SDK/TextAreaWidget: Add support for line selection
This commit is contained in:
Lynix
parent
9f95a6122b
commit
65c6996ccd
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@ -88,6 +88,7 @@ Nazara Engine:
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- Graphics module now register "White2D" and "WhiteCubemap" textures to the TextureLibrary (respectively a 1x1 texture 2D and a 1x1 texture cubemap)
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- Added AbstractTextDrawer::GetLineGlyphCount, which returns the number of glyph part of the line
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- Fixed Font handling of whitespace glyphs (which were triggering an error)
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- ⚠️ Translucent2D pipeline no longer has depth sorting
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Nazara Development Kit:
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- Added ImageWidget (#139)
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@ -132,6 +133,8 @@ Nazara Development Kit:
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- ⚠️ Rewrote all render queue system, which should be more efficient, take scissor box into account
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- ⚠️ All widgets are now bound to a scissor box when rendering
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- Add DebugComponent (a component able to show aabb/obb/collision mesh)
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- ⚠️ TextAreaWidget now support text selection (WIP)
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- ⚠️ TextAreaWidget::GetHoveredGlyph now returns a two-dimensional position instead of a single glyph position
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# 0.4:
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@ -11,6 +11,7 @@
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#include <Nazara/Utility/SimpleTextDrawer.hpp>
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#include <NDK/BaseWidget.hpp>
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#include <NDK/Widgets/Enums.hpp>
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#include <vector>
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namespace Ndk
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{
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@ -30,15 +31,20 @@ namespace Ndk
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inline void EnableMultiline(bool enable = true);
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void EraseSelection();
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inline unsigned int GetCharacterSize() const;
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inline const Nz::Vector2ui& GetCursorPosition() const;
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inline Nz::Vector2ui GetCursorPosition(std::size_t glyphIndex) const;
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inline const Nz::String& GetDisplayText() const;
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inline EchoMode GetEchoMode() const;
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inline std::size_t GetGlyphIndex(const Nz::Vector2ui& cursorPosition);
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inline const Nz::String& GetText() const;
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inline const Nz::Color& GetTextColor() const;
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std::size_t GetHoveredGlyph(float x, float y) const;
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Nz::Vector2ui GetHoveredGlyph(float x, float y) const;
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inline bool HasSelection() const;
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inline bool IsMultilineEnabled() const;
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inline bool IsReadOnly() const;
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@ -53,6 +59,7 @@ namespace Ndk
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inline void SetCursorPosition(Nz::Vector2ui cursorPosition);
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inline void SetEchoMode(EchoMode echoMode);
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inline void SetReadOnly(bool readOnly = true);
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inline void SetSelection(Nz::Vector2ui fromPosition, Nz::Vector2ui toPosition);
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inline void SetText(const Nz::String& text);
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inline void SetTextColor(const Nz::Color& text);
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@ -64,6 +71,8 @@ namespace Ndk
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NazaraSignal(OnTextAreaCursorMove, const TextAreaWidget* /*textArea*/, std::size_t* /*newCursorPosition*/);
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NazaraSignal(OnTextAreaKeyBackspace, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
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NazaraSignal(OnTextAreaKeyDown, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
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NazaraSignal(OnTextAreaKeyEnd, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
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NazaraSignal(OnTextAreaKeyHome, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
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NazaraSignal(OnTextAreaKeyLeft, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
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NazaraSignal(OnTextAreaKeyReturn, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
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NazaraSignal(OnTextAreaKeyRight, const TextAreaWidget* /*textArea*/, bool* /*ignoreDefaultAction*/);
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@ -79,6 +88,9 @@ namespace Ndk
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bool OnKeyPressed(const Nz::WindowEvent::KeyEvent& key) override;
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void OnKeyReleased(const Nz::WindowEvent::KeyEvent& key) override;
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void OnMouseButtonPress(int /*x*/, int /*y*/, Nz::Mouse::Button button) override;
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void OnMouseButtonRelease(int /*x*/, int /*y*/, Nz::Mouse::Button button) override;
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void OnMouseEnter() override;
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void OnMouseMoved(int x, int y, int deltaX, int deltaY) override;
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void OnTextEntered(char32_t character, bool repeated) override;
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void RefreshCursor();
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@ -88,10 +100,13 @@ namespace Ndk
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EntityHandle m_cursorEntity;
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EntityHandle m_textEntity;
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Nz::SimpleTextDrawer m_drawer;
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Nz::SpriteRef m_cursorSprite;
