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theme.c
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/**
* GraphTFT plugin for the Video Disk Recorder
*
* theme.c - A plugin for the Video Disk Recorder
*
* (c) 2004 Lars Tegeler, Sascha Volkenandt
* (c) 2006-2013 Jörg Wendel
*
* This code is distributed under the terms and conditions of the
* GNU GENERAL PUBLIC LICENSE. See the file COPYING for details.
*
**/
#include <sys/inotify.h>
#include <theme.h>
#include <common.h>
#include <scan.h>
#include "setup.h"
//***************************************************************************
// The Theme
//***************************************************************************
cGraphTFTTheme* Thms::theTheme = 0;
cGraphTFTThemes themes;
//***************************************************************************
// Convert Channel-Name in Logo Path
//***************************************************************************
string VariableProvider::channelLogoPath(const char* channel,
const char* format, int classic)
{
unsigned int s = 0;
unsigned int d = 0;
unsigned int len = strlen(channel);
char* file = (char *)malloc(len+TB);
// remove '\/:*?"<>| character
while (channel[s])
{
if (!strchr("/':*?\"<>\\", channel[s]))
file[d++] = channel[s];
s++;
}
file[d] = 0;
// special handling fore some channels
if (!rep(file, "D [0-9] \\- ...."))
{
free(file);
file = strdup("DIREKT");
}
string path;
if (classic)
path = "columnimages/" + string(file) + "."
+ ((format && *format) ? string(format) : "png");
else
path = string(file);
free(file);
tell(5, "converted logo name is '%s'", path.c_str());
return path;
}
//***************************************************************************
//
//***************************************************************************
const char* VariableProvider::splitFormatValue(const char* data,
char* value, char* format)
{
const char* f = strchr(data, '/');
if (f)
{
strncpy(value, data, f-data);
value[f-data] = 0;
strcpy(format, f+1);
return value;
}
strcpy(value, data);
*format = 0;
return value;
}
//***************************************************************************
// Variable Of
// - returns the first variable name in expession
// "{varTest} xx {varHallo}" -> varTest
//***************************************************************************
int VariableProvider::variableOf(string& name, const char* expression, char*& e)
{
const char* s;
tell(4, "variableOf '%s'", expression);
if ((s = strchr(expression, '{')))
{
s++;
if (!(e = (char *)strchr(s, '}')))
{
tell(0, "Parsing of [%s] failed, missing bracket '}'", expression);
return fail;
}
// found expression
name = string(expression, s-expression, e-s);
tell(4, "variable '%s' found", name.c_str());
return success;
}
return fail;
}
//***************************************************************************
// Evaluate Variable
//***************************************************************************
int VariableProvider::evaluate(string& buf, const char* var)
{
const char* s;
const char* e;
string v;
const char* p = var;
char exp[1000+TB];
int len;
char tmp[1+TB];
buf = "";
tell(4, "evaluating '%s'", var);
while ((s = strchr(p, '{')))
{
if (s > p)
buf.append(p, s-p);
if (!(e = strchr(p, '}')))
{
tell(0, "Parsing of [%s] failed, missing bracket '}'", var);
return fail;
}
// found expression
e--;
len = std::min((int)(e-s), 1000);
if (len < 1)
{
tell(0, "Parsing of [%s] failed, bracket missmatch", var);
return fail;
}
strncpy(exp, s+1, len);
exp[len] = 0;
tell(4, "variable '%s' found", exp);
if (*exp == '\\' && strlen(exp) > 1)
{
tmp[0] = (char)atoi(exp+1);
tmp[1] = 0;
v = tmp;
tell(4, "found character expression '%s'", v.c_str());
}
else
{
char fmt[100+TB];
char val[255+TB];
// split if expression contais format string
// in a expression a '/' always start a format string or special function
splitFormatValue(exp, val, fmt);
tell(4, "expression '%s' with variable '%s' and format '%s'",
exp, val, fmt);
// lookup variable
if (lookupVariable(val, v, fmt) != success)
return fail;
