Widgets: Add [Rich]TextAreaWidget

This commit is contained in:
Jérôme Leclercq 2021-11-24 22:25:39 +01:00
parent 643b1a2b15
commit caf1a0f1e8
13 changed files with 1796 additions and 0 deletions

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@ -18,10 +18,13 @@ namespace Nz
struct UnicodeAware {};
// std::string is assumed to contains UTF-8
NAZARA_CORE_API std::size_t ComputeCharacterCount(const std::string_view& str);
NAZARA_CORE_API std::string FromUtf16String(const std::u16string_view& u16str);
NAZARA_CORE_API std::string FromUtf32String(const std::u32string_view& u32str);
NAZARA_CORE_API std::string FromWideString(const std::wstring_view& str);
NAZARA_CORE_API std::size_t GetCharacterPosition(const std::string_view& str, std::size_t characterIndex);
NAZARA_CORE_API std::string_view GetWord(const std::string_view& str, std::size_t wordIndex);
NAZARA_CORE_API std::string_view GetWord(const std::string_view& str, std::size_t wordIndex, UnicodeAware);

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@ -29,12 +29,16 @@
#ifndef NAZARA_GLOBAL_WIDGETS_HPP
#define NAZARA_GLOBAL_WIDGETS_HPP
#include <Nazara/Widgets/AbstractTextAreaWidget.hpp>
#include <Nazara/Widgets/BaseWidget.hpp>
#include <Nazara/Widgets/ButtonWidget.hpp>
#include <Nazara/Widgets/Canvas.hpp>
#include <Nazara/Widgets/Config.hpp>
#include <Nazara/Widgets/Enums.hpp>
#include <Nazara/Widgets/ImageWidget.hpp>
#include <Nazara/Widgets/LabelWidget.hpp>
#include <Nazara/Widgets/RichTextAreaWidget.hpp>
#include <Nazara/Widgets/TextAreaWidget.hpp>
#include <Nazara/Widgets/Widgets.hpp>
#endif // NAZARA_GLOBAL_WIDGETS_HPP

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@ -0,0 +1,138 @@
// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Widgets module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#pragma once
#ifndef NAZARA_WIDGETS_ABSTRACTTEXTAREAWIDGET_HPP
#define NAZARA_WIDGETS_ABSTRACTTEXTAREAWIDGET_HPP
#include <Nazara/Graphics/TextSprite.hpp>
#include <Nazara/Utility/AbstractTextDrawer.hpp>
#include <Nazara/Widgets/BaseWidget.hpp>
#include <Nazara/Widgets/Enums.hpp>
#include <functional>
#include <vector>
namespace Nz
{
class NAZARA_WIDGETS_API AbstractTextAreaWidget : public BaseWidget
{
public:
using CharacterFilter = std::function<bool(char32_t)>;
AbstractTextAreaWidget(BaseWidget* parent);
AbstractTextAreaWidget(const AbstractTextAreaWidget&) = delete;
AbstractTextAreaWidget(AbstractTextAreaWidget&&) = default;
~AbstractTextAreaWidget() = default;
virtual void Clear();
void EnableLineWrap(bool enable = true);
inline void EnableMultiline(bool enable = true);
inline void EnableTabWriting(bool enable = true);
inline void Erase(std::size_t glyphPosition);
virtual void Erase(std::size_t firstGlyph, std::size_t lastGlyph) = 0;
inline void EraseSelection();
inline const CharacterFilter& GetCharacterFilter() const;
inline const Vector2ui& GetCursorPosition() const;
inline Vector2ui GetCursorPosition(std::size_t glyphIndex) const;
inline EchoMode GetEchoMode() const;
inline std::size_t GetGlyphIndex() const;
inline std::size_t GetGlyphIndex(const Vector2ui& cursorPosition) const;
inline const std::string& GetText() const;
Vector2ui GetHoveredGlyph(float x, float y) const;
inline bool HasSelection() const;
inline bool IsLineWrapEnabled() const;
inline bool IsMultilineEnabled() const;
inline bool IsReadOnly() const;
inline bool IsTabWritingEnabled() const;
inline void MoveCursor(int offset);
inline void MoveCursor(const Vector2i& offset);
inline Vector2ui NormalizeCursorPosition(Vector2ui cursorPosition) const;
inline void SetCharacterFilter(CharacterFilter filter);
inline void SetCursorPosition(std::size_t glyphIndex);
inline void SetCursorPosition(Vector2ui cursorPosition);
inline void SetEchoMode(EchoMode echoMode);
inline void SetReadOnly(bool readOnly = true);
inline void SetSelection(Vector2ui fromPosition, Vector2ui toPosition);
inline void Write(const std::string& text);
inline void Write(const std::string& text, const Vector2ui& glyphPosition);
virtual void Write(const std::string& text, std::size_t glyphPosition) = 0;
AbstractTextAreaWidget& operator=(const AbstractTextAreaWidget&) = delete;
AbstractTextAreaWidget& operator=(AbstractTextAreaWidget&&) = default;
NazaraSignal(OnTextAreaCursorMove, const AbstractTextAreaWidget* /*textArea*/, Vector2ui* /*newCursorPosition*/);
NazaraSignal(OnTextAreaKeyBackspace, const AbstractTextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyDown, const AbstractTextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyEnd, const AbstractTextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyHome, const AbstractTextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyLeft, const AbstractTextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyReturn, const AbstractTextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyRight, const AbstractTextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyUp, const AbstractTextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaSelection, const AbstractTextAreaWidget* /*textArea*/, Vector2ui* /*start*/, Vector2ui* /*end*/);
protected:
virtual AbstractTextDrawer& GetTextDrawer() = 0;
virtual const AbstractTextDrawer& GetTextDrawer() const = 0;
void Layout() override;
virtual void HandleIndentation(bool add) = 0;
virtual void HandleSelectionIndentation(bool add) = 0;
virtual void HandleWordCursorMove(bool left) = 0;
bool IsFocusable() const override;
void OnFocusLost() override;
void OnFocusReceived() override;
bool OnKeyPressed(const WindowEvent::KeyEvent& key) override;
void OnKeyReleased(const WindowEvent::KeyEvent& key) override;
void OnMouseButtonPress(int /*x*/, int /*y*/, Mouse::Button button) override;
void OnMouseButtonRelease(int /*x*/, int /*y*/, Mouse::Button button) override;
void OnMouseEnter() override;
void OnMouseMoved(int x, int y, int deltaX, int deltaY) override;
void OnTextEntered(char32_t character, bool repeated) override;
inline void SetCursorPositionInternal(std::size_t glyphIndex);
inline void SetCursorPositionInternal(Vector2ui cursorPosition);
void RefreshCursor();
virtual void UpdateDisplayText() = 0;
void UpdateTextSprite();
struct Cursor
{
std::shared_ptr<Sprite> sprite;
entt::entity entity;
};
std::shared_ptr<TextSprite> m_textSprite;
std::vector<Cursor> m_cursors;
CharacterFilter m_characterFilter;
EchoMode m_echoMode;
entt::entity m_textEntity;
Vector2ui m_cursorPositionBegin;
Vector2ui m_cursorPositionEnd;
Vector2ui m_selectionCursor;
bool m_isLineWrapEnabled;
bool m_isMouseButtonDown;
bool m_multiLineEnabled;
bool m_readOnly;
bool m_tabEnabled; // writes (Shift+)Tab character if set to true
};
}
#include <Nazara/Widgets/AbstractTextAreaWidget.inl>
#endif // NAZARA_WIDGETS_ABSTRACTTEXTAREAWIDGET_HPP

