/* **************************************************************************************
*  Copyright (c) 2004 ZORAN Corporation, All Rights Reserved
*  THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF ZORAN CORPORATION
*
*  File: $Workfile: o_hscroll_text.c $
*
* Description:
* ============
* Project definition of the MSO_HSCROLL_TEXT functions
*
****************************************************************************************/
#include "Config.h"		// Global Configuration - do not remove!

#ifdef DEBUG_UI_TRACE
#undef IFTRACE
#define IFTRACE if (gTraceUI)
#include "Debug\DbgMain.h"
#endif //DEBUG_UI_TRACE

#include "Include\SysDefs.h"
#include <stdio.h>
#include <string.h>
#include "Include\math-macro.h"

#include "GUI\Menu_system\ms_object.h"
#include "gui\menu_system\osd_rendering.h"
#include "gui\menu_system\ms_display.h"
#include "GUI\Menu_system\ms_screen.h"
#include "GUI\Object_class\Hscroll\mso_hscroll_text.h"
#include "GUI\Resource\Bitmap\bitmap.h"
#include "Menu\menu_operation_def.h"
#include "GUI\Object_class\Text\mso_text.h"
#include "Library\Container_misc.h"
#include "GUI\Object_class\Multiline\mso_multiline_text.h"
#ifndef DEBUG_UI_TRACE
#undef dbg_printf(sMsg)
#define dbg_printf(sMsg)
#undef	dbgm_printf(sMsg, mode)
#define dbgm_printf(sMsg, mode)
#endif
#define pObjectHscrollText			((MSO_HSCROLL_TEXT __NEAR*)pThis)
#define pObjectMultilineText			((MSO_MULTILINE_TEXT __NEAR*)&(pObjectHscrollText->moObject))
#define pObjectText					((MSO_TEXT __NEAR*)&(pObjectMultilineText->moObject))

#define pDescriptorHscrollText		((MS_DESCRIPTOR_HSCROLL_TEXT*)(pThis->mpDescriptor))
#define pDescriptorMultilineText		((MS_DESCRIPTOR_MULTILINE_TEXT*)&(pDescriptorHscrollText->moDescriptorMultilineText))
#define pDescriptorText				((MS_DESCRIPTOR_TEXT*)&(pDescriptorMultilineText->moDescriptorText))

static void HscrollReset(MSO_OBJECT __NEAR* pThis)
{
	if(pDescriptorHscrollText->meStartPos == HSCROLL_START_RIGHT)
	{
		pObjectHscrollText->moParam.iStartPixel = (pObjectText->moObject.moArea.mwW - pDescriptorMultilineText->mnPixelLeftRightBorder);
		pObjectHscrollText->moParam.cCurrentState = HSCROLL_STATE_SCROLLING_IN;
	}
	else
	{
		pObjectHscrollText->moParam.iStartPixel = 0;
		pObjectHscrollText->moParam.cCurrentState = HSCROLL_STATE_HOLDING;
		pObjectHscrollText->moParam.mcHoldTimeRemaining = pDescriptorHscrollText->mcHoldTime;
	}

	// End
}

#pragma argsused
MS_OP OHSCROLLTEXT_Operation(MSO_OBJECT __NEAR* pThis, MS_OP MsOp, UINT32 lParam)
{
	switch (MsOp)
	{
		case MS_OP_INIT:
		case MS_OP_ON_DEFROST:
        	case MS_OP_BUILD_TEXT_TABLE:
			pObjectHscrollText->moParam.cCurrentState = HSCROLL_STATE_RESETTING;
			break;