tell(4, "I Variable '%s' evaluated, value is '%s'", val, v.c_str());
string vv;
if (strchr(v.c_str(), '{') && evaluate(vv, v.c_str()) == success)
{
tell(4, "II Variable '%s' evaluated, value is '%s'", v.c_str(), vv.c_str());
v = vv;
}
// do the format stuff
if (!Str::isEmpty(fmt) && strcasecmp(fmt, "toLogo") == 0)
v = channelLogoPath(v.c_str(), 0, no);
}
buf.append(v);
p = e+2;
}
buf.append(p);
return success;
}
//***************************************************************************
// Calculate Expression
// calc expressions like: "2 + 4"
//***************************************************************************
int VariableProvider::calcExpression(const char* expression)
{
Scan* scan;
int result = 0;
char op[100]; *op = 0;
if (!expression || !*expression)
return 0;
scan = new Scan(expression, no);
// left expression
if (scan->eat(yes) != success || !scan->isNum())
{
delete scan;
return result;
}
result = scan->lastInt();
while (scan->eat() == success && scan->isOperator())
{
strcpy(op, scan->lastIdent());
if (scan->eat(yes) != success || !scan->isNum())
{
delete scan;
return result;
}
result = calc(op, result, scan->lastInt());
}
delete scan;
return result;
}
int VariableProvider::calc(const char* op, int left, int right)
{
int result = left;
if (*op == '+')
result += right;
else if (*op == '-')
result -= right;
else if (*op == '*')
result *= right;
else if (*op == ':')
result /= right;
return result;
}
//***************************************************************************
// cThemeService
//***************************************************************************
const char* cThemeService::items[] =
{
"Include",
"Theme",
"Text",
"Image",
"ImageFile",
"ImageDir",
"Rectangle",
"Timebar",
"Message",
"VolumeMuteSymbol",
"Volumebar",
"Menu",
"MenuSelected",
"MenuButtonRed",
"MenuButtonGreen",
"MenuButtonYellow",
"MenuButtonBlue",
"MenuButtonBackgroundRed",
"MenuButtonBackgroundGreen",
"MenuButtonBackgroundYellow",
"MenuButtonBackgroundBlue",
"MenuImageMap",
"SpectrumAnalyzer",
"PartingLine",
"Sysinfo",
"Background",
"TextList",
"Progressbar",
"ClickArea",
"MenuNavigationArea",
"CalibrationCursor",
"Column",
"ColumnSelected",
"EventColumn",
"EventColumnSelected",
"Defaults",
"VariableFile",
0
};
const char* cThemeService::toName(ItemKind aItem)
{
if (!isValid(aItem))
return "unknown";
return items[aItem];
}
cThemeService::ItemKind cThemeService::toItem(const char* aName)
{
for (int i = 0; items[i]; i++)
if (strcasecmp(items[i], aName) == 0)
return (ItemKind)i;
return itemUnknown;
}
//***************************************************************************
// Translations
//***************************************************************************
cThemeService::Translation cThemeService::alignments[] =
{
{ algLeft, "left" },
{ algCenter, "center" },
{ algRight, "right" },
{ 0, 0 }
};
cThemeService::Translation cThemeService::scrollmodes[] =
{
{ smOff, "off" },
{ smMarquee, "marquee" },
{ smTicker, "ticker" },
{ 0, 0 }
};
int cThemeService::toDenum(Translation t[], const char* value)
{
for (int i = 0; t[i].name; i++)
{
if (strcasecmp(t[i].name, value) == 0)
return t[i].denum;
}
return na;
}
//***************************************************************************
// Class cThemeItem
//***************************************************************************
cThemeSection* cThemeItem::currentSection = 0;
string cThemeItem::lineBuffer = "";
string cThemeItem::condition = "";
cThemeItem::cThemeItem()
{
_item = itemUnknown;
_x = "-1";
_y = "-1";
_width = "0";
_height = "0";
_bg_x = na;
_bg_y = na;
_image_map = 0;
_stat_pic = 0;
_stat_text=0;
_stat_width = 0;
_stat_height = 0;
_stat_x = 0;
_stat_y = 0;
_bg_width = 0;
_bg_height = 0;
_overlay = no;
_lines = 0;
_start_line = "0";
_line = 0;
_size = 32;
_switch = no;
_align = Ts::algLeft;
_align_v = 0;
_delay=0;
_foreground = no;
_count=0;
_spacing = 0;
_yspacing = 5;
_bar_height = 100;
_bar_height_unit = iuPercent;
_scroll = smOff;
_scroll_count = 0;
_dots = no;
_permanent = no;
_factor = 1;
_aspect_ratio = no;
_rotate = 0; // { 0 - off; 1 - auto; }
_fit = no;
_value = "";