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@ -0,0 +1,255 @@
// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Widgets module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Widgets/AbstractTextAreaWidget.hpp>
#include <Nazara/Widgets/Debug.hpp>
namespace Nz
{
inline void AbstractTextAreaWidget::EnableMultiline(bool enable)
{
m_multiLineEnabled = enable;
}
inline void AbstractTextAreaWidget::EnableTabWriting(bool enable)
{
m_tabEnabled = enable;
}
inline void AbstractTextAreaWidget::Erase(std::size_t glyphPosition)
{
Erase(glyphPosition, glyphPosition + 1U);
}
inline void AbstractTextAreaWidget::EraseSelection()
{
if (!HasSelection())
return;
Erase(GetGlyphIndex(m_cursorPositionBegin), GetGlyphIndex(m_cursorPositionEnd));
}
inline const AbstractTextAreaWidget::CharacterFilter& AbstractTextAreaWidget::GetCharacterFilter() const
{
return m_characterFilter;
}
inline const Vector2ui& AbstractTextAreaWidget::GetCursorPosition() const
{
return m_cursorPositionBegin;
}
Vector2ui AbstractTextAreaWidget::GetCursorPosition(std::size_t glyphIndex) const
{
const AbstractTextDrawer& textDrawer = GetTextDrawer();
glyphIndex = std::min(glyphIndex, GetTextDrawer().GetGlyphCount());
std::size_t lineCount = textDrawer.GetLineCount();
std::size_t line = 0U;
for (std::size_t i = line + 1; i < lineCount; ++i)
{
if (textDrawer.GetLine(i).glyphIndex > glyphIndex)
break;
line = i;
}
const auto& lineInfo = textDrawer.GetLine(line);
Vector2ui cursorPos;
cursorPos.y = static_cast<unsigned int>(line);
cursorPos.x = static_cast<unsigned int>(glyphIndex - lineInfo.glyphIndex);
return cursorPos;
}
inline EchoMode AbstractTextAreaWidget::GetEchoMode() const
{
return m_echoMode;
}
inline std::size_t AbstractTextAreaWidget::GetGlyphIndex() const
{
return GetGlyphIndex(m_cursorPositionBegin);
}
inline std::size_t AbstractTextAreaWidget::GetGlyphIndex(const Vector2ui& cursorPosition) const
{
const AbstractTextDrawer& textDrawer = GetTextDrawer();
std::size_t glyphIndex = textDrawer.GetLine(cursorPosition.y).glyphIndex + cursorPosition.x;
if (textDrawer.GetLineCount() > cursorPosition.y + 1)
glyphIndex = std::min(glyphIndex, textDrawer.GetLine(cursorPosition.y + 1).glyphIndex - 1);
else
glyphIndex = std::min(glyphIndex, textDrawer.GetGlyphCount());
return glyphIndex;
}
inline bool AbstractTextAreaWidget::HasSelection() const
{
return m_cursorPositionBegin != m_cursorPositionEnd;
}
inline bool AbstractTextAreaWidget::IsLineWrapEnabled() const
{
return m_isLineWrapEnabled;
}
inline bool AbstractTextAreaWidget::IsMultilineEnabled() const
{
return m_multiLineEnabled;
}
inline bool AbstractTextAreaWidget::IsTabWritingEnabled() const
{
return m_tabEnabled;
}
inline bool AbstractTextAreaWidget::IsReadOnly() const
{
return m_readOnly;
}
inline void AbstractTextAreaWidget::MoveCursor(int offset)
{
std::size_t cursorGlyph = GetGlyphIndex(m_cursorPositionBegin);
if (offset >= 0)
SetCursorPosition(cursorGlyph + static_cast<std::size_t>(offset));
else
{
std::size_t nOffset = static_cast<std::size_t>(-offset);
if (nOffset >= cursorGlyph)
SetCursorPosition(0);
else
SetCursorPosition(cursorGlyph - nOffset);
}
}
inline void AbstractTextAreaWidget::MoveCursor(const Vector2i& offset)
{
auto ClampOffset = [] (unsigned int cursorPosition, int cursorOffset) -> unsigned int
{
if (cursorOffset >= 0)
return cursorPosition + cursorOffset;
else
{
unsigned int nOffset = static_cast<unsigned int>(-cursorOffset);
if (nOffset >= cursorPosition)
return 0;
else
return cursorPosition - nOffset;
}
};
Vector2ui cursorPosition = m_cursorPositionBegin;
cursorPosition.x = ClampOffset(static_cast<unsigned int>(cursorPosition.x), offset.x);
cursorPosition.y = ClampOffset(static_cast<unsigned int>(cursorPosition.y), offset.y);
SetCursorPosition(cursorPosition);
}
inline Vector2ui AbstractTextAreaWidget::NormalizeCursorPosition(Vector2ui cursorPosition) const
{
const AbstractTextDrawer& textDrawer = GetTextDrawer();
std::size_t lineCount = textDrawer.GetLineCount();
if (cursorPosition.y >= lineCount)
cursorPosition.y = static_cast<unsigned int>(lineCount - 1);
const auto& lineInfo = textDrawer.GetLine(cursorPosition.y);
if (cursorPosition.y + 1 < lineCount)
{
const auto& nextLineInfo = textDrawer.GetLine(cursorPosition.y + 1);
cursorPosition.x = std::min(cursorPosition.x, static_cast<unsigned int>(nextLineInfo.glyphIndex - lineInfo.glyphIndex - 1));
}
return cursorPosition;
}
inline void AbstractTextAreaWidget::SetCharacterFilter(CharacterFilter filter)
{
m_characterFilter = std::move(filter);
}
inline void AbstractTextAreaWidget::SetCursorPosition(std::size_t glyphIndex)
{
Vector2ui position = GetCursorPosition(glyphIndex);
Vector2ui newPosition = position;
OnTextAreaCursorMove(this, &newPosition);
if (position == newPosition)
SetCursorPositionInternal(position);
else
SetCursorPositionInternal(GetGlyphIndex(newPosition));
}
inline void AbstractTextAreaWidget::SetCursorPosition(Vector2ui cursorPosition)
{
OnTextAreaCursorMove(this, &cursorPosition);
return SetCursorPositionInternal(NormalizeCursorPosition(cursorPosition));
}
inline void AbstractTextAreaWidget::SetEchoMode(EchoMode echoMode)
{
m_echoMode = echoMode;
UpdateDisplayText();
}
inline void AbstractTextAreaWidget::SetReadOnly(bool readOnly)
{
m_readOnly = readOnly;
//m_cursorEntity->Enable(!m_readOnly && HasFocus());
}
inline void AbstractTextAreaWidget::SetSelection(Vector2ui fromPosition, Vector2ui toPosition)
{
// Ensure begin is before end
if (toPosition.y < fromPosition.y || (toPosition.y == fromPosition.y && toPosition.x < fromPosition.x))
std::swap(fromPosition, toPosition);
if (m_cursorPositionBegin != fromPosition || m_cursorPositionEnd != toPosition)
{
OnTextAreaSelection(this, &fromPosition, &toPosition);
// Ensure begin is before end a second time (in case signal changed it)
if (toPosition.y < fromPosition.y || (toPosition.y == fromPosition.y && toPosition.x < fromPosition.x))
std::swap(fromPosition, toPosition);
m_cursorPositionBegin = NormalizeCursorPosition(fromPosition);
m_cursorPositionEnd = NormalizeCursorPosition(toPosition);
RefreshCursor();
}
}
inline void AbstractTextAreaWidget::Write(const std::string& text)
{
Write(text, GetGlyphIndex(m_cursorPositionBegin));
}
inline void AbstractTextAreaWidget::Write(const std::string& text, const Vector2ui& glyphPosition)
{
Write(text, GetGlyphIndex(glyphPosition));
}
void AbstractTextAreaWidget::SetCursorPositionInternal(std::size_t glyphIndex)
{
return SetCursorPositionInternal(GetCursorPosition(glyphIndex));
}
inline void AbstractTextAreaWidget::SetCursorPositionInternal(Vector2ui cursorPosition)
{
m_cursorPositionBegin = cursorPosition;
m_cursorPositionEnd = m_cursorPositionBegin;
RefreshCursor();
}
}
#include <Nazara/Widgets/DebugOff.hpp>

