mirror of
https://github.com/VDR4Arch/vdr.git
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457 lines
12 KiB
C
457 lines
12 KiB
C
/*
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* interface.c: Abstract user interface layer
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: interface.c 1.66 2003/10/24 15:48:00 kls Exp $
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*/
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#include "interface.h"
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#include <ctype.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "i18n.h"
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#include "osd.h"
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#include "status.h"
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cInterface *Interface = NULL;
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cInterface::cInterface(int SVDRPport)
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{
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open = 0;
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cols[0] = 0;
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width = height = 0;
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interrupted = false;
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SVDRP = NULL;
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if (SVDRPport)
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SVDRP = new cSVDRP(SVDRPport);
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}
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cInterface::~cInterface()
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{
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delete SVDRP;
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}
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void cInterface::Open(int NumCols, int NumLines)
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{
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if (!open++) {
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if (NumCols == 0)
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NumCols = Setup.OSDwidth;
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if (NumLines == 0)
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NumLines = Setup.OSDheight;
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cOsd::Open(width = NumCols, height = NumLines);
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}
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}
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void cInterface::Close(void)
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{
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if (open == 1)
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Clear();
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if (!--open) {
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cOsd::Close();
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width = height = 0;
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}
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}
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eKeys cInterface::GetKey(bool Wait)
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{
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if (!cRemote::HasKeys())
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Flush();
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if (SVDRP) {
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if (SVDRP->Process())
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Wait = false;
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if (!open) {
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char *message = SVDRP->GetMessage();
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if (message) {
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Info(message);
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free(message);
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}
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}
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}
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return cRemote::Get(Wait ? 1000 : 10);
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}
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eKeys cInterface::Wait(int Seconds, bool KeepChar)
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{
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if (Seconds == 0)
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Seconds = Setup.OSDMessageTime;
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Flush();
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eKeys Key = kNone;
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time_t timeout = time(NULL) + Seconds;
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for (;;) {
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Key = GetKey();
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if ((Key != kNone && (RAWKEY(Key) != kOk || RAWKEY(Key) == Key)) || time(NULL) > timeout || interrupted)
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break;
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}
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if (KeepChar && ISRAWKEY(Key))
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cRemote::Put(Key);
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interrupted = false;
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return Key;
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}
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void cInterface::Clear(void)
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{
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if (open)
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cOsd::Clear();
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cStatus::MsgOsdClear();
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}
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void cInterface::ClearEol(int x, int y, eDvbColor Color)
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{
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if (open)
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cOsd::ClrEol(x, y, Color);
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}
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void cInterface::Fill(int x, int y, int w, int h, eDvbColor Color)
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{
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if (open)
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cOsd::Fill(x, y, w, h, Color);
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}
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void cInterface::SetBitmap(int x, int y, const cBitmap &Bitmap)
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{
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if (open)
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cOsd::SetBitmap(x, y, Bitmap);
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}
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void cInterface::Flush(void)
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{
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if (open)
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cOsd::Flush();
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}
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void cInterface::SetCols(int *c)
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{
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for (int i = 0; i < MaxCols; i++) {
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cols[i] = *c++;
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if (cols[i] == 0)
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break;
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}
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}
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eDvbFont cInterface::SetFont(eDvbFont Font)
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{
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return cOsd::SetFont(Font);
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}
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char *cInterface::WrapText(const char *Text, int Width, int *Height)
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{
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// Wraps the Text to make it fit into the area defined by the given Width
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// (which is given in character cells).
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// The actual number of lines resulting from this operation is returned in
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// Height.
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// The returned string is newly created on the heap and the caller
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// is responsible for deleting it once it is no longer used.
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// Wrapping is done by inserting the necessary number of newline
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// characters into the string.
