freerdp/libfreerdp/gdi/drawing.c

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2023-05-09 21:29:50 +00:00
/**
* FreeRDP: A Remote Desktop Protocol Implementation
* GDI Drawing Functions
*
* Copyright 2010-2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
* Copyright 2016 Armin Novak <armin.novak@thincast.com>
* Copyright 2016 Thincast Technologies GmbH
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* GDI Drawing Functions: http://msdn.microsoft.com/en-us/library/dd162760/ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <freerdp/freerdp.h>
#include <freerdp/gdi/gdi.h>
#include <freerdp/gdi/dc.h>
#include "drawing.h"
/**
* Set current foreground draw mode.\n
* @msdn{dd144922}
* @param hdc device context
* @return draw mode
*/
INT32 gdi_GetROP2(HGDI_DC hdc)
{
return hdc->drawMode;
}
/**
* Set current foreground draw mode.\n
* @msdn{dd145088}
* @param hdc device context
* @param fnDrawMode draw mode
* @return previous draw mode
*/
INT32 gdi_SetROP2(HGDI_DC hdc, INT32 fnDrawMode)
{
INT32 prevDrawMode = hdc->drawMode;
if (fnDrawMode > 0 && fnDrawMode <= 16)
hdc->drawMode = fnDrawMode;
return prevDrawMode;
}
/**
* Get the current background color.\n
* @msdn{dd144852}
* @param hdc device context
* @return background color
*/
UINT32 gdi_GetBkColor(HGDI_DC hdc)
{
return hdc->bkColor;
}
/**
* Set the current background color.\n
* @msdn{dd162964}
* @param hdc device color
* @param crColor new background color
* @return previous background color
*/
UINT32 gdi_SetBkColor(HGDI_DC hdc, UINT32 crColor)
{
UINT32 previousBkColor = hdc->bkColor;
hdc->bkColor = crColor;
return previousBkColor;
}
/**
* Get the current background mode.\n
* @msdn{dd144853}
* @param hdc device context
* @return background mode
*/
UINT32 gdi_GetBkMode(HGDI_DC hdc)
{
return hdc->bkMode;
}
/**
* Set the current background mode.\n
* @msdn{dd162965}
* @param hdc device context
* @param iBkMode background mode
* @return previous background mode on success, 0 on failure
*/
INT32 gdi_SetBkMode(HGDI_DC hdc, INT32 iBkMode)
{
if (iBkMode == GDI_OPAQUE || iBkMode == GDI_TRANSPARENT)
{
INT32 previousBkMode = hdc->bkMode;
hdc->bkMode = iBkMode;
return previousBkMode;
}
return TRUE;
}
/**
* Set the current text color.\n
* @msdn{dd145093}
* @param hdc device context
* @param crColor new text color
* @return previous text color
*/
UINT32 gdi_SetTextColor(HGDI_DC hdc, UINT32 crColor)
{
UINT32 previousTextColor = hdc->textColor;
hdc->textColor = crColor;
return previousTextColor;
}