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@ -0,0 +1,37 @@
// Copyright (C) 2021 Samy Bensaid
// This file is part of the "Nazara Engine - Widgets module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#pragma once
#ifndef NAZARA_WIDGETS_ENUMS_HPP
#define NAZARA_WIDGETS_ENUMS_HPP
namespace Nz
{
enum class BoxLayoutOrientation
{
Horizontal,
Vertical
};
enum class CheckboxState
{
Checked,
Tristate,
Unchecked,
Max = Unchecked
};
enum class EchoMode
{
Hidden,
HiddenExceptLast,
Normal,
Max = Normal
};
}
#endif // NAZARA_WIDGETS_ENUMS_HPP

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@ -0,0 +1,68 @@
// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Widgets module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#pragma once
#ifndef NAZARA_WIDGETS_RICHTEXTAREAWIDGET_HPP
#define NAZARA_WIDGETS_RICHTEXTAREAWIDGET_HPP
#include <Nazara/Utility/RichTextDrawer.hpp>
#include <Nazara/Widgets/AbstractTextAreaWidget.hpp>
namespace Nz
{
class NAZARA_WIDGETS_API RichTextAreaWidget : public AbstractTextAreaWidget
{
public:
RichTextAreaWidget(BaseWidget* parent);
RichTextAreaWidget(const RichTextAreaWidget&) = delete;
RichTextAreaWidget(RichTextAreaWidget&&) = default;
~RichTextAreaWidget() = default;
void AppendText(const std::string& text);
void Clear() override;
void Erase(std::size_t firstGlyph, std::size_t lastGlyph) override;
inline unsigned int GetCharacterSize() const;
inline float GetCharacterSpacingOffset() const;
inline float GetLineSpacingOffset() const;
inline const Color& GetTextColor() const;
inline const std::shared_ptr<Font>& GetTextFont() const;
inline const Color& GetTextOutlineColor() const;
inline float GetTextOutlineThickness() const;
inline TextStyleFlags GetTextStyle() const;
inline void SetCharacterSize(unsigned int characterSize);
inline void SetCharacterSpacingOffset(float offset);
inline void SetLineSpacingOffset(float offset);
inline void SetTextColor(const Color& color);
inline void SetTextFont(std::shared_ptr<Font> font);
inline void SetTextOutlineColor(const Color& color);
inline void SetTextOutlineThickness(float thickness);
inline void SetTextStyle(TextStyleFlags style);
void Write(const std::string& text, std::size_t glyphPosition) override;
RichTextAreaWidget& operator=(const RichTextAreaWidget&) = delete;
RichTextAreaWidget& operator=(RichTextAreaWidget&&) = default;
private:
AbstractTextDrawer& GetTextDrawer() override;
const AbstractTextDrawer& GetTextDrawer() const override;
void HandleIndentation(bool add) override;
void HandleSelectionIndentation(bool add) override;
void HandleWordCursorMove(bool left) override;
void UpdateDisplayText() override;
RichTextDrawer m_drawer;
};
}
#include <Nazara/Widgets/RichTextAreaWidget.inl>
#endif // NAZARA_WIDGETS_RICHTEXTAREAWIDGET_HPP

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@ -0,0 +1,91 @@
// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Widgets module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Widgets/RichTextAreaWidget.hpp>
#include <Nazara/Widgets/Debug.hpp>
namespace Nz
{
inline unsigned int RichTextAreaWidget::GetCharacterSize() const
{
return m_drawer.GetDefaultCharacterSize();
}
inline float RichTextAreaWidget::GetCharacterSpacingOffset() const
{
return m_drawer.GetDefaultCharacterSpacingOffset();
}
inline float RichTextAreaWidget::GetLineSpacingOffset() const
{
return m_drawer.GetDefaultLineSpacingOffset();
}
inline const Color& RichTextAreaWidget::GetTextColor() const
{
return m_drawer.GetDefaultColor();
}
inline const std::shared_ptr<Font>& RichTextAreaWidget::GetTextFont() const
{
return m_drawer.GetDefaultFont();
}
inline const Color& RichTextAreaWidget::GetTextOutlineColor() const
{
return m_drawer.GetDefaultOutlineColor();
}
inline float RichTextAreaWidget::GetTextOutlineThickness() const
{
return m_drawer.GetDefaultOutlineThickness();
}
inline TextStyleFlags RichTextAreaWidget::GetTextStyle() const
{
return m_drawer.GetDefaultStyle();
}
inline void RichTextAreaWidget::SetCharacterSize(unsigned int characterSize)
{
m_drawer.SetDefaultCharacterSize(characterSize);
}
inline void RichTextAreaWidget::SetCharacterSpacingOffset(float offset)
{
m_drawer.SetDefaultCharacterSpacingOffset(offset);
}
inline void RichTextAreaWidget::SetLineSpacingOffset(float offset)
{
m_drawer.SetDefaultLineSpacingOffset(offset);
}
inline void RichTextAreaWidget::SetTextColor(const Color& color)
{
m_drawer.SetDefaultColor(color);
}
inline void RichTextAreaWidget::SetTextFont(std::shared_ptr<Font> font)
{
m_drawer.SetDefaultFont(std::move(font));
}
inline void RichTextAreaWidget::SetTextOutlineColor(const Color& color)
{
m_drawer.SetDefaultOutlineColor(color);
}
inline void RichTextAreaWidget::SetTextOutlineThickness(float thickness)
{
m_drawer.SetDefaultOutlineThickness(thickness);
}
inline void RichTextAreaWidget::SetTextStyle(TextStyleFlags style)
{
m_drawer.SetDefaultStyle(style);
}
}
#include <Nazara/Widgets/DebugOff.hpp>