_total = "";
_menu_x = 0;
_menu_y = 0;
_menu_width = 0;
_menu_height = 0;
_color = "255:255:255:255";
_bg_color = "0:0:0:255";
_unit = "";
_reference = "";
_font = "graphTFT";
_type = "";
_format = "";
_path = "";
_path2 = "";
_focus = "";
_text = "";
_number = na;
_index = 0;
_whipe_res = 20;
_onClick = "";
_onDblClick = "";
_onUp = "";
_onDown = "";
_sectionInclude = "";
_condition = "";
_debug = "-";
_id = "";
_area = "";
section = 0;
pathCount = 0;
}
cThemeItem::~cThemeItem()
{
}
//***************************************************************************
// Parse one line => one Item
//***************************************************************************
bool cThemeItem::Parse(const char* s)
{
cDisplayItem* dspItem;
string tmp;
string::size_type posA;
string::size_type posB;
int value;
string toParse;
// skip whitespace
while (*s && (*s == ' ' || *s == '\t'))
s++;
// skip empty lines
if (Str::isEmpty(s))
return true;
// append
lineBuffer.append(s);
// skip line and inline comments
if ((posA = lineBuffer.find("//")) != string::npos)
{
lineBuffer.erase(posA);
if (Str::isBlank(lineBuffer.c_str()))
return true;
}
// parse directives
if ((posA = lineBuffer.find("#")) == 0)
{
parseDirectives(lineBuffer);
lineBuffer.clear();
return true;
}
if (Thms::theTheme->isSkipContent())
{
lineBuffer.clear();
tell(2, "Skipping line due to directive [%.50s%s]",
s, strlen(s) > 50 ? ".." : "");
return true;
}
// parse variables
if ((posA = lineBuffer.find("var ")) == 0)
{
string tmp = lineBuffer.substr(posA+4);
parseVariable(tmp, currentSection);
lineBuffer.clear();
return true;
}
// parse condition
if ((posA = lineBuffer.find("if ")) == 0)
{
condition = lineBuffer.substr(posA+3);
lineBuffer.clear();
return true;
}
else if (lineBuffer.find("endif") == 0)
{
condition = "";
lineBuffer.clear();
return true;
}
// check if it is a section start
posA = lineBuffer.find("[");
posB = lineBuffer.find("]", posA);
if (posA == 0 && posB > 0 && posB != string::npos)
{
// section ...
tmp = lineBuffer.substr(posA+1, posB-1);
// append section
currentSection = new cThemeSection(tmp);
Thms::theTheme->getSections()->Add(currentSection);
Thms::theTheme->addNormalSection(currentSection->getName());
lineBuffer.clear();
return true;
}
// line completed ?
if (lineBuffer.find(";") == string::npos)
{
tell(5, "line buffer now [%s]", lineBuffer.c_str());
return true;
}
// ----------------------------
//
tell(4, "line completed, processing [%s]", toParse.c_str());
toParse = lineBuffer;
lineBuffer.clear();
if (!currentSection)
return true;
// include section ...
if (ParseVar(toParse, "Include", &tmp) == success)
{
if ((dspItem = newDisplayItem(itemSectionInclude)))
{
currentSection->Add(dspItem);
dspItem->_sectionInclude = tmp;
}
return true;
}
// item ...
if ((posA = toParse.find(" ")) == string::npos)
{
tell(0, "Ignoring invalid theme line [%.50s%s]",
s, strlen(s) > 50 ? ".." : "");
return true;
}
// parse item attributes ..
_item = toItem(toParse.substr(0, posA).c_str());
switch (_item)
{
case itemVarFile:
{
if ((dspItem = newDisplayItem(itemVarFile)))
{
dspItem->ParseText(toParse);
dspItem->_item = _item;
dspItem->setSection(currentSection);
currentSection->addVarFile(dspItem);
tell(2, "added variable file '%s', namespace '%s'",
dspItem->Path2().c_str(), dspItem->Path().c_str());
}
return true;
}
case itemTheme:
{
ParseVarExt(toParse, "name", &tmp);
Thms::theTheme->setName(tmp);
ParseVarExt(toParse, "themeVersion", &tmp);
Thms::theTheme->setThemeVersion(tmp);
ParseVarExt(toParse, "syntaxVersion", &tmp);
Thms::theTheme->setSyntaxVersion(tmp);
ParseVarExt(toParse, "dir", &tmp);
Thms::theTheme->setDir(tmp);
ParseVarExt(toParse, "startImage", &tmp);
Thms::theTheme->setStartImage(tmp);
ParseVarExt(toParse, "endImage", &tmp);
Thms::theTheme->setEndImage(tmp);
if (ParseVarExt(toParse, "width", &value) == success)
Thms::theTheme->setWidth(value);
if (ParseVarExt(toParse, "height", &value) == success)
Thms::theTheme->setHeight(value);
if (ParseVarExt(toParse, "fontPath", &tmp) == success)
Thms::theTheme->setFontPath(tmp);
return true;
}
case itemDefaults:
