view.h

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#ifndef __VIEW_H__
#define __VIEW_H__
 
#include <stdint.h>
#include "list.h"
#include "window.h"
#include "scrollpane.h"
#include "icon.h"
 
#define LIST_VIEW_ITEM_HEIGHT   24 //30
#define LIST_VIEW_ITEM_YPADDING 2
 
typedef struct _list_item_ ChListItem;
 
typedef struct _list_view_ {
    ChWidget wid;
    list_t* itemList;
    bool scrollable;
    ChScrollPane* scrollpane;
    int numRows;
    int horizontalRenderY;
    int horizontalRenderX;
    int currentStartIndex;
    int lastNodeIndex;
    int lastNodePosY;
    bool firstItemPlaced;
    ChListItem* selectedItem;
    int contentSizeY;
    int contentSizeX;
} ChListView;
 
typedef struct _list_item_ {
    //Geometry
    int xPos;
    int yPos;
    bool selected;
    int width;
    int height;
    //item string, icon
    ChIcon* icon;
    char* itemText;
    void (*ChListItemAction)(ChListView* lv, _list_item_* li);
} ChListItem;
 
/*
* ChCreateListView -- create a new list view widget
* @param x -- x location
* @param y -- y location
* @param w -- width of the list
* @param h -- height of the list
*/
XE_EXTERN XE_LIB ChListView* ChCreateListView(int x, int y, int w, int h);
 
/*
* ChListViewSetScrollpane -- assigns a scrollpane to given list view
* @param view -- Pointer to list view
* @param pane -- Pointer to scroll pane
*/
XE_EXTERN XE_LIB void ChListViewSetScrollpane(ChListView* view, ChScrollPane* pane);
 
/*
* ChListViewAddItem -- add list item to list view
* @param lv -- Pointer to list view
* @param itemText -- item text
*/
XE_EXTERN XE_LIB ChListItem* ChListViewAddItem(ChWindow* win, ChListView* lv, char* itemText);
 
/*
* ChListViewSetListItemIcon -- sets icon for list items
* @param li -- Pointer to list item
* @param icon -- Pointer to icon structure
*/
XE_EXTERN XE_LIB void ChListViewSetListItemIcon(ChListItem* li, ChIcon* icon);
 
/*
* ChListViewClear -- clears all list view items
* @param lv -- Pointer to list view
*/
XE_EXTERN XE_LIB void ChListViewClear(ChListView* lv);
 
/*
* ChListViewRepaint -- repaint the entire list view
* @param win -- Pointer to main window
* @param lv -- Pointer to list view
*/
XE_EXTERN XE_LIB void ChListViewRepaint(ChWindow* win, ChListView* lv);
 
/*
* ChListViewGetSelectedItem -- returns the current selected item
* @param lv -- Pointer to ChListView
*/
XE_EXTERN XE_LIB ChListItem* ChListViewGetSelectedItem(ChListView* lv);
 
#endif