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@ -0,0 +1,77 @@
// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Widgets module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#pragma once
#ifndef NAZARA_WIDGETS_TEXTAREAWIDGET_HPP
#define NAZARA_WIDGETS_TEXTAREAWIDGET_HPP
#include <Nazara/Utility/SimpleTextDrawer.hpp>
#include <Nazara/Widgets/AbstractTextAreaWidget.hpp>
namespace Nz
{
class NAZARA_WIDGETS_API TextAreaWidget : public AbstractTextAreaWidget
{
public:
TextAreaWidget(BaseWidget* parent);
TextAreaWidget(const TextAreaWidget&) = delete;
TextAreaWidget(TextAreaWidget&&) = default;
~TextAreaWidget() = default;
void AppendText(const std::string& text);
void Clear() override;
using AbstractTextAreaWidget::Erase;
void Erase(std::size_t firstGlyph, std::size_t lastGlyph) override;
inline unsigned int GetCharacterSize() const;
inline const std::string& GetDisplayText() const;
inline float GetCharacterSpacingOffset() const;
inline float GetLineSpacingOffset() const;
inline const std::string& GetText() const;
inline const Color& GetTextColor() const;
inline const std::shared_ptr<Font>& GetTextFont() const;
inline const Color& GetTextOulineColor() const;
inline float GetTextOulineThickness() const;
inline TextStyleFlags GetTextStyle() const;
inline void SetCharacterSize(unsigned int characterSize);
inline void SetCharacterSpacingOffset(float offset);
inline void SetLineSpacingOffset(float offset);
inline void SetText(const std::string& text);
inline void SetTextColor(const Color& text);
inline void SetTextFont(std::shared_ptr<Font> font);
inline void SetTextOutlineColor(const Color& color);
inline void SetTextOutlineThickness(float thickness);
inline void SetTextStyle(TextStyleFlags style);
using AbstractTextAreaWidget::Write;
void Write(const std::string& text, std::size_t glyphPosition) override;
TextAreaWidget& operator=(const TextAreaWidget&) = delete;
TextAreaWidget& operator=(TextAreaWidget&&) = default;
NazaraSignal(OnTextChanged, const AbstractTextAreaWidget* /*textArea*/, const std::string& /*text*/);
private:
AbstractTextDrawer& GetTextDrawer() override;
const AbstractTextDrawer& GetTextDrawer() const override;
void HandleIndentation(bool add) override;
void HandleSelectionIndentation(bool add) override;
void HandleWordCursorMove(bool left) override;
void UpdateDisplayText() override;
void UpdateMinimumSize();
SimpleTextDrawer m_drawer;
std::string m_text;
};
}
#include <Nazara/Widgets/TextAreaWidget.inl>
#endif // NAZARA_WIDGETS_TEXTAREAWIDGET_HPP

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@ -0,0 +1,127 @@
// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Widgets module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Widgets/TextAreaWidget.hpp>
#include <Nazara/Widgets/Debug.hpp>
namespace Nz
{
inline unsigned int TextAreaWidget::GetCharacterSize() const
{
return m_drawer.GetCharacterSize();
}
inline const std::string& TextAreaWidget::GetDisplayText() const
{
return m_drawer.GetText();
}
inline float TextAreaWidget::GetCharacterSpacingOffset() const
{
return m_drawer.GetCharacterSpacingOffset();
}
inline float TextAreaWidget::GetLineSpacingOffset() const
{
return m_drawer.GetLineSpacingOffset();
}
inline const std::string& TextAreaWidget::GetText() const
{
return m_text;
}
inline const Color& TextAreaWidget::GetTextColor() const
{
return m_drawer.GetColor();
}
inline const std::shared_ptr<Font>& TextAreaWidget::GetTextFont() const
{
return m_drawer.GetFont();
}
inline const Color& TextAreaWidget::GetTextOulineColor() const
{
return m_drawer.GetOutlineColor();
}
inline float TextAreaWidget::GetTextOulineThickness() const
{
return m_drawer.GetOutlineThickness();
}
inline TextStyleFlags TextAreaWidget::GetTextStyle() const
{
return m_drawer.GetStyle();
}
inline void TextAreaWidget::SetCharacterSize(unsigned int characterSize)
{
m_drawer.SetCharacterSize(characterSize);
UpdateMinimumSize();
UpdateDisplayText();
}
inline void TextAreaWidget::SetCharacterSpacingOffset(float offset)
{
m_drawer.SetCharacterSpacingOffset(offset);
UpdateMinimumSize();
UpdateDisplayText();
}
inline void TextAreaWidget::SetLineSpacingOffset(float offset)
{
m_drawer.SetLineSpacingOffset(offset);
UpdateDisplayText();
}
inline void TextAreaWidget::SetText(const std::string& text)
{
m_text = text;
OnTextChanged(this, m_text);
UpdateDisplayText();
}
inline void TextAreaWidget::SetTextColor(const Color& text)
{
m_drawer.SetColor(text);
UpdateDisplayText();
}
inline void TextAreaWidget::SetTextFont(std::shared_ptr<Font> font)
{
m_drawer.SetFont(std::move(font));
UpdateDisplayText();
}
inline void TextAreaWidget::SetTextOutlineColor(const Color& color)
{
m_drawer.SetOutlineColor(color);
UpdateDisplayText();
}
inline void TextAreaWidget::SetTextOutlineThickness(float thickness)
{
m_drawer.SetOutlineThickness(thickness);
UpdateDisplayText();
}
inline void TextAreaWidget::SetTextStyle(TextStyleFlags style)
{
m_drawer.SetStyle(style);
UpdateDisplayText();
}
}
#include <Nazara/Widgets/DebugOff.hpp>

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@ -4,6 +4,7 @@
#include <Nazara/Core/StringExt.hpp>
#include <Nazara/Core/Algorithm.hpp>
#include <Nazara/Core/Error.hpp>
#include <Utfcpp/utf8.h>
#include <cinttypes>
#include <Nazara/Core/Debug.hpp>
@ -91,6 +92,11 @@ namespace Nz
};
}
std::size_t ComputeCharacterCount(const std::string_view& str)
{
return utf8::distance(str.data(), str.data() + str.size());
}
std::string FromUtf16String(const std::u16string_view& u16str)
{
std::string result;
@ -112,6 +118,33 @@ namespace Nz
return WideConverter<sizeof(wchar_t)>::From(wstr.data(), wstr.size());
}
std::size_t GetCharacterPosition(const std::string_view& str, std::size_t characterIndex)
{
const char* ptr = str.data();
const char* end = ptr + str.size();
try
{
utf8::advance(ptr, characterIndex, end);
return ptr - str.data();
}
catch (utf8::not_enough_room& /*e*/)
{
// Returns npos
}
catch (utf8::exception& e)
{
NazaraError("UTF-8 error: " + std::string(e.what()));
}
catch (std::exception& e)
{
NazaraError(e.what());
}
return std::string::npos;
}
std::string_view GetWord(const std::string_view& str, std::size_t wordIndex)
{
std::size_t pos = 0;

