SDK: Add RichTextAreaWidget (WIP)

This commit is contained in:
Lynix 2019-09-22 12:56:07 +02:00 committed by Jérôme Leclercq
parent 451b3de69c
commit 8e4df4cadc
19 changed files with 1346 additions and 859 deletions

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@ -283,6 +283,8 @@ Nazara Development Kit:
- ⚠️ TextAreaWidget::OnTextAreaCursorMove signal now uses a Vector2ui* position as its second argument (instead of a std::size_t*)
- Added TextAreaWidget::OnTextAreaSelection
- ⚠️ Console class is no longer bound to a LuaState and now has a OnCommand signal
- ⚠️ Made AbstractTextAreaWidget which is inherited by TextAreaWidget
- ⚠️ Added RichTextAreaWidget
# 0.4:

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@ -24,6 +24,7 @@ namespace Nz
namespace Ndk
{
class AbstractTextAreaWidget;
class Console;
class Entity;
class ScrollAreaWidget;
@ -59,7 +60,7 @@ namespace Ndk
NazaraSignal(OnCommand, Console* /*console*/, const Nz::String& /*command*/);
private:
void ExecuteInput(const TextAreaWidget* textArea, bool* ignoreDefaultAction);
void ExecuteInput(const AbstractTextAreaWidget* textArea, bool* ignoreDefaultAction);
void Layout() override;
struct Line

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@ -5,6 +5,7 @@
#ifndef NDK_WIDGETS_GLOBAL_HPP
#define NDK_WIDGETS_GLOBAL_HPP
#include <NDK/Widgets/AbstractTextAreaWidget.hpp>
#include <NDK/Widgets/BoxLayout.hpp>
#include <NDK/Widgets/ButtonWidget.hpp>
#include <NDK/Widgets/CheckboxWidget.hpp>
@ -12,6 +13,7 @@
#include <NDK/Widgets/ImageWidget.hpp>
#include <NDK/Widgets/LabelWidget.hpp>
#include <NDK/Widgets/ProgressBarWidget.hpp>
#include <NDK/Widgets/RichTextAreaWidget.hpp>
#include <NDK/Widgets/ScrollAreaWidget.hpp>
#include <NDK/Widgets/TextAreaWidget.hpp>

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@ -0,0 +1,135 @@
// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequisites.hpp
#pragma once
#ifndef NDK_WIDGETS_ABSTRACTTEXTAREAWIDGET_HPP
#define NDK_WIDGETS_ABSTRACTTEXTAREAWIDGET_HPP
#include <Nazara/Graphics/TextSprite.hpp>
#include <Nazara/Utility/AbstractTextDrawer.hpp>
#include <NDK/BaseWidget.hpp>
#include <NDK/Widgets/Enums.hpp>
#include <functional>
#include <vector>
namespace Ndk
{
class NDK_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();
//virtual TextAreaWidget* Clone() const = 0;
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 Nz::Vector2ui& GetCursorPosition() const;
inline Nz::Vector2ui GetCursorPosition(std::size_t glyphIndex) const;
inline EchoMode GetEchoMode() const;
inline std::size_t GetGlyphIndex() const;
inline std::size_t GetGlyphIndex(const Nz::Vector2ui& cursorPosition) const;
inline const Nz::String& GetText() const;
Nz::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 Nz::Vector2i& offset);
inline Nz::Vector2ui NormalizeCursorPosition(Nz::Vector2ui cursorPosition) const;
inline void SetCharacterFilter(CharacterFilter filter);
inline void SetCursorPosition(std::size_t glyphIndex);
inline void SetCursorPosition(Nz::Vector2ui cursorPosition);
inline void SetEchoMode(EchoMode echoMode);
inline void SetReadOnly(bool readOnly = true);
inline void SetSelection(Nz::Vector2ui fromPosition, Nz::Vector2ui toPosition);
inline void Write(const Nz::String& text);
inline void Write(const Nz::String& text, const Nz::Vector2ui& glyphPosition);
virtual void Write(const Nz::String& text, std::size_t glyphPosition) = 0;
AbstractTextAreaWidget& operator=(const AbstractTextAreaWidget&) = delete;
AbstractTextAreaWidget& operator=(AbstractTextAreaWidget&&) = default;
NazaraSignal(OnTextAreaCursorMove, const AbstractTextAreaWidget* /*textArea*/, Nz::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*/, Nz::Vector2ui* /*start*/, Nz::Vector2ui* /*end*/);
protected:
virtual Nz::AbstractTextDrawer& GetTextDrawer() = 0;
virtual const Nz::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 Nz::WindowEvent::KeyEvent& key) override;
void OnKeyReleased(const Nz::WindowEvent::KeyEvent& key) override;
void OnMouseButtonPress(int /*x*/, int /*y*/, Nz::Mouse::Button button) override;
void OnMouseButtonRelease(int /*x*/, int /*y*/, Nz::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(Nz::Vector2ui cursorPosition);
void RefreshCursor();
virtual void UpdateDisplayText() = 0;
void UpdateTextSprite();
CharacterFilter m_characterFilter;
EchoMode m_echoMode;
EntityHandle m_cursorEntity;
EntityHandle m_textEntity;
Nz::TextSpriteRef m_textSprite;
Nz::Vector2ui m_cursorPositionBegin;
Nz::Vector2ui m_cursorPositionEnd;
Nz::Vector2ui m_selectionCursor;
std::vector<Nz::SpriteRef> m_cursorSprites;
bool m_isLineWrapEnabled;
bool m_isMouseButtonDown;
bool m_multiLineEnabled;
bool m_readOnly;
bool m_tabEnabled; // writes (Shift+)Tab character if set to true
};
}
#include <NDK/Widgets/AbstractTextAreaWidget.inl>
#endif // NDK_WIDGETS_ABSTRACTTEXTAREAWIDGET_HPP

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@ -0,0 +1,252 @@
// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequisites.hpp
#include <NDK/Widgets/AbstractTextAreaWidget.hpp>
namespace Ndk
{
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 Nz::Vector2ui& AbstractTextAreaWidget::GetCursorPosition() const
{
return m_cursorPositionBegin;
}
Nz::Vector2ui AbstractTextAreaWidget::GetCursorPosition(std::size_t glyphIndex) const
{
const Nz::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);
Nz::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 Nz::Vector2ui& cursorPosition) const
{
const Nz::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 Nz::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;
}
};
Nz::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 Nz::Vector2ui AbstractTextAreaWidget::NormalizeCursorPosition(Nz::Vector2ui cursorPosition) const
{
const Nz::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)
{
Nz::Vector2ui position = GetCursorPosition(glyphIndex);
Nz::Vector2ui newPosition = position;
OnTextAreaCursorMove(this, &newPosition);
if (position == newPosition)
SetCursorPositionInternal(position);
else
SetCursorPositionInternal(GetGlyphIndex(newPosition));
}
inline void AbstractTextAreaWidget::SetCursorPosition(Nz::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(Nz::Vector2ui fromPosition, Nz::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 Nz::String& text)
{
Write(text, GetGlyphIndex(m_cursorPositionBegin));
}
inline void AbstractTextAreaWidget::Write(const Nz::String& text, const Nz::Vector2ui& glyphPosition)
{
Write(text, GetGlyphIndex(glyphPosition));
}
void AbstractTextAreaWidget::SetCursorPositionInternal(std::size_t glyphIndex)
{
return SetCursorPositionInternal(GetCursorPosition(glyphIndex));
}
inline void AbstractTextAreaWidget::SetCursorPositionInternal(Nz::Vector2ui cursorPosition)
{
m_cursorPositionBegin = cursorPosition;
m_cursorPositionEnd = m_cursorPositionBegin;
RefreshCursor();
}
}

