Cairo example (#108)

* Rewrite the Cairo example in matching code style

* Use of ScopedPointer in the Cairo example

11 files changed, 192 insertions, 215 deletions

diff --git a/examples/CairoUI/CairoExamplePlugin.cpp b/examples/CairoUI/CairoExamplePlugin.cpp
new file mode 100644
index 00000000..b6df8799
--- /dev/null
+++ b/examples/CairoUI/CairoExamplePlugin.cpp
@@ -0,0 +1,89 @@
+/*
+ * DISTRHO Plugin Framework (DPF)
+ * Copyright (C) 2012-2019 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 "DistrhoPlugin.hpp"
+
+#include <string.h>
+
+START_NAMESPACE_DISTRHO
+
+class CairoExamplePlugin : public Plugin
+{
+public:
+    CairoExamplePlugin()
+        : Plugin(0, 0, 0)
+    {
+    }
+
+    const char* getLabel() const
+    {
+        return "Cairo DPF Example";
+    }
+
+    const char* getMaker() const
+    {
+        return "Jean Pierre Cimalando";
+    }
+
+    const char* getLicense() const
+    {
+        return "ISC";
+    }
+
+    uint32_t getVersion() const
+    {
+        return 0;
+    }
+
+    int64_t getUniqueId() const
+    {
+        return 0;
+    }
+
+    void initParameter(uint32_t index, Parameter& parameter)
+    {
+        // unused
+        (void)index;
+        (void)parameter;
+    }
+
+    float getParameterValue(uint32_t index) const
+    {
+        return 0;
+
+        // unused
+        (void)index;
+    }
+
+    void setParameterValue(uint32_t index, float value)
+    {
+        // unused
+        (void)index;
+        (void)value;
+    }
+
+    void run(const float** inputs, float** outputs, uint32_t frames)
+    {
+        memcpy(outputs[0], inputs[0], frames * sizeof(float));
+    }
+};
+
+Plugin* createPlugin()
+{
+    return new CairoExamplePlugin;
+}
+
+END_NAMESPACE_DISTRHO
diff --git a/examples/CairoUI/CairoExampleUI.cpp b/examples/CairoUI/CairoExampleUI.cpp
new file mode 100644
index 00000000..cd80d10e
--- /dev/null
+++ b/examples/CairoUI/CairoExampleUI.cpp
@@ -0,0 +1,70 @@
+/*
+ * DISTRHO Plugin Framework (DPF)
+ * Copyright (C) 2012-2019 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 "DistrhoUI.hpp"
+#include "DemoWidgetBanner.hpp"
+#include "DemoWidgetClickable.hpp"
+#include "Window.hpp"
+
+START_NAMESPACE_DISTRHO
+
+class CairoExampleUI : public UI
+{
+public:
+    CairoExampleUI()
+        : UI(200, 200)
+    {
+        DemoWidgetClickable* widgetClickable = new DemoWidgetClickable(this);
+        fWidgetClickable = widgetClickable;
+        widgetClickable->setSize(50, 50);
+        widgetClickable->setAbsolutePos(100, 100);
+
+        DemoWidgetBanner* widgetBanner = new DemoWidgetBanner(this);
+        fWidgetBanner = widgetBanner;
+        widgetBanner->setSize(180, 80);
+        widgetBanner->setAbsolutePos(10, 10);
+    }
+
+    ~CairoExampleUI()
+    {
+    }
+
+    void onDisplay()
+    {
+        cairo_t* cr = getParentWindow().getGraphicsContext().cairo;
+
+        cairo_set_source_rgb(cr, 1.0, 0.8, 0.5);
+        cairo_paint(cr);
+    }
+
+    void parameterChanged(uint32_t index, float value)
+    {
+        // unused
+        (void)index;
+        (void)value;
+    }
+
+private:
+    ScopedPointer<DemoWidgetClickable> fWidgetClickable;
+    ScopedPointer<DemoWidgetBanner> fWidgetBanner;
+};
+
+UI* createUI()
+{
+    return new CairoExampleUI;
+}
+
+END_NAMESPACE_DISTRHO
diff --git a/examples/CairoUI/DemoWidgetBanner.cc b/examples/CairoUI/DemoWidgetBanner.cpp
index 7ed1cd6c..56a631dd 100644
--- a/examples/CairoUI/DemoWidgetBanner.cc
+++ b/examples/CairoUI/DemoWidgetBanner.cpp
@@ -14,12 +14,12 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include "DemoWidgetBanner.h"
+#include "DemoWidgetBanner.hpp"
 
 #include "Cairo.hpp"
 #include "Window.hpp"
 
-static const char *banner =
+static const char* banner =
 "                                                                        "
 "  *     *               *                                 *     *       "
 "  **   **               *                           *     *     *       "
@@ -44,19 +44,20 @@ static const char *banner =
 "                          *****   *      *                              "
 "                                                                        ";
 
-enum {
+enum
+{
     rows = 23,
     columns = 72,
 };
 
