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69 lines
1.7 KiB
69 lines
1.7 KiB
#pragma once |
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#include <cstdint> |
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#include "DiabloUI/ui_item.h" |
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#include "engine/clx_sprite.hpp" |
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#include "utils/sdl_geometry.h" |
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namespace devilution { |
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extern OptionalOwnedClxSpriteList ArtScrollBarBackground; |
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extern OptionalOwnedClxSpriteList ArtScrollBarThumb; |
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extern OptionalOwnedClxSpriteList ArtScrollBarArrow; |
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extern Uint16 ScrollBarWidth; |
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extern uint16_t ScrollBarArrowFrame_UP_ACTIVE; |
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extern uint16_t ScrollBarArrowFrame_UP; |
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extern uint16_t ScrollBarArrowFrame_DOWN_ACTIVE; |
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extern uint16_t ScrollBarArrowFrame_DOWN; |
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inline SDL_Rect UpArrowRect(const UiScrollbar &bar) |
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{ |
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return MakeSdlRect( |
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bar.m_rect.x, |
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bar.m_rect.y, |
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ScrollBarWidth, |
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bar.m_arrow[0].height()); |
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} |
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inline SDL_Rect DownArrowRect(const UiScrollbar &bar) |
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{ |
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return MakeSdlRect( |
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bar.m_rect.x, |
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bar.m_rect.y + bar.m_rect.h - bar.m_arrow[0].height(), |
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ScrollBarWidth, |
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bar.m_arrow[0].height()); |
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} |
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inline Uint16 BarHeight(const UiScrollbar &bar) |
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{ |
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return bar.m_rect.h - 2 * bar.m_arrow[0].height(); |
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} |
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inline SDL_Rect BarRect(const UiScrollbar &bar) |
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{ |
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return MakeSdlRect( |
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bar.m_rect.x, |
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bar.m_rect.y + bar.m_arrow[0].height(), |
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ScrollBarWidth, |
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BarHeight(bar)); |
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} |
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inline SDL_Rect ThumbRect(const UiScrollbar &bar, size_t selectedIndex, size_t numItems) |
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{ |
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constexpr int ThumbOffsetX = 3; |
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const int thumbMaxY = BarHeight(bar) - bar.m_thumb.height(); |
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const int thumbY = static_cast<int>(selectedIndex * thumbMaxY / (numItems - 1)); |
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return MakeSdlRect( |
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bar.m_rect.x + ThumbOffsetX, |
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bar.m_rect.y + bar.m_arrow[0].height() + thumbY, |
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bar.m_rect.w - ThumbOffsetX, |
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bar.m_thumb.height()); |
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} |
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void LoadScrollBar(); |
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void UnloadScrollBar(); |
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} // namespace devilution
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