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@ -0,0 +1,58 @@
// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequisites.hpp
#pragma once
#ifndef NDK_WIDGETS_RICHTEXTAREAWIDGET_HPP
#define NDK_WIDGETS_RICHTEXTAREAWIDGET_HPP
#include <Nazara/Utility/RichTextDrawer.hpp>
#include <NDK/Widgets/AbstractTextAreaWidget.hpp>
namespace Ndk
{
class NDK_API RichTextAreaWidget : public AbstractTextAreaWidget
{
public:
RichTextAreaWidget(BaseWidget* parent);
RichTextAreaWidget(const RichTextAreaWidget&) = delete;
RichTextAreaWidget(RichTextAreaWidget&&) = default;
~RichTextAreaWidget() = default;
void AppendText(const Nz::String& text);
void Clear() override;
void Erase(std::size_t firstGlyph, std::size_t lastGlyph) override;
inline unsigned int GetCharacterSize() const;
inline const Nz::Color& GetTextColor() const;
inline Nz::Font* GetTextFont() const;
inline void SetCharacterSize(unsigned int characterSize);
inline void SetTextColor(const Nz::Color& color);
inline void SetTextFont(Nz::FontRef font);
void Write(const Nz::String& text, std::size_t glyphPosition) override;
RichTextAreaWidget& operator=(const RichTextAreaWidget&) = delete;
RichTextAreaWidget& operator=(RichTextAreaWidget&&) = default;
private:
Nz::AbstractTextDrawer& GetTextDrawer() override;
const Nz::AbstractTextDrawer& GetTextDrawer() const override;
void HandleIndentation(bool add) override;
void HandleSelectionIndentation(bool add) override;
void HandleWordCursorMove(bool left) override;
void UpdateDisplayText();
Nz::RichTextDrawer m_drawer;
};
}
#include <NDK/Widgets/RichTextAreaWidget.inl>
#endif // NDK_WIDGETS_TEXTAREAWIDGET_HPP

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@ -0,0 +1,38 @@
// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequisites.hpp
#include <NDK/Widgets/RichTextAreaWidget.hpp>
namespace Ndk
{
inline unsigned int RichTextAreaWidget::GetCharacterSize() const
{
return m_drawer.GetDefaultCharacterSize();
}
inline const Nz::Color& RichTextAreaWidget::GetTextColor() const
{
return m_drawer.GetDefaultColor();
}
inline Nz::Font* RichTextAreaWidget::GetTextFont() const
{
return m_drawer.GetDefaultFont();
}
inline void RichTextAreaWidget::SetCharacterSize(unsigned int characterSize)
{
m_drawer.SetDefaultCharacterSize(characterSize);
}
inline void RichTextAreaWidget::SetTextColor(const Nz::Color& color)
{
m_drawer.SetDefaultColor(color);
}
inline void RichTextAreaWidget::SetTextFont(Nz::FontRef font)
{
m_drawer.SetDefaultFont(std::move(font));
}
}

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@ -7,20 +7,14 @@
#ifndef NDK_WIDGETS_TEXTAREAWIDGET_HPP
#define NDK_WIDGETS_TEXTAREAWIDGET_HPP
#include <Nazara/Graphics/TextSprite.hpp>
#include <Nazara/Utility/SimpleTextDrawer.hpp>
#include <NDK/BaseWidget.hpp>
#include <NDK/Widgets/Enums.hpp>
#include <functional>
#include <vector>
#include <NDK/Widgets/AbstractTextAreaWidget.hpp>
namespace Ndk
{
class NDK_API TextAreaWidget : public BaseWidget
class NDK_API TextAreaWidget : public AbstractTextAreaWidget
{
public:
using CharacterFilter = std::function<bool(char32_t)>;
TextAreaWidget(BaseWidget* parent);
TextAreaWidget(const TextAreaWidget&) = delete;
TextAreaWidget(TextAreaWidget&&) = default;
@ -28,115 +22,46 @@ namespace Ndk
void AppendText(const Nz::String& text);
inline void Clear();
void Clear() override;
//virtual TextAreaWidget* Clone() const = 0;
using AbstractTextAreaWidget::Erase;
void Erase(std::size_t firstGlyph, std::size_t lastGlyph) override;
void EnableLineWrap(bool enable = true);
inline void EnableMultiline(bool enable = true);
inline void EnableTabWriting(bool enable = true);
inline void Erase(std::size_t glyphPosition);
void Erase(std::size_t firstGlyph, std::size_t lastGlyph);
void EraseSelection();
inline const CharacterFilter& GetCharacterFilter() const;
inline unsigned int GetCharacterSize() const;
inline const Nz::Vector2ui& GetCursorPosition() const;
inline Nz::Vector2ui GetCursorPosition(std::size_t glyphIndex) const;
inline const Nz::String& GetDisplayText() const;
inline EchoMode GetEchoMode() const;
inline std::size_t GetGlyphIndex() const;
inline std::size_t GetGlyphIndex(const Nz::Vector2ui& cursorPosition) const;
inline const Nz::String& GetText() const;
inline const Nz::Color& GetTextColor() const;
inline Nz::Font* GetTextFont() const;
inline const Nz::Color& GetTextOulineColor() const;
inline float GetTextOulineThickness() const;
Nz::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 Nz::Vector2i& offset);
inline Nz::Vector2ui NormalizeCursorPosition(Nz::Vector2ui cursorPosition) const;
inline void SetCharacterFilter(CharacterFilter filter);
void SetCharacterSize(unsigned int characterSize);
inline void SetCursorPosition(std::size_t glyphIndex);
inline void SetCursorPosition(Nz::Vector2ui cursorPosition);
inline void SetEchoMode(EchoMode echoMode);
inline void SetReadOnly(bool readOnly = true);
inline void SetSelection(Nz::Vector2ui fromPosition, Nz::Vector2ui toPosition);
inline void SetText(const Nz::String& text);
inline void SetTextColor(const Nz::Color& text);
inline void SetTextFont(Nz::FontRef font);
inline void SetTextOutlineColor(const Nz::Color& color);
inline void SetTextOutlineThickness(float thickness);
inline void Write(const Nz::String& text);
inline void Write(const Nz::String& text, const Nz::Vector2ui& glyphPosition);
void Write(const Nz::String& text, std::size_t glyphPosition);
using AbstractTextAreaWidget::Write;
void Write(const Nz::String& text, std::size_t glyphPosition) override;
TextAreaWidget& operator=(const TextAreaWidget&) = delete;
TextAreaWidget& operator=(TextAreaWidget&&) = default;
NazaraSignal(OnTextAreaCursorMove, const TextAreaWidget* /*textArea*/, Nz::Vector2ui* /*newCursorPosition*/);
NazaraSignal(OnTextAreaKeyBackspace, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyDown, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyEnd, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyHome, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyLeft, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyReturn, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyRight, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaKeyUp, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
NazaraSignal(OnTextAreaSelection, const TextAreaWidget* /*textArea*/, Nz::Vector2ui* /*start*/, Nz::Vector2ui* /*end*/);
NazaraSignal(OnTextChanged, const TextAreaWidget* /*textArea*/, const Nz::String& /*text*/);
NazaraSignal(OnTextChanged, const AbstractTextAreaWidget* /*textArea*/, const Nz::String& /*text*/);
private:
void Layout() override;
Nz::AbstractTextDrawer& GetTextDrawer() override;
const Nz::AbstractTextDrawer& GetTextDrawer() const override;
bool IsFocusable() const override;
void OnFocusLost() override;
void OnFocusReceived() override;
bool OnKeyPressed(const Nz::WindowEvent::KeyEvent& key) override;
void OnKeyReleased(const Nz::WindowEvent::KeyEvent& key) override;
void OnMouseButtonPress(int /*x*/, int /*y*/, Nz::Mouse::Button button) override;
void OnMouseButtonRelease(int /*x*/, int /*y*/, Nz::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;
void HandleIndentation(bool add) override;
void HandleSelectionIndentation(bool add) override;
void HandleWordCursorMove(bool left) override;
inline void SetCursorPositionInternal(std::size_t glyphIndex);
inline void SetCursorPositionInternal(Nz::Vector2ui cursorPosition);
void RefreshCursor();
void UpdateDisplayText();
void UpdateTextSprite();
CharacterFilter m_characterFilter;
EchoMode m_echoMode;
EntityHandle m_cursorEntity;
EntityHandle m_textEntity;
Nz::SimpleTextDrawer m_drawer;
Nz::String m_text;
Nz::TextSpriteRef m_textSprite;
Nz::Vector2ui m_cursorPositionBegin;
Nz::Vector2ui m_cursorPositionEnd;
Nz::Vector2ui m_selectionCursor;
std::vector<Nz::SpriteRef> m_cursorSprites;
bool m_isLineWrapEnabled;
bool m_isMouseButtonDown;
bool m_multiLineEnabled;
bool m_readOnly;
bool m_tabEnabled; // writes (Shift+)Tab character if set to true
};
}

