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89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
#pragma once
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#include "PascalStr.h"
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#include "PLWidgets.h"
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#include "Vec2i.h"
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struct DrawSurface;
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namespace PortabilityLayer
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{
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class EditboxWidget final : public WidgetSpec<EditboxWidget>
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{
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public:
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EditboxWidget(const WidgetBasicState &state);
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~EditboxWidget();
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bool Init(const WidgetBasicState &state, const void *additionalData) override;
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void DrawControl(DrawSurface *surface) override;
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void SetString(const PLPasStr &str) override;
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PLPasStr GetString() const override;
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void GainFocus() override;
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void LoseFocus() override;
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WidgetHandleState_t ProcessEvent(const TimeTaggedVOSEvent &evt) override;
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Rect GetExpandedRect() const override;
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bool HandlesTickEvents() const;
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void SetSelection(size_t startChar, size_t endChar);
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void SetMultiLine(bool isMultiLine);
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private:
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static const unsigned int kCaratBlinkRate = 20;
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enum CaratSelectionAnchor
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{
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CaratSelectionAnchor_Start,
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CaratSelectionAnchor_End
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};
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void OnTick() override;
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void Redraw();
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void HandleCharacter(uint8_t keyChar, const uint32_t numRepeatsRequested);
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void HandleBackspace(const uint32_t numRepeatsRequested);
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void HandleForwardDelete(const uint32_t numRepeatsRequested);
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void HandleUpArrow(const uint32_t numRepeatsRequested, bool shiftHeld);
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void HandleDownArrow(const uint32_t numRepeatsRequested, bool shiftHeld);
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void HandleLeftArrow(const uint32_t numRepeatsRequested, bool shiftHeld);
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void HandleRightArrow(const uint32_t numRepeatsRequested, bool shiftHeld);
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size_t FindVerticalMovementCaratPos(const Vec2i &desiredPos, bool &isOutOfRange) const;
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void HandleKeyMoveCarat(size_t newPos, bool shiftHeld);
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WidgetHandleState_t HandleDragSelection(const TimeTaggedVOSEvent &evt);
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void DrawSelection(DrawSurface *surface, const Vec2i &basePoint, PortabilityLayer::RenderedFont *font) const;
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Vec2i ResolveCaratPos(const Vec2i &basePoint, PortabilityLayer::RenderedFont *rfont) const;
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Vec2i ResolveBasePoint() const;
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size_t ResolveCaratChar() const;
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PortabilityLayer::FontFamily *GetFontFamily() const;
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PortabilityLayer::RenderedFont *GetRenderedFont() const;
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uint8_t *m_chars;
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size_t m_capacity;
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size_t m_length;
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size_t m_selStartChar;
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size_t m_selEndChar;
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CaratSelectionAnchor m_caratSelectionAnchor;
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Vec2i m_caratScrollPosition;
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bool m_caratScrollLocked;
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bool m_hasFocus;
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bool m_isMultiLine;
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bool m_isDraggingSelection;
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size_t m_dragSelectionStartChar;
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uint16_t m_caratTimer;
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};
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}
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