View File

@ -0,0 +1,510 @@
// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Widgets module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Widgets/AbstractTextAreaWidget.hpp>
#include <Nazara/Core/StringExt.hpp>
#include <Nazara/Core/Unicode.hpp>
#include <Nazara/Graphics/Components/GraphicsComponent.hpp>
#include <Nazara/Utility/Font.hpp>
#include <Nazara/Utility/Components/NodeComponent.hpp>
#include <Nazara/Widgets/Canvas.hpp>
#include <Nazara/Widgets/Widgets.hpp>
#include <Nazara/Widgets/Debug.hpp>
namespace Nz
{
namespace
{
constexpr float paddingWidth = 5.f;
constexpr float paddingHeight = 3.f;
}
AbstractTextAreaWidget::AbstractTextAreaWidget(BaseWidget* parent) :
BaseWidget(parent),
m_characterFilter(),
m_echoMode(EchoMode::Normal),
m_cursorPositionBegin(0U, 0U),
m_cursorPositionEnd(0U, 0U),
m_isLineWrapEnabled(false),
m_isMouseButtonDown(false),
m_multiLineEnabled(false),
m_readOnly(false),
m_tabEnabled(false)
{
m_textSprite = std::make_shared<TextSprite>(Widgets::Instance()->GetTransparentMaterial());
auto& registry = GetRegistry();
m_textEntity = CreateEntity();
auto& gfxComponent = registry.emplace<GraphicsComponent>(m_textEntity, IsVisible());
gfxComponent.AttachRenderable(m_textSprite, GetCanvas()->GetRenderMask());
auto& textNode = GetRegistry().emplace<NodeComponent>(m_textEntity);
textNode.SetParent(this);
textNode.SetPosition(paddingWidth, paddingHeight);
SetCursor(SystemCursor::Text);
EnableBackground(true);
}
void AbstractTextAreaWidget::Clear()
{
AbstractTextDrawer& textDrawer = GetTextDrawer();
textDrawer.Clear();
UpdateTextSprite();
m_cursorPositionBegin.MakeZero();
m_cursorPositionEnd.MakeZero();
RefreshCursor();
}
void AbstractTextAreaWidget::EnableLineWrap(bool enable)
{
if (m_isLineWrapEnabled != enable)
{
m_isLineWrapEnabled = enable;
AbstractTextDrawer& textDrawer = GetTextDrawer();
if (enable)
textDrawer.SetMaxLineWidth(GetWidth());
else
textDrawer.SetMaxLineWidth(std::numeric_limits<float>::infinity());
UpdateTextSprite();
}
}
Vector2ui AbstractTextAreaWidget::GetHoveredGlyph(float x, float y) const
{
const AbstractTextDrawer& textDrawer = GetTextDrawer();
auto& textNode = GetRegistry().get<NodeComponent>(m_textEntity);
Vector2f textPosition = Vector2f(textNode.GetPosition(CoordSys::Local));
x -= textPosition.x;
y -= textPosition.y;
std::size_t glyphCount = textDrawer.GetGlyphCount();
if (glyphCount > 0)
{
std::size_t lineCount = textDrawer.GetLineCount();
std::size_t line = 0U;
for (; line < lineCount - 1; ++line)
{
Rectf lineBounds = textDrawer.GetLine(line).bounds;
if (lineBounds.GetMaximum().y > y)
break;
}
std::size_t upperLimit = (line != lineCount - 1) ? textDrawer.GetLine(line + 1).glyphIndex : glyphCount + 1;
std::size_t firstLineGlyph = textDrawer.GetLine(line).glyphIndex;
std::size_t i = firstLineGlyph;
for (; i < upperLimit - 1; ++i)
{
Rectf bounds = textDrawer.GetGlyph(i).bounds;
if (x < bounds.x + bounds.width * 0.75f)
break;
}
return Vector2ui(Vector2<std::size_t>(i - firstLineGlyph, line));
}
return Vector2ui::Zero();
}
void AbstractTextAreaWidget::Layout()
{
BaseWidget::Layout();
if (m_isLineWrapEnabled)
{
AbstractTextDrawer& textDrawer = GetTextDrawer();
textDrawer.SetMaxLineWidth(GetWidth());
UpdateTextSprite();
}
RefreshCursor();
}
bool AbstractTextAreaWidget::IsFocusable() const
{
return !m_readOnly;
}
void AbstractTextAreaWidget::OnFocusLost()
{
// Hide cursors
auto& registry = GetRegistry();
for (auto& cursor : m_cursors)
registry.get<GraphicsComponent>(cursor.entity).Hide();
}
void AbstractTextAreaWidget::OnFocusReceived()
{
if (!m_readOnly)
{
// Show cursors
auto& registry = GetRegistry();
for (auto& cursor : m_cursors)
registry.get<GraphicsComponent>(cursor.entity).Show();
}
}
bool AbstractTextAreaWidget::OnKeyPressed(const WindowEvent::KeyEvent& key)
{
const AbstractTextDrawer& textDrawer = GetTextDrawer();
switch (key.virtualKey)
{
case Keyboard::VKey::Backspace:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyBackspace(this, &ignoreDefaultAction);
std::size_t cursorGlyphEnd = GetGlyphIndex(m_cursorPositionEnd);
if (ignoreDefaultAction || cursorGlyphEnd == 0)
return true;
// When a text is selected, delete key does the same as delete and leave the character behind it
if (HasSelection())
EraseSelection();
else
{
MoveCursor(-1);
Erase(GetGlyphIndex(m_cursorPositionBegin));
}
return true;
}
case Keyboard::VKey::Delete:
{
if (HasSelection())
EraseSelection();
else
Erase(GetGlyphIndex(m_cursorPositionBegin));
return true;
}
case Keyboard::VKey::Down:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyDown(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (HasSelection())
SetCursorPosition(m_cursorPositionEnd);
MoveCursor({0, 1});
return true;
}
case Keyboard::VKey::End:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyEnd(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
std::size_t lineCount = textDrawer.GetLineCount();
if (key.control && lineCount > 0)
SetCursorPosition({ static_cast<unsigned int>(textDrawer.GetLineGlyphCount(lineCount - 1)), static_cast<unsigned int>(lineCount - 1) });
else
SetCursorPosition({ static_cast<unsigned int>(textDrawer.GetLineGlyphCount(m_cursorPositionEnd.y)), m_cursorPositionEnd.y });
return true;
}
case Keyboard::VKey::Home:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyHome(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
SetCursorPosition({ 0U, key.control ? 0U : m_cursorPositionEnd.y });
return true;
}
case Keyboard::VKey::Left:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyLeft(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (HasSelection())
SetCursorPosition(m_cursorPositionBegin);
else if (key.control)
HandleWordCursorMove(true);
else
MoveCursor(-1);
return true;
}
case Keyboard::VKey::Return:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyReturn(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (!m_multiLineEnabled)
break;
if (HasSelection())
EraseSelection();
Write("\n");
return true;
}
