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vdr/interface.c

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C
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/*
* interface.c: Abstract user interface 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: interface.c 1.9 2000/05/07 09:28:39 kls Exp $
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*/
#include "interface.h"
#include <unistd.h>
#include "remote.h"
#ifndef DEBUG_REMOTE
cRcIo RcIo("/dev/ttyS1");
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#endif
cInterface Interface;
cInterface::cInterface(void)
{
open = 0;
cols[0] = 0;
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keyFromWait = kNone;
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}
void cInterface::Init(void)
{
#ifndef DEBUG_REMOTE
RcIo.SetCode(Keys.code, Keys.address);
#endif
}
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void cInterface::Open(int NumCols, int NumLines)
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{
if (!open++)
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cDvbApi::PrimaryDvbApi->Open(NumCols, NumLines);
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}
void cInterface::Close(void)
{
if (open == 1)
Clear();
if (!--open)
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cDvbApi::PrimaryDvbApi->Close();
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}
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unsigned int cInterface::GetCh(bool Wait)
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{
#ifdef DEBUG_REMOTE
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timeout(Wait ? 1000 :10);
int c = getch();
return (c > 0) ? c : 0;
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#else
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#ifdef DEBUG_OSD
timeout(0);
getch(); // just to make 'ncurses' display the window:
#endif
if (Wait || RcIo.InputAvailable()) {
unsigned int Command;
return RcIo.GetCommand(&Command, NULL) ? Command : 0;
}
return 0;
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#endif
}
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eKeys cInterface::GetKey(bool Wait)
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{
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eKeys Key = keyFromWait != kNone ? keyFromWait : Keys.Get(GetCh(Wait));
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keyFromWait = kNone;
return Key;
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}
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eKeys cInterface::Wait(int Seconds, bool KeepChar)
{
int t0 = time_ms();
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eKeys Key = kNone;
while (time_ms() - t0 < Seconds * 1000) {
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Key = GetKey();
if (Key != kNone)
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break;
}
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if (KeepChar)
keyFromWait = Key;
return Key;
}
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void cInterface::Clear(void)
{
if (open)
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cDvbApi::PrimaryDvbApi->Clear();
}
void cInterface::ClearEol(int x, int y, eDvbColor Color)
{
if (open)
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cDvbApi::PrimaryDvbApi->ClrEol(x, y, Color);
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}
void cInterface::SetCols(int *c)
{
for (int i = 0; i < MaxCols; i++) {
cols[i] = *c++;
if (cols[i] == 0)
break;
}
}
void cInterface::Write(int x, int y, const char *s, eDvbColor FgColor, eDvbColor BgColor)
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{
if (open)
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cDvbApi::PrimaryDvbApi->Text(x, y, s, FgColor, BgColor);
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}
void cInterface::WriteText(int x, int y, const char *s, bool Current)
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{
if (open) {
eDvbColor FgColor = Current ? clrBlack : clrWhite;
eDvbColor BgColor = Current ? clrCyan : clrBackground;
ClearEol(x, y, BgColor);
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int col = 0;
for (;;) {
const char *t = strchr(s, '\t');
const char *p = s;
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char buf[1000];
if (t && col < MaxCols && cols[col] > 0) {
unsigned int n = t - s;
if (n >= sizeof(buf))
n = sizeof(buf) - 1;
strncpy(buf, s, n);
buf[n] = 0;
p = buf;
s = t + 1;
}
Write(x, y, p, FgColor, BgColor);
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if (p == s)
break;
x += cols[col++];
}
}
}
void cInterface::Title(const char *s)
{
int x = (MenuColumns - strlen(s)) / 2;
if (x < 0)
x = 0;
ClearEol(0, 0, clrCyan);
Write(x, 0, s, clrBlack, clrCyan);
}
void cInterface::Status(const char *s, eDvbColor FgColor, eDvbColor BgColor)
{
ClearEol(0, -3, s ? BgColor : clrBackground);