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@ -6,98 +6,16 @@
namespace Ndk
{
inline void TextAreaWidget::Clear()
{
m_cursorPositionBegin.MakeZero();
m_cursorPositionEnd.MakeZero();
m_drawer.Clear();
m_text.Clear();
m_textSprite->Update(m_drawer);
SetPreferredSize(Nz::Vector2f(m_textSprite->GetBoundingVolume().obb.localBox.GetLengths()));
RefreshCursor();
OnTextChanged(this, m_text);
}
inline void TextAreaWidget::EnableMultiline(bool enable)
{
m_multiLineEnabled = enable;
}
inline void TextAreaWidget::EnableTabWriting(bool enable)
{
m_tabEnabled = enable;
}
inline void TextAreaWidget::Erase(std::size_t glyphPosition)
{
Erase(glyphPosition, glyphPosition + 1U);
}
inline const TextAreaWidget::CharacterFilter& TextAreaWidget::GetCharacterFilter() const
{
return m_characterFilter;
}
inline unsigned int TextAreaWidget::GetCharacterSize() const
{
return m_drawer.GetCharacterSize();
}
inline const Nz::Vector2ui& TextAreaWidget::GetCursorPosition() const
{
return m_cursorPositionBegin;
}
Nz::Vector2ui TextAreaWidget::GetCursorPosition(std::size_t glyphIndex) const
{
glyphIndex = std::min(glyphIndex, m_drawer.GetGlyphCount());
std::size_t lineCount = m_drawer.GetLineCount();
std::size_t line = 0U;
for (std::size_t i = line + 1; i < lineCount; ++i)
{
if (m_drawer.GetLine(i).glyphIndex > glyphIndex)
break;
line = i;
}
const auto& lineInfo = m_drawer.GetLine(line);
Nz::Vector2ui cursorPos;
cursorPos.y = static_cast<unsigned int>(line);
cursorPos.x = static_cast<unsigned int>(glyphIndex - lineInfo.glyphIndex);
return cursorPos;
}
inline const Nz::String& TextAreaWidget::GetDisplayText() const
{
return m_drawer.GetText();
}
inline EchoMode TextAreaWidget::GetEchoMode() const
{
return m_echoMode;
}
inline std::size_t TextAreaWidget::GetGlyphIndex() const
{
return GetGlyphIndex(m_cursorPositionBegin);
}
inline std::size_t TextAreaWidget::GetGlyphIndex(const Nz::Vector2ui& cursorPosition) const
{
std::size_t glyphIndex = m_drawer.GetLine(cursorPosition.y).glyphIndex + cursorPosition.x;
if (m_drawer.GetLineCount() > cursorPosition.y + 1)
glyphIndex = std::min(glyphIndex, m_drawer.GetLine(cursorPosition.y + 1).glyphIndex - 1);
else
glyphIndex = std::min(glyphIndex, m_drawer.GetGlyphCount());
return glyphIndex;
}
inline const Nz::String& TextAreaWidget::GetText() const
{
return m_text;
@ -123,144 +41,6 @@ namespace Ndk
return m_drawer.GetOutlineThickness();
}
inline bool TextAreaWidget::HasSelection() const
{
return m_cursorPositionBegin != m_cursorPositionEnd;
}
inline bool TextAreaWidget::IsLineWrapEnabled() const
{
return m_isLineWrapEnabled;
}
inline bool TextAreaWidget::IsMultilineEnabled() const
{
return m_multiLineEnabled;
}
inline bool TextAreaWidget::IsTabWritingEnabled() const
{
return m_tabEnabled;
}
inline bool TextAreaWidget::IsReadOnly() const
{
return m_readOnly;
}
inline void TextAreaWidget::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 TextAreaWidget::MoveCursor(const Nz::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;
}
};
Nz::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 Nz::Vector2ui TextAreaWidget::NormalizeCursorPosition(Nz::Vector2ui cursorPosition) const
{
std::size_t lineCount = m_drawer.GetLineCount();
if (cursorPosition.y >= lineCount)
cursorPosition.y = static_cast<unsigned int>(lineCount - 1);
const auto& lineInfo = m_drawer.GetLine(cursorPosition.y);
if (cursorPosition.y + 1 < lineCount)
{
const auto& nextLineInfo = m_drawer.GetLine(cursorPosition.y + 1);
cursorPosition.x = std::min(cursorPosition.x, static_cast<unsigned int>(nextLineInfo.glyphIndex - lineInfo.glyphIndex - 1));
}
return cursorPosition;
}
inline void TextAreaWidget::SetCharacterFilter(CharacterFilter filter)
{
m_characterFilter = std::move(filter);
}
inline void TextAreaWidget::SetCursorPosition(std::size_t glyphIndex)
{
Nz::Vector2ui position = GetCursorPosition(glyphIndex);
Nz::Vector2ui newPosition = position;
OnTextAreaCursorMove(this, &newPosition);
if (position == newPosition)
SetCursorPositionInternal(position);
else
SetCursorPositionInternal(GetGlyphIndex(newPosition));
}
inline void TextAreaWidget::SetCursorPosition(Nz::Vector2ui cursorPosition)
{
OnTextAreaCursorMove(this, &cursorPosition);
return SetCursorPositionInternal(NormalizeCursorPosition(cursorPosition));
}
inline void TextAreaWidget::SetEchoMode(EchoMode echoMode)
{
m_echoMode = echoMode;
UpdateDisplayText();
}
inline void TextAreaWidget::SetReadOnly(bool readOnly)
{
m_readOnly = readOnly;
m_cursorEntity->Enable(!m_readOnly && HasFocus());
}
inline void TextAreaWidget::SetSelection(Nz::Vector2ui fromPosition, Nz::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 TextAreaWidget::SetText(const Nz::String& text)
{
m_text = text;
@ -296,27 +76,4 @@ namespace Ndk
UpdateDisplayText();
}
inline void TextAreaWidget::Write(const Nz::String& text)
{
Write(text, GetGlyphIndex(m_cursorPositionBegin));
}
inline void TextAreaWidget::Write(const Nz::String& text, const Nz::Vector2ui& glyphPosition)
{
Write(text, GetGlyphIndex(glyphPosition));
}
void TextAreaWidget::SetCursorPositionInternal(std::size_t glyphIndex)
{
return SetCursorPositionInternal(GetCursorPosition(glyphIndex));
}
inline void TextAreaWidget::SetCursorPositionInternal(Nz::Vector2ui cursorPosition)
{
m_cursorPositionBegin = cursorPosition;
m_cursorPositionEnd = m_cursorPositionBegin;
RefreshCursor();
}
}

View File

@ -61,25 +61,25 @@ namespace Ndk
// Protect input prefix from erasure/selection
m_input->SetCursorPosition(s_inputPrefixSize);
m_input->OnTextAreaCursorMove.Connect([](const TextAreaWidget* textArea, Nz::Vector2ui* newCursorPos)
m_input->OnTextAreaCursorMove.Connect([](const AbstractTextAreaWidget* textArea, Nz::Vector2ui* newCursorPos)
{
newCursorPos->x = std::max(newCursorPos->x, static_cast<unsigned int>(s_inputPrefixSize));
});
m_input->OnTextAreaSelection.Connect([](const TextAreaWidget* textArea, Nz::Vector2ui* start, Nz::Vector2ui* end)
m_input->OnTextAreaSelection.Connect([](const AbstractTextAreaWidget* textArea, Nz::Vector2ui* start, Nz::Vector2ui* end)
{
start->x = std::max(start->x, static_cast<unsigned int>(s_inputPrefixSize));
end->x = std::max(end->x, static_cast<unsigned int>(s_inputPrefixSize));
});
m_input->OnTextAreaKeyBackspace.Connect([](const TextAreaWidget* textArea, bool* ignoreDefaultAction)
m_input->OnTextAreaKeyBackspace.Connect([](const AbstractTextAreaWidget* textArea, bool* ignoreDefaultAction)
{
if (textArea->GetGlyphIndex() <= s_inputPrefixSize)
*ignoreDefaultAction = true;
});
// Handle history
m_input->OnTextAreaKeyUp.Connect([&] (const TextAreaWidget* textArea, bool* ignoreDefaultAction)
m_input->OnTextAreaKeyUp.Connect([&] (const AbstractTextAreaWidget* textArea, bool* ignoreDefaultAction)
{
*ignoreDefaultAction = true;
@ -89,7 +89,7 @@ namespace Ndk
m_input->SetText(s_inputPrefix + m_commandHistory[m_historyPosition]);
});
m_input->OnTextAreaKeyDown.Connect([&] (const TextAreaWidget* textArea, bool* ignoreDefaultAction)
m_input->OnTextAreaKeyDown.Connect([&] (const AbstractTextAreaWidget* textArea, bool* ignoreDefaultAction)
{
*ignoreDefaultAction = true;
@ -187,7 +187,7 @@ namespace Ndk
/*!
* \brief Performs this action when an input is added to the console
*/
void Console::ExecuteInput(const TextAreaWidget* textArea, bool* ignoreDefaultAction)
void Console::ExecuteInput(const AbstractTextAreaWidget* textArea, bool* ignoreDefaultAction)
{
NazaraAssert(textArea == m_input, "Unexpected signal from an other text area");