case Keyboard::VKey::Right:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyRight(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (HasSelection())
SetCursorPosition(m_cursorPositionEnd);
else if (key.control)
HandleWordCursorMove(false);
else
MoveCursor(1);
return true;
}
case Keyboard::VKey::Up:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyUp(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (HasSelection())
SetCursorPosition(m_cursorPositionBegin);
MoveCursor({0, -1});
return true;
}
case Keyboard::VKey::Tab:
{
if (!m_tabEnabled)
return false;
if (HasSelection())
HandleSelectionIndentation(!key.shift);
else
HandleIndentation(!key.shift);
return true;
}
default:
break;
}
return false;
}
void AbstractTextAreaWidget::OnKeyReleased(const WindowEvent::KeyEvent& /*key*/)
{
}
void AbstractTextAreaWidget::OnMouseButtonPress(int x, int y, Mouse::Button button)
{
if (button == Mouse::Left)
{
SetFocus();
Vector2ui hoveredGlyph = GetHoveredGlyph(float(x), float(y));
// Shift extends selection
if (Keyboard::IsKeyPressed(Keyboard::VKey::LShift) || Keyboard::IsKeyPressed(Keyboard::VKey::RShift))
SetSelection(hoveredGlyph, m_selectionCursor);
else
{
SetCursorPosition(hoveredGlyph);
m_selectionCursor = m_cursorPositionBegin;
}
m_isMouseButtonDown = true;
}
}
void AbstractTextAreaWidget::OnMouseButtonRelease(int, int, Mouse::Button button)
{
if (button == Mouse::Left)
m_isMouseButtonDown = false;
}
void AbstractTextAreaWidget::OnMouseEnter()
{
if (!Mouse::IsButtonPressed(Mouse::Left))
m_isMouseButtonDown = false;
}
void AbstractTextAreaWidget::OnMouseMoved(int x, int y, int deltaX, int deltaY)
{
if (m_isMouseButtonDown)
SetSelection(m_selectionCursor, GetHoveredGlyph(float(x), float(y)));
}
void AbstractTextAreaWidget::OnTextEntered(char32_t character, bool /*repeated*/)
{
if (m_readOnly)
return;
if (Unicode::GetCategory(character) == Unicode::Category_Other_Control || (m_characterFilter && !m_characterFilter(character)))
return;
if (HasSelection())
EraseSelection();
Write(FromUtf32String(std::u32string_view(&character, 1)));
}
void AbstractTextAreaWidget::RefreshCursor()
{
if (m_readOnly)
return;
const AbstractTextDrawer& textDrawer = GetTextDrawer();
auto GetGlyph = [&](const Vector2ui& glyphPosition, std::size_t* glyphIndex) -> const AbstractTextDrawer::Glyph*
{
if (glyphPosition.y >= textDrawer.GetLineCount())
return nullptr;
const auto& lineInfo = textDrawer.GetLine(glyphPosition.y);
std::size_t cursorGlyph = GetGlyphIndex({ glyphPosition.x, glyphPosition.y });
if (glyphIndex)
*glyphIndex = cursorGlyph;
std::size_t glyphCount = textDrawer.GetGlyphCount();
if (glyphCount > 0 && lineInfo.glyphIndex < cursorGlyph)
{
const auto& glyph = textDrawer.GetGlyph(std::min(cursorGlyph, glyphCount - 1));
return &glyph;
}
else
return nullptr;
};
auto& registry = GetRegistry();
// Move text so that cursor always lies in drawer bounds
const auto* lastGlyph = GetGlyph(m_cursorPositionEnd, nullptr);
float glyphPos = (lastGlyph) ? lastGlyph->bounds.x : 0.f;
float glyphWidth = (lastGlyph) ? lastGlyph->bounds.width : 0.f;
auto& textNode = registry.get<NodeComponent>(m_textEntity);
float textPosition = textNode.GetPosition(CoordSys::Local).x - paddingWidth;
float cursorPosition = glyphPos + textPosition;
float width = GetWidth();
if (width <= textDrawer.GetBounds().width)
{
if (cursorPosition + glyphWidth > width)
textNode.Move(width - cursorPosition - glyphWidth, 0.f);
else if (cursorPosition - glyphWidth < 0.f)
textNode.Move(-cursorPosition + glyphWidth, 0.f);
}
else
textNode.Move(-textPosition, 0.f); //< Reset text position if we have enough room to show everything
// Create/destroy cursor entities and sprites
std::size_t selectionLineCount = m_cursorPositionEnd.y - m_cursorPositionBegin.y + 1;
std::size_t oldSpriteCount = m_cursors.size();
if (m_cursors.size() < selectionLineCount)
{
m_cursors.resize(selectionLineCount);
for (std::size_t i = oldSpriteCount; i < m_cursors.size(); ++i)
{
m_cursors[i].sprite = std::make_shared<Sprite>(Widgets::Instance()->GetTransparentMaterial());
m_cursors[i].entity = CreateEntity();
registry.emplace<GraphicsComponent>(m_cursors[i].entity, HasFocus()).AttachRenderable(m_cursors[i].sprite);
registry.emplace<NodeComponent>(m_cursors[i].entity).SetParent(textNode);
}
}
else if (m_cursors.size() > selectionLineCount)
{
for (std::size_t i = selectionLineCount; i < m_cursors.size(); ++i)
DestroyEntity(m_cursors[i].entity);
m_cursors.resize(selectionLineCount);
}
// Resize every cursor sprite
for (unsigned int i = m_cursorPositionBegin.y; i <= m_cursorPositionEnd.y; ++i)
{
const auto& lineInfo = textDrawer.GetLine(i);
auto& cursor = m_cursors[i - m_cursorPositionBegin.y];
if (i == m_cursorPositionBegin.y || i == m_cursorPositionEnd.y)
{
// Partial selection (or no selection)
auto GetGlyphPos = [&](const Vector2ui& glyphPosition)
{
std::size_t glyphIndex;
const auto* glyph = GetGlyph(glyphPosition, &glyphIndex);
if (glyph)
{
float position = glyph->bounds.x;
if (glyphIndex >= textDrawer.GetGlyphCount())
position += glyph->bounds.width;
return position;
}
else
return 0.f;
};
float beginX = (i == m_cursorPositionBegin.y) ? GetGlyphPos({ m_cursorPositionBegin.x, i }) : 0.f;
float endX = (i == m_cursorPositionEnd.y) ? GetGlyphPos({ m_cursorPositionEnd.x, i }) : lineInfo.bounds.width;
float spriteSize = std::max(endX - beginX, 1.f);
cursor.sprite->SetColor((m_cursorPositionBegin == m_cursorPositionEnd) ? Color::Black : Color(0, 0, 0, 50));
cursor.sprite->SetSize(Vector2f(spriteSize, lineInfo.bounds.height));
registry.get<NodeComponent>(cursor.entity).SetPosition(beginX, lineInfo.bounds.y);
}
else
{
// Full line selection
cursor.sprite->SetColor(Color(0, 0, 0, 50));
cursor.sprite->SetSize(Vector2f(lineInfo.bounds.width, lineInfo.bounds.height));
registry.get<NodeComponent>(cursor.entity).SetPosition(0.f, lineInfo.bounds.y);
}
}
}
void AbstractTextAreaWidget::UpdateTextSprite()
{
m_textSprite->Update(GetTextDrawer());
SetPreferredSize(Vector2f(m_textSprite->GetAABB().GetLengths()));
}
}

