ListBox widget added.

Author: Zax37

CMakeLists.txt

@@ -56,6 +56,7 @@ set(
 	"${INCLUDE_PATH}/SFGUI/Frame.hpp"
 	"${INCLUDE_PATH}/SFGUI/Image.hpp"
 	"${INCLUDE_PATH}/SFGUI/Label.hpp"
+	"${INCLUDE_PATH}/SFGUI/ListBox.hpp"
 	"${INCLUDE_PATH}/SFGUI/Misc.hpp"
 	"${INCLUDE_PATH}/SFGUI/Notebook.hpp"
 	"${INCLUDE_PATH}/SFGUI/Object.hpp"
@@ -135,6 +136,7 @@ set(
 	"${SOURCE_PATH}/SFGUI/GLLoader.hpp"
 	"${SOURCE_PATH}/SFGUI/Image.cpp"
 	"${SOURCE_PATH}/SFGUI/Label.cpp"
+	"${SOURCE_PATH}/SFGUI/ListBox.cpp"
 	"${SOURCE_PATH}/SFGUI/Misc.cpp"
 	"${SOURCE_PATH}/SFGUI/Notebook.cpp"
 	"${SOURCE_PATH}/SFGUI/Object.cpp"

examples/CMakeLists.txt

@@ -38,6 +38,7 @@ build_example( "ProgressBar" "ProgressBar.cpp" )
 build_example( "SpinButton" "SpinButton.cpp" )
 build_example( "Canvas" "Canvas.cpp" )
 build_example( "CustomWidget" "CustomWidget.cpp" )
+build_example( "ListBox" "ListBox.cpp" )
 build_example( "SFGUI-Test" "Test.cpp" )
 
 # Copy data directory to build cache directory to be able to run examples from

examples/ListBox.cpp

@@ -0,0 +1,91 @@
+// Always include the necessary header files.
+// Including SFGUI/Widgets.hpp includes everything
+// you can possibly need automatically.
+#include <SFGUI/SFGUI.hpp>
+#include <SFGUI/Widgets.hpp>
+
+#include <SFML/Graphics.hpp>
+
+int main() {
+	sfg::SFGUI sfgui;
+	sf::RenderWindow window(sf::VideoMode(640, 480), "ListBox Example");
+    window.setVerticalSyncEnabled(true);
+    window.setFramerateLimit(30);
+
+    sfg::Desktop desktop;
+
+	auto sfg_window = sfg::Window::Create();
+	sfg_window->SetTitle( "ListBoxExample" );
+
+	auto box_outer = sfg::Box::Create( sfg::Box::Orientation::HORIZONTAL, 15.0f );
+	auto box_inner1 = sfg::Box::Create( sfg::Box::Orientation::VERTICAL, 5.0f );
+	auto box_inner2 = sfg::Box::Create( sfg::Box::Orientation::VERTICAL, 5.0f );
+
+	auto label1 = sfg::Label::Create("I'm single-select list.");
+	auto label2 = sfg::Label::Create("I'm multi-select list.");
+
+	auto input1 = sfg::Entry::Create("");
+	auto input2 = sfg::Entry::Create("");
+
+    auto list1 = sfg::ListBox::Create();
+        list1->AppendItem( "Item1" );
+        list1->AppendItem( "Item2" );
+        list1->AppendItem( "Item3" );
+    list1->GetSignal( sfg::ListBox::OnSelect ).Connect( std::bind( [list1, input1](){ if(list1->GetSelectedItemsCount()) input1->SetText(list1->GetSelectedItemText()); else input1->SetText(""); } ) );
+
+    auto list2 = sfg::ListBox::Create();
+        list2->AppendItem( "Item1" );
+        list2->AppendItem( "Item2" );
+        list2->AppendItem( "Item3" );
+    list2->multiselect = true;
+    list2->GetSignal( sfg::ListBox::OnSelect ).Connect( std::bind( [list2, input2](){
+        std::string str = "";
+        for(unsigned i=0; i<list2->GetSelectedItemsCount(); i++)
+        {
+            str += list2->GetSelectedItemText(i);
+            str += ' ';
+        }
+        input2->SetText(str);
+    } ) );
+
+	box_outer->Pack(box_inner1);
+	box_outer->Pack(box_inner2);
+
+	box_inner1->Pack(label1);
+	box_inner1->Pack(list1);
+	box_inner1->Pack(input1);
+
+	box_inner2->Pack(label2);
+	box_inner2->Pack(list2);
+	box_inner2->Pack(input2);
+
+	sfg_window->Add( box_outer );
+	desktop.Add( sfg_window );
+
+	sfg_window->SetPosition(sf::Vector2f(window.getSize().x/2-sfg_window->GetRequisition().x/2, window.getSize().y/2-sfg_window->GetRequisition().y/2));
+
+    sf::Event event;
+    sf::Clock clock;
+
+    window.resetGLStates();
+
+    while (window.isOpen())
+        {
+            while (window.pollEvent(event))
+            {
+                desktop.HandleEvent( event );
+                switch(event.type)
+                {
+                    case sf::Event::Closed:
+                        window.close();
+                    break;
+                }
+            }
+            desktop.Update( clock.restart().asSeconds() );
+            window.clear();
+            sfgui.Display( window );
+            window.display();
+        }
+
+    return 0;
+}

include/SFGUI/ListBox.hpp

@@ -0,0 +1,60 @@
+#pragma once
+
+#include <SFGUI/Bin.hpp>
+
+#include <SFML/System/String.hpp>
+#include <memory>
+#include <vector>
+
+namespace sfg {
+
+class SFGUI_API ListBox : public Widget {
+	public:
+		typedef std::shared_ptr<ListBox> Ptr; //!< Shared pointer.
+		typedef std::shared_ptr<const ListBox> PtrConst; //!< Shared pointer.
+
+		/** Create button.
+		 * @return ListBox.
+		 */
+		static Ptr Create(  );
+
+		const std::string& GetName() const override;
+
+        unsigned GetSelectedItemsCount();
+		unsigned GetSelectedItemIndex(unsigned n=0);
+		const std::string& GetSelectedItemText(unsigned n=0);
+
+		void AppendItem(std::string str);
+		void PrependItem(std::string str);
+		void RemoveItem(unsigned index);
+		void Clear();
+
+        // Signals.
+		static Signal::SignalID OnSelect; //!< Fired when an entry is selected.
+
+		bool resize_automatically = true;
+		bool multiselect = false;
+
+	protected:
+		/** Ctor.
+		 */
+		ListBox() = default;
+
+		std::unique_ptr<RenderQueue> InvalidateImpl() const override;
+		sf::Vector2f CalculateRequisition() override;
+
+	private:
+        void HandleMouseEnter( int x, int y ) override;
+		void HandleMouseLeave( int x, int y ) override;
+		void HandleMouseMoveEvent( int x, int y ) override;
+		void HandleMouseButtonEvent( sf::Mouse::Button button, bool press, int x, int y ) override;
+
+		std::vector<std::string> m_entries;
+		int selection_begin = -1, selection_end = -1;
+		int hovered_element = -1; bool pressed_on_widget = false;
+		std::vector<bool> selection_odds;
+
+		bool widget_hover = false;
+};
+
+}

include/SFGUI/Widgets.hpp

@@ -19,6 +19,7 @@
 #include <SFGUI/Frame.hpp>
 #include <SFGUI/Image.hpp>
 #include <SFGUI/Label.hpp>
+#include <SFGUI/ListBox.hpp>
 #include <SFGUI/Notebook.hpp>
 #include <SFGUI/ProgressBar.hpp>
 #include <SFGUI/RadioButton.hpp>