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Nz::String m_text;
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Nz::TextSpriteRef m_textSprite;
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Nz::Vector2ui m_cursorPosition;
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Nz::Vector2ui m_cursorPositionBegin;
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Nz::Vector2ui m_cursorPositionEnd;
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Nz::Vector2ui m_selectionCursor;
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std::vector<Nz::SpriteRef> m_cursorSprites;
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bool m_isMouseButtonDown;
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bool m_multiLineEnabled;
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bool m_readOnly;
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};
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@ -8,7 +8,8 @@ namespace Ndk
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{
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inline void TextAreaWidget::Clear()
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{
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m_cursorPosition.MakeZero();
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m_cursorPositionBegin.MakeZero();
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m_cursorPositionEnd.MakeZero();
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m_drawer.Clear();
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m_text.Clear();
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m_textSprite->Update(m_drawer);
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@ -29,7 +30,30 @@ namespace Ndk
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inline const Nz::Vector2ui& TextAreaWidget::GetCursorPosition() const
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{
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return m_cursorPosition;
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return m_cursorPositionBegin;
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}
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Nz::Vector2ui TextAreaWidget::GetCursorPosition(std::size_t glyphIndex) const
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{
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glyphIndex = std::min(glyphIndex, m_drawer.GetGlyphCount());
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std::size_t lineCount = m_drawer.GetLineCount();
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std::size_t line = 0U;
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for (std::size_t i = line + 1; i < lineCount; ++i)
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{
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if (m_drawer.GetLine(i).glyphIndex > glyphIndex)
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break;
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line = i;
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}
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const auto& lineInfo = m_drawer.GetLine(line);
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Nz::Vector2ui cursorPos;
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cursorPos.y = static_cast<unsigned int>(line);
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cursorPos.x = static_cast<unsigned int>(glyphIndex - lineInfo.glyphIndex);
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return cursorPos;
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}
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inline const Nz::String& TextAreaWidget::GetDisplayText() const
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@ -63,7 +87,12 @@ namespace Ndk
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return m_drawer.GetColor();
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}
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inline bool Ndk::TextAreaWidget::IsMultilineEnabled() const
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inline bool TextAreaWidget::HasSelection() const
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{
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return m_cursorPositionBegin != m_cursorPositionEnd;
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}
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inline bool TextAreaWidget::IsMultilineEnabled() const
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{
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return m_multiLineEnabled;
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}
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@ -75,7 +104,7 @@ namespace Ndk
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inline void TextAreaWidget::MoveCursor(int offset)
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{
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std::size_t cursorGlyph = GetGlyphIndex(m_cursorPosition);
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std::size_t cursorGlyph = GetGlyphIndex(m_cursorPositionBegin);
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if (offset >= 0)
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SetCursorPosition(cursorGlyph + static_cast<std::size_t>(offset));
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else
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@ -104,7 +133,7 @@ namespace Ndk
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}
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};
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Nz::Vector2ui cursorPosition = m_cursorPosition;
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Nz::Vector2ui cursorPosition = m_cursorPositionBegin;
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cursorPosition.x = ClampOffset(static_cast<unsigned int>(cursorPosition.x), offset.x);
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cursorPosition.y = ClampOffset(static_cast<unsigned int>(cursorPosition.y), offset.y);
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@ -120,22 +149,8 @@ namespace Ndk
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{
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OnTextAreaCursorMove(this, &glyphIndex);
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glyphIndex = std::min(glyphIndex, m_drawer.GetGlyphCount());
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std::size_t lineCount = m_drawer.GetLineCount();
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std::size_t line = 0U;
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for (std::size_t i = line + 1; i < lineCount; ++i)
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{
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if (m_drawer.GetLine(i).glyphIndex > glyphIndex)
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break;
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line = i;
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}
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const auto& lineInfo = m_drawer.GetLine(line);
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m_cursorPosition.y = static_cast<unsigned int>(line);
