Add ImageSwitch class

dgl/ImageSwitch.hpp

@@ -0,0 +1,68 @@
+/*
+ * DISTRHO Plugin Framework (DPF)
+ * Copyright (C) 2012-2014 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_IMAGE_SWITCH_HPP_INCLUDED
+#define DGL_IMAGE_SWITCH_HPP_INCLUDED
+
+#include "Image.hpp"
+#include "Widget.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+class ImageSwitch : public Widget
+{
+public:
+    class Callback
+    {
+    public:
+        virtual ~Callback() {}
+        virtual void imageSwitchClicked(ImageSwitch* imageButton, bool down) = 0;
+    };
+
+    explicit ImageSwitch(Window& parent, const Image& imageNormal, const Image& imageDown, int id = 0) noexcept;
+    explicit ImageSwitch(Widget* widget, const Image& imageNormal, const Image& imageDown, int id = 0) noexcept;
+    explicit ImageSwitch(const ImageSwitch& imageSwitch) noexcept;
+
+    int getId() const noexcept;
+    void setId(int id) noexcept;
+
+    bool isDown() const noexcept;
+    void setDown(bool down) noexcept;
+
+    void setCallback(Callback* callback) noexcept;
+
+protected:
+     void onDisplay() override;
+     bool onMouse(const MouseEvent&) override;
+
+private:
+    Image fImageNormal;
+    Image fImageDown;
+    bool  fIsDown;
+    int   fId;
+
+    Callback* fCallback;
+
+    DISTRHO_LEAK_DETECTOR(ImageSwitch)
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_IMAGE_SWITCH_HPP_INCLUDED

dgl/Makefile

@@ -22,6 +22,7 @@ OBJS = \
 	src/ImageButton.cpp.o \
 	src/ImageKnob.cpp.o \
 	src/ImageSlider.cpp.o \
+	src/ImageSwitch.cpp.o \
 	src/Widget.cpp.o
 
 ifeq ($(MACOS),true)

dgl/src/ImageSwitch.cpp

@@ -0,0 +1,118 @@
+/*
+ * DISTRHO Plugin Framework (DPF)
+ * Copyright (C) 2012-2014 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../ImageSwitch.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+ImageSwitch::ImageSwitch(Window& parent, const Image& imageNormal, const Image& imageDown, int id) noexcept
+    : Widget(parent),
+      fImageNormal(imageNormal),
+      fImageDown(imageDown),
+      fIsDown(false),
+      fId(id),
+      fCallback(nullptr)
+{
+    DISTRHO_SAFE_ASSERT(fImageNormal.getSize() == fImageDown.getSize());
+
+    setSize(fImageNormal.getSize());
+}
+
+ImageSwitch::ImageSwitch(Widget* widget, const Image& imageNormal, const Image& imageDown, int id) noexcept
+    : Widget(widget->getParentWindow()),
+      fImageNormal(imageNormal),
+      fImageDown(imageDown),
+      fIsDown(false),
+      fId(id),
+      fCallback(nullptr)
+{
+    DISTRHO_SAFE_ASSERT(fImageNormal.getSize() == fImageDown.getSize());
+
+    setSize(fImageNormal.getSize());
+}
+
+ImageSwitch::ImageSwitch(const ImageSwitch& imageSwitch) noexcept
+    : Widget(imageSwitch.getParentWindow()),
+      fImageNormal(imageSwitch.fImageNormal),
+      fImageDown(imageSwitch.fImageDown),
+      fIsDown(imageSwitch.fIsDown),
+      fId(imageSwitch.fId),
+      fCallback(imageSwitch.fCallback)
+{
+    DISTRHO_SAFE_ASSERT(fImageNormal.getSize() == fImageDown.getSize());
+
+    setSize(fImageNormal.getSize());
+}
+
+int ImageSwitch::getId() const noexcept
+{
+    return fId;
+}
+
+void ImageSwitch::setId(int id) noexcept
+{
+    fId = id;;
+}
+
+bool ImageSwitch::isDown() const noexcept
+{
+    return fIsDown;
+}
+
+void ImageSwitch::setDown(bool down) noexcept
+{
+    if (fIsDown == down)
+        return;
+
+    fIsDown = down;
+    repaint();
+}
+
+void ImageSwitch::setCallback(Callback* callback) noexcept
+{
+    fCallback = callback;
+}
+
+void ImageSwitch::onDisplay()
+{
+    if (fIsDown)
+        fImageNormal.draw();
+    else
+        fImageDown.draw();
+}
+
+bool ImageSwitch::onMouse(const MouseEvent& ev)
+{
+    if (ev.press && contains(ev.pos))
+    {
+        fIsDown = !fIsDown;
+
+        repaint();
+
+        if (fCallback != nullptr)
+            fCallback->imageSwitchClicked(this, fIsDown);
+
+        return true;
+    }
+
+    return false;
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL