core: add tile as an image mode (#207)

---------

Co-authored-by: gkdwoe <gkdwoe>

README.md

@@ -4,7 +4,7 @@ Hyprpaper is a blazing fast wallpaper utility for Hyprland with the ability to d
 
 # Features
  - Per-output wallpapers
- - fill or contain modes
+ - fill, tile or contain modes
  - fractional scaling support
  - IPC for blazing fast wallpaper switches
  - preloading targets into memory
@@ -91,7 +91,7 @@ splash = true
 
 Preload will tell Hyprland to load a particular image (supported formats: png, jpg, jpeg, webp). Wallpaper will apply the wallpaper to the selected output (`monitor` is the monitor's name, easily can be retrieved with `hyprctl monitors`. You can leave it empty to set all monitors without an active wallpaper. You can also use `desc:` followed by the monitor's description without the (PORT) at the end)
 
-You may add `contain:` before the file path in `wallpaper=` to set the mode to contain instead of cover:
+You may add `contain:` or `tile:` before the file path in `wallpaper=` to set the mode to either contain or tile, respectively, instead of cover:
 
 ```
 wallpaper = monitor,contain:/path/to/image.jpg

src/Hyprpaper.cpp

@@ -515,6 +515,7 @@ void CHyprpaper::renderWallpaperForMonitor(SMonitor* pMonitor) {
 
     const auto PWALLPAPERTARGET = m_mMonitorActiveWallpaperTargets[pMonitor];
     const auto CONTAIN          = m_mMonitorWallpaperRenderData[pMonitor->name].contain;
+    const auto TILE             = m_mMonitorWallpaperRenderData[pMonitor->name].tile;
 
     if (!PWALLPAPERTARGET) {
         Debug::log(CRIT, "wallpaper target null in render??");
@@ -567,8 +568,14 @@ void CHyprpaper::renderWallpaperForMonitor(SMonitor* pMonitor) {
     Debug::log(LOG, "Image data for %s: %s at [%.2f, %.2f], scale: %.2f (original image size: [%i, %i])", pMonitor->name.c_str(), PWALLPAPERTARGET->m_szPath.c_str(), origin.x,
                origin.y, scale, (int)PWALLPAPERTARGET->m_vSize.x, (int)PWALLPAPERTARGET->m_vSize.y);
 
-    cairo_scale(PCAIRO, scale, scale);
-    cairo_set_source_surface(PCAIRO, PWALLPAPERTARGET->m_pCairoSurface, origin.x, origin.y);
+    if (TILE) {
+        cairo_pattern_t* pattern = cairo_pattern_create_for_surface(PWALLPAPERTARGET->m_pCairoSurface);
+        cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
+        cairo_set_source(PCAIRO, pattern);
+    } else {
+        cairo_scale(PCAIRO, scale, scale);
+        cairo_set_source_surface(PCAIRO, PWALLPAPERTARGET->m_pCairoSurface, origin.x, origin.y);
+    }
 
     cairo_paint(PCAIRO);
 

src/Hyprpaper.hpp

@@ -18,6 +18,7 @@
 
 struct SWallpaperRenderData {
     bool contain = false;
+    bool tile = false;
 };
 
 class CHyprpaper {

src/config/ConfigManager.cpp

@@ -4,8 +4,8 @@
 #include <filesystem>
 
 static Hyprlang::CParseResult handleWallpaper(const char* C, const char* V) {
-    const std::string COMMAND = C;
-    const std::string VALUE = V;
+    const std::string      COMMAND = C;
+    const std::string      VALUE   = V;
     Hyprlang::CParseResult result;
 
     if (VALUE.find_first_of(',') == std::string::npos) {
@@ -23,6 +23,13 @@ static Hyprlang::CParseResult handleWallpaper(const char* C, const char* V) {
         contain   = true;
     }
 
+    bool tile = false;
+
+    if (WALLPAPER.find("tile:") == 0) {
+        WALLPAPER = WALLPAPER.substr(5);
+        tile      = true;
+    }
+
     if (WALLPAPER[0] == '~') {
         static const char* const ENVHOME = getenv("HOME");
         WALLPAPER                        = std::string(ENVHOME) + WALLPAPER.substr(1);
@@ -44,6 +51,7 @@ static Hyprlang::CParseResult handleWallpaper(const char* C, const char* V) {
     g_pHyprpaper->clearWallpaperFromMonitor(MONITOR);
     g_pHyprpaper->m_mMonitorActiveWallpapers[MONITOR]            = WALLPAPER;
     g_pHyprpaper->m_mMonitorWallpaperRenderData[MONITOR].contain = contain;
+    g_pHyprpaper->m_mMonitorWallpaperRenderData[MONITOR].tile    = tile;
 
     if (MONITOR.empty()) {
         for (auto& m : g_pHyprpaper->m_vMonitors) {
@@ -51,6 +59,7 @@ static Hyprlang::CParseResult handleWallpaper(const char* C, const char* V) {
                 g_pHyprpaper->clearWallpaperFromMonitor(m->name);
                 g_pHyprpaper->m_mMonitorActiveWallpapers[m->name]            = WALLPAPER;
                 g_pHyprpaper->m_mMonitorWallpaperRenderData[m->name].contain = contain;
+                g_pHyprpaper->m_mMonitorWallpaperRenderData[m->name].tile    = tile;
             }
         }
     } else {
@@ -141,6 +150,9 @@ static Hyprlang::CParseResult handleReload(const char* C, const char* V) {
         WALLPAPER = WALLPAPER.substr(8);
     }
 
+    if (WALLPAPER.find("tile:") == 0)
+        WALLPAPER = WALLPAPER.substr(5);
+
     auto preloadResult = handlePreload(C, WALLPAPER.c_str());
     if (preloadResult.error)
         return preloadResult;