/** @file
 * Header file for internal routines.
 *
 * @author anlzhao
 * @author mandy.wu 2010/06/02
 * @version 0.1
 */
#ifndef _WINDEV_H
#define  _WINDEV_H

#include "gui_eng/stddefs.h"
#include "gui_eng/device_gdi.h"

/* Background Modes */
#define TRANSPARENT					(1)
#define OPAQUE						(2)
#define DEFAULT_PEN_WIDTH			(1)

/* Flags for status of control. */
typedef enum {
	PAINT_PAINTED			= 0x00000001,		/* WM_PAINT msg has been processed*/
	PAINT_NEEDSPAINT		= 0x00000002, 		/* WM_PAINT seen, paint when can*/
	PAINT_NOT_REQUIRED		= 0x00000004,		/* WM_PAINT not required */
} GENG_ControlStatus_e; //paint_opt_t;

extern RegionProcs_t region_procs;
extern UINT32 g_dVirtualWinWidth;
extern UINT32 g_dVirtualWinHeight;

/**
 * Get OSD plane size.
 *
 * @param pwWinWidth		OSD plane width.
 * @param pwWinWidth		OSD plane height.
 * @return GDL_SUCCESS if succeed, error codes of GDL_FAILURE otherwise.
 */
INT32 GDL_GetOsdPlaneSize(UINT16 *pwPlaneWidth, UINT16 *pwPlaneHeight);

/**
 * Initialize GUI engine and OSD.
 *
 * @param dWinWidth		Window width.
 * @param dWinHeight	Window height.
 * @return GDL_SUCCESS if succeed, error codes of GDL_FAILURE otherwise.
 */
INT32 GDL_Open(UINT32 dWinWidth, UINT32 dWinHeight);

/**
 * Uninitialize OSD.
 *
 * @return GDL_SUCCESS if succeed, error codes of GDL_FAILURE otherwise.
 */
INT32 GDL_Close(void);

/**
 * Open a screen.
 *
 * @param dWinWidth		Window width.
 * @param dWinHeight	Window height.
 * @return SUCCESS if succeed, FAILURE otherwise.
 */
INT32 DEV_OpenScreen(UINT32 dWinWidth, UINT32 dWinHeight, BOOL bBmpCmpsd);

/**
 * Close a screen.
 */
INT32 DEV_CloseScreen(void);

/**
 * Resize UI from the original size to the target size.
 *
 * @param wWidth		The original width of UI.
 * @param wHeight		The original height of UI.
 * @param wTargetWidth	The desired width of UI to be scaled.
 * @param wTargetHeight	The desired height of UI to be scaled.
 * @return SUCCESS if succeed, FAILURE otherwise.
 */
INT32 DEV_ResizeUI(OSD_Layer_t osd_layer, UINT16 wWidth, UINT16 wHeight, UINT16 wTargetWidth, UINT16 wTargetHeight);


/**
 * Get a new valid region handle for region creation.
 *
 * @param pRegionHandle	Return a valid region handle.
 * @return SUCCESS if succeed, FAILURE otherwise.
 */
INT32 DEV_NewRegionHandle(RegionHandle_t *pRegionHandle);

/**
 * Create the region.
 *
 * @param pRegionInfo    Pointer of region_info which is generated by tool.
 * @param dRegionIndex   region index.
 * @param pRegionHandle  Return the region handle of the specific region.
 * @return SUCCESS if succeed, FAILURE otherwise.
 */
INT32 DEV_CreateRegion(RegionInfo_t *pRegionInfo, UINT32 dRegionIndex, RegionHandle_t *pRegionHandle);

/**
 * Destroys the region.
 *
 * @param stRegionHandle  Region handle.
 * @return					SUCCESS or FAILURE.
 */
INT32 DEV_DestroyRegion(RegionHandle_t stRegionHandle);

/**
 * Set the region transparency.
 *
 * @param stRegionHandle		Handle to the region.
 * @param bTransValue			The transparency value to be set to the region.
 * @param bRegionBlendEnable	Wether to enable the OSD region blend mode.
 * @return					SUCCESS or FAILURE.
 */
INT32 DEV_SetTransLevel(RegionHandle_t stRegionHandle, UINT8 bTransValue, BOOLEAN bRegionBlendEnable);


/**
 * Set region palette.
 *
 * @param stRegionHandle  Handle to the region.
 * @param bFirst          First palette entry to set.
 * @param wCount          Number of palette entries to set.
 * @param pPal            New palette etnries (array of size @param count).
 * @return 					SUCCESS or FAILURE.
 */
INT32 DEV_SetPal(RegionHandle_t stRegionHandle, UINT8 bFirst, UINT16 wCount, const PALENTRY *pPal);


/**
 * Move the region to the given x and y position.
 *
 * @param stRegionHandle  Handle to the region.
 * @param swXPos          New x position of the region.
 * @param swYPos          New y position of the region.
 * @return 					SUCCESS or FAILURE.
 */
INT32 DEV_MoveRegion(RegionHandle_t stRegionHandle, INT16 swXPos, INT16 swYPos);

/**
 * Returns the region handle index form the given region_info array with the specific region_index.
 *
 * @param pRegionInfo	Virtual region id.
 * @param sdRegionIndex Region index.
 * @return			INVALID_REGION_HANDLE on failure. Valid region handle on success.
 */
RegionHandle_t DEV_GetRegionHandle(RegionInfo_t *pRegionInfo, INT32 sdRegionIndex);

/**
 * Get the coordinates of the region
 *
 * @param stRegionHandle  Handle to the region.
 * @param pRect           Pointer to rectangle which return the coordinates.
 * @return					SUCCESS or FAILURE.
 */
INT32 DEV_GetRegionCoords(RegionHandle_t stRegionHandle, RECT *pRect);

/**
 * Set activated regions.
 *
 * @param wRegionsNeeded  Regions required.
 * @return					SUCCESS or FAILURE.
 */
INT32 DEV_SetRegions(UINT16 wRegionsNeeded);

/**
 * Gets the current active regions
 *
 * @param pActiveRegions  The actived regions returned.
 * @return					SUCCESS or FAILURE.
 */
INT32 DEV_GetActiveRegions(UINT32 *pActiveRegions);

/**
 * Gets the bitmap data.
 *
 * @param stRegionHandle  Region handle.
 * @param swIconId        Icon identifier.
 * @param pImgData        Pointer to the image data.
 * @return SUCCESS or FAILURE.
 */
INT32 DEV_GetBmpData (RegionHandle_t stRegionHandle, INT16 swIconId, IMAGEHDR *pImgData);

/**
 * SetOSDLayer.
 *
 * @param dRegionHandle  Region handle.
 * @param layer         OSD  Layer .
 * @return SUCCESS or FAILURE.
 */
INT32 DEV_SetOSDLayer(UINT32 dRegionHandle, OSD_Layer_t layer);
INT32 DEV_GetOSDLayer(UINT32 dRegionHandle);

/* devlist.c*/
void LIST_add(PLISTHEAD pHead, PLIST pItem);
void LIST_Insert( PLISTHEAD pHead, PLIST pItem);
void LIST_remove(PLISTHEAD pHead, PLIST pItem);

#define ITEM_OFFSET(type, field)	((long)&(((type *)0)->field))
#define LIST_item_alloc(size)		malloc((size))
#define LIST_item_new(type)			((type *)LIST_item_alloc(sizeof(type)))
#define LIST_item_free(ptr)			free((void *)ptr)
/* return base item address from list ptr*/
#define GdItemAddr(p, type, list)	((type*)((long)p-ITEM_OFFSET(type,list)))

#endif