From 9d2fbadd55a1c7c89660fcec430a945867ded527 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Mon, 21 Jun 2021 18:19:10 +0200
Subject: Add theme option to disable rounded rectangle drop shadow

---
 include/Theme.hpp                        |  2 ++
 shaders/rounded_rectangle_no_shadow.glsl | 24 ++++++++++++++++++++++++
 src/QuickMedia.cpp                       | 13 ++++++++++---
 src/Theme.cpp                            |  1 +
 4 files changed, 37 insertions(+), 3 deletions(-)
 create mode 100644 shaders/rounded_rectangle_no_shadow.glsl

diff --git a/include/Theme.hpp b/include/Theme.hpp
index e466931..653cfe9 100644
--- a/include/Theme.hpp
+++ b/include/Theme.hpp
@@ -33,6 +33,8 @@ namespace QuickMedia {
         sf::Color arrow_color;
         sf::Color url_text_color;
         sf::Color loading_page_color;
+
+        bool blur_enabled;
     };
 
     void init_themes();
diff --git a/shaders/rounded_rectangle_no_shadow.glsl b/shaders/rounded_rectangle_no_shadow.glsl
new file mode 100644
index 0000000..4fc32cf
--- /dev/null
+++ b/shaders/rounded_rectangle_no_shadow.glsl
@@ -0,0 +1,24 @@
+uniform float radius;
+uniform vec2 band_pos;
+uniform vec2 band_size;
+uniform vec4 band_color;
+uniform vec2 resolution;
+
+float rounded_rect(vec2 coord, vec2 size, float r) {
+	return length(max(abs(coord) - size+r, 0.0)) - r;
+}
+
+void main() {
+    vec2 shadow_offset = vec2(20.0, 20.0);
+    vec2 uv = gl_TexCoord[0].xy * resolution;
+    vec2 center = resolution * 0.5;
+    vec2 size = (resolution - shadow_offset * 2.0) * 0.5;
+
+    float rect_dist = rounded_rect(uv - center, size, radius);
+    float a = 1.0 - smoothstep(0.0, 2.0, rect_dist);
+    // same as: if(uv.x >= band_pos.x && uv.x <= band_pos.x + band_size.x && uv.y >= band_pos.y && uv.y <= band_pos.y + band_size.y)
+    vec2 band_blend = step(band_pos, uv) - step(band_pos + band_size, uv);
+    vec4 front_color = mix(gl_Color, band_color, band_blend.x*band_blend.y);
+    front_color.a *= a;
+    gl_FragColor = front_color;
+}
\ No newline at end of file
diff --git a/src/QuickMedia.cpp b/src/QuickMedia.cpp
index bcd9a53..e2d1d8c 100644
--- a/src/QuickMedia.cpp
+++ b/src/QuickMedia.cpp
@@ -666,9 +666,16 @@ namespace QuickMedia {
                 abort();
             }
 
-            if(!rounded_rectangle_shader.loadFromFile(resources_root + "shaders/rounded_rectangle.glsl", sf::Shader::Type::Fragment)) {
-                show_notification("QuickMedia", "Failed to load " + resources_root + "/shaders/rounded_rectangle.glsl", Urgency::CRITICAL);
-                abort();
+            if(get_current_theme().blur_enabled) {
+                if(!rounded_rectangle_shader.loadFromFile(resources_root + "shaders/rounded_rectangle.glsl", sf::Shader::Type::Fragment)) {
+                    show_notification("QuickMedia", "Failed to load " + resources_root + "/shaders/rounded_rectangle.glsl", Urgency::CRITICAL);
+                    abort();
+                }
+            } else {
+                if(!rounded_rectangle_shader.loadFromFile(resources_root + "shaders/rounded_rectangle_no_shadow.glsl", sf::Shader::Type::Fragment)) {
+                    show_notification("QuickMedia", "Failed to load " + resources_root + "/shaders/rounded_rectangle_no_shadow.glsl", Urgency::CRITICAL);
+                    abort();
+                }
             }
 
             if(!rounded_rectangle_mask_shader.loadFromFile(resources_root + "shaders/rounded_rectangle_mask.glsl", sf::Shader::Type::Fragment)) {
diff --git a/src/Theme.cpp b/src/Theme.cpp
index 1f4feca..6616721 100644
--- a/src/Theme.cpp
+++ b/src/Theme.cpp
@@ -32,6 +32,7 @@ namespace QuickMedia {
         themes[Theme::THEME_DARK].arrow_color = sf::Color(255, 255, 255, 175);
         themes[Theme::THEME_DARK].url_text_color = sf::Color(35, 140, 245);
         themes[Theme::THEME_DARK].loading_page_color = sf::Color(175, 180, 188);
+        themes[Theme::THEME_DARK].blur_enabled = true;
     }
 
     void init_themes() {
-- 
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