplayCurrent(true);
}
void cOsdMenu::PageDown(void)
{
current += MAXOSDITEMS;
first += MAXOSDITEMS;
if (current > Count() - 1) {
current = Count() - 1;
first = max(0, Count() - MAXOSDITEMS);
}
if (SpecialItem(current)) {
current += (current < Count() - 1) ? 1 : -1;
first = max(first, current - MAXOSDITEMS);
}
Display();
DisplayCurrent(true);
}
void cOsdMenu::Mark(void)
{
if (Count() && marked < 0) {
marked = current;
SetStatus(tr("Up/Dn for new location - OK to move"));
}
}
eOSState cOsdMenu::HotKey(eKeys Key)
{
for (cOsdItem *item = First(); item; item = Next(item)) {
const char *s = item->Text();
if (s && (s = skipspace(s)) != NULL) {
if (*s == Key - k1 + '1') {
current = item->Index();
cRemote::Put(kOk, true);
break;
}
}
}
return osContinue;
}
eOSState cOsdMenu::AddSubMenu(cOsdMenu *SubMenu)
{
delete subMenu;
subMenu = SubMenu;
subMenu->Display();
return osContinue; // convenience return value
}
eOSState cOsdMenu::CloseSubMenu()
{
delete subMenu;
subMenu = NULL;
RefreshCurrent();
Display();
return osContinue; // convenience return value
}
eOSState cOsdMenu::ProcessKey(eKeys Key)
{
if (subMenu) {
eOSState state = subMenu->ProcessKey(Key);
if (state == osBack)
return CloseSubMenu();
return state;
}
cOsdItem *item = Get(current);
if (marked < 0 && item) {
eOSState state = item->ProcessKey(Key);
if (state != osUnknown)
return state;
}
switch (Key) {
case k1...k9: return hasHotkeys ? HotKey(Key) : osUnknown;
case kUp|k_Repeat:
case kUp: CursorUp(); break;
case kDown|k_Repeat:
case kDown: CursorDown(); break;
case kLeft|k_Repeat:
case kLeft: PageUp(); break;
case kRight|k_Repeat:
case kRight: PageDown(); break;
case kBack: return osBack;
case kOk: if (marked >= 0) {
SetStatus(NULL);
if (marked != current)
Move(marked, current);
marked = -1;
break;
}
// else run into default
default: if (marked < 0)
return osUnknown;
}
return osContinue;
}
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