View File

@ -0,0 +1,198 @@
// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Widgets module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Widgets/RichTextAreaWidget.hpp>
#include <Nazara/Widgets/Debug.hpp>
namespace Nz
{
RichTextAreaWidget::RichTextAreaWidget(BaseWidget* parent) :
AbstractTextAreaWidget(parent)
{
Layout();
}
void RichTextAreaWidget::AppendText(const std::string& text)
{
//m_text += text;
switch (m_echoMode)
{
case EchoMode::Normal:
m_drawer.AppendText(text);
break;
case EchoMode::Hidden:
m_drawer.AppendText(std::string(ComputeCharacterCount(text), '*'));
break;
case EchoMode::HiddenExceptLast:
{
// TODO
/*m_drawer.Clear();
std::size_t textLength = m_text.GetLength();
if (textLength >= 2)
{
std::size_t lastCharacterPosition = m_text.GetCharacterPosition(textLength - 2);
if (lastCharacterPosition != std::string::npos)
m_drawer.AppendText(std::string(textLength - 1, '*'));
}
if (textLength >= 1)
m_drawer.AppendText(m_text.SubString(m_text.GetCharacterPosition(textLength - 1)));*/
break;
}
}
UpdateTextSprite();
//OnTextChanged(this, m_text);
}
void RichTextAreaWidget::Clear()
{
AbstractTextAreaWidget::Clear();
}
void RichTextAreaWidget::Erase(std::size_t firstGlyph, std::size_t lastGlyph)
{
if (firstGlyph > lastGlyph)
std::swap(firstGlyph, lastGlyph);
std::size_t textLength = m_drawer.GetGlyphCount();
if (firstGlyph > textLength)
return;
std::size_t firstBlock = m_drawer.FindBlock(firstGlyph);
std::size_t lastBlock = m_drawer.FindBlock((lastGlyph > 0) ? lastGlyph - 1 : lastGlyph);
if (firstBlock == lastBlock)
{
const std::string& blockText = m_drawer.GetBlockText(firstBlock);
std::size_t blockFirstGlyph = m_drawer.GetBlockFirstGlyphIndex(firstBlock);
std::string newText;
if (firstGlyph > blockFirstGlyph)
{
std::size_t characterPosition = GetCharacterPosition(blockText, firstGlyph - blockFirstGlyph);
NazaraAssert(characterPosition != std::string::npos, "Invalid character position");
newText.append(blockText.substr(0, characterPosition - 1));
}
if (lastGlyph < textLength)
newText.append(blockText.substr(GetCharacterPosition(blockText, lastGlyph - blockFirstGlyph)));
if (!newText.empty())
m_drawer.SetBlockText(firstBlock, std::move(newText));
else
m_drawer.RemoveBlock(firstBlock);
}
else
{
const std::string& lastBlockText = m_drawer.GetBlockText(lastBlock);
std::size_t lastBlockGlyphIndex = m_drawer.GetBlockFirstGlyphIndex(lastBlock);
// First, update/delete last block
std::size_t lastCharPos = GetCharacterPosition(lastBlockText, lastGlyph - lastBlockGlyphIndex);
if (lastCharPos != std::string::npos)
{
std::string newText = lastBlockText.substr(lastCharPos);
if (!newText.empty())
m_drawer.SetBlockText(lastBlock, std::move(newText));
else
m_drawer.RemoveBlock(lastBlock);
}
// And then remove all middle blocks, remove in reverse order because of index shifting
assert(lastBlock > 0);
for (std::size_t i = lastBlock - 1; i > firstBlock; --i)
m_drawer.RemoveBlock(i);
const std::string& firstBlockText = m_drawer.GetBlockText(firstBlock);
std::size_t firstBlockGlyphIndex = m_drawer.GetBlockFirstGlyphIndex(firstBlock);
// And finally update/delete first block
if (firstGlyph > firstBlockGlyphIndex)
{
std::size_t firstCharPos = GetCharacterPosition(firstBlockText, firstGlyph - firstBlockGlyphIndex - 1);
if (firstCharPos != std::string::npos)
{
std::string newText = firstBlockText.substr(0, firstCharPos);
if (!newText.empty())
m_drawer.SetBlockText(firstBlock, std::move(newText));
else
m_drawer.RemoveBlock(firstBlock);
}
}
else
m_drawer.RemoveBlock(firstBlock);
}
UpdateDisplayText();
}
void RichTextAreaWidget::Write(const std::string& text, std::size_t glyphPosition)
{
if (m_drawer.HasBlocks())
{
auto block = m_drawer.GetBlock(m_drawer.FindBlock((glyphPosition > 0) ? glyphPosition - 1 : glyphPosition));
std::size_t firstGlyph = block.GetFirstGlyphIndex();
assert(glyphPosition >= firstGlyph);
std::string blockText = block.GetText();
std::size_t characterPosition = GetCharacterPosition(blockText, glyphPosition - firstGlyph);
blockText.insert(characterPosition, text);
block.SetText(blockText);
}
else
m_drawer.AppendText(text);
SetCursorPosition(glyphPosition + ComputeCharacterCount(text));
UpdateDisplayText();
}
AbstractTextDrawer& RichTextAreaWidget::GetTextDrawer()
{
return m_drawer;
}
const AbstractTextDrawer& RichTextAreaWidget::GetTextDrawer() const
{
return m_drawer;
}
void RichTextAreaWidget::HandleIndentation(bool add)
{
}
void RichTextAreaWidget::HandleSelectionIndentation(bool add)
{
}
void RichTextAreaWidget::HandleWordCursorMove(bool left)
{
}
void RichTextAreaWidget::UpdateDisplayText()
{
/*m_drawer.Clear();
switch (m_echoMode)
{
case EchoMode_Normal:
m_drawer.AppendText(m_text);
break;
case EchoMode_Password:
case EchoMode_PasswordExceptLast:
m_drawer.AppendText(std::string(m_text.GetLength(), '*'));
break;
}*/
UpdateTextSprite();
SetCursorPosition(m_cursorPositionBegin); //< Refresh cursor position (prevent it from being outside of the text)
}
}

