ChildWindow.hpp

 
//
// TGUI - Texus' Graphical User Interface
// Copyright (C) 2012-2023 Bruno Van de Velde (vdv_b@tgui.eu)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
 
 
#ifndef TGUI_CHILD_WINDOW_HPP
#define TGUI_CHILD_WINDOW_HPP
 
 
#include <TGUI/CopiedSharedPtr.hpp>
#include <TGUI/Container.hpp>
#include <TGUI/Widgets/Button.hpp>
#include <TGUI/Renderers/ChildWindowRenderer.hpp>
 
#if !TGUI_EXPERIMENTAL_USE_STD_MODULE
 #include <limits>
#endif
 
 
TGUI_MODULE_EXPORT namespace tgui
{
 class TGUI_API ChildWindow : public Container
 {
 public:
 
 using Ptr = std::shared_ptr<ChildWindow>; 
 using ConstPtr = std::shared_ptr<const ChildWindow>; 
 
 static constexpr const char StaticWidgetType[] = "ChildWindow"; 
 
 
 enum class TitleAlignment
 {
 Left, 
 Center, 
 Right 
 };
 
 
 enum TitleButton : unsigned int
 {
 None = 0, 
 Close = 1 << 0, 
 Maximize = 1 << 1, 
 Minimize = 1 << 2 
 };
 
 ChildWindow(const char* typeName = StaticWidgetType, bool initRenderer = true);
 
 
 ChildWindow(const ChildWindow&);
 
 
 ChildWindow(ChildWindow&&) noexcept;
 
 
 ChildWindow& operator= (const ChildWindow&);
 
 
 ChildWindow& operator= (ChildWindow&&) noexcept;
 
 
 TGUI_NODISCARD static ChildWindow::Ptr create(const String& title = "", unsigned int titleButtons = TitleButton::Close);
 
 
 TGUI_NODISCARD static ChildWindow::Ptr copy(const ChildWindow::ConstPtr& childWindow);
 
 
 TGUI_NODISCARD ChildWindowRenderer* getSharedRenderer() override;
 TGUI_NODISCARD const ChildWindowRenderer* getSharedRenderer() const override;
 
 TGUI_NODISCARD ChildWindowRenderer* getRenderer() override;
 
 
 void setPosition(const Layout2d& position) override;
 using Widget::setPosition;
 
 
 void setSize(const Layout2d& size) override;
 using Widget::setSize;
 
 
 TGUI_NODISCARD Vector2f getInnerSize() const override;
 
 
 virtual void setClientSize(const Layout2d& size);
 
 
 TGUI_NODISCARD Vector2f getClientSize() const;
 
 
 void setMaximumSize(Vector2f size);
 
 
 TGUI_NODISCARD Vector2f getMaximumSize() const;
 
 
 void setMinimumSize(Vector2f size);
 
 
 TGUI_NODISCARD Vector2f getMinimumSize() const;
 
 
 void setTitle(const String& title);
 
 
 TGUI_NODISCARD const String& getTitle() const;
 
 
 void setTitleTextSize(unsigned int size);
 
 
 TGUI_NODISCARD unsigned int getTitleTextSize() const;
 
 
 void setTitleAlignment(TitleAlignment alignment);
 
 
 TGUI_NODISCARD TitleAlignment getTitleAlignment() const;
 
 
 void setTitleButtons(unsigned int buttons);
 
 
 TGUI_NODISCARD unsigned int getTitleButtons() const;
 
 
 void close();
 
 
 void destroy();
 
 
 void setResizable(bool resizable = true);
 
 
 TGUI_NODISCARD bool isResizable() const;
 
 
 void setPositionLocked(bool positionLocked = true);
 
 
 TGUI_NODISCARD bool isPositionLocked() const;
 
 
 void setKeepInParent(bool enabled = true);
 
 
 TGUI_NODISCARD bool isKeptInParent() const;
 
 
 TGUI_NODISCARD Vector2f getChildWidgetsOffset() const override;
 
 
 void setParent(Container* parent) override;
 
