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Add edit box automatic scrolling

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This commit is contained in:
elasota
2020-07-03 04:00:25 -04:00
parent a2e8d414e8
commit 3dbb231c5a
2 changed files with 111 additions and 40 deletions
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14
PortabilityLayer/PLEditboxWidget.h
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@@ -35,6 +35,7 @@ namespace PortabilityLayer
private:
static const unsigned int kCaratBlinkRate = 20;
static const unsigned int kMouseScrollRate = 20;
enum CaratSelectionAnchor
{
@@ -61,9 +62,11 @@ namespace PortabilityLayer
void DrawSelection(DrawSurface *surface, const Vec2i &basePoint, PortabilityLayer::RenderedFont *font) const;
Vec2i ResolveCaratPos(const Vec2i &basePoint, PortabilityLayer::RenderedFont *rfont) const;
Vec2i ResolveCaratPos(PortabilityLayer::RenderedFont *rfont) const;
Vec2i ResolveBasePoint() const;
size_t ResolveCaratChar() const;
void AdjustScrollToCarat();
void AdjustScrollToTextBounds();
PortabilityLayer::FontFamily *GetFontFamily() const;
PortabilityLayer::RenderedFont *GetRenderedFont() const;
@@ -73,10 +76,12 @@ namespace PortabilityLayer
size_t m_length;
size_t m_selStartChar;
size_t m_selEndChar;
CaratSelectionAnchor m_caratSelectionAnchor;
CaratSelectionAnchor m_caratSelectionAnchor; // Where the carat is attached to the selection range
Vec2i m_caratScrollPosition;
bool m_caratScrollLocked;
Vec2i m_caratScrollPosition; // Ideal position of the carat in the editbox, but not necessarily its actual location (i.e. may be in the middle of a glyph)
bool m_caratScrollLocked; // If true, the vertical position
Vec2i m_scrollOffset;
bool m_hasFocus;
bool m_isMultiLine;
@@ -84,5 +89,6 @@ namespace PortabilityLayer
size_t m_dragSelectionStartChar;
uint16_t m_caratTimer;
uint16_t m_selectionScrollTimer;
};
}