ATextArea.h

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2025 Alex2772 and Contributors
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
//
// Created by alex2 on 5/22/2021.
//
 
 
#pragma once
 
 
#include "AViewContainer.h"
#include "AAbstractTextField.h"
#include "AScrollbar.h"
#include "ATextBase.h"
 
class API_AUI_VIEWS AScrollArea;

class API_AUI_VIEWS ATextArea: public AAbstractTypeableView<ATextBase<AWordWrappingEngine<std::list<_unique<aui::detail::TextBaseEntry>>>>>, public IStringable {
public:
   friend class UITextArea; // for testing
 
   using Iterator = Entries::iterator;
 
   ATextArea();
   ATextArea(const AString& text);
   ~ATextArea() override;
 
   bool capturesFocus() override;
 
   AString toString() const override;
   const AString& getText() const override;
   unsigned int cursorIndexByPos(glm::ivec2 pos) override;
   glm::ivec2 getPosByIndex(size_t index) override;
   void setText(const AString& t) override;
   void render(ARenderContext context) override;
   void onCharEntered(char16_t c) override;
   glm::ivec2 getCursorPosition() override;
   void setSize(glm::ivec2 size) override;
 
   bool isPasswordField() const noexcept override;
 
   ATextInputType textInputType() const noexcept override;
 
protected:
   void typeableErase(size_t begin, size_t end) override;
   bool typeableInsert(size_t at, const AString& toInsert) override;
   bool typeableInsert(size_t at, char16_t toInsert) override;
   size_t typeableFind(char16_t c, size_t startPos) override;
   size_t typeableReverseFind(char16_t c, size_t startPos) override;
   size_t length() const override;
   void fillStringCanvas(const _<IRenderer::IMultiStringCanvas>& canvas) override;
 
private:
   mutable AOptional<AString> mCompiledText;
   glm::ivec2 mCursorPosition{0, 0};
   AAbstractSignal::AutoDestroyedConnection mUpdatedMaxScrollSignal;
 
   struct EntityQueryResult {
       Iterator iterator;
       size_t relativeIndex;
   };
 
private:
 
   auto& entities() {
       return mEngine.entries();
   }
 
   auto& entities() const {
       return mEngine.entries();
   }
 
   void onCursorIndexChanged() override;
 
   EntityQueryResult getLeftEntity(size_t indexRelativeToFrom, EntityQueryResult from);
   EntityQueryResult getLeftEntity(size_t index);
   Iterator splitIfNecessary(EntityQueryResult at);
 
   AScrollArea* findScrollArea();
};
 
template<>
struct ADataBindingDefault<ATextArea, AString> {
public:
   static auto property(const _<ATextArea>& view) {
       return view->text();
   }
 
   static void setup(const _<ATextArea>& view) {}
};
 
 

© 2025 AUI Framework Contributors. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. All trademarks are property of their respective owners.