scrollbar, options and widgets changes

* complete scrollbar skin
* implement scrollbar functionality (scrolling with mouse)
* fix onMouseClick issues
* add tabs in options (graphics and general tab)
* add new option for limiting frame rate using scrollbar
* add new widget property "clipping" that will be used on scrollable areas

src/framework/application.cpp

@@ -57,6 +57,7 @@ Application::Application(const std::string& appName)
     g_app = this;
     m_appName = appName;
     m_pollCycleDelay = POLL_CYCLE_DELAY;
+    m_frameSleep = 0;
 }
 
 Application::~Application()
@@ -200,6 +201,9 @@ void Application::run()
             // sleeps until next poll to avoid massive cpu usage
             g_clock.sleep(POLL_CYCLE_DELAY+1);
         }
+
+        if(m_frameSleep > 0)
+            g_clock.sleep(m_frameSleep);
     }
 
     m_stopping = false;

src/framework/application.h

@@ -43,10 +43,13 @@ public:
     virtual void poll();
     virtual void close();
 
+    void setFrameSleep(int delay) { m_frameSleep = delay; }
     void setPollCycleDelay(int delay) { m_pollCycleDelay = delay; }
 
     bool isRunning() { return m_running; }
     bool isStopping() { return m_stopping; }
+    int getFrameSleep() { return m_frameSleep; }
+    int getPollCycleDelay() { return m_pollCycleDelay; }
     const std::string& getName() { return m_appName; }
     const std::string& getVersion() { return m_appVersion; }
 
@@ -64,6 +67,7 @@ protected:
     std::string m_appVersion;
     std::string m_appBuildDate;
     int m_appFlags;
+    int m_frameSleep;
     int m_pollCycleDelay;
     Boolean<false> m_initialized;
     Boolean<false> m_running;

src/framework/luafunctions.cpp

@@ -104,8 +104,10 @@ void Application::registerLuaFunctions()
     g_lua.bindClassMemberFunction<UIWidget>("setPhantom", &UIWidget::setPhantom);
     g_lua.bindClassMemberFunction<UIWidget>("setDragable", &UIWidget::setDragable);
     g_lua.bindClassMemberFunction<UIWidget>("setFixedSize", &UIWidget::setFixedSize);
+    g_lua.bindClassMemberFunction<UIWidget>("setClipping", &UIWidget::setClipping);
     g_lua.bindClassMemberFunction<UIWidget>("setLastFocusReason", &UIWidget::setLastFocusReason);
     g_lua.bindClassMemberFunction<UIWidget>("setAutoRepeatDelay", &UIWidget::setAutoRepeatDelay);
+    g_lua.bindClassMemberFunction<UIWidget>("setVirtualOffset", &UIWidget::setVirtualOffset);
     g_lua.bindClassMemberFunction<UIWidget>("isVisible", &UIWidget::isVisible);
     g_lua.bindClassMemberFunction<UIWidget>("isChildLocked", &UIWidget::isChildLocked);
     g_lua.bindClassMemberFunction<UIWidget>("hasChild", &UIWidget::hasChild);
@@ -149,6 +151,7 @@ void Application::registerLuaFunctions()
     g_lua.bindClassMemberFunction<UIWidget>("isPhantom", &UIWidget::isPhantom);
     g_lua.bindClassMemberFunction<UIWidget>("isDragable", &UIWidget::isDragable);
     g_lua.bindClassMemberFunction<UIWidget>("isFixedSize", &UIWidget::isFixedSize);
+    g_lua.bindClassMemberFunction<UIWidget>("isClipping", &UIWidget::isClipping);
     g_lua.bindClassMemberFunction<UIWidget>("isDestroyed", &UIWidget::isDestroyed);
     g_lua.bindClassMemberFunction<UIWidget>("hasChildren", &UIWidget::hasChildren);
     g_lua.bindClassMemberFunction<UIWidget>("containsPoint", &UIWidget::containsPoint);
@@ -163,6 +166,7 @@ void Application::registerLuaFunctions()
     g_lua.bindClassMemberFunction<UIWidget>("getChildCount", &UIWidget::getChildCount);
     g_lua.bindClassMemberFunction<UIWidget>("getLastFocusReason", &UIWidget::getLastFocusReason);
     g_lua.bindClassMemberFunction<UIWidget>("getAutoRepeatDelay", &UIWidget::getAutoRepeatDelay);
+    g_lua.bindClassMemberFunction<UIWidget>("getVirtualOffset", &UIWidget::getVirtualOffset);
     g_lua.bindClassMemberFunction<UIWidget>("getStyleName", &UIWidget::getStyleName);
     g_lua.bindClassMemberFunction<UIWidget>("setX", &UIWidget::setX);
     g_lua.bindClassMemberFunction<UIWidget>("setY", &UIWidget::setY);
@@ -418,8 +422,12 @@ void Application::registerLuaFunctions()
     // Application
     g_lua.registerStaticClass("g_app");
     g_lua.bindClassStaticFunction("g_app", "exit", std::bind(&Application::exit, g_app));
+    g_lua.bindClassStaticFunction("g_app", "setFrameSleep", std::bind(&Application::setFrameSleep, g_app, _1));
+    g_lua.bindClassStaticFunction("g_app", "setPollCycleDelay", std::bind(&Application::setPollCycleDelay, g_app, _1));
     g_lua.bindClassStaticFunction("g_app", "isRunning", std::bind(&Application::isRunning, g_app));
     g_lua.bindClassStaticFunction("g_app", "isStopping", std::bind(&Application::isStopping, g_app));
+    g_lua.bindClassStaticFunction("g_app", "getFrameSleep", std::bind(&Application::getFrameSleep, g_app));
+    g_lua.bindClassStaticFunction("g_app", "getPollCycleDelay", std::bind(&Application::getPollCycleDelay, g_app));
     g_lua.bindClassStaticFunction("g_app", "getName", std::bind(&Application::getName, g_app));
     g_lua.bindClassStaticFunction("g_app", "getVersion", std::bind(&Application::getVersion, g_app));
     g_lua.bindClassStaticFunction("g_app", "getBuildCompiler", std::bind(&Application::getBuildCompiler, g_app));

