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vdr/menuitems.c

494 lines
12 KiB
C

/*
* menuitems.c: General purpose menu items
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: menuitems.c 1.9 2002/09/08 14:51:28 kls Exp $
*/
#include "menuitems.h"
#include <ctype.h>
#include "i18n.h"
#include "plugin.h"
#include "status.h"
const char *FileNameChars = " abcdefghijklmnopqrstuvwxyz0123456789-.#~";
// --- cMenuEditItem ---------------------------------------------------------
cMenuEditItem::cMenuEditItem(const char *Name)
{
name = strdup(Name);
value = NULL;
}
cMenuEditItem::~cMenuEditItem()
{
free(name);
free(value);
}
void cMenuEditItem::SetValue(const char *Value)
{
free(value);
value = strdup(Value);
char *buffer = NULL;
asprintf(&buffer, "%s:\t%s", name, value);
SetText(buffer, false);
Display();
}
// --- cMenuEditIntItem ------------------------------------------------------
cMenuEditIntItem::cMenuEditIntItem(const char *Name, int *Value, int Min, int Max)
:cMenuEditItem(Name)
{
value = Value;
min = Min;
max = Max;
Set();
}
void cMenuEditIntItem::Set(void)
{
char buf[16];
snprintf(buf, sizeof(buf), "%d", *value);
SetValue(buf);
}
eOSState cMenuEditIntItem::ProcessKey(eKeys Key)
{
eOSState state = cMenuEditItem::ProcessKey(Key);
if (state == osUnknown) {
int newValue;
if (k0 <= Key && Key <= k9) {
if (fresh) {
*value = 0;
fresh = false;
}
newValue = *value * 10 + (Key - k0);
}
else if (NORMALKEY(Key) == kLeft) { // TODO might want to increase the delta if repeated quickly?
newValue = *value - 1;
fresh = true;
}
else if (NORMALKEY(Key) == kRight) {
newValue = *value + 1;
fresh = true;
}
else {
if (*value < min) { *value = min; Set(); }
if (*value > max) { *value = max; Set(); }
return state;
}
if ((!fresh || min <= newValue) && newValue <= max) {
*value = newValue;
Set();
}
state = osContinue;
}
return state;
}
// --- cMenuEditBoolItem -----------------------------------------------------
cMenuEditBoolItem::cMenuEditBoolItem(const char *Name, int *Value, const char *FalseString, const char *TrueString)
:cMenuEditIntItem(Name, Value, 0, 1)
{
falseString = FalseString ? FalseString : tr("no");
trueString = TrueString ? TrueString : tr("yes");
Set();
}
void cMenuEditBoolItem::Set(void)
{
char buf[16];
snprintf(buf, sizeof(buf), "%s", *value ? trueString : falseString);
SetValue(buf);
}
// --- cMenuEditChrItem ------------------------------------------------------
cMenuEditChrItem::cMenuEditChrItem(const char *Name, char *Value, const char *Allowed)
:cMenuEditItem(Name)
{
value = Value;
allowed = strdup(Allowed);
current = strchr(allowed, *Value);
if (!current)
current = allowed;
Set();
}
cMenuEditChrItem::~cMenuEditChrItem()
{
free(allowed);
}
void cMenuEditChrItem::Set(void)
{
char buf[2];
snprintf(buf, sizeof(buf), "%c", *value);
SetValue(buf);
}
eOSState cMenuEditChrItem::ProcessKey(eKeys Key)
{
eOSState state = cMenuEditItem::ProcessKey(Key);
if (state == osUnknown) {
if (NORMALKEY(Key) == kLeft) {
if (current > allowed)
current--;
}
else if (NORMALKEY(Key) == kRight) {
if (*(current + 1))
current++;
}
else
return state;
*value = *current;
Set();
state = osContinue;
}
return state;
}
// --- cMenuEditStrItem ------------------------------------------------------
cMenuEditStrItem::cMenuEditStrItem(const char *Name, char *Value, int Length, const char *Allowed)
:cMenuEditItem(Name)
{
value = Value;
length = Length;