View File

@ -0,0 +1,489 @@
// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequisites.hpp
#include <NDK/Widgets/AbstractTextAreaWidget.hpp>
#include <Nazara/Core/Unicode.hpp>
#include <Nazara/Utility/Font.hpp>
#include <NDK/Components/GraphicsComponent.hpp>
#include <NDK/Components/NodeComponent.hpp>
namespace Ndk
{
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 = Nz::TextSprite::New();
m_textEntity = CreateEntity();
m_textEntity->AddComponent<GraphicsComponent>().Attach(m_textSprite);
auto& textNode = m_textEntity->AddComponent<NodeComponent>();
textNode.SetParent(this);
textNode.SetPosition(paddingWidth, paddingHeight);
m_cursorEntity = CreateEntity();
m_cursorEntity->AddComponent<GraphicsComponent>();
m_cursorEntity->AddComponent<NodeComponent>().SetParent(m_textEntity);
m_cursorEntity->GetComponent<NodeComponent>();
m_cursorEntity->Enable(false);
SetCursor(Nz::SystemCursor_Text);
EnableBackground(true);
}
void AbstractTextAreaWidget::Clear()
{
Nz::AbstractTextDrawer& textDrawer = GetTextDrawer();
m_cursorPositionBegin.MakeZero();
m_cursorPositionEnd.MakeZero();
textDrawer.Clear();
m_textSprite->Update(textDrawer);
SetPreferredSize(Nz::Vector2f(m_textSprite->GetBoundingVolume().obb.localBox.GetLengths()));
RefreshCursor();
}
void AbstractTextAreaWidget::EnableLineWrap(bool enable)
{
if (m_isLineWrapEnabled != enable)
{
m_isLineWrapEnabled = enable;
Nz::AbstractTextDrawer& textDrawer = GetTextDrawer();
if (enable)
textDrawer.SetMaxLineWidth(GetWidth());
else
textDrawer.SetMaxLineWidth(std::numeric_limits<float>::infinity());
UpdateTextSprite();
}
}
Nz::Vector2ui AbstractTextAreaWidget::GetHoveredGlyph(float x, float y) const
{
const Nz::AbstractTextDrawer& textDrawer = GetTextDrawer();
auto& textNode = m_textEntity->GetComponent<Ndk::NodeComponent>();
Nz::Vector2f textPosition = Nz::Vector2f(textNode.GetPosition(Nz::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)
{
Nz::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)
{
Nz::Rectf bounds = textDrawer.GetGlyph(i).bounds;
if (x < bounds.x + bounds.width * 0.75f)
break;
}
return Nz::Vector2ui(Nz::Vector2<std::size_t>(i - firstLineGlyph, line));
}
return Nz::Vector2ui::Zero();
}
void AbstractTextAreaWidget::Layout()
{
BaseWidget::Layout();
if (m_isLineWrapEnabled)
{
Nz::AbstractTextDrawer& textDrawer = GetTextDrawer();
textDrawer.SetMaxLineWidth(GetWidth());
UpdateTextSprite();
}
RefreshCursor();
}
bool AbstractTextAreaWidget::IsFocusable() const
{
return !m_readOnly;
}
void AbstractTextAreaWidget::OnFocusLost()
{
m_cursorEntity->Disable();
}
void AbstractTextAreaWidget::OnFocusReceived()
{
if (!m_readOnly)
m_cursorEntity->Enable(true);
}
bool AbstractTextAreaWidget::OnKeyPressed(const Nz::WindowEvent::KeyEvent& key)
{
const Nz::AbstractTextDrawer& textDrawer = GetTextDrawer();
switch (key.code)
{
case Nz::Keyboard::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 Nz::Keyboard::Delete:
{
if (HasSelection())
EraseSelection();
else
Erase(GetGlyphIndex(m_cursorPositionBegin));
return true;
}
case Nz::Keyboard::Down:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyDown(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (HasSelection())
SetCursorPosition(m_cursorPositionEnd);
MoveCursor({0, 1});
return true;
}
case Nz::Keyboard::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 Nz::Keyboard::Home:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyHome(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
SetCursorPosition({ 0U, key.control ? 0U : m_cursorPositionEnd.y });
return true;
}
case Nz::Keyboard::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 Nz::Keyboard::Return:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyReturn(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (!m_multiLineEnabled)
break;
if (HasSelection())
EraseSelection();
Write(Nz::String('\n'));
return true;;
}
case Nz::Keyboard::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 Nz::Keyboard::Up:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyUp(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (HasSelection())
SetCursorPosition(m_cursorPositionBegin);
MoveCursor({0, -1});
return true;
}
case Nz::Keyboard::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 Nz::WindowEvent::KeyEvent& /*key*/)
{
}
void AbstractTextAreaWidget::OnMouseButtonPress(int x, int y, Nz::Mouse::Button button)
{
if (button == Nz::Mouse::Left)
{
SetFocus();
Nz::Vector2ui hoveredGlyph = GetHoveredGlyph(float(x), float(y));
// Shift extends selection
if (Nz::Keyboard::IsKeyPressed(Nz::Keyboard::LShift) || Nz::Keyboard::IsKeyPressed(Nz::Keyboard::RShift))
SetSelection(hoveredGlyph, m_selectionCursor);
else
{
SetCursorPosition(hoveredGlyph);
m_selectionCursor = m_cursorPositionBegin;
}
m_isMouseButtonDown = true;
}
}
void AbstractTextAreaWidget::OnMouseButtonRelease(int, int, Nz::Mouse::Button button)
{
if (button == Nz::Mouse::Left)
m_isMouseButtonDown = false;
}
void AbstractTextAreaWidget::OnMouseEnter()
{
if (!Nz::Mouse::IsButtonPressed(Nz::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 (Nz::Unicode::GetCategory(character) == Nz::Unicode::Category_Other_Control || (m_characterFilter && !m_characterFilter(character)))
return;
if (HasSelection())
EraseSelection();
Write(Nz::String::Unicode(character));
}
void AbstractTextAreaWidget::RefreshCursor()
{
if (m_readOnly)
return;
const Nz::AbstractTextDrawer& textDrawer = GetTextDrawer();
auto GetGlyph = [&](const Nz::Vector2ui& glyphPosition, std::size_t* glyphIndex) -> const Nz::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;
};
// Move text so that cursor is always visible
const auto* lastGlyph = GetGlyph(m_cursorPositionEnd, nullptr);
float glyphPos = (lastGlyph) ? lastGlyph->bounds.x : 0.f;
float glyphWidth = (lastGlyph) ? lastGlyph->bounds.width : 0.f;
auto& node = m_textEntity->GetComponent<Ndk::NodeComponent>();
float textPosition = node.GetPosition(Nz::CoordSys_Local).x - paddingWidth;
float cursorPosition = glyphPos + textPosition;
float width = GetWidth();
if (width <= textDrawer.GetBounds().width)
{
if (cursorPosition + glyphWidth > width)
node.Move(width - cursorPosition - glyphWidth, 0.f);
else if (cursorPosition - glyphWidth < 0.f)
node.Move(-cursorPosition + glyphWidth, 0.f);
}
else
node.Move(-textPosition, 0.f); // Reset text position if we have enough room to show everything
// Show cursor/selection
std::size_t selectionLineCount = m_cursorPositionEnd.y - m_cursorPositionBegin.y + 1;
std::size_t oldSpriteCount = m_cursorSprites.size();
if (m_cursorSprites.size() != selectionLineCount)
{
m_cursorSprites.resize(m_cursorPositionEnd.y - m_cursorPositionBegin.y + 1);
for (std::size_t i = oldSpriteCount; i < m_cursorSprites.size(); ++i)
{
m_cursorSprites[i] = Nz::Sprite::New();
m_cursorSprites[i]->SetMaterial(Nz::Material::New("Translucent2D"));
}
}
GraphicsComponent& gfxComponent = m_cursorEntity->GetComponent<GraphicsComponent>();
gfxComponent.Clear();
for (unsigned int i = m_cursorPositionBegin.y; i <= m_cursorPositionEnd.y; ++i)
{
const auto& lineInfo = textDrawer.GetLine(i);
Nz::SpriteRef& cursorSprite = m_cursorSprites[i - m_cursorPositionBegin.y];
if (i == m_cursorPositionBegin.y || i == m_cursorPositionEnd.y)
{
auto GetGlyphPos = [&](const Nz::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);
cursorSprite->SetColor((m_cursorPositionBegin == m_cursorPositionEnd) ? Nz::Color::Black : Nz::Color(0, 0, 0, 50));
cursorSprite->SetSize(spriteSize, lineInfo.bounds.height);
gfxComponent.Attach(cursorSprite, Nz::Matrix4f::Translate({ beginX, lineInfo.bounds.y, 0.f }));
}
else
{
cursorSprite->SetColor(Nz::Color(0, 0, 0, 50));
cursorSprite->SetSize(lineInfo.bounds.width, lineInfo.bounds.height);
gfxComponent.Attach(cursorSprite, Nz::Matrix4f::Translate({ 0.f, lineInfo.bounds.y, 0.f }));
}
}
}
void AbstractTextAreaWidget::UpdateTextSprite()
{
m_textSprite->Update(GetTextDrawer());
SetPreferredSize(Nz::Vector2f(m_textSprite->GetBoundingVolume().obb.localBox.GetLengths()));
}
}

