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#include "fastfetch.h"
#include "common/properties.h"
#include "common/thread.h"
#include "common/strutil.h"
#include "detection/gtk_qt/gtk_qt.h"
#include "detection/displayserver/displayserver.h"
#include <stdlib.h>
#include <string.h>
static inline bool allValuesSet(const FFQtResult* result) {
return result->widgetStyle.length > 0 &&
result->colorScheme.length > 0 &&
result->icons.length > 0 &&
result->font.length > 0 &&
result->wallpaper.length > 0;
}
typedef enum FF_A_PACKED PlasmaCategory {
PLASMA_CATEGORY_GENERAL,
PLASMA_CATEGORY_KDE,
PLASMA_CATEGORY_ICONS,
PLASMA_CATEGORY_OTHER
} PlasmaCategory;
static bool detectPlasmaFromFile(const char* filename, FFQtResult* result) {
FILE* kdeglobals = fopen(filename, "r");
if (kdeglobals == NULL) {
return false;
}
char* line = NULL;
size_t len = 0;
PlasmaCategory category = PLASMA_CATEGORY_OTHER;
while (getline(&line, &len, kdeglobals) != -1) {
if (line[0] == '[') {
char categoryName[32];
sscanf(line, "[%31[^]]", categoryName);
if (ffStrEqualsIgnCase(categoryName, "General")) {
category = PLASMA_CATEGORY_GENERAL;
} else if (ffStrEqualsIgnCase(categoryName, "KDE")) {
category = PLASMA_CATEGORY_KDE;
} else if (ffStrEqualsIgnCase(categoryName, "Icons")) {
category = PLASMA_CATEGORY_ICONS;
} else {
category = PLASMA_CATEGORY_OTHER;
}
continue;
}
if (category == PLASMA_CATEGORY_KDE && result->widgetStyle.length == 0) {
ffParsePropLine(line, "widgetStyle =", &result->widgetStyle);
} else if (category == PLASMA_CATEGORY_ICONS && result->icons.length == 0) {
ffParsePropLine(line, "Theme =", &result->icons);
} else if (category == PLASMA_CATEGORY_GENERAL) {
if (result->colorScheme.length == 0) {
ffParsePropLine(line, "ColorScheme =", &result->colorScheme);
}
if (result->font.length == 0) {
ffParsePropLine(line, "font =", &result->font);
}
// Before plasma 5.23, "Font" was the key instead of "font". Since a lot of distros ship older versions, we test for both.
if (result->font.length == 0) {
ffParsePropLine(line, "Font =", &result->font);
}
}
}
free(line);
fclose(kdeglobals);
return true;
}
static void detectPlasma(FFQtResult* result) {
bool foundAFile = false;
// We need to do this because we use multiple threads on configDirs
FF_STRBUF_AUTO_DESTROY baseDir = ffStrbufCreateA(64);
FF_LIST_FOR_EACH (FFstrbuf, configDir, instance.state.platform.configDirs) {
ffStrbufSet(&baseDir, configDir);
ffStrbufAppendS(&baseDir, "kdeglobals");
if (detectPlasmaFromFile(baseDir.chars, result)) {
foundAFile = true;
}
ffStrbufSet(&baseDir, configDir);
ffStrbufAppendS(&baseDir, "plasma-org.kde.plasma.desktop-appletsrc");
ffParsePropFile(baseDir.chars, "Image=", &result->wallpaper);
if (allValuesSet(result)) {
return;
}
}
if (!foundAFile) {
return;
}
// In Plasma the default value is never set in the config file, but the whole key-value is discarded.
/// We must set these values by our self if the file exists (it always does here)
if (result->widgetStyle.length == 0) {
ffStrbufAppendS(&result->widgetStyle, "Breeze");
}
if (result->colorScheme.length == 0) {
ffStrbufAppendS(&result->colorScheme, "BreezeLight");
}
if (result->icons.length == 0) {
ffStrbufAppendS(&result->icons, "Breeze");
}
if (result->font.length == 0) {
ffStrbufAppendS(&result->font, "Noto Sans, 10");
}
}
static void detectLXQt(FFQtResult* result) {
ffParsePropFileConfigValues("lxqt/lxqt.conf", 3, (FFpropquery[]) { { "style = ", &result->widgetStyle }, { "icon_theme = ", &result->icons }, { "font = ", &result->font } });
ffParsePropFileConfig("pcmanfm-qt/lxqt/settings.conf", "Wallpaper=", &result->wallpaper);
}
static void detectQtCt(char qver, FFQtResult* result) {
// qt5ct and qt6ct are technically separate applications, but they're both
// by the same author and qt6ct understands qt5ct in qt6 applications as well.
char file[] = "qtXct/qtXct.conf";
file[2] = file[8] = qver;
FF_STRBUF_AUTO_DESTROY font = ffStrbufCreate();
ffParsePropFileConfigValues(file, 3, (FFpropquery[]) { { "style=", &result->widgetStyle }, { "icon_theme=", &result->icons }, { "general=", &font } });
if (ffStrbufStartsWithC(&font, '@')) {
// See QVariant notes on https://doc.qt.io/qt-5/qsettings.html and
// https://github.com/fastfetch-cli/fastfetch/issues/1053#issuecomment-2197254769
// Thankfully, newer versions use the more common font encoding.
ffStrbufSetNS(&font, 5, file);
} else if (qver == '5') {
// #1864
const char* p = font.chars;
while (*p) {
if (p[0] == '\\' && p[1] == 'x' && isxdigit(p[2]) && isxdigit(p[3]) && isxdigit(p[4]) && isxdigit(p[5])) {
uint32_t codepoint = (uint32_t) strtoul((char[]) { p[2], p[3], p[4], p[5], '\0' }, NULL, 16);
ffStrbufAppendUtf32CodePoint(&result->font, codepoint);
p += 6;
} else {
ffStrbufAppendC(&result->font, *p++);
}
}
} else {
ffStrbufDestroy(&result->font);
ffStrbufInitMove(&result->font, &font);
}
}
static void detectKvantum(FFQtResult* result) {
ffParsePropFileConfigValues("Kvantum/kvantum.kvconfig", 1, (FFpropquery[]) {
{ "theme=", &result->widgetStyle },
});
}
const FFQtResult* ffDetectQt(void) {
static FFQtResult result;
static bool init = false;
if (init) {
return &result;
}
init = true;
ffStrbufInit(&result.widgetStyle);
ffStrbufInit(&result.colorScheme);
ffStrbufInit(&result.icons);
ffStrbufInit(&result.font);
ffStrbufInit(&result.wallpaper);
const FFDisplayServerResult* wmde = ffConnectDisplayServer();
if (ffStrbufIgnCaseEqualS(&wmde->dePrettyName, FF_DE_PRETTY_PLASMA)) {
detectPlasma(&result);
} else if (ffStrbufIgnCaseEqualS(&wmde->dePrettyName, FF_DE_PRETTY_LXQT)) {
detectLXQt(&result);
} else {
const char* qPlatformTheme = getenv("QT_QPA_PLATFORMTHEME");
if (qPlatformTheme && (ffStrEquals(qPlatformTheme, "qt5ct") || ffStrEquals(qPlatformTheme, "qt6ct"))) {
detectQtCt(qPlatformTheme[2], &result);
}
}
if (ffStrbufEqualS(&result.widgetStyle, "kvantum") || ffStrbufEqualS(&result.widgetStyle, "kvantum-dark")) {
ffStrbufClear(&result.widgetStyle);
detectKvantum(&result);
}
return &result;
}
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