allowed = strdup(Allowed);
pos = -1;
insert = uppercase = false;
newchar = true;
Set();
}
cMenuEditStrItem::~cMenuEditStrItem()
{
free(allowed);
}
void cMenuEditStrItem::SetHelpKeys(void)
{
if (pos >= 0)
Interface->Help(tr("ABC/abc"), tr(insert ? "Overwrite" : "Insert"), tr("Delete"));
else
Interface->Help(NULL);
}
void cMenuEditStrItem::Set(void)
{
char buf[1000];
const char *fmt = insert && newchar ? "[]%c%s" : "[%c]%s";
if (pos >= 0) {
strncpy(buf, value, pos);
snprintf(buf + pos, sizeof(buf) - pos - 2, fmt, *(value + pos), value + pos + 1);
int width = Interface->Width() - Interface->GetCols()[0];
if (cOsd::WidthInCells(buf) <= width) {
// the whole buffer fits on the screen
SetValue(buf);
return;
}
width *= cOsd::CellWidth();
width -= cOsd::Width('>'); // assuming '<' and '>' have the same with
int w = 0;
int i = 0;
int l = strlen(buf);
while (i < l && w <= width)
w += cOsd::Width(buf[i++]);
if (i >= pos + 4) {
// the cursor fits on the screen
buf[i - 1] = '>';
buf[i] = 0;
SetValue(buf);
return;
}
// the cursor doesn't fit on the screen
w = 0;
if (buf[i = pos + 3]) {
buf[i] = '>';
buf[i + 1] = 0;
}
else
i--;
while (i >= 0 && w <= width)
w += cOsd::Width(buf[i--]);
buf[++i] = '<';
SetValue(buf + i);
}
else
SetValue(value);
}
char cMenuEditStrItem::Inc(char c, bool Up)
{
const char *p = strchr(allowed, c);
if (!p)
p = allowed;
if (Up) {
if (!*++p)
p = allowed;
}
else if (--p < allowed)
p = allowed + strlen(allowed) - 1;
return *p;
}
eOSState cMenuEditStrItem::ProcessKey(eKeys Key)
{
switch (Key) {
case kRed: // Switch between upper- and lowercase characters
if (pos >= 0 && (!insert || !newchar)) {
uppercase = !uppercase;
value[pos] = uppercase ? toupper(value[pos]) : tolower(value[pos]);
}
break;
case kGreen: // Toggle insert/overwrite modes
if (pos >= 0) {
insert = !insert;
newchar = true;
}
SetHelpKeys();
break;
case kYellow|k_Repeat:
case kYellow: // Remove the character at current position; in insert mode it is the character to the right of cursor
if (pos >= 0) {
if (strlen(value) > 1) {
memmove(value + pos, value + pos + 1, strlen(value) - pos);
// reduce position, if we removed the last character
if (pos == int(strlen(value)))
pos--;
}
else if (strlen(value) == 1)
value[0] = ' '; // This is the last character in the string, replace it with a blank
if (isalpha(value[pos]))
uppercase = isupper(value[pos]);
newchar = true;
}
break;
case kLeft|k_Repeat:
case kLeft: if (pos > 0) {
if (!insert || newchar)
pos--;
newchar = true;
}
if (!insert && isalpha(value[pos]))
uppercase = isupper(value[pos]);
break;
case kRight|k_Repeat:
case kRight: if (pos < length && pos < int(strlen(value)) ) {
if (++pos >= int(strlen(value))) {
if (pos >= 2 && value[pos - 1] == ' ' && value[pos - 2] == ' ')
pos--; // allow only two blanks at the end
else {
value[pos] = ' ';
value[pos + 1] = 0;
}
}
}
newchar = true;
if (!insert && isalpha(value[pos]))
uppercase = isupper(value[pos]);
if (pos == 0)
SetHelpKeys();
break;
case kUp|k_Repeat:
case kUp:
case kDown|k_Repeat:
case kDown: if (pos >= 0) {
if (insert && newchar) {
// create a new character in insert mode
if (int(strlen(value)) < length) {
memmove(value + pos + 1, value + pos, strlen(value) - pos + 1);
value[pos] = ' ';
}
}
if (uppercase)
value[pos] = toupper(Inc(tolower(value[pos]), NORMALKEY(Key) == kUp));
else
value[pos] = Inc( value[pos], NORMALKEY(Key) == kUp);
newchar = false;