		case MS_OP_TICK:
			if(pObjectMultilineText->moParam.moEntryTable.mcTableEntryCount != 0)
			{
				FORMATED_UNICODE_STRING oFormUniStr;
				switch(pObjectHscrollText->moParam.cCurrentState)
				{
					case HSCROLL_STATE_RESETTING:
						HscrollReset(pThis);
						pObjectMultilineText->moParam.mcCurrentEntry = 0;
						OSDR_GetFormUniStr_ScFormatted((FORMATED_UNICODE_STRING __NEAR*)&oFormUniStr, (UINT32)(pObjectHscrollText->moObject.moParam.moEntryTable.mwEntries[pObjectMultilineText->moParam.mcCurrentEntry]));
						pObjectHscrollText->moParam.miBlockPixelLength = (oFormUniStr.mwPixelWidth + ((pFonts[pDescriptorText->mtFontIndex])->m_cCharPixelSpace));
						break;
					case HSCROLL_STATE_SCROLLING_IN:
						pObjectHscrollText->moParam.iStartPixel -= pDescriptorHscrollText->mcPixelCount;
						if(pObjectHscrollText->moParam.iStartPixel <= 0)
						{
                        				pObjectHscrollText->moParam.iStartPixel = 0;
							pObjectHscrollText->moParam.cCurrentState = HSCROLL_STATE_HOLDING;
							pObjectHscrollText->moParam.mcHoldTimeRemaining = pDescriptorHscrollText->mcHoldTime;
						}
						else
						{
							break;
						}
					case HSCROLL_STATE_HOLDING:
						if(pObjectHscrollText->moParam.mcHoldTimeRemaining-- == 0)
						{
							if((pDescriptorHscrollText->meScrollType & HSCROLL_REMOVE_MASK) == HSCROLL_REMOVE_IMMEDIATE)
							{
								pObjectHscrollText->moParam.cCurrentState = HSCROLL_STATE_SCROLL_DONE;
								break;
							}
							else
							{
								pObjectHscrollText->moParam.cCurrentState = HSCROLL_STATE_SCROLLING_OUT;
							}
						}
						else
						{
							break;
						}
					case HSCROLL_STATE_SCROLLING_OUT:
						pObjectHscrollText->moParam.iStartPixel -= pDescriptorHscrollText->mcPixelCount;
						if((pObjectHscrollText->moParam.miBlockPixelLength + pObjectHscrollText->moParam.iStartPixel) <= 0)
						{
							pObjectHscrollText->moParam.iStartPixel = (0 - pObjectHscrollText->moParam.miBlockPixelLength);
							// try to do something here to change state when finished
							pObjectHscrollText->moParam.cCurrentState = HSCROLL_STATE_SCROLL_DONE;

						}
						else
						{
							break;
						}
					case HSCROLL_STATE_SCROLL_DONE:
						// increment to next item
						if(++pObjectMultilineText->moParam.mcCurrentEntry >= pObjectMultilineText->moParam.moEntryTable.mcTableEntryCount)
						{
							pObjectMultilineText->moParam.mcCurrentEntry = 0;
						}
						switch(pDescriptorHscrollText->meScrollType & HSCROLL_SCROLL_MASK)
						{
							case HSCROLL_SCROLL_FINISH_BEFORE_RESCROLL:
								if(pObjectMultilineText->moParam.mcCurrentEntry == 0)
								{
									HscrollReset(pThis);
									break;
								}
								// else fall through
							case HSCROLL_SCROLL_CONTINUOUS:
								switch(pDescriptorHscrollText->meScrollType & HSCROLL_REMOVE_MASK)
								{
									case HSCROLL_REMOVE_SCROLL:
										// Set the pixel count to the left-most position (more or less):
										pObjectHscrollText->moParam.iStartPixel = 0;
										// Set the state correctly:
										pObjectHscrollText->moParam.cCurrentState = HSCROLL_STATE_HOLDING;
										pObjectHscrollText->moParam.mcHoldTimeRemaining = pDescriptorHscrollText->mcHoldTime;
										break;
									case HSCROLL_REMOVE_IMMEDIATE:
										pObjectHscrollText->moParam.cCurrentState = HSCROLL_STATE_SCROLLING_IN;
										pObjectHscrollText->moParam.iStartPixel = pObjectHscrollText->moParam.miBlockPixelLength;
										break;
								}
								break;
							case HSCROLL_SCROLL_INDIVIDUAL_TEXTS:
								// ... then take the start position into account
								// (equivalent to a full reset of the HSCROLL_TEXT object part):
								HscrollReset(pThis);
								break;
						}
						OSDR_GetFormUniStr_ScFormatted((FORMATED_UNICODE_STRING __NEAR*)&oFormUniStr, (UINT32)(pObjectHscrollText->moObject.moParam.moEntryTable.mwEntries[pObjectMultilineText->moParam.mcCurrentEntry]));
						pObjectHscrollText->moParam.miBlockPixelLength = (oFormUniStr.mwPixelWidth + ((pFonts[pDescriptorText->mtFontIndex])->m_cCharPixelSpace));
						break;
				}
				MS_DisplayAddObject(pThis);
			}
			break;

