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vdr/osd.h

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/*
* osd.h: Abstract On Screen Display layer
*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
*
* $Id: osd.h 1.31 2002/05/18 14:00:15 kls Exp $
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*/
#ifndef __OSD_H
#define __OSD_H
#if defined(DEBUG_OSD) || defined(REMOTE_KBD)
#include <ncurses.h>
#endif
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#include "config.h"
#include "dvbosd.h"
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#include "interface.h"
#include "osdbase.h"
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#include "tools.h"
#define MAXOSDITEMS (Setup.OSDheight - 4)
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enum eOSState { osUnknown,
osMenu,
osContinue,
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osSchedule,
osChannels,
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osTimers,
osRecordings,
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osPlugin,
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osSetup,
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osCommands,
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osRecord,
osReplay,
osStopRecord,
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osStopReplay,
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osCancelEdit,
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osSwitchDvb,
osBack,
osEnd,
os_User, // the following values can be used locally
osUser1,
osUser2,
osUser3,
osUser4,
osUser5,
osUser6,
osUser7,
osUser8,
osUser9,
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osUser10,
};
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class cOsd {
private:
enum { charWidth = 12, // average character width
lineHeight = 27 // smallest text height
};
#ifdef DEBUG_OSD
static WINDOW *window;
enum { MaxColorPairs = 16 };
static int colorPairs[MaxColorPairs];
static void SetColor(eDvbColor colorFg, eDvbColor colorBg = clrBackground);
#else
static cDvbOsd *osd;
#endif
static int cols, rows;
public:
static void Initialize(void);
static void Shutdown(void);
static void Open(int w, int h);
static void Close(void);
static void Clear(void);
static void Fill(int x, int y, int w, int h, eDvbColor color = clrBackground);
static void SetBitmap(int x, int y, const cBitmap &Bitmap);
static void ClrEol(int x, int y, eDvbColor color = clrBackground);
static int CellWidth(void);
static int LineHeight(void);
static int Width(unsigned char c);
static int WidthInCells(const char *s);
static eDvbFont SetFont(eDvbFont Font);
static void Text(int x, int y, const char *s, eDvbColor colorFg = clrWhite, eDvbColor colorBg = clrBackground);
static void Flush(void);
};
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class cOsdItem : public cListObject {
private:
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const char *text;
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int offset;
eOSState state;
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protected:
bool fresh;
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bool userColor;
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eDvbColor fgColor, bgColor;
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public:
cOsdItem(eOSState State = osUnknown);
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cOsdItem(const char *Text, eOSState State = osUnknown);
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virtual ~cOsdItem();
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bool HasUserColor(void) { return userColor; }
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void SetText(const char *Text, bool Copy = true);
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void SetColor(eDvbColor FgColor, eDvbColor BgColor = clrBackground);
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const char *Text(void) { return text; }
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virtual void Display(int Offset = -1, eDvbColor FgColor = clrWhite, eDvbColor BgColor = clrBackground);
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virtual void Set(void) {}
virtual eOSState ProcessKey(eKeys Key);
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};
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class cOsdObject {
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protected:
bool needsFastResponse;
public:
cOsdObject(bool FastResponse = false) { needsFastResponse = FastResponse; }
virtual ~cOsdObject() {}
int Width(void) { return Interface->Width(); }
int Height(void) { return Interface->Height(); }
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bool NeedsFastResponse(void) { return needsFastResponse; }
virtual eOSState ProcessKey(eKeys Key) = 0;
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};
class cOsdMenu : public cOsdObject, public cList<cOsdItem> {
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private:
char *title;
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int cols[cInterface::MaxCols];
int first, current, marked;
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cOsdMenu *subMenu;
const char *helpRed, *helpGreen, *helpYellow, *helpBlue;
const char *status;
int digit;
bool hasHotkeys;
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protected:
bool visible;
const char *hk(const char *s);
void SetHasHotkeys(void);
virtual void Clear(void);
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bool SpecialItem(int idx);
void SetCurrent(cOsdItem *Item);
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void RefreshCurrent(void);
void DisplayCurrent(bool Current);
void CursorUp(void);
void CursorDown(void);
void PageUp(void);
void PageDown(void);
void Mark(void);
eOSState HotKey(eKeys Key);
eOSState AddSubMenu(cOsdMenu *SubMenu);
bool HasSubMenu(void) { return subMenu; }
void SetStatus(const char *s);
void SetTitle(const char *Title, bool ShowDate = true);
void SetHelp(const char *Red, const char *Green = NULL, const char *Yellow = NULL, const char *Blue = NULL);
virtual void Del(int Index);
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public:
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cOsdMenu(const char *Title, int c0 = 0, int c1 = 0, int c2 = 0, int c3 = 0, int c4 = 0);
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virtual ~cOsdMenu();
int Current(void) { return current; }
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void Add(cOsdItem *Item, bool Current = false, cOsdItem *After = NULL);
void Ins(cOsdItem *Item, bool Current = false, cOsdItem *Before = NULL);
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void Display(void);
virtual eOSState ProcessKey(eKeys Key);
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};
#endif //__OSD_H