From bf432f8a3ad08d905dfda7c47218f285cefa8e33 Mon Sep 17 00:00:00 2001
From: thankyouverycool <66646555+thankyouverycool@users.noreply.github.com>
Date: Wed, 10 Mar 2021 11:54:09 -0500
Subject: [PATCH] LibGUI: Add opacity to ImageWidget

---
 Userland/Libraries/LibGUI/ImageWidget.cpp | 14 ++++++++++++--
 Userland/Libraries/LibGUI/ImageWidget.h   |  5 +++++
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/Userland/Libraries/LibGUI/ImageWidget.cpp b/Userland/Libraries/LibGUI/ImageWidget.cpp
index 019994224e..deb6e94d68 100644
--- a/Userland/Libraries/LibGUI/ImageWidget.cpp
+++ b/Userland/Libraries/LibGUI/ImageWidget.cpp
@@ -128,12 +128,22 @@ void ImageWidget::paint_event(PaintEvent& event)
     }
 
     Painter painter(*this);
+    painter.add_clip_rect(event.rect());
 
     if (m_should_stretch) {
-        painter.draw_scaled_bitmap(frame_inner_rect(), *m_bitmap, m_bitmap->rect());
+        painter.draw_scaled_bitmap(frame_inner_rect(), *m_bitmap, m_bitmap->rect(), (float)opacity_percent() / 100.0f);
     } else {
         auto location = frame_inner_rect().center().translated(-(m_bitmap->width() / 2), -(m_bitmap->height() / 2));
-        painter.blit(location, *m_bitmap, m_bitmap->rect());
+        painter.blit(location, *m_bitmap, m_bitmap->rect(), (float)opacity_percent() / 100.0f);
     }
 }
+
+void ImageWidget::set_opacity_percent(int percent)
+{
+    if (m_opacity_percent == percent)
+        return;
+    m_opacity_percent = percent;
+    update();
+}
+
 }
diff --git a/Userland/Libraries/LibGUI/ImageWidget.h b/Userland/Libraries/LibGUI/ImageWidget.h
index 6ee492ed50..8433368639 100644
--- a/Userland/Libraries/LibGUI/ImageWidget.h
+++ b/Userland/Libraries/LibGUI/ImageWidget.h
@@ -48,6 +48,9 @@ public:
     void animate();
     void load_from_file(const StringView&);
 
+    int opacity_percent() const { return m_opacity_percent; }
+    void set_opacity_percent(int percent);
+
     Function<void()> on_click;
 
 protected:
@@ -65,6 +68,8 @@ private:
     size_t m_current_frame_index { 0 };
     size_t m_loops_completed { 0 };
     NonnullRefPtr<Core::Timer> m_timer;
+
+    int m_opacity_percent { 100 };
 };
 
 }