View File

@ -0,0 +1,156 @@
// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequisites.hpp
#include <NDK/Widgets/RichTextAreaWidget.hpp>
namespace Ndk
{
RichTextAreaWidget::RichTextAreaWidget(BaseWidget* parent) :
AbstractTextAreaWidget(parent)
{
Layout();
}
void RichTextAreaWidget::AppendText(const Nz::String& text)
{
//m_text += text;
switch (m_echoMode)
{
case EchoMode_Normal:
m_drawer.AppendText(text);
break;
case EchoMode_Password:
m_drawer.AppendText(Nz::String(text.GetLength(), '*'));
break;
case EchoMode_PasswordExceptLast:
{
/*m_drawer.Clear();
std::size_t textLength = m_text.GetLength();
if (textLength >= 2)
{
std::size_t lastCharacterPosition = m_text.GetCharacterPosition(textLength - 2);
if (lastCharacterPosition != Nz::String::npos)
m_drawer.AppendText(Nz::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);
if (firstBlock == lastBlock)
{
const Nz::String& blockText = m_drawer.GetBlockText(firstBlock);
std::size_t blockFirstGlyph = m_drawer.GetBlockFirstGlyphIndex(firstBlock);
Nz::String newText;
if (firstGlyph > blockFirstGlyph)
{
std::size_t characterPosition = blockText.GetCharacterPosition(firstGlyph - blockFirstGlyph - 1);
NazaraAssert(characterPosition != Nz::String::npos, "Invalid character position");
newText.Append(blockText.SubString(0, characterPosition));
}
if (lastGlyph < textLength)
{
std::size_t characterPosition = blockText.GetCharacterPosition(lastGlyph - blockFirstGlyph);
NazaraAssert(characterPosition != Nz::String::npos, "Invalid character position");
newText.Append(blockText.SubString(characterPosition));
}
m_drawer.SetBlockText(firstBlock, newText);
}
else
{
// More complicated algorithm, yay
}
UpdateDisplayText();
}
void RichTextAreaWidget::Write(const Nz::String& text, std::size_t glyphPosition)
{
auto block = m_drawer.GetBlock(m_drawer.FindBlock(glyphPosition));
std::size_t firstGlyph = block.GetFirstGlyphIndex();
assert(glyphPosition >= firstGlyph);
Nz::String blockText = block.GetText();
std::size_t characterPosition = blockText.GetCharacterPosition(glyphPosition - firstGlyph);
blockText.Insert(characterPosition, text);
block.SetText(blockText);
SetCursorPosition(glyphPosition + text.GetLength());
UpdateDisplayText();
}
Nz::AbstractTextDrawer& RichTextAreaWidget::GetTextDrawer()
{
return m_drawer;
}
const Nz::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(Nz::String(m_text.GetLength(), '*'));
break;
}*/
UpdateTextSprite();
SetCursorPosition(m_cursorPositionBegin); //< Refresh cursor position (prevent it from being outside of the text)
}
}