if (s)
Write(0, -3, s, FgColor, BgColor);
}
void cInterface::Info(const char *s)
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{
Open();
isyslog(LOG_INFO, s);
Status(s, clrWhite, clrGreen);
Wait();
Status(NULL);
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Close();
}
void cInterface::Error(const char *s)
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{
Open();
esyslog(LOG_ERR, s);
Status(s, clrWhite, clrRed);
Wait();
Status(NULL);
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Close();
}
bool cInterface::Confirm(const char *s)
{
Open();
isyslog(LOG_INFO, "confirm: %s", s);
Status(s, clrBlack, clrGreen);
bool result = Wait(10) == kOk;
Status(NULL);
Close();
isyslog(LOG_INFO, "%sconfirmed", result ? "" : "not ");
return result;
}
void cInterface::HelpButton(int Index, const char *Text, eDvbColor FgColor, eDvbColor BgColor)
{
if (open && Text) {
const int w = MenuColumns / 4;
int l = (w - strlen(Text)) / 2;
if (l < 0)
l = 0;
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cDvbApi::PrimaryDvbApi->Fill(Index * w, -1, w, 1, BgColor);
cDvbApi::PrimaryDvbApi->Text(Index * w + l, -1, Text, FgColor, BgColor);
}
}
void cInterface::Help(const char *Red, const char *Green, const char *Yellow, const char *Blue)
{
HelpButton(0, Red, clrBlack, clrRed);
HelpButton(1, Green, clrBlack, clrGreen);
HelpButton(2, Yellow, clrBlack, clrYellow);
HelpButton(3, Blue, clrWhite, clrBlue);
}
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void cInterface::QueryKeys(void)
{
Keys.Clear();
WriteText(1, 1, "Learning Remote Control Keys");
WriteText(1, 3, "Phase 1: Detecting RC code type");
WriteText(1, 5, "Press any key on the RC unit");
#ifndef DEBUG_REMOTE
unsigned char Code = 0;
unsigned short Address;
#endif
for (;;) {
#ifdef DEBUG_REMOTE
if (GetCh())
break;
#else
//TODO on screen display...
if (RcIo.DetectCode(&Code, &Address)) {
Keys.code = Code;
Keys.address = Address;
WriteText(1, 5, "RC code detected!");
WriteText(1, 6, "Do not press any key...");
RcIo.Flush(3);
ClearEol(0, 5);
ClearEol(0, 6);
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break;
}
#endif
}
WriteText(1, 3, "Phase 2: Learning specific key codes");
tKey *k = Keys.keys;
while (k->type != kNone) {
char *Prompt;
asprintf(&Prompt, "Press key for '%s'", k->name);
WriteText(1, 5, Prompt);
delete Prompt;
for (;;) {
unsigned int ch = GetCh();
if (ch != 0) {
switch (Keys.Get(ch)) {
case kUp: if (k > Keys.keys) {
k--;
break;
}
case kDown: if (k > Keys.keys + 1) {
WriteText(1, 5, "Press 'Up' to confirm");
WriteText(1, 6, "Press 'Down' to continue");
ClearEol(0, 7);
ClearEol(0, 8);
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for (;;) {
eKeys key = GetKey();
if (key == kUp) {
Clear();
return;
}
else if (key == kDown) {
ClearEol(0, 6);
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break;
}
}
break;
}
case kNone: k->code = ch;
k++;
break;
default: break;
}
break;
}
}
if (k > Keys.keys)
WriteText(1, 7, "(press 'Up' to go back)");
else
ClearEol(0, 7);
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if (k > Keys.keys + 1)
WriteText(1, 8, "(press 'Down' to end key definition)");
else
ClearEol(0, 8);
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}
}
void cInterface::LearnKeys(void)
{
isyslog(LOG_INFO, "learning keys");
Open();
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for (;;) {
Clear();
QueryKeys();
Clear();
WriteText(1, 1, "Learning Remote Control Keys");
WriteText(1, 3, "Phase 3: Saving key codes");
WriteText(1, 5, "Press 'Up' to save, 'Down' to cancel");
for (;;) {
eKeys key = GetKey();
if (key == kUp) {
Keys.Save();
Close();
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return;
}
else if (key == kDown) {
Keys.Load();
Close();
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return;
}
}
}
}
void cInterface::DisplayChannel(int Number, const char *Name)
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{
#ifndef DEBUG_REMOTE
RcIo.Number(Number);
#endif
if (Name && !Recording()) {
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Open(MenuColumns, 1);
char buffer[MenuColumns + 1];
snprintf(buffer, sizeof(buffer), "%d %s", Number, Name ? Name : "");
Write(0, 0, buffer);
time_t t = time(NULL);
struct tm *now = localtime(&t);
snprintf(buffer, sizeof(buffer), "%02d:%02d", now->tm_hour, now->tm_min);
Write(-5, 0, buffer);
if (Wait(2, true) == kOk)
GetKey();
Close();
}
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}
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void cInterface::DisplayRecording(int Index, bool On)
{
#ifndef DEBUG_REMOTE
RcIo.SetPoints(1 << Index, On);
#endif
}
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bool cInterface::Recording(void)
{
// This is located here because the Interface has to do with the "PrimaryDvbApi" anyway
return cDvbApi::PrimaryDvbApi->Recording();
}