45 lines
1.9 KiB
C
45 lines
1.9 KiB
C
// listHelp.h -- Public API for the shared list/dropdown helper library
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//
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// Declares dropdown arrow drawing, item length scanning, keyboard
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// navigation, and popup list painting shared across widget DXEs
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// (ListBox, Dropdown, ComboBox, ListView, TreeView).
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#ifndef LIST_HELP_H
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#define LIST_HELP_H
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#include "../core/dvxWidgetPlugin.h"
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#define DROPDOWN_BTN_WIDTH 16
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#define DROPDOWN_MAX_VISIBLE 8
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// ============================================================
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// Dropdown arrow glyph
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// ============================================================
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void widgetDrawDropdownArrow(DisplayT *d, const BlitOpsT *ops, int32_t centerX, int32_t centerY, uint32_t color);
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// ============================================================
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// Item measurement
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// ============================================================
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int32_t widgetMaxItemLen(const char **items, int32_t count);
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// ============================================================
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// Keyboard navigation (Up/Down/Home/End/PgUp/PgDn)
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// ============================================================
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int32_t widgetNavigateIndex(int32_t key, int32_t current, int32_t count, int32_t pageSize);
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// ============================================================
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// Popup rect calculation
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// ============================================================
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void widgetDropdownPopupRect(WidgetT *w, const BitmapFontT *font, int32_t contentH, int32_t itemCount, int32_t *popX, int32_t *popY, int32_t *popW, int32_t *popH);
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// ============================================================
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// Popup list painting
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// ============================================================
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void widgetPaintPopupList(DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors, int32_t popX, int32_t popY, int32_t popW, int32_t popH, const char **items, int32_t itemCount, int32_t hoverIdx, int32_t scrollPos);
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#endif // LIST_HELP_H
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