gui_table_helpers.h

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#pragma once
 
#include <gui_core/gui_base_types.h>
 
#include <span>
 
namespace tachyon
{
    struct LayoutStyle;
    struct VisualTextStyle;
}
 
namespace tachyon::TableHelpers
{

    struct VirtualRowRange
    {
        int firstVisible = 0;
        int lastVisible  = 0;
    };

    VirtualRowRange ComputeVirtualRowRange(int32_t scrollY,
                                           int32_t viewportH,
                                           int32_t rowHeight,
                                           int     totalRowCount,
                                           int     bufferRows);

    int ComputeColumnInsertionIndex(int32_t                  mouseX,
                                    int                      fromCol,
                                    std::span<const IntRect> headerRects);

}