{
currentSection->setDefaultsItem(newDisplayItem(_item));
currentSection->getDefaultsItem()->ParseText(toParse);
return true;
}
case itemUnknown:
{
tell(0, "Warning: Ignoring unknown theme item = [%s]",
toParse.substr(0, posA).c_str());
return true;
}
}
dspItem = newDisplayItem(_item);
if (dspItem)
{
if (_item == itemMenuImageMap)
Thms::theTheme->AddMapItem(dspItem);
else
currentSection->Add(dspItem);
// copy default values
if (currentSection->getDefaultsItem())
*dspItem = *currentSection->getDefaultsItem(); // copy constructor
else
tell(2, "Info: No defaults for section '%s' defined",
currentSection->getName().c_str());
// set/parse item properties
dspItem->_item = _item;
dspItem->setSection(currentSection);
dspItem->ParseText(toParse);
if (condition.size())
{
if (dspItem->_condition.size())
dspItem->_condition += " && ";
dspItem->_condition += condition;
tell(3, "Attach condition '%s' to '%s', condition now '%s'",
condition.c_str(), dspItem->nameOf(), dspItem->_condition.c_str());
}
}
return true;
}
//***************************************************************************
// Parse Variable
//***************************************************************************
int cThemeItem::parseVariable(string& toParse, cThemeSection* section)
{
int menu = no;
string name, value;
Scan scan(toParse.c_str());
scan.eat();
if (!scan.isIdent())
{
tell(0, "Error: Invalid left value '%s' in '%s'",
scan.lastIdent(), toParse.c_str());
return fail;
}
// parse optional 'menu' key word
if (strcmp(scan.lastIdent(), "menu") == 0)
{
menu = yes;
scan.eat();
if (!scan.isIdent())
{
tell(0, "Error: Invalid left value '%s' in '%s'",
scan.lastIdent(), toParse.c_str());
return fail;
}
}
// name
name = scan.lastIdent();
scan.eat();
// assignment
if (!scan.isOperator() || scan.lastIdent()[0] != '=')
{
tell(0, "Error: Invalid operator '%s' in '%s', '=' expected",
scan.lastIdent(), toParse.c_str());
return fail;
}
scan.eat();
if (!scan.isString() && scan.isIdent())
{
tell(0, "Error: Invalid right value '%s' in '%s'",
scan.lastIdent(), toParse.c_str());
return fail;
}
// evaluate(value, scan.lastIdent()); // #jw value = scan.lastIdent();
value = scan.lastIdent();
if (section)
{
tell(3, "adding section variable '%s' with '%s' to '%s'",
name.c_str(), value.c_str(), section->getName().c_str());
section->variables[name] = value;
}
else
{
tell(3, "adding theme variable '%s' with '%s' %s",
name.c_str(), value.c_str(), menu ? "mode menu" : "");
if (menu)
Thms::theTheme->menuVariables[name] = value;
else
Thms::theTheme->variables[name] = value;
}
return success;
}
//***************************************************************************
// Parse Directive
//***************************************************************************
int cThemeItem::parseDirectives(string& toParse)
{
string exeption;
if (ParseDirective(toParse, "#define", &exeption) == success
&& exeption.length())
{
tell(1, "Adding define '%s'", exeption.c_str());
Thms::theTheme->defines[Thms::theTheme->defineCount] = exeption;
Thms::theTheme->defineCount++;
return success;
}
else if (ParseDirective(toParse, "#endif", &exeption) == success)
{
if (Thms::theTheme->skipContent.empty())
tell(0, "Warning: Ignoring unexpected '#endif'");
else
Thms::theTheme->skipContent.pop();
tell(2, "Swiching parser '%s' ('#endif' found)",
Thms::theTheme->isSkipContent() ? "off" : "on");
return success;
}
else if (ParseDirective(toParse, "#else", &exeption) == success)
{
int actualSkip = Thms::theTheme->isSkipContent();
if (Thms::theTheme->skipContent.empty())
tell(0, "Warning: Ignoring unexpected '#else'");
else
Thms::theTheme->skipContent.top() = !actualSkip;
tell(2, "Swiching parser '%s' [from '%s'] ('#else' found)",
Thms::theTheme->isSkipContent() ? "off" : "on",
actualSkip ? "off" : "on");
return success;
}
else if ((ParseDirective(toParse, "#ifdef", &exeption) == success
|| ParseDirective(toParse, "#ifndef", &exeption) == success)
&& exeption.length())
{
int actualSkip = Thms::theTheme->isSkipContent();
int negate = no;
if (toParse.find("#ifndef") == 0)
negate = yes;
