hyprbars: add an option to blur the bar

fixes #61

hyprbars/BarPassElement.cpp

@@ -11,7 +11,19 @@ void CBarPassElement::draw(const CRegion& damage) {
 }
 
 bool CBarPassElement::needsLiveBlur() {
-    return false;
+    static auto* const PCOLOR            = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprbars:bar_color")->getDataStaticPtr();
+    static auto* const PENABLEBLUR       = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprbars:bar_blur")->getDataStaticPtr();
+    static auto* const PENABLEBLURGLOBAL = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "decoration:blur:enabled")->getDataStaticPtr();
+
+    CHyprColor         color = data.deco->m_bForcedBarColor.value_or(**PCOLOR);
+    color.a *= data.a;
+    const bool SHOULDBLUR = **PENABLEBLUR && **PENABLEBLURGLOBAL && color.a < 1.F;
+
+    return SHOULDBLUR;
+}
+
+std::optional<CBox> CBarPassElement::boundingBox() {
+    return data.deco->assignedBoxGlobal().translate(-g_pHyprOpenGL->m_RenderData.pMonitor->vecPosition);
 }
 
 bool CBarPassElement::needsPrecomputeBlur() {

hyprbars/BarPassElement.hpp

@@ -16,6 +16,7 @@ class CBarPassElement : public IPassElement {
     virtual void                draw(const CRegion& damage);
     virtual bool                needsLiveBlur();
     virtual bool                needsPrecomputeBlur();
+    virtual std::optional<CBox> boundingBox();
 
     virtual const char*         passName() {
         return "CBarPassElement";

hyprbars/README.md

@@ -26,6 +26,8 @@ plugin {
 
 `bar_height` -> (int) bar's height (default `15`)
 
+`bar_blur` -> (bool) whether to blur the bar. Also requires the global blur to be enabled.
+
 `col.text` -> (col) bar's title text color
 
 `bar_title_enabled` -> (bool) whether to render the title (default `true`)

hyprbars/barDeco.cpp

@@ -414,8 +414,13 @@ void CHyprBar::renderPass(PHLMONITOR pMonitor, const float& a) {
     static auto* const PPRECEDENCE       = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprbars:bar_precedence_over_border")->getDataStaticPtr();
     static auto* const PALIGNBUTTONS     = (Hyprlang::STRING const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprbars:bar_buttons_alignment")->getDataStaticPtr();
     static auto* const PENABLETITLE      = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprbars:bar_title_enabled")->getDataStaticPtr();
+    static auto* const PENABLEBLUR       = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "plugin:hyprbars:bar_blur")->getDataStaticPtr();
+    static auto* const PENABLEBLURGLOBAL = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, "decoration:blur:enabled")->getDataStaticPtr();
 
+    CHyprColor         color = m_bForcedBarColor.value_or(**PCOLOR);
+    color.a *= a;
     const bool BUTTONSRIGHT = std::string{*PALIGNBUTTONS} != "left";
+    const bool SHOULDBLUR   = **PENABLEBLUR && **PENABLEBLURGLOBAL && color.a < 1.F;
 
     if (**PHEIGHT < 1) {
         m_iLastHeight = **PHEIGHT;
@@ -429,9 +434,6 @@ void CHyprBar::renderPass(PHLMONITOR pMonitor, const float& a) {
 
     const auto scaledRounding = ROUNDING > 0 ? ROUNDING * pMonitor->scale - 2 /* idk why but otherwise it looks bad due to the gaps */ : 0;
 
-    CHyprColor color = m_bForcedBarColor.value_or(**PCOLOR);
-    color.a *= a;
-
     m_seExtents = {{0, **PHEIGHT}, {}};
 
     const auto DECOBOX = assignedBoxGlobal();
@@ -475,6 +477,9 @@ void CHyprBar::renderPass(PHLMONITOR pMonitor, const float& a) {
         glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
     }
 
+    if (SHOULDBLUR)
+        g_pHyprOpenGL->renderRectWithBlur(&titleBarBox, color, scaledRounding, a);
+    else
         g_pHyprOpenGL->renderRect(&titleBarBox, color, scaledRounding);
 
     // render title

hyprbars/main.cpp

@@ -111,6 +111,7 @@ APICALL EXPORT PLUGIN_DESCRIPTION_INFO PLUGIN_INIT(HANDLE handle) {
     HyprlandAPI::addConfigValue(PHANDLE, "plugin:hyprbars:col.text", Hyprlang::INT{*configStringToInt("rgba(ffffffff)")});
     HyprlandAPI::addConfigValue(PHANDLE, "plugin:hyprbars:bar_text_size", Hyprlang::INT{10});
     HyprlandAPI::addConfigValue(PHANDLE, "plugin:hyprbars:bar_title_enabled", Hyprlang::INT{1});
+    HyprlandAPI::addConfigValue(PHANDLE, "plugin:hyprbars:bar_blur", Hyprlang::INT{0});
     HyprlandAPI::addConfigValue(PHANDLE, "plugin:hyprbars:bar_text_font", Hyprlang::STRING{"Sans"});
     HyprlandAPI::addConfigValue(PHANDLE, "plugin:hyprbars:bar_text_align", Hyprlang::STRING{"center"});
     HyprlandAPI::addConfigValue(PHANDLE, "plugin:hyprbars:bar_part_of_window", Hyprlang::INT{1});