Label.h

#pragma once
 
#include "StaticControl.h"
 
namespace sw
{
    enum class TextTrimming {
        None,         // 不处理
        EndEllipsis,  // 按字符截断并显示“...”
        WordEllipsis, // 按单词截断并显示“...”
    };
 
    class Label : public StaticControl
    {
    private:
        Size _textSize;
 
        bool _autoSize = true;
 
    public:
        const Property<sw::HorizontalAlignment> HorizontalContentAlignment;
 
        const Property<sw::VerticalAlignment> VerticalContentAlignment;
 
        const Property<sw::TextTrimming> TextTrimming;
 
        const Property<bool> AutoWrap;
 
        const Property<bool> AutoSize;
 
    public:
        Label();
 
    protected:
        virtual bool OnSize(const Size &newClientSize) override;
 
        virtual void OnTextChanged() override;
 
        virtual void FontChanged(HFONT hfont) override;
 
        virtual Size MeasureOverride(const Size &availableSize) override;
 
    private:
        void _UpdateTextSize();
 
        void _ResizeToTextSize();
 
        void _UpdateLayoutFlags();
 
        sw::HorizontalAlignment _GetHorzContentAlignment();
 
        void _SetHorzContentAlignment(sw::HorizontalAlignment value);
 
        sw::VerticalAlignment _GetVertContentAlignment();
 
        void _SetVertContentAlignment(sw::VerticalAlignment value);
 
        sw::TextTrimming _GetTextTrimming();
 
        void _SetTextTrimming(sw::TextTrimming value);
    };
}