src/framework/luascript/luaobject.h

@@ -40,6 +40,7 @@ public:
     template<typename R, typename... T>
     R callLuaField(const std::string& field, const T&... args);
 
+    /// Returns true if the lua field exists
     bool hasLuaField(const std::string& field);
 
     /// Sets a field in this lua object

src/framework/ui/uiwidget.cpp

@@ -53,20 +53,14 @@ UIWidget::~UIWidget()
 
 void UIWidget::draw(const Rect& visibleRect)
 {
+    if(m_clipping)
+        g_graphics.beginClipping(visibleRect);
+
     drawSelf();
-    if(m_children.size() > 0) {
-        bool clip = true;
-        if(this == g_ui.getRootWidget().get())
-            clip = false;
+    drawChildren(visibleRect);
 
-        if(clip)
-            g_graphics.beginClipping(visibleRect);
-
-        drawChildren(visibleRect);
-
-        if(clip)
-            g_graphics.endClipping();
-    }
+    if(m_clipping)
+        g_graphics.endClipping();
 }
 
 void UIWidget::drawSelf()
@@ -1325,12 +1319,20 @@ bool UIWidget::onMouseWheel(const Point& mousePos, Fw::MouseWheelDirection direc
 
 bool UIWidget::onClick(const Point& mousePos)
 {
-    return callLuaField<bool>("onClick", mousePos);
+    if(hasLuaField("onClick")) {
+        callLuaField("onClick", mousePos);
+        return true;
+    }
+    return false;
 }
 
 bool UIWidget::onDoubleClick(const Point& mousePos)
 {
-    return callLuaField<bool>("onDoubleClick", mousePos);
+    if(hasLuaField("onDoubleClick")) {
+        callLuaField("onDoubleClick", mousePos);
+        return true;
+    }
+    return false;
 }
 
 bool UIWidget::propagateOnKeyText(const std::string& keyText)

src/framework/ui/uiwidget.h

@@ -41,6 +41,8 @@ struct EdgeGroup {
     T left;
 };
 
+// generate lua bindings for this class running:
+// ./tools/lua-binding-generator/generate_lua_bindings.lua src/framework/ui/uiwidget.h
 class UIWidget : public LuaObject
 {
 // widget core
@@ -65,6 +67,7 @@ protected:
     Boolean<false> m_phantom;
     Boolean<false> m_dragable;
     Boolean<false> m_destroyed;
+    Boolean<false> m_clipping;
     UILayoutPtr m_layout;
     UIWidgetWeakPtr m_parent;
     UIWidgetList m_children;
@@ -120,6 +123,7 @@ public:
     void setPhantom(bool phantom);
     void setDragable(bool dragable);
     void setFixedSize(bool fixed);
+    void setClipping(bool clipping) { m_clipping = clipping; }
     void setLastFocusReason(Fw::FocusReason reason);
     void setAutoRepeatDelay(int delay) { m_autoRepeatDelay = delay; }
     void setVirtualOffset(const Point& offset);
@@ -226,6 +230,7 @@ public:
     bool isPhantom() { return m_phantom; }
     bool isDragable() { return m_dragable; }
     bool isFixedSize() { return m_fixedSize; }
+    bool isClipping() { return m_clipping; }
     bool isDestroyed() { return m_destroyed; }
 
     bool hasChildren() { return m_children.size() > 0; }

src/framework/ui/uiwidgetbasestyle.cpp

@@ -120,6 +120,8 @@ void UIWidget::parseBaseStyle(const OTMLNodePtr& styleNode)
             setSize(node->value<Size>());
         else if(node->tag() == "fixed-size")
             setFixedSize(node->value<bool>());
+        else if(node->tag() == "clipping")
+            setClipping(node->value<bool>());
         else if(node->tag() == "border") {
             auto split = Fw::split(node->value(), " ");
             if(split.size() == 2) {