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m_cursorPosition.x = static_cast<unsigned int>(glyphIndex - lineInfo.glyphIndex);
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m_cursorPositionBegin = GetCursorPosition(glyphIndex);
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m_cursorPositionEnd = m_cursorPositionBegin;
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RefreshCursor();
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}
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@ -146,7 +161,7 @@ namespace Ndk
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if (cursorPosition.y >= lineCount)
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cursorPosition.y = static_cast<unsigned int>(lineCount - 1);
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m_cursorPosition = cursorPosition;
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m_cursorPositionBegin = cursorPosition;
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const auto& lineInfo = m_drawer.GetLine(cursorPosition.y);
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if (cursorPosition.y + 1 < lineCount)
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@ -155,6 +170,8 @@ namespace Ndk
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cursorPosition.x = std::min(cursorPosition.x, static_cast<unsigned int>(nextLineInfo.glyphIndex - lineInfo.glyphIndex - 1));
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}
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m_cursorPositionEnd = m_cursorPositionBegin;
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std::size_t glyphIndex = lineInfo.glyphIndex + cursorPosition.x;
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OnTextAreaCursorMove(this, &glyphIndex);
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@ -175,6 +192,23 @@ namespace Ndk
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m_cursorEntity->Enable(!m_readOnly && HasFocus());
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}
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inline void TextAreaWidget::SetSelection(Nz::Vector2ui fromPosition, Nz::Vector2ui toPosition)
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{
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///TODO: Check if position are valid
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// Ensure begin is before end
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if (toPosition.y < fromPosition.y || (toPosition.y == fromPosition.y && toPosition.x < fromPosition.x))
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std::swap(fromPosition, toPosition);
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if (m_cursorPositionBegin != fromPosition || m_cursorPositionEnd != toPosition)
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{
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m_cursorPositionBegin = fromPosition;
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m_cursorPositionEnd = toPosition;
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RefreshCursor();
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}
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}
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inline void TextAreaWidget::SetText(const Nz::String& text)
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{
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m_text = text;
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@ -12,16 +12,14 @@ namespace Ndk
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TextAreaWidget::TextAreaWidget(BaseWidget* parent) :
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BaseWidget(parent),
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m_echoMode(EchoMode_Normal),
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m_cursorPosition(0U, 0U),
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m_cursorPositionBegin(0U, 0U),
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m_cursorPositionEnd(0U, 0U),
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m_isMouseButtonDown(false),
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m_multiLineEnabled(false),
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m_readOnly(false)
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{
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m_cursorSprite = Nz::Sprite::New();
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m_cursorSprite->SetColor(Nz::Color::Black);
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m_cursorSprite->SetSize(1.f, float(m_drawer.GetFont()->GetSizeInfo(m_drawer.GetCharacterSize()).lineHeight));
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m_cursorEntity = CreateEntity(true);
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m_cursorEntity->AddComponent<GraphicsComponent>().Attach(m_cursorSprite, 10);
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m_cursorEntity->AddComponent<GraphicsComponent>();
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m_cursorEntity->AddComponent<NodeComponent>().SetParent(this);
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m_cursorEntity->Enable(false);
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@ -72,7 +70,29 @@ namespace Ndk
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OnTextChanged(this, m_text);
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}
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std::size_t TextAreaWidget::GetHoveredGlyph(float x, float y) const
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void TextAreaWidget::EraseSelection()
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{
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if (!HasSelection())
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return;
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std::size_t cursorGlyphBegin = GetGlyphIndex(m_cursorPositionBegin);
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std::size_t cursorGlyphEnd = GetGlyphIndex(m_cursorPositionEnd);
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std::size_t textLength = m_text.GetLength();
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if (cursorGlyphBegin > textLength)
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return;
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Nz::String newText;
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if (cursorGlyphBegin > 0)
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newText.Append(m_text.SubString(0, m_text.GetCharacterPosition(cursorGlyphBegin) - 1));
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if (cursorGlyphEnd < textLength)
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newText.Append(m_text.SubString(m_text.GetCharacterPosition(cursorGlyphEnd)));
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SetText(newText);
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}
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Nz::Vector2ui TextAreaWidget::GetHoveredGlyph(float x, float y) const
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{
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std::size_t glyphCount = m_drawer.GetGlyphCount();