-DemoWidgetBanner::DemoWidgetBanner(Widget *group)
+DemoWidgetBanner::DemoWidgetBanner(Widget* group)
     : Widget(group)
 {
 }
 
 void DemoWidgetBanner::onDisplay()
 {
-    cairo_t *cr = getParentWindow().getGraphicsContext().cairo;
+    cairo_t* cr = getParentWindow().getGraphicsContext().cairo;
 
     Point<int> pt = getAbsolutePos();
     Size<uint> sz = getSize();
@@ -70,8 +71,10 @@ void DemoWidgetBanner::onDisplay()
     double radius = 0.5 * diameter;
     double xoff = 0;
     double yoff = 0.5 * (h - rows * diameter);
-    for (int r = 0; r < rows; ++r) {
-        for (int c = 0; c < columns; ++c) {
+    for (int r = 0; r < rows; ++r)
+    {
+        for (int c = 0; c < columns; ++c)
+        {
             double cx = x + xoff + radius + c * diameter;
             double cy = y + yoff + radius + r * diameter;
 
diff --git a/examples/CairoUI/DemoWidgetBanner.h b/examples/CairoUI/DemoWidgetBanner.hpp
index f6cbe442..86ad496a 100644
--- a/examples/CairoUI/DemoWidgetBanner.h
+++ b/examples/CairoUI/DemoWidgetBanner.hpp
@@ -16,8 +16,9 @@
 
 #include "Widget.hpp"
 
-class DemoWidgetBanner : public Widget {
+class DemoWidgetBanner : public Widget
+{
 public:
-    explicit DemoWidgetBanner(Widget *group);
+    explicit DemoWidgetBanner(Widget* group);
     void onDisplay() override;
 };
diff --git a/examples/CairoUI/DemoWidgetClickable.cc b/examples/CairoUI/DemoWidgetClickable.cpp
index 4af38f95..98ad4d6c 100644
--- a/examples/CairoUI/DemoWidgetClickable.cc
+++ b/examples/CairoUI/DemoWidgetClickable.cpp
@@ -14,19 +14,19 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include "DemoWidgetClickable.h"
+#include "DemoWidgetClickable.hpp"
 
 #include "Cairo.hpp"
 #include "Window.hpp"
 
-DemoWidgetClickable::DemoWidgetClickable(Widget *group)
+DemoWidgetClickable::DemoWidgetClickable(Widget* group)
     : Widget(group)
 {
 }
 
 void DemoWidgetClickable::onDisplay()
 {
-    cairo_t *cr = getParentWindow().getGraphicsContext().cairo;
+    cairo_t* cr = getParentWindow().getGraphicsContext().cairo;
 
     Point<int> pt = getAbsolutePos();
     Size<uint> sz = getSize();
@@ -36,7 +36,8 @@ void DemoWidgetClickable::onDisplay()
     int w = sz.getWidth();
     int h = sz.getHeight();
 
-    switch (colorid_) {
+    switch (fColorId)
+    {
     case 0:
         cairo_set_source_rgb(cr, 0.75, 0.0, 0.0);
         break;
@@ -61,17 +62,19 @@ void DemoWidgetClickable::onDisplay()
     cairo_stroke(cr);
 }
 
-bool DemoWidgetClickable::onMouse(const MouseEvent &event)
+bool DemoWidgetClickable::onMouse(const MouseEvent& event)
 {
-    if (event.press) {
+    if (event.press)
+    {
         int w = getWidth();
         int h = getHeight();
         int mx = event.pos.getX();
         int my = event.pos.getY();
 
         bool inside = mx >= 0 && my >= 0 && mx < w && my < h;
-        if (inside) {
-            colorid_ = (colorid_ + 1) % 3;
+        if (inside)
+        {
+            fColorId = (fColorId + 1) % 3;
             repaint();
         }
     }
diff --git a/examples/CairoUI/DemoWidgetClickable.h b/examples/CairoUI/DemoWidgetClickable.hpp
index 39b6afc6..425e773b 100644
--- a/examples/CairoUI/DemoWidgetClickable.h
+++ b/examples/CairoUI/DemoWidgetClickable.hpp
@@ -16,12 +16,13 @@
 
 #include "Widget.hpp"
 
-class DemoWidgetClickable : public Widget {
+class DemoWidgetClickable : public Widget
+{
 public:
-    explicit DemoWidgetClickable(Widget *group);
+    explicit DemoWidgetClickable(Widget* group);
     void onDisplay() override;
-    bool onMouse(const MouseEvent &event) override;
+    bool onMouse(const MouseEvent& event) override;
 
 private:
-    unsigned colorid_ = 0;
+    unsigned fColorId = 0;
 };
diff --git a/examples/CairoUI/Makefile b/examples/CairoUI/Makefile
index fc339040..5a954bdb 100644
--- a/examples/CairoUI/Makefile
+++ b/examples/CairoUI/Makefile
@@ -13,12 +13,12 @@ NAME = d_cairoui
 # Files to build
 