}
else
return cMenuEditItem::ProcessKey(Key);
break;
case kOk: if (pos >= 0) {
pos = -1;
newchar = true;
stripspace(value);
SetHelpKeys();
break;
}
// run into default
default: return cMenuEditItem::ProcessKey(Key);
}
Set();
return osContinue;
}
// --- cMenuEditStraItem -----------------------------------------------------
cMenuEditStraItem::cMenuEditStraItem(const char *Name, int *Value, int NumStrings, const char * const *Strings)
:cMenuEditIntItem(Name, Value, 0, NumStrings - 1)
{
strings = Strings;
Set();
}
void cMenuEditStraItem::Set(void)
{
SetValue(strings[*value]);
}
// --- cMenuTextItem ---------------------------------------------------------
cMenuTextItem::cMenuTextItem(const char *Text, int X, int Y, int W, int H, eDvbColor FgColor, eDvbColor BgColor, eDvbFont Font)
{
x = X;
y = Y;
w = W;
h = H;
fgColor = FgColor;
bgColor = BgColor;
font = Font;
offset = 0;
eDvbFont oldFont = Interface->SetFont(font);
text = Interface->WrapText(Text, w - 1, &lines);
Interface->SetFont(oldFont);
if (h < 0)
h = lines;
}
cMenuTextItem::~cMenuTextItem()
{
free(text);
}
void cMenuTextItem::Clear(void)
{
Interface->Fill(x, y, w, h, bgColor);
}
void cMenuTextItem::Display(int Offset, eDvbColor FgColor, eDvbColor BgColor)
{
int l = 0;
char *t = text;
eDvbFont oldFont = Interface->SetFont(font);
while (*t) {
char *n = strchr(t, '\n');
if (l >= offset) {
if (n)
*n = 0;
Interface->Write(x, y + l - offset, t, fgColor, bgColor);
if (n)
*n = '\n';
else
break;
}
if (!n)
break;
t = n + 1;
if (++l >= h + offset)
break;
}
Interface->SetFont(oldFont);
// scroll indicators use inverted color scheme!
if (CanScrollUp()) Interface->Write(x + w - 1, y, "^", bgColor, fgColor);
if (CanScrollDown()) Interface->Write(x + w - 1, y + h - 1, "v", bgColor, fgColor);
cStatus::MsgOsdTextItem(text);
}
void cMenuTextItem::ScrollUp(bool Page)
{
if (CanScrollUp()) {
Clear();
offset = max(offset - (Page ? h : 1), 0);
Display();
}
cStatus::MsgOsdTextItem(NULL, true);
}
void cMenuTextItem::ScrollDown(bool Page)
{
if (CanScrollDown()) {
Clear();
offset = min(offset + (Page ? h : 1), lines - h);
Display();
}
cStatus::MsgOsdTextItem(NULL, false);
}
eOSState cMenuTextItem::ProcessKey(eKeys Key)
{
switch (Key) {
case kLeft|k_Repeat:
case kLeft:
case kUp|k_Repeat:
case kUp: ScrollUp(NORMALKEY(Key) == kLeft); break;
case kRight|k_Repeat:
case kRight:
case kDown|k_Repeat:
case kDown: ScrollDown(NORMALKEY(Key) == kRight); break;
default: return osUnknown;
}
return osContinue;
}
// --- cMenuSetupPage --------------------------------------------------------
cMenuSetupPage::cMenuSetupPage(void)
:cOsdMenu("", 33)
{
plugin = NULL;
}
void cMenuSetupPage::SetSection(const char *Section)
{
char buf[40];
snprintf(buf, sizeof(buf), "%s - %s", tr("Setup"), Section);
SetTitle(buf);
}
eOSState cMenuSetupPage::ProcessKey(eKeys Key)
{
eOSState state = cOsdMenu::ProcessKey(Key);
if (state == osUnknown) {
switch (Key) {
case kOk: Store();
state = osBack;
break;
default: break;
}
}
return state;
}
void cMenuSetupPage::SetPlugin(cPlugin *Plugin)
{
plugin = Plugin;
char buf[40];
snprintf(buf, sizeof(buf), "%s '%s'", tr("Plugin"), plugin->Name());
SetSection(buf);
}
void cMenuSetupPage::SetupStore(const char *Name, const char *Value)
{
if (plugin)
plugin->SetupStore(Name, Value);
}
void cMenuSetupPage::SetupStore(const char *Name, int Value)
{
if (plugin)
plugin->SetupStore(Name, Value);
}