View File

@ -0,0 +1,255 @@
// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Widgets module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Widgets/TextAreaWidget.hpp>
#include <Nazara/Core/Unicode.hpp>
#include <Nazara/Graphics/Components/GraphicsComponent.hpp>
#include <Nazara/Utility/Font.hpp>
#include <Nazara/Utility/Components/NodeComponent.hpp>
#include <Nazara/Widgets/Debug.hpp>
namespace Nz
{
TextAreaWidget::TextAreaWidget(BaseWidget* parent) :
AbstractTextAreaWidget(parent)
{
SetCharacterSize(GetCharacterSize()); //< Actualize minimum / preferred size
Layout();
}
void TextAreaWidget::AppendText(const std::string& text)
{
m_text += text;
switch (m_echoMode)
{
case EchoMode::Normal:
m_drawer.AppendText(text);
break;
case EchoMode::Hidden:
m_drawer.AppendText(std::string(ComputeCharacterCount(text), '*'));
break;
case EchoMode::HiddenExceptLast:
{
m_drawer.Clear();
std::size_t textLength = ComputeCharacterCount(m_text);
if (textLength >= 2)
{
std::size_t lastCharacterPosition = GetCharacterPosition(m_text, textLength - 2);
if (lastCharacterPosition != std::string::npos)
m_drawer.AppendText(std::string(textLength - 1, '*'));
}
if (textLength >= 1)
m_drawer.AppendText(m_text.substr(GetCharacterPosition(m_text, textLength - 1))); //< FIXME: getting last character position could be massively optimized
break;
}
}
UpdateTextSprite();
OnTextChanged(this, m_text);
}
void TextAreaWidget::Clear()
{
AbstractTextAreaWidget::Clear();
m_text.clear();
OnTextChanged(this, m_text);
}
void TextAreaWidget::Erase(std::size_t firstGlyph, std::size_t lastGlyph)
{
if (firstGlyph > lastGlyph)
std::swap(firstGlyph, lastGlyph);
std::size_t textLength = ComputeCharacterCount(m_text);
if (firstGlyph > textLength)
return;
std::string newText;
if (firstGlyph > 0)
{
std::size_t characterPosition = GetCharacterPosition(m_text, firstGlyph);
NazaraAssert(characterPosition != std::string::npos, "Invalid character position");
newText.append(m_text.substr(0, characterPosition));
}
if (lastGlyph < textLength)
{
std::size_t characterPosition = GetCharacterPosition(m_text, lastGlyph);
NazaraAssert(characterPosition != std::string::npos, "Invalid character position");
newText.append(m_text.substr(characterPosition));
}
SetText(newText);
}
void TextAreaWidget::Write(const std::string& text, std::size_t glyphPosition)
{
if (glyphPosition >= m_drawer.GetGlyphCount())
{
// It's faster to append than to insert in the middle
AppendText(text);
SetCursorPosition(m_drawer.GetGlyphCount());
}
else
{
m_text.insert(GetCharacterPosition(m_text, glyphPosition), text);
SetText(m_text);
SetCursorPosition(glyphPosition + ComputeCharacterCount(text));
}
}
AbstractTextDrawer& TextAreaWidget::GetTextDrawer()
{
return m_drawer;
}
const AbstractTextDrawer& TextAreaWidget::GetTextDrawer() const
{
return m_drawer;
}
void TextAreaWidget::HandleIndentation(bool add)
{
if (add)
Write("\t");
else
{
std::size_t currentGlyph = GetGlyphIndex(m_cursorPositionBegin);
if (currentGlyph > 0 && m_text[GetCharacterPosition(m_text, currentGlyph - 1U)] == '\t') // Check if previous glyph is a tab
{
Erase(currentGlyph - 1U);
if (m_cursorPositionBegin.x < static_cast<unsigned int>(m_drawer.GetLineGlyphCount(m_cursorPositionBegin.y)))
MoveCursor(-1);
}
}
}
void TextAreaWidget::HandleSelectionIndentation(bool add)
{
for (unsigned line = m_cursorPositionBegin.y; line <= m_cursorPositionEnd.y; ++line)
{
const Vector2ui cursorPositionBegin = m_cursorPositionBegin;
const Vector2ui cursorPositionEnd = m_cursorPositionEnd;
if (add)
{
Write("\t", {0U, line});
SetSelection(cursorPositionBegin + (cursorPositionBegin.y == line && cursorPositionBegin.x != 0U ? Vector2ui{ 1U, 0U } : Vector2ui{}),
cursorPositionEnd + (cursorPositionEnd.y == line ? Vector2ui{ 1U, 0U } : Vector2ui{}));
}
else
{
if (m_drawer.GetLineGlyphCount(line) == 0)
continue;
std::size_t firstGlyph = GetGlyphIndex({ 0U, line });
if (m_text[GetCharacterPosition(m_text, firstGlyph)] == '\t')
{
Erase(firstGlyph);
SetSelection(cursorPositionBegin - (cursorPositionBegin.y == line && cursorPositionBegin.x != 0U ? Vector2ui{ 1U, 0U } : Vector2ui{}),
cursorPositionEnd - (cursorPositionEnd.y == line && cursorPositionEnd.x != 0U ? Vector2ui{ 1U, 0U } : Vector2ui{}));
}
}
}
}
void TextAreaWidget::HandleWordCursorMove(bool left)
{
if (left)
{
std::size_t index = GetGlyphIndex(m_cursorPositionBegin);
if (index == 0)
return;
std::size_t spaceIndex = m_text.rfind(' ', index - 2);
std::size_t endlIndex = m_text.rfind('\n', index - 1);
if ((spaceIndex > endlIndex || endlIndex == std::string::npos) && spaceIndex != std::string::npos)
SetCursorPosition(spaceIndex + 1);
else if (endlIndex != std::string::npos)
{
if (index == endlIndex + 1)
SetCursorPosition(endlIndex);
else
SetCursorPosition(endlIndex + 1);
}
else
SetCursorPosition({ 0U, m_cursorPositionBegin.y });
}
else
{
std::size_t index = GetGlyphIndex(m_cursorPositionEnd);
std::size_t spaceIndex = m_text.find(' ', index);
std::size_t endlIndex = m_text.find('\n', index);
if (spaceIndex < endlIndex && spaceIndex != std::string::npos)
{
if (ComputeCharacterCount(m_text) > spaceIndex)
SetCursorPosition(spaceIndex + 1);
else
SetCursorPosition({ static_cast<unsigned int>(m_drawer.GetLineGlyphCount(m_cursorPositionEnd.y)), m_cursorPositionEnd.y });
}
else if (endlIndex != std::string::npos)
{
if (index == endlIndex)
SetCursorPosition(endlIndex + 1);
else
SetCursorPosition(endlIndex);
}
else
SetCursorPosition({ static_cast<unsigned int>(m_drawer.GetLineGlyphCount(m_cursorPositionEnd.y)), m_cursorPositionEnd.y });
}
}
void TextAreaWidget::UpdateDisplayText()
{
switch (m_echoMode)
{
case EchoMode::Normal:
m_drawer.SetText(m_text);
break;
case EchoMode::Hidden:
case EchoMode::HiddenExceptLast:
m_drawer.SetText(std::string(ComputeCharacterCount(m_text), '*'));
break;
}
UpdateTextSprite();
SetCursorPosition(m_cursorPositionBegin); //< Refresh cursor position (prevent it from being outside of the text)
}
void TextAreaWidget::UpdateMinimumSize()
{
std::size_t fontCount = m_drawer.GetFontCount();
float lineHeight = 0;
int spaceAdvance = 0;
for (std::size_t i = 0; i < fontCount; ++i)
{
const std::shared_ptr<Font>& font = m_drawer.GetFont(i);
const Font::SizeInfo& sizeInfo = font->GetSizeInfo(m_drawer.GetCharacterSize());
lineHeight = std::max(lineHeight, m_drawer.GetLineHeight());
spaceAdvance = std::max(spaceAdvance, sizeInfo.spaceAdvance);
}
Vector2f size = { float(spaceAdvance), lineHeight + 5.f };
SetMinimumSize(size);
}
}