tell(4, "Found '%s %s'", negate ? "#ifndef" : "#ifdef", exeption.c_str());
int skip = negate ? no : yes;
for (int i = 0; i < Thms::theTheme->defineCount; i++)
{
if (Thms::theTheme->defines[i] == exeption)
{
tell(4, "Define '%s' is set, switching parser '%s'",
exeption.c_str(), negate ? "off" : "on");
skip = negate ? yes : no;
break;
}
}
// aus bleibt aus (bei verschachtelten ifdef)
skip = skip || actualSkip;
Thms::theTheme->skipContent.push(skip);
tell(2, "Parser now '%s' due to '%s' '%s'",
Thms::theTheme->isSkipContent() ? "off" : "on",
negate ? "#ifndef" : "#ifdef",
exeption.c_str());
return success;
}
return ignore;
}
//***************************************************************************
//
//***************************************************************************
cDisplayItem* cThemeItem::newDisplayItem(int item)
{
cDisplayItem* newItem = 0;
switch (item)
{
case itemMenuImageMap:
case itemDefaults:
case itemMenuNavigationArea:
case itemSectionInclude: newItem = new cDisplayItem(); break;
case itemText: newItem = new cDisplayText(); break;
case itemTextList: newItem = new cDisplayTextList(); break;
case itemProgressbar: newItem = new cDisplayProgressBar(); break;
case itemRectangle: newItem = new cDisplayRectangle(); break;
case itemImage: newItem = new cDisplayImage(); break;
case itemImageFile: newItem = new cDisplayImageFile(); break;
case itemImageDir: newItem = new cDisplayImageDir(); break;
case itemCalibrationCursor: newItem = new cDisplayCalibrationCursor(); break;
case itemMessage: newItem = new cDisplayMessage(); break;
case itemMenu: newItem = new cDisplayMenu(); break;
case itemMenuSelected: newItem = new cDisplayMenuSelected(); break;
case itemColumn: newItem = new cDisplayMenuColumn(); break;
case itemColumnSelected: newItem = new cDisplayMenuColumnSelected(); break;
case itemEventColumn: newItem = new cDisplayMenuEventColumn(); break;
case itemEventColumnSelected: newItem = new cDisplayMenuEventColumnSelected(); break;
case itemSpectrumAnalyzer: newItem = new cDisplaySpectrumAnalyzer(); break;
case itemPartingLine: newItem = new cDisplayPartingLine(); break;
case itemSysinfo: newItem = new cDisplaySysinfo(); break;
case itemBackground: newItem = new cDisplayBackground(); break;
case itemVolumeMuteSymbol: newItem = new cDisplayVolumeMuteSymbol(); break;
case itemVolumebar: newItem = new cDisplayVolumebar(); break;
case itemTimebar: newItem = new cDisplayTimebar(); break;
case itemVarFile: newItem = new cVariableFile(); break;
case itemMenuButtonRed:
case itemMenuButtonGreen:
case itemMenuButtonYellow:
case itemMenuButtonBlue:
newItem = new cDisplayMenuButton();
break;
case itemMenuButtonBackgroundRed:
case itemMenuButtonBackgroundGreen:
case itemMenuButtonBackgroundYellow:
case itemMenuButtonBackgroundBlue:
newItem = new cDisplayMenuButtonBackground();
break;
};
if (newItem)
newItem->_item = item;
return newItem;
}
//***************************************************************************
// Parse Properties
//***************************************************************************
int cThemeItem::ParseText(string toParse)
{
ParseVar(toParse, "id", &_id);
ParseVar(toParse, "area", &_area);
ParseVarColor(toParse, "color", &_color);
ParseVarColor(toParse, "bg_color", &_bg_color);
ParseVar(toParse, "x", &_x);
ParseVar(toParse, "y", &_y);
ParseVar(toParse, "width", &_width);
ParseVar(toParse, "height", &_height);
ParseVar(toParse, "overlay", &_overlay);
ParseVar(toParse, "lines", &_lines);
ParseVar(toParse, "start_line", &_start_line);
ParseVar(toParse, "line", &_line);
ParseVar(toParse, "font", &_font);
ParseVar(toParse, "size", &_size);
ParseVar(toParse, "text", &_text);
ParseVar(toParse, "switch", &_switch); // bool
ParseVar(toParse, "align_v", &_align_v);
ParseVar(toParse, "align", &_align, alignments);
ParseVar(toParse, "focus", &_focus);
ParseVar(toParse, "type", &_type);
ParseVar(toParse, "format", &_format);
ParseVarTime(toParse, "delay", &_delay);
ParseVar(toParse, "foreground", &_foreground);
ParseVar(toParse, "count", &_count);
ParseVar(toParse, "image_map", &_image_map); // bool