View File

@ -10,46 +10,14 @@
namespace Ndk
{
namespace
{
constexpr float paddingWidth = 5.f;
constexpr float paddingHeight = 3.f;
}
TextAreaWidget::TextAreaWidget(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)
AbstractTextAreaWidget(parent)
{
m_textSprite = Nz::TextSprite::New();
m_textEntity = CreateEntity();
m_textEntity->AddComponent<GraphicsComponent>().Attach(m_textSprite);
auto& textNode = m_textEntity->AddComponent<NodeComponent>();
textNode.SetParent(this);
textNode.SetPosition(paddingWidth, paddingHeight);
m_cursorEntity = CreateEntity();
m_cursorEntity->AddComponent<GraphicsComponent>();
m_cursorEntity->AddComponent<NodeComponent>().SetParent(m_textEntity);
m_cursorEntity->GetComponent<NodeComponent>();
m_cursorEntity->Enable(false);
SetCursor(Nz::SystemCursor_Text);
SetCharacterSize(GetCharacterSize()); //< Actualize minimum / preferred size
EnableBackground(true);
Layout();
}
void TextAreaWidget::AppendText(const Nz::String& text)
{
m_text += text;
@ -86,21 +54,14 @@ namespace Ndk
OnTextChanged(this, m_text);
}
void TextAreaWidget::EnableLineWrap(bool enable)
void TextAreaWidget::Clear()
{
if (m_isLineWrapEnabled != enable)
{
m_isLineWrapEnabled = enable;
AbstractTextAreaWidget::Clear();
if (enable)
m_drawer.SetMaxLineWidth(GetWidth());
else
m_drawer.SetMaxLineWidth(std::numeric_limits<float>::infinity());
UpdateTextSprite();
}
m_text.Clear();
OnTextChanged(this, m_text);
}
void TextAreaWidget::Erase(std::size_t firstGlyph, std::size_t lastGlyph)
{
if (firstGlyph > lastGlyph)
@ -130,50 +91,6 @@ namespace Ndk
SetText(newText);
}
void TextAreaWidget::EraseSelection()
{
if (!HasSelection())
return;
Erase(GetGlyphIndex(m_cursorPositionBegin), GetGlyphIndex(m_cursorPositionEnd));
}
Nz::Vector2ui TextAreaWidget::GetHoveredGlyph(float x, float y) const
{
auto& textNode = m_textEntity->GetComponent<Ndk::NodeComponent>();
Nz::Vector2f textPosition = Nz::Vector2f(textNode.GetPosition(Nz::CoordSys_Local));
x -= textPosition.x;
y -= textPosition.y;
std::size_t glyphCount = m_drawer.GetGlyphCount();
if (glyphCount > 0)
{
std::size_t lineCount = m_drawer.GetLineCount();
std::size_t line = 0U;
for (; line < lineCount - 1; ++line)
{
Nz::Rectf lineBounds = m_drawer.GetLine(line).bounds;
if (lineBounds.GetMaximum().y > y)
break;
}
std::size_t upperLimit = (line != lineCount - 1) ? m_drawer.GetLine(line + 1).glyphIndex : glyphCount + 1;
std::size_t firstLineGlyph = m_drawer.GetLine(line).glyphIndex;
std::size_t i = firstLineGlyph;
for (; i < upperLimit - 1; ++i)
{
Nz::Rectf bounds = m_drawer.GetGlyph(i).bounds;
if (x < bounds.x + bounds.width * 0.75f)
break;
}
return Nz::Vector2ui(Nz::Vector2<std::size_t>(i - firstLineGlyph, line));
}
return Nz::Vector2ui::Zero();
}
void TextAreaWidget::SetCharacterSize(unsigned int characterSize)
{
m_drawer.SetCharacterSize(characterSize);
@ -198,6 +115,7 @@ namespace Ndk
{
if (glyphPosition >= m_drawer.GetGlyphCount())
{
// It's faster to append than to insert in the middle
AppendText(text);
SetCursorPosition(m_drawer.GetGlyphCount());
}
@ -210,452 +128,109 @@ namespace Ndk
}
}
void TextAreaWidget::Layout()
Nz::AbstractTextDrawer& TextAreaWidget::GetTextDrawer()
{
BaseWidget::Layout();
return m_drawer;
}
if (m_isLineWrapEnabled)
const Nz::AbstractTextDrawer& TextAreaWidget::GetTextDrawer() const
{
return m_drawer;
}
void TextAreaWidget::HandleIndentation(bool add)
{
if (add)
Write(Nz::String('\t'));
else
{
m_drawer.SetMaxLineWidth(GetWidth());
UpdateTextSprite();
}
std::size_t currentGlyph = GetGlyphIndex(m_cursorPositionBegin);
RefreshCursor();
}
bool TextAreaWidget::IsFocusable() const
{
return !m_readOnly;
}
void TextAreaWidget::OnFocusLost()
{
m_cursorEntity->Disable();
}
void TextAreaWidget::OnFocusReceived()
{
if (!m_readOnly)
m_cursorEntity->Enable(true);
}
bool TextAreaWidget::OnKeyPressed(const Nz::WindowEvent::KeyEvent& key)
{
switch (key.code)
{
case Nz::Keyboard::Backspace:
if (currentGlyph > 0 && m_text[m_text.GetCharacterPosition(currentGlyph - 1U)] == '\t') // Check if previous glyph is a tab
{
bool ignoreDefaultAction = false;
OnTextAreaKeyBackspace(this, &ignoreDefaultAction);
Erase(currentGlyph - 1U);
std::size_t cursorGlyphBegin = GetGlyphIndex(m_cursorPositionBegin);
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
{
Nz::String newText;
if (cursorGlyphBegin > 1)
newText.Append(m_text.SubString(0, m_text.GetCharacterPosition(cursorGlyphBegin - 1) - 1));
if (cursorGlyphEnd < m_text.GetLength())
newText.Append(m_text.SubString(m_text.GetCharacterPosition(cursorGlyphEnd)));
// Move cursor before setting text (to prevent SetText to move our cursor)
if (m_cursorPositionBegin.x < static_cast<unsigned int>(m_drawer.GetLineGlyphCount(m_cursorPositionBegin.y)))
MoveCursor(-1);
SetText(newText);
}
return true;
}
case Nz::Keyboard::Delete:
{
if (HasSelection())
EraseSelection();
else
Erase(GetGlyphIndex(m_cursorPositionBegin));
return true;
}
case Nz::Keyboard::Down:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyDown(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (HasSelection())
SetCursorPosition(m_cursorPositionEnd);
MoveCursor({0, 1});
return true;
}
case Nz::Keyboard::End:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyEnd(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
std::size_t lineCount = m_drawer.GetLineCount();
if (key.control && lineCount > 0)
SetCursorPosition({ static_cast<unsigned int>(m_drawer.GetLineGlyphCount(lineCount - 1)), static_cast<unsigned int>(lineCount - 1) });
else
SetCursorPosition({ static_cast<unsigned int>(m_drawer.GetLineGlyphCount(m_cursorPositionEnd.y)), m_cursorPositionEnd.y });
return true;
}
case Nz::Keyboard::Home:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyHome(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
SetCursorPosition({ 0U, key.control ? 0U : m_cursorPositionEnd.y });
return true;
}
case Nz::Keyboard::Left:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyLeft(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (HasSelection())
SetCursorPosition(m_cursorPositionBegin);
else if (key.control)
{
std::size_t index = GetGlyphIndex(m_cursorPositionBegin);
if (index == 0)
return true;
std::size_t spaceIndex = m_text.FindLast(' ', index - 2);
std::size_t endlIndex = m_text.FindLast('\n', index - 1);
if ((spaceIndex > endlIndex || endlIndex == Nz::String::npos) && spaceIndex != Nz::String::npos)
SetCursorPosition(spaceIndex + 1);
else if (endlIndex != Nz::String::npos)
{
if (index == endlIndex + 1)
SetCursorPosition(endlIndex);
else
SetCursorPosition(endlIndex + 1);
}
else
SetCursorPosition({ 0U, m_cursorPositionBegin.y });
}
else
MoveCursor(-1);
return true;
}
case Nz::Keyboard::Return:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyReturn(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (!m_multiLineEnabled)
break;
if (HasSelection())
EraseSelection();
Write(Nz::String('\n'));
return true;;
}
case Nz::Keyboard::Right:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyRight(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (HasSelection())
SetCursorPosition(m_cursorPositionEnd);
else if (key.control)
{
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 != Nz::String::npos)
{
if (m_text.GetSize() > spaceIndex)
SetCursorPosition(spaceIndex + 1);
else
SetCursorPosition({ static_cast<unsigned int>(m_drawer.GetLineGlyphCount(m_cursorPositionEnd.y)), m_cursorPositionEnd.y });
}
else if (endlIndex != Nz::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 });
}
else
MoveCursor(1);
return true;
}
case Nz::Keyboard::Up:
{
bool ignoreDefaultAction = false;
OnTextAreaKeyUp(this, &ignoreDefaultAction);
if (ignoreDefaultAction)
return true;
if (HasSelection())
SetCursorPosition(m_cursorPositionBegin);
MoveCursor({0, -1});
return true;
}
case Nz::Keyboard::Tab:
{
if (!m_tabEnabled)
return false;
if (HasSelection())
{
for(unsigned line = m_cursorPositionBegin.y; line <= m_cursorPositionEnd.y; ++line)
{
const Nz::Vector2ui cursorPositionBegin = m_cursorPositionBegin;
const Nz::Vector2ui cursorPositionEnd = m_cursorPositionEnd;
if (key.shift)
