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SDK/TextAreaWidget: Add support for line selection

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This commit is contained in:
Lynix
2018-04-15 02:39:19 +02:00
parent 9f95a6122b
commit 65c6996ccd
4 changed files with 280 additions and 72 deletions
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78
SDK/include/NDK/Widgets/TextAreaWidget.inl
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@@ -8,7 +8,8 @@ namespace Ndk
{
inline void TextAreaWidget::Clear()
{
m_cursorPosition.MakeZero();
m_cursorPositionBegin.MakeZero();
m_cursorPositionEnd.MakeZero();
m_drawer.Clear();
m_text.Clear();
m_textSprite->Update(m_drawer);
@@ -29,7 +30,30 @@ namespace Ndk
inline const Nz::Vector2ui& TextAreaWidget::GetCursorPosition() const
{
return m_cursorPosition;
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
@@ -63,7 +87,12 @@ namespace Ndk
return m_drawer.GetColor();
}
inline bool Ndk::TextAreaWidget::IsMultilineEnabled() const
inline bool TextAreaWidget::HasSelection() const
{
return m_cursorPositionBegin != m_cursorPositionEnd;
}
inline bool TextAreaWidget::IsMultilineEnabled() const
{
return m_multiLineEnabled;
}
@@ -75,7 +104,7 @@ namespace Ndk
inline void TextAreaWidget::MoveCursor(int offset)
{
std::size_t cursorGlyph = GetGlyphIndex(m_cursorPosition);
std::size_t cursorGlyph = GetGlyphIndex(m_cursorPositionBegin);
if (offset >= 0)
SetCursorPosition(cursorGlyph + static_cast<std::size_t>(offset));
else
@@ -104,7 +133,7 @@ namespace Ndk
}
};
Nz::Vector2ui cursorPosition = m_cursorPosition;
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);
@@ -120,22 +149,8 @@ namespace Ndk
{
OnTextAreaCursorMove(this, &glyphIndex);
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);
m_cursorPosition.y = static_cast<unsigned int>(line);
m_cursorPosition.x = static_cast<unsigned int>(glyphIndex - lineInfo.glyphIndex);
m_cursorPositionBegin = GetCursorPosition(glyphIndex);
m_cursorPositionEnd = m_cursorPositionBegin;
RefreshCursor();
}
@@ -146,7 +161,7 @@ namespace Ndk
if (cursorPosition.y >= lineCount)
cursorPosition.y = static_cast<unsigned int>(lineCount - 1);
m_cursorPosition = cursorPosition;
m_cursorPositionBegin = cursorPosition;
const auto& lineInfo = m_drawer.GetLine(cursorPosition.y);
if (cursorPosition.y + 1 < lineCount)
@@ -155,6 +170,8 @@ namespace Ndk
cursorPosition.x = std::min(cursorPosition.x, static_cast<unsigned int>(nextLineInfo.glyphIndex - lineInfo.glyphIndex - 1));
}
m_cursorPositionEnd = m_cursorPositionBegin;
std::size_t glyphIndex = lineInfo.glyphIndex + cursorPosition.x;
OnTextAreaCursorMove(this, &glyphIndex);
@@ -175,6 +192,23 @@ namespace Ndk
m_cursorEntity->Enable(!m_readOnly && HasFocus());
}
inline void TextAreaWidget::SetSelection(Nz::Vector2ui fromPosition, Nz::Vector2ui toPosition)
{
///TODO: Check if position are valid
// 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)
{
m_cursorPositionBegin = fromPosition;
m_cursorPositionEnd = toPosition;
RefreshCursor();
}
}
inline void TextAreaWidget::SetText(const Nz::String& text)
{
m_text = text;