 
 TGUI_NODISCARD bool isMouseOnWidget(Vector2f pos) const override;
 
 bool leftMousePressed(Vector2f pos) override;
 
 void leftMouseReleased(Vector2f pos) override;
 
 void rightMousePressed(Vector2f pos) override;
 
 void rightMouseReleased(Vector2f pos) override;
 
 void mouseMoved(Vector2f pos) override;
 
 void keyPressed(const Event::KeyEvent& event) override;
 
 bool canHandleKeyPress(const Event::KeyEvent& event) override;
 
 void mouseNoLongerOnWidget() override;
 
 void leftMouseButtonNoLongerDown() override;
 
 
 void draw(BackendRenderTarget& target, RenderStates states) const override;
 
 
 protected:
 
 // Updates the title bar texture, text and buttons after the title bar height has changed.
 void updateTitleBarHeight();
 
 
 // Updates the mouse cursor for resizable child windows
 void updateResizeMouseCursor(Vector2f mousePos);
 
 
 TGUI_NODISCARD Signal& getSignal(String signalName) override;
 
 
 void rendererChanged(const String& property) override;
 
 
 TGUI_NODISCARD std::unique_ptr<DataIO::Node> save(SavingRenderersMap& renderers) const override;
 
 
 void load(const std::unique_ptr<DataIO::Node>& node, const LoadingRenderersMap& renderers) override;
 
 
 void mouseEnteredWidget() override;
 
 
 void mouseLeftWidget() override;
 
 
 // Makes a copy of the widget
 TGUI_NODISCARD Widget::Ptr clone() const override;
 
 
 private:
 
 // Helper function to connect the title button callbacks from the various constuctors and assignment operators
 void connectTitleButtonCallbacks();
 
 
 public:
 
 Signal onMousePress = {"MousePressed"}; 
 SignalChildWindow onClose = {"Closed"}; 
 SignalChildWindow onMinimize = {"Minimized"}; 
 SignalChildWindow onMaximize = {"Maximized"}; 
 SignalChildWindow onEscapeKeyPress = {"EscapeKeyPressed"}; 
 
 SignalTyped<bool*> onClosing = {"Closing"};
 
 
 protected:
 
 enum ResizeDirection
 {
 ResizeNone = 0,
 ResizeLeft = 1,
 ResizeTop = 2,
 ResizeRight = 4,
 ResizeBottom = 8
 };
 
 
 protected:
 
 Text m_titleText;
 Vector2f m_draggingPosition;
 Vector2f m_maximumSize = {std::numeric_limits<float>::infinity(), std::numeric_limits<float>::infinity()};
 Vector2f m_minimumSize = {0, 0};
 Layout* m_decorationLayoutX = nullptr;
 Layout* m_decorationLayoutY = nullptr;
 TitleAlignment m_titleAlignment = TitleAlignment::Center;
 unsigned int m_titleButtons = TitleButton::Close;
 unsigned int m_titleTextSize = 0;
 Cursor::Type m_currentChildWindowMouseCursor = Cursor::Type::Arrow;
 
 CopiedSharedPtr<Button> m_closeButton;
 CopiedSharedPtr<Button> m_minimizeButton;
 CopiedSharedPtr<Button> m_maximizeButton;
 
 bool m_mouseDownOnTitleBar = false;
 bool m_keepInParent = false;
 
 bool m_positionLocked = false;
 bool m_resizable = false;
 int m_resizeDirection = ResizeNone;
 
 Sprite m_spriteTitleBar;
 Sprite m_spriteBackground;
 
 // Cached renderer properties
 Borders m_bordersCached;
 Color m_borderColorCached;
 Color m_borderColorFocusedCached;
 Color m_titleColorCached;
 Color m_titleBarColorCached;
 Color m_backgroundColorCached;
 float m_titleBarHeightCached = 20;
 float m_borderBelowTitleBarCached = 0;
 float m_distanceToSideCached = 0;
 float m_paddingBetweenButtonsCached = 0;
 float m_minimumResizableBorderWidthCached = 10;
 bool m_showTextOnTitleButtonsCached = false;
 
 };
 
}
 
 
#endif // TGUI_CHILD_WINDOW_HPP