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if (glyphCount > 0)
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@ -88,7 +108,8 @@ namespace Ndk
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std::size_t upperLimit = (line != lineCount - 1) ? m_drawer.GetLine(line + 1).glyphIndex : glyphCount + 1;
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std::size_t i = m_drawer.GetLine(line).glyphIndex;
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std::size_t firstLineGlyph = m_drawer.GetLine(line).glyphIndex;
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std::size_t i = firstLineGlyph;
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for (; i < upperLimit - 1; ++i)
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{
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Nz::Rectf bounds = m_drawer.GetGlyph(i).bounds;
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@ -96,10 +117,10 @@ namespace Ndk
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break;
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}
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return i;
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return Nz::Vector2ui(i - firstLineGlyph, line);
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}
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return 0;
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return Nz::Vector2ui::Zero();
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}
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void TextAreaWidget::ResizeToContent()
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@ -109,7 +130,7 @@ namespace Ndk
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void TextAreaWidget::Write(const Nz::String& text)
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{
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std::size_t cursorGlyph = GetGlyphIndex(m_cursorPosition);
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std::size_t cursorGlyph = GetGlyphIndex(m_cursorPositionBegin);
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if (cursorGlyph >= m_drawer.GetGlyphCount())
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{
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@ -156,20 +177,27 @@ namespace Ndk
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{
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case Nz::Keyboard::Delete:
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{
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std::size_t cursorGlyph = GetGlyphIndex(m_cursorPosition);
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if (HasSelection())
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EraseSelection();
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else
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{
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std::size_t cursorGlyphBegin = GetGlyphIndex(m_cursorPositionBegin);
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std::size_t cursorGlyphEnd = GetGlyphIndex(m_cursorPositionEnd);
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std::size_t textLength = m_text.GetLength();
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if (cursorGlyph > textLength)
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if (cursorGlyphBegin > textLength)
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return true;
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Nz::String newText;
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if (cursorGlyph > 0)
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newText.Append(m_text.SubString(0, m_text.GetCharacterPosition(cursorGlyph) - 1));
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if (cursorGlyphBegin > 0)
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newText.Append(m_text.SubString(0, m_text.GetCharacterPosition(cursorGlyphBegin) - 1));
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if (cursorGlyph < textLength)
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newText.Append(m_text.SubString(m_text.GetCharacterPosition(cursorGlyph + 1)));
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if (cursorGlyphEnd < textLength)
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newText.Append(m_text.SubString(m_text.GetCharacterPosition(cursorGlyphEnd + 1)));
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SetText(newText);
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}
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return true;
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}
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@ -181,10 +209,38 @@ namespace Ndk
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if (ignoreDefaultAction)
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return true;
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if (HasSelection())
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SetCursorPosition(m_cursorPositionEnd);
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MoveCursor({0, 1});
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return true;
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}
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case Nz::Keyboard::End:
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{
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bool ignoreDefaultAction = false;
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OnTextAreaKeyEnd(this, &ignoreDefaultAction);
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if (ignoreDefaultAction)
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return true;
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const auto& lineInfo = m_drawer.GetLine(m_cursorPositionEnd.y);
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SetCursorPosition({ m_drawer.GetLineGlyphCount(m_cursorPositionEnd.y), m_cursorPositionEnd.y });
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return true;
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}
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case Nz::Keyboard::Home:
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{
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bool ignoreDefaultAction = false;
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OnTextAreaKeyHome(this, &ignoreDefaultAction);
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if (ignoreDefaultAction)
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return true;
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SetCursorPosition({ 0U, m_cursorPositionEnd.y });
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return true;
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}
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case Nz::Keyboard::Left:
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{
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bool ignoreDefaultAction = false;
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@ -193,7 +249,11 @@ namespace Ndk
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if (ignoreDefaultAction)
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return true;
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if (HasSelection())