{
if (m_drawer.GetLineGlyphCount(line) == 0)
continue;
std::size_t firstGlyph = GetGlyphIndex({ 0U, line });
if (m_text[m_text.GetCharacterPosition(firstGlyph)] == '\t')
{
Erase(firstGlyph);
SetSelection(cursorPositionBegin - (cursorPositionBegin.y == line && cursorPositionBegin.x != 0U ? Nz::Vector2ui { 1U, 0U } : Nz::Vector2ui {}),
cursorPositionEnd - (cursorPositionEnd.y == line && cursorPositionEnd.x != 0U ? Nz::Vector2ui { 1U, 0U } : Nz::Vector2ui {}));
}
}
else
{
Write(Nz::String('\t'), { 0U, line });
SetSelection(cursorPositionBegin + (cursorPositionBegin.y == line && cursorPositionBegin.x != 0U ? Nz::Vector2ui { 1U, 0U } : Nz::Vector2ui {}),
cursorPositionEnd + (cursorPositionEnd.y == line ? Nz::Vector2ui { 1U, 0U } : Nz::Vector2ui {}));
}
}
}
else if (key.shift)
{
std::size_t currentGlyph = GetGlyphIndex(m_cursorPositionBegin);
if (currentGlyph > 0 && m_text[m_text.GetCharacterPosition(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);
}
}
else
Write(Nz::String('\t'));
return true;
}
default:
break;
}
return false;
}
void TextAreaWidget::OnKeyReleased(const Nz::WindowEvent::KeyEvent& /*key*/)
void TextAreaWidget::HandleSelectionIndentation(bool add)
{
}
void TextAreaWidget::OnMouseButtonPress(int x, int y, Nz::Mouse::Button button)
{
if (button == Nz::Mouse::Left)
for (unsigned line = m_cursorPositionBegin.y; line <= m_cursorPositionEnd.y; ++line)
{
SetFocus();
const Nz::Vector2ui cursorPositionBegin = m_cursorPositionBegin;
const Nz::Vector2ui cursorPositionEnd = m_cursorPositionEnd;
Nz::Vector2ui hoveredGlyph = GetHoveredGlyph(float(x), float(y));
// Shift extends selection
if (Nz::Keyboard::IsKeyPressed(Nz::Keyboard::LShift) || Nz::Keyboard::IsKeyPressed(Nz::Keyboard::RShift))
SetSelection(hoveredGlyph, m_selectionCursor);
if (add)
{
Write(Nz::String('\t'), { 0U, line });
SetSelection(cursorPositionBegin + (cursorPositionBegin.y == line && cursorPositionBegin.x != 0U ? Nz::Vector2ui{ 1U, 0U } : Nz::Vector2ui{}),
cursorPositionEnd + (cursorPositionEnd.y == line ? Nz::Vector2ui{ 1U, 0U } : Nz::Vector2ui{}));
}
else
{
SetCursorPosition(hoveredGlyph);
m_selectionCursor = m_cursorPositionBegin;
}
if (m_drawer.GetLineGlyphCount(line) == 0)
continue;
m_isMouseButtonDown = true;
std::size_t firstGlyph = GetGlyphIndex({ 0U, line });
if (m_text[m_text.GetCharacterPosition(firstGlyph)] == '\t')
{
Erase(firstGlyph);
SetSelection(cursorPositionBegin - (cursorPositionBegin.y == line && cursorPositionBegin.x != 0U ? Nz::Vector2ui{ 1U, 0U } : Nz::Vector2ui{}),
cursorPositionEnd - (cursorPositionEnd.y == line && cursorPositionEnd.x != 0U ? Nz::Vector2ui{ 1U, 0U } : Nz::Vector2ui{}));
}
}
}
}
void TextAreaWidget::OnMouseButtonRelease(int, int, Nz::Mouse::Button button)
void TextAreaWidget::HandleWordCursorMove(bool left)
{
if (button == Nz::Mouse::Left)
m_isMouseButtonDown = false;
}
void TextAreaWidget::OnMouseEnter()
{
if (!Nz::Mouse::IsButtonPressed(Nz::Mouse::Left))
m_isMouseButtonDown = false;
}
void TextAreaWidget::OnMouseMoved(int x, int y, int deltaX, int deltaY)
{
if (m_isMouseButtonDown)
SetSelection(m_selectionCursor, GetHoveredGlyph(float(x), float(y)));
}
void TextAreaWidget::OnTextEntered(char32_t character, bool /*repeated*/)
{
if (m_readOnly)
return;
if (Nz::Unicode::GetCategory(character) == Nz::Unicode::Category_Other_Control || (m_characterFilter && !m_characterFilter(character)))
return;
if (HasSelection())
EraseSelection();
Write(Nz::String::Unicode(character));
}
void TextAreaWidget::RefreshCursor()
{
if (m_readOnly)
return;
auto GetGlyph = [&](const Nz::Vector2ui& glyphPosition, std::size_t* glyphIndex) -> const Nz::AbstractTextDrawer::Glyph*
if (left)
{
const auto& lineInfo = m_drawer.GetLine(glyphPosition.y);
std::size_t index = GetGlyphIndex(m_cursorPositionBegin);
if (index == 0)
return;
std::size_t cursorGlyph = GetGlyphIndex({ glyphPosition.x, glyphPosition.y });
if (glyphIndex)
*glyphIndex = cursorGlyph;
std::size_t spaceIndex = m_text.FindLast(' ', index - 2);
std::size_t endlIndex = m_text.FindLast('\n', index - 1);
std::size_t glyphCount = m_drawer.GetGlyphCount();
if (glyphCount > 0 && lineInfo.glyphIndex < cursorGlyph)
if ((spaceIndex > endlIndex || endlIndex == Nz::String::npos) && spaceIndex != Nz::String::npos)
SetCursorPosition(spaceIndex + 1);
else if (endlIndex != Nz::String::npos)
{
const auto& glyph = m_drawer.GetGlyph(std::min(cursorGlyph, glyphCount - 1));
return &glyph;
if (index == endlIndex + 1)
SetCursorPosition(endlIndex);
else
SetCursorPosition(endlIndex + 1);
}
else
return nullptr;
};
// Move text so that cursor is always visible
const auto* lastGlyph = GetGlyph(m_cursorPositionEnd, nullptr);
float glyphPos = (lastGlyph) ? lastGlyph->bounds.x : 0.f;
float glyphWidth = (lastGlyph) ? lastGlyph->bounds.width : 0.f;
auto& node = m_textEntity->GetComponent<Ndk::NodeComponent>();
float textPosition = node.GetPosition(Nz::CoordSys_Local).x - paddingWidth;
float cursorPosition = glyphPos + textPosition;
float width = GetWidth();
if (width <= m_drawer.GetBounds().width)
{
if (cursorPosition + glyphWidth > width)
node.Move(width - cursorPosition - glyphWidth, 0.f);
else if (cursorPosition - glyphWidth < 0.f)
node.Move(-cursorPosition + glyphWidth, 0.f);
SetCursorPosition({ 0U, m_cursorPositionBegin.y });
}
else
node.Move(-textPosition, 0.f); // Reset text position if we have enough room to show everything
// Show cursor/selection
std::size_t selectionLineCount = m_cursorPositionEnd.y - m_cursorPositionBegin.y + 1;
std::size_t oldSpriteCount = m_cursorSprites.size();
if (m_cursorSprites.size() != selectionLineCount)
{
m_cursorSprites.resize(m_cursorPositionEnd.y - m_cursorPositionBegin.y + 1);
for (std::size_t i = oldSpriteCount; i < m_cursorSprites.size(); ++i)
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 != Nz::String::npos)
{
m_cursorSprites[i] = Nz::Sprite::New();
m_cursorSprites[i]->SetMaterial(Nz::Material::New("Translucent2D"));
if (m_text.GetSize() > spaceIndex)
SetCursorPosition(spaceIndex + 1);
else
SetCursorPosition({ static_cast<unsigned int>(m_drawer.GetLineGlyphCount(m_cursorPositionEnd.y)), m_cursorPositionEnd.y });
}
}
float lineHeight = float(m_drawer.GetFont()->GetSizeInfo(m_drawer.GetCharacterSize()).lineHeight);
GraphicsComponent& gfxComponent = m_cursorEntity->GetComponent<GraphicsComponent>();
gfxComponent.Clear();
for (unsigned int i = m_cursorPositionBegin.y; i <= m_cursorPositionEnd.y; ++i)
{
const auto& lineInfo = m_drawer.GetLine(i);
Nz::SpriteRef& cursorSprite = m_cursorSprites[i - m_cursorPositionBegin.y];
if (i == m_cursorPositionBegin.y || i == m_cursorPositionEnd.y)
else if (endlIndex != Nz::String::npos)
{
auto GetGlyphPos = [&](const Nz::Vector2ui& glyphPosition)
{
std::size_t glyphIndex;
const auto* glyph = GetGlyph(glyphPosition, &glyphIndex);
if (glyph)
{
float position = glyph->bounds.x;
if (glyphIndex >= m_drawer.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);
cursorSprite->SetColor((m_cursorPositionBegin == m_cursorPositionEnd) ? Nz::Color::Black : Nz::Color(0, 0, 0, 50));
cursorSprite->SetSize(spriteSize, float(m_drawer.GetFont()->GetSizeInfo(m_drawer.GetCharacterSize()).lineHeight));
gfxComponent.Attach(cursorSprite, Nz::Matrix4f::Translate({ beginX, lineInfo.bounds.y, 0.f }));
if (index == endlIndex)
SetCursorPosition(endlIndex + 1);
else
SetCursorPosition(endlIndex);
}
else
{
cursorSprite->SetColor(Nz::Color(0, 0, 0, 50));
cursorSprite->SetSize(lineInfo.bounds.width, float(m_drawer.GetFont()->GetSizeInfo(m_drawer.GetCharacterSize()).lineHeight));
gfxComponent.Attach(cursorSprite, Nz::Matrix4f::Translate({ 0.f, lineInfo.bounds.y, 0.f }));
}
SetCursorPosition({ static_cast<unsigned int>(m_drawer.GetLineGlyphCount(m_cursorPositionEnd.y)), m_cursorPositionEnd.y });
}
}
@ -677,10 +252,4 @@ namespace Ndk
SetCursorPosition(m_cursorPositionBegin); //< Refresh cursor position (prevent it from being outside of the text)
}
void TextAreaWidget::UpdateTextSprite()
{
m_textSprite->Update(m_drawer);
SetPreferredSize(Nz::Vector2f(m_textSprite->GetBoundingVolume().obb.localBox.GetLengths()));
}
}