		case MS_OP_EMPTY:	// FALL THRU
		case MS_OP_PREPARE_FOR_FREEZE:
			pObjectHscrollText->moParam.cCurrentState = HSCROLL_STATE_RESETTING;
			break;
	}

	return OMULTILINETEXT_Operation((MSO_OBJECT __NEAR *)pObjectMultilineText, MsOp, lParam);
}


BOOL OHSCROLLTEXT_FillOSDSeg(MSO_OBJECT __NEAR* pThis, MS_AREA __NEAR* pAbsArea)
{
	BOOL bStop = FALSE;
	INT16 iPixelCount = pObjectHscrollText->moParam.iStartPixel;
	FORMATED_UNICODE_STRING oFormUniStr;
	UINT8 cCount;

	MS_AREA oAbsAreaCopy;

	memcpy(&oAbsAreaCopy, pAbsArea, sizeof(MS_AREA));

	// display bitmap if required
	OSDR_FillOsdSegBitmapFitArea(OTEXT_GetBitmapFromSet(pThis, pDescriptorText->mpBmpSetBg), pAbsArea);

	if(pObjectHscrollText->moParam.cCurrentState != HSCROLL_STATE_RESETTING)
	{
		oAbsAreaCopy.msX += pDescriptorMultilineText->mnPixelLeftRightBorder;
		oAbsAreaCopy.mwW -= (pDescriptorMultilineText->mnPixelLeftRightBorder * 2);
		oAbsAreaCopy.msY += pDescriptorMultilineText->mnPixelTopBottomBorder;
		oAbsAreaCopy.mwH -= (pDescriptorMultilineText->mnPixelTopBottomBorder * 2);

		for((cCount = pObjectHscrollText->moObject.moParam.mcCurrentEntry);
			(iPixelCount < (INT16)oAbsAreaCopy.mwW) && (bStop == FALSE);
			(iPixelCount += ((INT16)oFormUniStr.mwPixelWidth + ((pFonts[pDescriptorText->mtFontIndex])->m_cCharPixelSpace) +1)))
		{
			// Get the text:
			OSDR_GetFormUniStr_ScFormatted((FORMATED_UNICODE_STRING __NEAR*)&oFormUniStr, (UINT32)(pObjectHscrollText->moObject.moParam.moEntryTable.mwEntries[cCount]));

			OSDR_FillOsdSegUniString((FORMATED_UNICODE_STRING __NEAR*)&oFormUniStr,
								(const MS_AREA __NEAR*) &oAbsAreaCopy,
								iPixelCount,	//INT16 sAbsX,
								TEXT_GetAlignYPosition(pDescriptorText->mpXYAlignText, oFormUniStr.mcPixelHeight, oAbsAreaCopy.mwH)	,//INT16 sAbsY,
								ALIGN_H_LEFT,				//UINT8 cAlignH,
								TEXT_GetAlignVertical(pDescriptorText->mpXYAlignText),
								OTEXT_GetColorFromSet(pThis, pDescriptorText->mpColorSetText));


			// Update the local block count, depending on parameters.
			switch(pDescriptorHscrollText->meScrollType & HSCROLL_SCROLL_MASK)
			{
				case HSCROLL_SCROLL_INDIVIDUAL_TEXTS:
					bStop = TRUE;
					break;
				case HSCROLL_SCROLL_CONTINUOUS:
					if(++cCount >=  pObjectHscrollText->moObject.moParam.moEntryTable.mcTableEntryCount)
						cCount = 0;
					break;
				case HSCROLL_SCROLL_FINISH_BEFORE_RESCROLL:
					if(++cCount >=  pObjectHscrollText->moObject.moParam.moEntryTable.mcTableEntryCount)
						bStop = TRUE;
					break;
			}

		}
	}
	return FALSE;
}