ChatBox.hpp

 
//
// TGUI - Texus' Graphical User Interface
// Copyright (C) 2012-2022 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_CHAT_BOX_HPP
#define TGUI_CHAT_BOX_HPP
 
 
#include <TGUI/CopiedSharedPtr.hpp>
#include <TGUI/Widgets/Scrollbar.hpp>
#include <TGUI/Renderers/ChatBoxRenderer.hpp>
#include <TGUI/Text.hpp>
#include <deque>
 
 
namespace tgui
{
 
 class TGUI_API ChatBox : public Widget
 {
 public:
 
 using Ptr = std::shared_ptr<ChatBox>; 
 using ConstPtr = std::shared_ptr<const ChatBox>; 
 
 static constexpr const char StaticWidgetType[] = "ChatBox"; 
 
 struct Line
 {
 Text text;
 String string;
 };
 
 
 ChatBox(const char* typeName = StaticWidgetType, bool initRenderer = true);
 
 
 static ChatBox::Ptr create();
 
 
 static ChatBox::Ptr copy(const ChatBox::ConstPtr& chatBox);
 
 
 ChatBoxRenderer* getSharedRenderer();
 const ChatBoxRenderer* getSharedRenderer() const;
 
 ChatBoxRenderer* getRenderer();
 
 
 void setSize(const Layout2d& size) override;
 using Widget::setSize;
 
 
 void addLine(const String& text);
 
 
 void addLine(const String& text, Color color);
 
 
 void addLine(const String& text, Color color, TextStyles style);
 
 
 String getLine(std::size_t lineIndex) const;
 
 
 Color getLineColor(std::size_t lineIndex) const;
 
 
 TextStyles getLineTextStyle(std::size_t lineIndex) const;
 
 
 bool removeLine(std::size_t lineIndex);
 
 
 void removeAllLines();
 
 
 std::size_t getLineAmount();
 
 
 void setLineLimit(std::size_t maxLines);
 
 
 std::size_t getLineLimit();
 
 
 void setTextColor(Color color);
 
 
 const Color& getTextColor() const;
 
 
 void setTextStyle(TextStyles style);
 
 
 TextStyles getTextStyle() const;
 
 
 void setLinesStartFromTop(bool startFromTop = true);
 
 
 bool getLinesStartFromTop() const;
 
 
 void setNewLinesBelowOthers(bool newLinesBelowOthers = true);
 
 
 bool getNewLinesBelowOthers() const;
 
 
 void setScrollbarValue(unsigned int value);
 
 
 unsigned int getScrollbarValue() const;
 
 
 bool isMouseOnWidget(Vector2f pos) const override;
 
 void leftMousePressed(Vector2f pos) override;
 
 void leftMouseReleased(Vector2f pos) override;
 
 void mouseMoved(Vector2f pos) override;
 
 bool mouseWheelScrolled(float delta, Vector2f pos) override;
 
 void mouseNoLongerOnWidget() override;
 
 void leftMouseButtonNoLongerDown() override;
 
 
 private:
 
 // Recalculates the text attribute of the line
 void recalculateLineText(Line& line);
 
 
 // Recalculates all text attributes, recalculate the full text height and update the displayed text
 void recalculateAllLines();
 
 
 // Recalculates the space used by all the lines
 void recalculateFullTextHeight();
 
 
 // Updates the position of the lines
 void updateDisplayedText();
 
 
 // Updates the position and size of the panel and scrollbar
 void updateRendering();
 
 
 protected:
 
 void draw(BackendRenderTarget& target, RenderStates states) const override;
 
 
 void rendererChanged(const String& property) override;
 
 
 std::unique_ptr<DataIO::Node> save(SavingRenderersMap& renderers) const override;
 
 
 void load(const std::unique_ptr<DataIO::Node>& node, const LoadingRenderersMap& renderers) override;
 
 
 void updateTextSize() override;
 
 
 // Returns the size without the borders
 Vector2f getInnerSize() const;
 
 
 // Makes a copy of the widget
 Widget::Ptr clone() const override;
 
 
 protected:
 
 Color m_textColor = Color::Black;
 TextStyles m_textStyle;
 
 std::size_t m_maxLines = 0;
 
 float m_fullTextHeight = 0;
 
 bool m_linesStartFromTop = false;
 bool m_newLinesBelowOthers = true;
 
 CopiedSharedPtr<ScrollbarChildWidget> m_scroll;
 
 std::deque<Line> m_lines;
 
 Sprite m_spriteBackground;
 
 // Cached renderer properties
 Borders m_bordersCached;
 Padding m_paddingCached;
 Color m_backgroundColorCached;
 Color m_borderColorCached;
 
 };
 
}
 
 
#endif // TGUI_TEXT_BOX_HPP