View File

@ -54,6 +54,7 @@
#include <Nazara/Utility/MeshData.hpp>
#include <Nazara/Utility/Node.hpp>
#include <Nazara/Utility/PixelFormat.hpp>
#include <Nazara/Utility/RichTextDrawer.hpp>
#include <Nazara/Utility/Sequence.hpp>
#include <Nazara/Utility/SimpleTextDrawer.hpp>
#include <Nazara/Utility/SkeletalMesh.hpp>

View File

@ -27,6 +27,8 @@ namespace Nz
AbstractTextDrawer() = default;
virtual ~AbstractTextDrawer();
virtual void Clear() = 0;
virtual const Recti& GetBounds() const = 0;
virtual Font* GetFont(std::size_t index) const = 0;
virtual std::size_t GetFontCount() const = 0;
@ -35,6 +37,9 @@ namespace Nz
virtual const Line& GetLine(std::size_t index) const = 0;
virtual std::size_t GetLineCount() const = 0;
inline std::size_t GetLineGlyphCount(std::size_t index) const;
virtual float GetMaxLineWidth() const = 0;
virtual void SetMaxLineWidth(float lineWidth) = 0;
struct Glyph
{

View File

@ -26,29 +26,33 @@ namespace Nz
RichTextDrawer(RichTextDrawer&& drawer);
~RichTextDrawer();
BlockRef AppendText(const String& str);
BlockRef AppendText(const String& str, bool forceNewBlock = false);
inline void Clear();
void Clear() override;
inline std::size_t FindBlock(std::size_t glyphIndex) const;
inline unsigned int GetBlockCharacterSize(std::size_t index) const;
inline const Color& GetBlockColor(std::size_t index) const;
inline std::size_t GetBlockCount() const;
inline std::size_t GetBlockFirstGlyphIndex(std::size_t index) const;
inline const FontRef& GetBlockFont(std::size_t index) const;
inline TextStyleFlags GetBlockStyle(std::size_t index) const;
inline const String& GetBlockText(std::size_t index) const;
inline BlockRef GetBlock(std::size_t index);
const Recti& GetBounds() const override;
inline unsigned int GetDefaultCharacterSize() const;
inline const Color& GetDefaultColor() const;
inline const FontRef& GetDefaultFont() const;
inline TextStyleFlags GetDefaultStyle() const;
const Recti& GetBounds() const override;
Font* GetFont(std::size_t index) const override;
std::size_t GetFontCount() const override;
const Glyph& GetGlyph(std::size_t index) const override;
std::size_t GetGlyphCount() const override;
const Line& GetLine(std::size_t index) const override;
std::size_t GetLineCount() const override;
float GetMaxLineWidth() const override;
void MergeBlocks();
@ -65,9 +69,13 @@ namespace Nz
inline void SetDefaultFont(const FontRef& font);
inline void SetDefaultStyle(TextStyleFlags style);
void SetMaxLineWidth(float lineWidth) override;
RichTextDrawer& operator=(const RichTextDrawer& drawer);
RichTextDrawer& operator=(RichTextDrawer&& drawer);
static constexpr std::size_t InvalidBlockIndex = std::numeric_limits<std::size_t>::max();
//static RichTextDrawer Draw(const String& str, unsigned int characterSize, TextStyleFlags style = TextStyle_Regular, const Color& color = Color::White);
//static RichTextDrawer Draw(Font* font, const String& str, unsigned int characterSize, TextStyleFlags style = TextStyle_Regular, const Color& color = Color::White);
@ -94,6 +102,7 @@ namespace Nz
struct Block
{
std::size_t fontIndex;
std::size_t glyphIndex;
Color color;
String text;
TextStyleFlags style;
@ -123,6 +132,7 @@ namespace Nz
mutable Recti m_bounds;
mutable Vector2ui m_drawPos;
mutable bool m_glyphUpdated;
float m_maxLineWidth;
unsigned int m_defaultCharacterSize;
};
@ -137,6 +147,7 @@ namespace Nz
inline unsigned int GetCharacterSize() const;
inline Color GetColor() const;
inline std::size_t GetFirstGlyphIndex() const;
inline const FontRef& GetFont() const;
inline TextStyleFlags GetStyle() const;
inline const String& GetText() const;

View File

@ -7,13 +7,38 @@
namespace Nz
{
inline void RichTextDrawer::Clear()
inline std::size_t RichTextDrawer::FindBlock(std::size_t glyphIndex) const
{
m_fontIndexes.clear();
m_blocks.clear();
m_fonts.clear();
m_glyphs.clear();
ClearGlyphs();
// Binary search
std::size_t count = m_blocks.size();
std::size_t step;
std::size_t i = InvalidBlockIndex;
std::size_t first = 0;
std::size_t last = count;
while (count > 0)
{
i = first;
step = count / 2;
i += step;
if (m_blocks[i].glyphIndex < glyphIndex)
{
first = i + 1;
count -= step + 1;
}
else
count = step;
}
return i;
}
inline auto RichTextDrawer::GetBlock(std::size_t index) -> BlockRef
{
NazaraAssert(index < m_blocks.size(), "Invalid block index");
return BlockRef(*this, index);
}
inline unsigned int RichTextDrawer::GetBlockCharacterSize(std::size_t index) const
@ -33,6 +58,12 @@ namespace Nz
return m_blocks.size();
}
inline std::size_t RichTextDrawer::GetBlockFirstGlyphIndex(std::size_t index) const
{
NazaraAssert(index < m_blocks.size(), "Invalid block index");
return m_blocks[index].glyphIndex;
}
inline const FontRef& RichTextDrawer::GetBlockFont(std::size_t index) const
{
NazaraAssert(index < m_blocks.size(), "Invalid block index");
@ -204,8 +235,19 @@ namespace Nz
inline void RichTextDrawer::SetBlockText(std::size_t index, const String& str)
{
NazaraAssert(index < m_blocks.size(), "Invalid block index");
std::size_t previousLength = m_blocks[index].text.GetLength();
m_blocks[index].text = str;
std::size_t newLength = m_blocks[index].text.GetLength();
if (newLength != previousLength)
{
std::size_t delta = newLength - previousLength; //< Underflow allowed
for (std::size_t i = index + 1; i < m_blocks.size(); ++i)
m_blocks[i].glyphIndex += delta;
}
InvalidateGlyphs();
}
@ -291,6 +333,17 @@ namespace Nz
return m_drawer.GetBlockStyle(m_blockIndex);
}
/*!
* Returns the first glyph index at which starts the referenced block
* \return The first glyph index concerned by this block
*
* \see GetText
*/
inline std::size_t RichTextDrawer::BlockRef::GetFirstGlyphIndex() const
{
return m_drawer.GetBlockFirstGlyphIndex(m_blockIndex);
}
/*!
* Returns the text of the referenced block
* \return The referenced block text

View File

@ -26,7 +26,7 @@ namespace Nz
void AppendText(const String& str);
void Clear();
void Clear() override;
const Recti& GetBounds() const override;
unsigned int GetCharacterSize() const;

View File

@ -13,7 +13,7 @@ namespace Nz
m_defaultColor(Color::White),
//m_outlineColor(Color::Black),
m_defaultStyle(TextStyle_Regular),
m_glyphUpdated(true),
m_glyphUpdated(false),
//m_maxLineWidth(std::numeric_limits<float>::infinity()),
//m_outlineThickness(0.f),
m_defaultCharacterSize(24)
@ -51,7 +51,7 @@ namespace Nz
RichTextDrawer::~RichTextDrawer() = default;
auto RichTextDrawer::AppendText(const String& str) -> BlockRef
auto RichTextDrawer::AppendText(const String& str, bool forceNewBlock) -> BlockRef
{
NazaraAssert(!str.IsEmpty(), "String cannot be empty");
@ -66,13 +66,23 @@ namespace Nz
};
// Check if last block has the same property as default, else create a new block
if (m_blocks.empty() || !HasDefaultProperties(m_blocks.back()))
if (forceNewBlock || m_blocks.empty() || !HasDefaultProperties(m_blocks.back()))
{
std::size_t glyphIndex;
if (!m_blocks.empty())
{
Block& lastBlock = m_blocks.back();
glyphIndex = lastBlock.glyphIndex + lastBlock.text.GetLength();
}
else
glyphIndex = 0;
m_blocks.emplace_back();
Block& newBlock = m_blocks.back();
newBlock.characterSize = m_defaultCharacterSize;
newBlock.color = m_defaultColor;
newBlock.fontIndex = defaultFontIndex;
newBlock.glyphIndex = glyphIndex;
newBlock.style = m_defaultStyle;
newBlock.text = str;
@ -87,6 +97,15 @@ namespace Nz
return BlockRef(*this, m_blocks.size() - 1);
}
void RichTextDrawer::Clear()
{
m_fontIndexes.clear();
m_blocks.clear();
m_fonts.clear();
m_glyphs.clear();
ClearGlyphs();
}
const Recti& RichTextDrawer::GetBounds() const
{
if (!m_glyphUpdated)
@ -140,6 +159,11 @@ namespace Nz
return m_lines.size();
}
float RichTextDrawer::GetMaxLineWidth() const
{
return m_maxLineWidth;
}
void RichTextDrawer::MergeBlocks()
{
if (m_blocks.size() < 2)
@ -180,6 +204,13 @@ namespace Nz
m_blocks.erase(m_blocks.begin() + index);
}
void RichTextDrawer::SetMaxLineWidth(float lineWidth)
{
m_maxLineWidth = lineWidth;
//TODO: Implement max line width
}
RichTextDrawer& RichTextDrawer::operator=(const RichTextDrawer& drawer)
{
DisconnectFontSlots();
@ -472,5 +503,7 @@ namespace Nz
GenerateGlyphs(fontData.font, block.color, block.style, block.characterSize, block.color, 0.f, block.text);
}
}
else
m_lines.emplace_back(Line{ Rectf::Zero(), 0 }); //< Ensure there's always a line
}
}