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/* Copyright 2020 Jaakko Keränen <jaakko.keranen@iki.fi>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#pragma once
#include "scrollwidget.h"
#include "paint.h"
#include <the_Foundation/intset.h>
#include <the_Foundation/ptrarray.h>
iDeclareType(ListWidget)
iBeginDeclareClass(ListItem)
void (*draw) (const iAnyObject *, iPaint *p, iRect rect, const iListWidget *list);
iEndDeclareClass(ListItem)
iDeclareType(ListItem)
struct Impl_ListItem {
iObject object;
iBool isSeparator;
iBool isSelected;
iBool isDraggable;
iBool isDropTarget; /* may drag-and-drop another item on this */
};
iDeclareObjectConstruction(ListItem)
iDeclareWidgetClass(ListWidget)
iDeclareObjectConstruction(ListWidget)
iDeclareType(VisBuf)
enum iScrollMode {
normal_ScrollMode,
disabledAtTopBothDirections_ScrollMode,
disabledAtTopUpwards_ScrollMode,
disabled_ScrollMode,
};
struct Impl_ListWidget {
iWidget widget;
iScrollWidget *scroll;
iSmoothScroll scrollY;
int itemHeight;
iPtrArray items;
size_t hoverItem;
size_t dragItem;
iInt2 dragOrigin; /* offset from mouse to drag item's top-left corner */
int dragHandleWidth;
iClick click;
iIntSet invalidItems;
iVisBuf *visBuf;
enum iScrollMode scrollMode;
iBool noHoverWhileScrolling;
};
void init_ListWidget (iListWidget *);
void setItemHeight_ListWidget (iListWidget *, int itemHeight);
void invalidate_ListWidget (iListWidget *);
void invalidateItem_ListWidget (iListWidget *, size_t index);
void clear_ListWidget (iListWidget *);
void addItem_ListWidget (iListWidget *, iAnyObject *item);
iScrollWidget * scroll_ListWidget (iListWidget *);
int scrollBarWidth_ListWidget (const iListWidget *); /* returns zero if hidden */
int itemHeight_ListWidget (const iListWidget *);
int scrollPos_ListWidget (const iListWidget *);
void setScrollPos_ListWidget (iListWidget *, int pos);
void setScrollMode_ListWidget (iListWidget *, enum iScrollMode mode);
void setDragHandleWidth_ListWidget(iListWidget *, int dragHandleWidth);
void scrollToItem_ListWidget (iListWidget *, size_t index, uint32_t span);
void scrollOffset_ListWidget (iListWidget *, int offset);
void scrollOffsetSpan_ListWidget (iListWidget *, int offset, uint32_t span);
void updateVisible_ListWidget (iListWidget *);
void updateMouseHover_ListWidget (iListWidget *);
void setHoverItem_ListWidget (iListWidget *, size_t index);
void sort_ListWidget (iListWidget *, int (*cmp)(const iListItem **item1, const iListItem **item2));
iAnyObject * item_ListWidget (iListWidget *, size_t index);
iAnyObject * hoverItem_ListWidget (iListWidget *);
size_t numItems_ListWidget (const iListWidget *);
int visCount_ListWidget (const iListWidget *);
size_t itemIndex_ListWidget (const iListWidget *, iInt2 pos);
iRect itemRect_ListWidget (const iListWidget *, size_t index);
const iAnyObject * constItem_ListWidget (const iListWidget *, size_t index);
const iAnyObject * constDragItem_ListWidget (const iListWidget *);
const iAnyObject * constHoverItem_ListWidget (const iListWidget *);
size_t hoverItemIndex_ListWidget (const iListWidget *);
iLocalDef iBool isEmpty_ListWidget(const iListWidget *d) { return numItems_ListWidget(d) == 0; }
iBool isMouseDown_ListWidget (const iListWidget *);
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