Merge commit 'd9b2c00228' as 'libraries/ZWidget'

libraries/ZWidget/include/zwidget/widgets/tabwidget/tabwidget.h

@@ -0,0 +1,129 @@
+
+#pragma once
+
+#include "../../core/widget.h"
+#include <functional>
+#include <string>
+#include <vector>
+
+class TabBar;
+class TabBarTab;
+class TabBarSpacer;
+class TabWidgetStack;
+class TextLabel;
+class ImageBox;
+class Image;
+
+class TabWidget : public Widget
+{
+public:
+	TabWidget(Widget* parent);
+
+	int AddTab(Widget* page, const std::string& label);
+	int AddTab(Widget* page, const std::shared_ptr<Image>& icon, const std::string& label);
+
+	void SetTabText(int index, const std::string& text);
+	void SetTabText(Widget* page, const std::string& text);
+	void SetTabIcon(int index, const std::shared_ptr<Image>& icon);
+	void SetTabIcon(Widget* page, const std::shared_ptr<Image>& icon);
+
+	int GetCurrentIndex() const;
+	Widget* GetCurrentWidget() const;
+
+	int GetPageIndex(Widget* pageWidget) const;
+
+	void SetCurrentIndex(int pageIndex);
+	void SetCurrentWidget(Widget* pageWidget);
+
+	std::function<void()> OnCurrentChanged;
+
+protected:
+	void OnGeometryChanged() override;
+
+private:
+	void OnBarCurrentChanged();
+
+	TabBar* Bar = nullptr;
+	TabWidgetStack* PageStack = nullptr;
+	std::vector<Widget*> Pages;
+};
+
+class TabBar : public Widget
+{
+public:
+	TabBar(Widget* parent);
+
+	int AddTab(const std::string& label);
+	int AddTab(const std::shared_ptr<Image>& icon, const std::string& label);
+
+	void SetTabText(int index, const std::string& text);
+	void SetTabIcon(int index, const std::shared_ptr<Image>& icon);
+
+	int GetCurrentIndex() const;
+	void SetCurrentIndex(int pageIndex);
+
+	double GetPreferredHeight() const { return 30.0; }
+
+	std::function<void()> OnCurrentChanged;
+
+protected:
+	void OnGeometryChanged() override;
+
+private:
+	void OnTabClicked(TabBarTab* tab);
+	int GetTabIndex(TabBarTab* tab);
+
+	int CurrentIndex = -1;
+	std::vector<TabBarTab*> Tabs;
+	TabBarSpacer* leftSpacer = nullptr;
+	TabBarSpacer* rightSpacer = nullptr;
+};
+
+class TabBarSpacer : public Widget
+{
+public:
+	TabBarSpacer(Widget* parent);
+};
+
+class TabBarTab : public Widget
+{
+public:
+	TabBarTab(Widget* parent);
+
+	void SetText(const std::string& text);
+	void SetIcon(const std::shared_ptr<Image>& icon);
+	void SetCurrent(bool value);
+
+	double GetPreferredWidth() const;
+
+	std::function<void()> OnClick;
+
+protected:
+	void OnGeometryChanged() override;
+	bool OnMouseDown(const Point& pos, InputKey key) override;
+	bool OnMouseUp(const Point& pos, InputKey key) override;
+	void OnMouseMove(const Point& pos) override;
+	void OnMouseLeave() override;
+
+private:
+	bool IsCurrent = false;
+
+	ImageBox* Icon = nullptr;
+	TextLabel* Label = nullptr;
+	bool hot = false;
+};
+
+class TabWidgetStack : public Widget
+{
+public:
+	TabWidgetStack(Widget* parent);
+
+	void SetCurrentWidget(Widget* widget);
+	Widget* GetCurrentWidget() const { return CurrentWidget; }
+
+protected:
+	void OnGeometryChanged() override;
+
+private:
+	Widget* CurrentWidget = nullptr;
+};