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int Lines = 1;
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char *t = strdup(Text);
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char *Blank = NULL;
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char *Delim = NULL;
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int w = 0;
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Width *= cOsd::CellWidth();
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while (*t && t[strlen(t) - 1] == '\n')
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t[strlen(t) - 1] = 0; // skips trailing newlines
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for (char *p = t; *p; ) {
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if (*p == '|')
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*p = '\n';
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if (*p == '\n') {
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Lines++;
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w = 0;
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Blank = Delim = NULL;
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p++;
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continue;
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}
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else if (isspace(*p))
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Blank = p;
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int cw = cOsd::Width(*p);
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if (w + cw > Width) {
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if (Blank) {
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*Blank = '\n';
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p = Blank;
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continue;
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}
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else {
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// Here's the ugly part, where we don't have any whitespace to
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// punch in a newline, so we need to make room for it:
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if (Delim)
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p = Delim + 1; // let's fall back to the most recent delimiter
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char *s = MALLOC(char, strlen(t) + 2); // The additional '\n' plus the terminating '\0'
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int l = p - t;
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strncpy(s, t, l);
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s[l] = '\n';
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strcpy(s + l + 1, p);
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free(t);
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t = s;
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p = t + l;
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continue;
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}
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}
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else
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w += cw;
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if (strchr("-.,:;!?_", *p)) {
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Delim = p;
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Blank = NULL;
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}
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p++;
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}
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*Height = Lines;
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return t;
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}
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void cInterface::Write(int x, int y, const char *s, eDvbColor FgColor, eDvbColor BgColor)
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{
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if (open)
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cOsd::Text(x, y, s, FgColor, BgColor);
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}
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void cInterface::WriteText(int x, int y, const char *s, eDvbColor FgColor, eDvbColor BgColor)
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{
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if (open) {
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ClearEol(x, y, BgColor);
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int col = 0;
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for (;;) {
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const char *t = strchr(s, '\t');
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const char *p = s;
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char buf[1000];
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if (t && col < MaxCols && cols[col] > 0) {
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unsigned int n = t - s;
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if (n >= sizeof(buf))
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n = sizeof(buf) - 1;
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strncpy(buf, s, n);
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buf[n] = 0;
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p = buf;
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s = t + 1;
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}
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Write(x, y, p, FgColor, BgColor);
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if (p == s)
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break;
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x += cols[col++];
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}
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}
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}
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void cInterface::Title(const char *s)
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{
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ClearEol(0, 0, clrCyan);
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const char *t = strchr(s, '\t');
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if (t) {
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char buffer[Width() + 1];
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unsigned int n = t - s;
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if (n >= sizeof(buffer))
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n = sizeof(buffer) - 1;
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strn0cpy(buffer, s, n + 1);
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Write(1, 0, buffer, clrBlack, clrCyan);
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t++;
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Write(-(cOsd::WidthInCells(t) + 1), 0, t, clrBlack, clrCyan);
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}
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else {
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int x = (Width() - strlen(s)) / 2;
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if (x < 0)
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x = 0;
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Write(x, 0, s, clrBlack, clrCyan);
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}
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cStatus::MsgOsdTitle(s);
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}
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void cInterface::Status(const char *s, eDvbColor FgColor, eDvbColor BgColor)
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{
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int Line = (abs(height) == 1) ? 0 : -2;
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ClearEol(0, Line, s ? BgColor : clrBackground);
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if (s) {
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int x = (Width() - int(strlen(s))) / 2;
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if (x < 0)
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x = 0;
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Write(x, Line, s, FgColor, BgColor);
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}
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cStatus::MsgOsdStatusMessage(s);
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}
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void cInterface::Info(const char *s)
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{
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Open(Setup.OSDwidth, -1);
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isyslog("info: %s", s);
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Status(s, clrBlack, clrGreen);
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Wait();
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Status(NULL);
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Close();
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}
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void cInterface::Error(const char *s)
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{
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Open(Setup.OSDwidth, -1);
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esyslog("ERROR: %s", s);
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Status(s, clrWhite, clrRed);
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Wait();
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Status(NULL);
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Close();
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}
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bool cInterface::Confirm(const char *s, int Seconds, bool WaitForTimeout)
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{
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Open(Setup.OSDwidth, -1);
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isyslog("confirm: %s", s);
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Status(s, clrBlack, clrYellow);
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eKeys k = Wait(Seconds);
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bool result = WaitForTimeout ? k == kNone : k == kOk;
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Status(NULL);
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Close();
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isyslog("%sconfirmed", result ? "" : "not ");
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return result;
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}
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void cInterface::HelpButton(int Index, const char *Text, eDvbColor FgColor, eDvbColor BgColor)
