renamed calculate to detect

src/common/detectPlasma.c

@@ -0,0 +1,116 @@
+#include "fastfetch.h"
+
+#include <string.h>
+#include <pthread.h>
+
+typedef enum PlasmaCategory
+{
+    PLASMA_CATEGORY_GENERAL,
+    PLASMA_CATEGORY_KDE,
+    PLASMA_CATEGORY_ICONS,
+    PLASMA_CATEGORY_OTHER
+} PlasmaCategory;
+
+const FFPlasmaResult* ffDetectPlasma(FFinstance* instance)
+{
+    static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+    static FFPlasmaResult result;
+    static bool init = false;
+    pthread_mutex_lock(&mutex);
+    if(init)
+    {
+        pthread_mutex_unlock(&mutex);
+        return &result;
+    }
+    init = true;
+
+    ffStrbufInit(&result.widgetStyle);
+    ffStrbufInit(&result.colorScheme);
+    ffStrbufInit(&result.icons);
+    ffStrbufInit(&result.font);
+
+    FF_STRBUF_CREATE(kdeglobalsFile);
+    ffStrbufAppendS(&kdeglobalsFile, instance->state.passwd->pw_dir);
+    ffStrbufAppendS(&kdeglobalsFile, "/.config/kdeglobals");
+
+    FILE* kdeglobals = fopen(kdeglobalsFile.chars, "r");
+    if(kdeglobals == NULL)
+    {
+        ffStrbufDestroy(&kdeglobalsFile);
+        pthread_mutex_unlock(&mutex);
+        return &result;
+    }
+
+    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, "[%[^]]", categoryName);
+
+            if(strcasecmp(categoryName, "General") == 0)
+                category = PLASMA_CATEGORY_GENERAL;
+            else if(strcasecmp(categoryName, "KDE") == 0)
+                category = PLASMA_CATEGORY_KDE;
+            else if(strcasecmp(categoryName, "Icons") == 0)
+                category = PLASMA_CATEGORY_ICONS;
+            else
+                category = PLASMA_CATEGORY_OTHER;
+
+            continue;
+        }
+
+        if(category == PLASMA_CATEGORY_KDE)
+        {
+            sscanf(line, "widgetStyle=%[^\n]", result.widgetStyle.chars);
+            sscanf(line, "widgetStyle=\"%[^\"]+", result.widgetStyle.chars);
+        }
+        else if(category == PLASMA_CATEGORY_GENERAL)
+        {
+            sscanf(line, "ColorScheme=%[^\n]", result.colorScheme.chars);
+            sscanf(line, "ColorScheme=\"%[^\"]+", result.colorScheme.chars);
+
+            sscanf(line, "font=%[^\n]", result.font.chars);
+            sscanf(line, "font=\"%[^\"]+", result.font.chars);
+        }
+        else if(category == PLASMA_CATEGORY_ICONS)
+        {
+            sscanf(line, "Theme=%[^\n]", result.icons.chars);
+            sscanf(line, "Theme=\"%[^\"]+", result.icons.chars);
+        }
+    }
+
+    ffStrbufRecalculateLength(&result.widgetStyle);
+    ffStrbufRecalculateLength(&result.colorScheme);
+    ffStrbufRecalculateLength(&result.icons);
+    ffStrbufRecalculateLength(&result.font);
+
+    if(line != NULL)
+        free(line);
+
+    fclose(kdeglobals);
+    ffStrbufDestroy(&kdeglobalsFile);
+
+    //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");
+
+    pthread_mutex_unlock(&mutex);
+
+    return &result;
+}