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SetCursorPosition(m_cursorPositionBegin);
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else
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MoveCursor(-1);
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return true;
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}
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@ -205,7 +265,11 @@ namespace Ndk
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if (ignoreDefaultAction)
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return true;
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if (HasSelection())
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SetCursorPosition(m_cursorPositionEnd);
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else
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MoveCursor(1);
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return true;
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}
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@ -217,6 +281,9 @@ namespace Ndk
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if (ignoreDefaultAction)
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return true;
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if (HasSelection())
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SetCursorPosition(m_cursorPositionBegin);
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MoveCursor({0, -1});
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return true;
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}
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@ -237,7 +304,39 @@ namespace Ndk
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SetFocus();
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const Padding& padding = GetPadding();
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SetCursorPosition(GetHoveredGlyph(float(x - padding.left), float(y - padding.top)));
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Nz::Vector2ui hoveredGlyph = GetHoveredGlyph(float(x - padding.left), float(y - padding.top));
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// Shift extends selection
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if (Nz::Keyboard::IsKeyPressed(Nz::Keyboard::LShift) || Nz::Keyboard::IsKeyPressed(Nz::Keyboard::RShift))
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SetSelection(hoveredGlyph, m_selectionCursor);
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else
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{
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SetCursorPosition(hoveredGlyph);
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m_selectionCursor = m_cursorPositionBegin;
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}
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m_isMouseButtonDown = true;
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}
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}
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void TextAreaWidget::OnMouseButtonRelease(int, int, Nz::Mouse::Button button)
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{
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if (button == Nz::Mouse::Left)
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m_isMouseButtonDown = false;
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}
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void TextAreaWidget::OnMouseEnter()
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{
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if (!Nz::Mouse::IsButtonPressed(Nz::Mouse::Left))
|
||||
m_isMouseButtonDown = false;
|
||||
}
|
||||
|
||||
void TextAreaWidget::OnMouseMoved(int x, int y, int deltaX, int deltaY)
|
||||
{
|
||||
if (m_isMouseButtonDown)
|
||||
{
|
||||
const Padding& padding = GetPadding();
|
||||
SetSelection(m_selectionCursor, GetHoveredGlyph(float(x - padding.left), float(y - padding.top)));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -253,20 +352,30 @@ namespace Ndk
|
|||
bool ignoreDefaultAction = false;
|
||||
OnTextAreaKeyBackspace(this, &ignoreDefaultAction);
|
||||
|
||||
std::size_t cursorGlyph = GetGlyphIndex(m_cursorPosition);
|
||||
if (ignoreDefaultAction || cursorGlyph == 0)
|
||||
std::size_t cursorGlyphBegin = GetGlyphIndex(m_cursorPositionBegin);
|
||||
std::size_t cursorGlyphEnd = GetGlyphIndex(m_cursorPositionEnd);
|
||||
|
||||
if (ignoreDefaultAction || cursorGlyphEnd == 0)
|
||||
break;
|
||||
|
||||
// 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 (cursorGlyph > 1)
|
||||
newText.Append(m_text.SubString(0, m_text.GetCharacterPosition(cursorGlyph - 1) - 1));
|
||||
if (cursorGlyphBegin > 1)
|
||||
newText.Append(m_text.SubString(0, m_text.GetCharacterPosition(cursorGlyphBegin - 1) - 1));
|
||||
|
||||
if (cursorGlyph < m_text.GetLength())
|
||||
newText.Append(m_text.SubString(m_text.GetCharacterPosition(cursorGlyph)));
|
||||
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)
|
||||
MoveCursor(-1);
|
||||
|
||||
SetText(newText);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
@ -288,6 +397,9 @@ namespace Ndk
|
|||
if (Nz::Unicode::GetCategory(character) == Nz::Unicode::Category_Other_Control)
|
||||
break;
|
||||
|
||||
if (HasSelection())
|
||||
EraseSelection();
|
||||
|
||||
Write(Nz::String::Unicode(character));
|
||||
break;
|
||||
}
|
||||
|
|
@ -299,8 +411,35 @@ namespace Ndk
|
|||
if (m_readOnly)
|
||||
return;
|
||||
|
||||
const auto& lineInfo = m_drawer.GetLine(m_cursorPosition.y);
|
||||
std::size_t cursorGlyph = GetGlyphIndex(m_cursorPosition);
|
||||
m_cursorEntity->GetComponent<NodeComponent>().SetPosition(GetContentOrigin());
|
||||
|
||||
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"));
|
||||
}
|
||||
}
|
||||
|
||||
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)
|
||||
{
|
||||
auto GetGlyphPos = [&](std::size_t localGlyphPos)
|
||||
{
|
||||
std::size_t cursorGlyph = GetGlyphIndex({ localGlyphPos, i });
|
||||
|
||||
std::size_t glyphCount = m_drawer.GetGlyphCount();
|
||||
float position;
|
||||
|
|
@ -314,9 +453,26 @@ namespace Ndk
|
|||
else
|
||||
position = 0.f;
|
||||
|
||||
Nz::Vector2f contentOrigin = GetContentOrigin();
|
||||
return position;
|
||||
};
|
||||
|
||||
m_cursorEntity->GetComponent<NodeComponent>().SetPosition(contentOrigin.x + position, contentOrigin.y + lineInfo.bounds.y);
|
||||
float beginX = (i == m_cursorPositionBegin.y) ? GetGlyphPos(m_cursorPositionBegin.x) : 0.f;
|
||||
float endX = (i == m_cursorPositionEnd.y) ? GetGlyphPos(m_cursorPositionEnd.x) : 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 }));
|
||||
}
|
||||
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 }));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void TextAreaWidget::UpdateDisplayText()
|
||||
|
|
@ -335,6 +491,6 @@ namespace Ndk
|
|||
|
||||
m_textSprite->Update(m_drawer);
|
||||
|
||||
SetCursorPosition(m_cursorPosition); //< Refresh cursor position (prevent it from being outside of the text)
|
||||
SetCursorPosition(m_cursorPositionBegin); //< Refresh cursor position (prevent it from being outside of the text)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue