LibGUI: Remove leading G from filenames

1 files changed, 123 insertions, 0 deletions

diff --git a/Libraries/LibGUI/Slider.h b/Libraries/LibGUI/Slider.h
new file mode 100644
index 0000000000..3bd8611497
--- /dev/null
+++ b/Libraries/LibGUI/Slider.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <LibGUI/Widget.h>
+
+namespace GUI {
+
+class Slider : public Widget {
+    C_OBJECT(Slider)
+public:
+    enum class KnobSizeMode {
+        Fixed,
+        Proportional,
+    };
+
+    virtual ~Slider() override;
+
+    Orientation orientation() const { return m_orientation; }
+
+    int value() const { return m_value; }
+    int min() const { return m_min; }
+    int max() const { return m_max; }
+
+    void set_range(int min, int max);
+    void set_value(int);
+
+    void set_min(int min) { set_range(min, max()); }
+    void set_max(int max) { set_range(min(), max); }
+
+    void set_knob_size_mode(KnobSizeMode mode) { m_knob_size_mode = mode; }
+    KnobSizeMode knob_size_mode() const { return m_knob_size_mode; }
+
+    int track_size() const { return 2; }
+    int knob_fixed_primary_size() const { return 8; }
+    int knob_secondary_size() const { return 20; }
+
+    bool knob_dragging() const { return m_dragging; }
+    Gfx::Rect knob_rect() const;
+
+    Gfx::Rect inner_rect() const
+    {
+        if (orientation() == Orientation::Horizontal)
+            return rect().shrunken(20, 0);
+        return rect().shrunken(0, 20);
+    }
+
+    Function<void(int)> on_value_changed;
+
+protected:
+    explicit Slider(Widget*);
+    explicit Slider(Orientation, Widget*);
+
+    virtual void paint_event(PaintEvent&) override;
+    virtual void mousedown_event(MouseEvent&) override;
+    virtual void mousemove_event(MouseEvent&) override;
+    virtual void mouseup_event(MouseEvent&) override;
+    virtual void leave_event(Core::Event&) override;
+    virtual void change_event(Event&) override;
+
+private:
+    void set_knob_hovered(bool);
+
+    int m_value { 0 };
+    int m_min { 0 };
+    int m_max { 100 };
+    bool m_knob_hovered { false };
+    bool m_dragging { false };
+    int m_drag_origin_value { 0 };
+    Gfx::Point m_drag_origin;
+    KnobSizeMode m_knob_size_mode { KnobSizeMode::Fixed };
+    Orientation m_orientation { Orientation::Horizontal };
+};
+
+class VerticalSlider final : public Slider {
+    C_OBJECT(VerticalSlider)
+public:
+    virtual ~VerticalSlider() override {}
+
+private:
+    explicit VerticalSlider(Widget* parent)
+        : Slider(Orientation::Vertical, parent)
+    {
+    }
+};
+
+class HorizontalSlider final : public Slider {
+    C_OBJECT(HorizontalSlider)
+public:
+    virtual ~HorizontalSlider() override {}
+
+private:
+    explicit HorizontalSlider(Widget* parent)
+        : Slider(Orientation::Horizontal, parent)
+    {
+    }
+};
+
+}