#include <windows.h>
#include <commctrl.h>
#include <uxtheme.h>

#include "resource.h"
#include "defs.h"

extern HFONT HfNormal;
extern HWND HWnd;
WNDPROC LvPrevProc;
static LRESULT CALLBACK LvProc(HWND, UINT, WPARAM, LPARAM);

HWND
LvCreate(HMENU hMenu)
{
	HWND hLv;

	hLv = CreateWindowEx(
		WS_EX_CLIENTEDGE,
		WC_LISTVIEW,
		TEXT(""),
		WS_CHILD|WS_VISIBLE|WS_VSCROLL|WS_TABSTOP
		|LVS_REPORT|LVS_NOSORTHEADER,
		0, 0, 0, 0,
		HWnd, hMenu, GetModuleHandle(NULL), NULL
	);

	LvPrevProc = (WNDPROC)SetWindowLongPtr(hLv,
		GWLP_WNDPROC, (LONG_PTR)LvProc);

	ListView_SetExtendedListViewStyle(hLv, LVS_EX_FULLROWSELECT);

	SendMessage(hLv, WM_SETFONT,
		(WPARAM)HfNormal, MAKELPARAM(FALSE, 0));

	return hLv;
}

LRESULT CALLBACK
LvProc(HWND hLv, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch (uMsg) {
	case WM_NOTIFY:
		switch (((LPNMHDR)lParam)->code) {
		case HDN_ENDTRACK:
			UpdateLayout();
			return TRUE;
		}
		break;
	}

	return CallWindowProc(LvPrevProc, hLv, uMsg, wParam, lParam);
}

void
LvSetTheme(HWND hLv, int bUseTheme)
{
	ListView_SetExtendedListViewStyleEx(hLv,
		LVS_EX_DOUBLEBUFFER,
		bUseTheme ? LVS_EX_DOUBLEBUFFER : 0);
	SendMessage(hLv, WM_CHANGEUISTATE,
		MAKEWPARAM(bUseTheme ? UIS_SET : UIS_CLEAR,
			UISF_HIDEFOCUS), 0);
	SetWindowTheme(hLv, bUseTheme ? TEXT("Explorer") : NULL, NULL);
}