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{
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if (open) {
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const int w = Width() / 4;
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cOsd::Fill(Index * w, -1, w, 1, Text ? BgColor : clrBackground);
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if (Text) {
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int l = (w - int(strlen(Text))) / 2;
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if (l < 0)
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l = 0;
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cOsd::Text(Index * w + l, -1, Text, FgColor, BgColor);
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}
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}
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}
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void cInterface::Help(const char *Red, const char *Green, const char *Yellow, const char *Blue)
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{
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HelpButton(0, Red, clrBlack, clrRed);
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HelpButton(1, Green, clrBlack, clrGreen);
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HelpButton(2, Yellow, clrBlack, clrYellow);
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HelpButton(3, Blue, clrWhite, clrBlue);
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cStatus::MsgOsdHelpKeys(Red, Green, Yellow, Blue);
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}
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bool cInterface::QueryKeys(cRemote *Remote)
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{
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WriteText(1, 3, tr("Phase 1: Detecting RC code type"));
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WriteText(1, 5, tr("Press any key on the RC unit"));
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Flush();
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if (Remote->Initialize()) {
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WriteText(1, 5, tr("RC code detected!"));
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WriteText(1, 6, tr("Do not press any key..."));
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Flush();
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sleep(3);
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ClearEol(0, 5);
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ClearEol(0, 6);
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WriteText(1, 3, tr("Phase 2: Learning specific key codes"));
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eKeys NewKey = kUp;
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while (NewKey != kNone) {
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char *Prompt;
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asprintf(&Prompt, tr("Press key for '%s'"), tr(cKey::ToString(NewKey)));
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WriteText(1, 5, Prompt);
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free(Prompt);
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cRemote::Clear();
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Flush();
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for (eKeys k = NewKey; k == NewKey; ) {
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char *NewCode = NULL;
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eKeys Key = cRemote::Get(100, &NewCode);
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switch (Key) {
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case kUp: if (NewKey > kUp) {
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NewKey = eKeys(NewKey - 1);
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cKey *last = Keys.Last();
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if (last && last->Key() == NewKey)
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Keys.Del(last);
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}
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break;
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case kDown: WriteText(1, 5, tr("Press 'Up' to confirm"));
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WriteText(1, 6, tr("Press 'Down' to continue"));
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ClearEol(0, 7);
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ClearEol(0, 8);
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ClearEol(0, 9);
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Flush();
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for (;;) {
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Key = cRemote::Get(100);
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if (Key == kUp) {
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Clear();
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return true;
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}
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else if (Key == kDown) {
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ClearEol(0, 6);
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k = kNone; // breaks the outer for() loop
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break;
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}
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}
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break;
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case kMenu: NewKey = eKeys(NewKey + 1);
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break;
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case kNone: if (NewCode) {
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dsyslog("new %s code: %s = %s", Remote->Name(), NewCode, cKey::ToString(NewKey));
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Keys.Add(new cKey(Remote->Name(), NewCode, NewKey));
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NewKey = eKeys(NewKey + 1);
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free(NewCode);
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}
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break;
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default: break;
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}
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}
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if (NewKey > kUp)
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WriteText(1, 7, tr("(press 'Up' to go back)"));
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else
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ClearEol(0, 7);
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if (NewKey > kDown)
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WriteText(1, 8, tr("(press 'Down' to end key definition)"));
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else
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ClearEol(0, 8);
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if (NewKey > kMenu)
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WriteText(1, 9, tr("(press 'Menu' to skip this key)"));
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else
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ClearEol(0, 9);
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}
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return true;
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}
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return false;
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}
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void cInterface::LearnKeys(void)
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{
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for (cRemote *Remote = Remotes.First(); Remote; Remote = Remotes.Next(Remote)) {
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if (!Remote->Ready()) {
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esyslog("ERROR: remote control %s not ready!", Remote->Name());
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continue;
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}
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bool known = Keys.KnowsRemote(Remote->Name());
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dsyslog("remote control %s - %s", Remote->Name(), known ? "keys known" : "learning keys");
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if (!known) {
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Open();
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char Headline[Width()];
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snprintf(Headline, sizeof(Headline), tr("Learning Remote Control Keys (%s)"), Remote->Name());
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Clear();
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cRemote::Clear();
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WriteText(1, 1, Headline);
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cRemote::SetLearning(Remote);
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bool rc = QueryKeys(Remote);
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cRemote::SetLearning(NULL);
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Clear();
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if (!rc) {
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Close();
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continue;
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}
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WriteText(1, 1, Headline);
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WriteText(1, 3, tr("Phase 3: Saving key codes"));
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WriteText(1, 5, tr("Press 'Up' to save, 'Down' to cancel"));
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for (;;) {
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eKeys key = GetKey();
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if (key == kUp) {
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Keys.Save();
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Close();
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break;
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}
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else if (key == kDown) {
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Keys.Load();
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Close();
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break;
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}
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}
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}
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}
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}
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