 FILES_DSP = \
-	PluginMain.cc
+	CairoExamplePlugin.cpp
 
 FILES_UI  = \
-	DemoWidgetBanner.cc \
-	DemoWidgetClickable.cc \
-	PluginUI.cc
+	DemoWidgetBanner.cpp \
+	DemoWidgetClickable.cpp \
+	CairoExampleUI.cpp
 
 # --------------------------------------------------------------
 # Do some magic
diff --git a/examples/CairoUI/PluginMain.cc b/examples/CairoUI/PluginMain.cc
deleted file mode 100644
index 5d9cf12f..00000000
--- a/examples/CairoUI/PluginMain.cc
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * DISTRHO Plugin Framework (DPF)
- * Copyright (C) 2012-2019 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 "PluginMain.h"
-#include <string.h>
-
-ExamplePlugin::ExamplePlugin()
-    : Plugin(0, 0, 0)
-{
-}
-
-const char *ExamplePlugin::getLabel() const
-{
-    return "Cairo DPF Example";
-}
-
-const char *ExamplePlugin::getMaker() const
-{
-    return "Jean Pierre Cimalando";
-}
-
-const char *ExamplePlugin::getLicense() const
-{
-    return "ISC";
-}
-
-uint32_t ExamplePlugin::getVersion() const
-{
-    return 0;
-}
-
-int64_t ExamplePlugin::getUniqueId() const
-{
-    return 0;
-}
-
-void ExamplePlugin::initParameter(uint32_t, Parameter &)
-{
-}
-
-float ExamplePlugin::getParameterValue(uint32_t) const
-{
-    return 0;
-}
-
-void ExamplePlugin::setParameterValue(uint32_t, float)
-{
-}
-
-void ExamplePlugin::run(const float **inputs, float **outputs, uint32_t frames)
-{
-    memcpy(outputs[0], inputs[0], frames * sizeof(float));
-}
-
-Plugin *DISTRHO::createPlugin()
-{
-    return new ExamplePlugin;
-}
diff --git a/examples/CairoUI/PluginMain.h b/examples/CairoUI/PluginMain.h
deleted file mode 100644
index c444bc21..00000000
--- a/examples/CairoUI/PluginMain.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * DISTRHO Plugin Framework (DPF)
- * Copyright (C) 2012-2019 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 "DistrhoPlugin.hpp"
-
-class ExamplePlugin : public Plugin {
-public:
-    ExamplePlugin();
-    const char *getLabel() const override;
-    const char *getMaker() const override;
-    const char *getLicense() const override;
-    uint32_t getVersion() const override;
-    int64_t getUniqueId() const override;
-    void initParameter(uint32_t index, Parameter &parameter) override;
-    float getParameterValue(uint32_t index) const override;
-    void setParameterValue(uint32_t index, float value) override;
-    void run(const float **inputs, float **outputs, uint32_t frames) override;
-};
diff --git a/examples/CairoUI/PluginUI.cc b/examples/CairoUI/PluginUI.cc
deleted file mode 100644
index 8b666f3e..00000000
--- a/examples/CairoUI/PluginUI.cc
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * DISTRHO Plugin Framework (DPF)
- * Copyright (C) 2012-2019 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 "PluginUI.h"
-#include "DemoWidgetClickable.h"
-#include "DemoWidgetBanner.h"
-
-#include "Window.hpp"
-
-ExampleUI::ExampleUI()
-    : UI(200, 200)
-{
-    DemoWidgetClickable *widget_clickable = new DemoWidgetClickable(this);
-    widget_clickable_.reset(widget_clickable);
-    widget_clickable->setSize(50, 50);
-    widget_clickable->setAbsolutePos(100, 100);
-
-    DemoWidgetBanner *widget_banner = new DemoWidgetBanner(this);
-    widget_banner_.reset(widget_banner);
-    widget_banner->setSize(180, 80);
-    widget_banner->setAbsolutePos(10, 10);
-}
-
-ExampleUI::~ExampleUI()
-{
-}
-
-void ExampleUI::onDisplay()
-{
-    cairo_t *cr = getParentWindow().getGraphicsContext().cairo;
-
-    cairo_set_source_rgb(cr, 1.0, 0.8, 0.5);
-    cairo_paint(cr);
-}
-
-void ExampleUI::parameterChanged(uint32_t, float)
-{
-}
-
-UI *DISTRHO::createUI()
-{
-    return new ExampleUI;
-}
diff --git a/examples/CairoUI/PluginUI.h b/examples/CairoUI/PluginUI.h
deleted file mode 100644
index d296c46f..00000000
--- a/examples/CairoUI/PluginUI.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * DISTRHO Plugin Framework (DPF)
- * Copyright (C) 2012-2019 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 "DistrhoUI.hpp"
-#include <memory>
-class DemoWidgetClickable;
-class DemoWidgetBanner;
-
-class ExampleUI : public UI {
-public:
-    ExampleUI();
-    ~ExampleUI();
-    void onDisplay() override;
-    void parameterChanged(uint32_t index, float value) override;
-
-private:
-    std::unique_ptr<DemoWidgetClickable> widget_clickable_;
-    std::unique_ptr<DemoWidgetBanner> widget_banner_;
- };