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//                For Open Source Computer Vision Library
//
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#ifndef __OPENCV_HIGHGUI_H__
#define __OPENCV_HIGHGUI_H__

#include "opencv2/core/core_c.h"
#if defined WIN32 || defined _WIN32
    #include <windows.h>
    #undef min
    #undef max
#endif

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

/****************************************************************************************\
*                                  Basic GUI functions                                   *
\****************************************************************************************/
//YV
//-----------New for Qt
/* For font */
enum {  CV_FONT_LIGHT           = 25,//QFont::Light,
        CV_FONT_NORMAL          = 50,//QFont::Normal,
        CV_FONT_DEMIBOLD        = 63,//QFont::DemiBold,
        CV_FONT_BOLD            = 75,//QFont::Bold,
        CV_FONT_BLACK           = 87 //QFont::Black
};

enum {  CV_STYLE_NORMAL         = 0,//QFont::StyleNormal,
        CV_STYLE_ITALIC         = 1,//QFont::StyleItalic,
        CV_STYLE_OBLIQUE        = 2 //QFont::StyleOblique
};
/* ---------*/

//for color cvScalar(blue_component, green_component, red\_component[, alpha_component])
//and alpha= 0 <-> 0xFF (not transparent <-> transparent)
CVAPI(CvFont) cvFontQt(const char* nameFont, int pointSize CV_DEFAULT(-1), CvScalar color CV_DEFAULT(cvScalarAll(0)), int weight CV_DEFAULT(CV_FONT_NORMAL),  int style CV_DEFAULT(CV_STYLE_NORMAL), int spacing CV_DEFAULT(0));

CVAPI(void) cvAddText(const CvArr* img, const char* text, CvPoint org, CvFont *arg2);

CVAPI(void) cvDisplayOverlay(const char* name, const char* text, int delayms);
CVAPI(void) cvDisplayStatusBar(const char* name, const char* text, int delayms);

typedef void (CV_CDECL *CvOpenGLCallback)(void* userdata);
CVAPI(void) cvCreateOpenGLCallback( const char* window_name, CvOpenGLCallback callbackOpenGL, void* userdata CV_DEFAULT(NULL), double angle CV_DEFAULT(-1), double zmin CV_DEFAULT(-1), double zmax CV_DEFAULT(-1));

CVAPI(void) cvSaveWindowParameters(const char* name);
CVAPI(void) cvLoadWindowParameters(const char* name);
CVAPI(int) cvStartLoop(int (*pt2Func)(int argc, char *argv[]), int argc, char* argv[]);
CVAPI(void) cvStopLoop();

typedef void (CV_CDECL *CvButtonCallback)(int state, void* userdata);
enum {CV_PUSH_BUTTON = 0, CV_CHECKBOX = 1, CV_RADIOBOX = 2};
CVAPI(int) cvCreateButton( const char* button_name CV_DEFAULT(NULL),CvButtonCallback on_change CV_DEFAULT(NULL), void* userdata CV_DEFAULT(NULL) , int button_type CV_DEFAULT(CV_PUSH_BUTTON), int initial_button_state CV_DEFAULT(0));
//----------------------


/* this function is used to set some external parameters in case of X Window */
CVAPI(int) cvInitSystem( int argc, char** argv );

CVAPI(int) cvStartWindowThread();

// ---------  YV ---------
enum
{
    //These 3 flags are used by cvSet/GetWindowProperty
    CV_WND_PROP_FULLSCREEN = 0,//to change/get window's fullscreen property
    CV_WND_PROP_AUTOSIZE   = 1,//to change/get window's autosize property
    CV_WND_PROP_ASPECTRATIO= 2,//to change/get window's aspectratio property
    //
    //These 2 flags are used by cvNamedWindow and cvSet/GetWindowProperty
    CV_WINDOW_NORMAL       = 0x00000000,//the user can resize the window (no constraint)  / also use to switch a fullscreen window to a normal size
    CV_WINDOW_AUTOSIZE     = 0x00000001,//the user cannot resize the window, the size is constrainted by the image displayed
    //
    //Those flags are only for Qt
    CV_GUI_EXPANDED         = 0x00000000,//status bar and tool bar
    CV_GUI_NORMAL           = 0x00000010,//old fashious way
    //
    //These 3 flags are used by cvNamedWindow and cvSet/GetWindowProperty
    CV_WINDOW_FULLSCREEN   = 1,//change the window to fullscreen
    CV_WINDOW_FREERATIO    = 0x00000100,//the image expends as much as it can (no ratio constraint)
    CV_WINDOW_KEEPRATIO    = 0x00000000//the ration image is respected.
};

/* create window */
CVAPI(int) cvNamedWindow( const char* name, int flags CV_DEFAULT(CV_WINDOW_AUTOSIZE) );

/* Set and Get Property of the window */
CVAPI(void) cvSetWindowProperty(const char* name, int prop_id, double prop_value);
CVAPI(double) cvGetWindowProperty(const char* name, int prop_id);

/* display image within window (highgui windows remember their content) */
CVAPI(void) cvShowImage( const char* name, const CvArr* image );

/* resize/move window */
CVAPI(void) cvResizeWindow( const char* name, int width, int height );
CVAPI(void) cvMoveWindow( const char* name, int x, int y );


/* destroy window and all the trackers associated with it */
CVAPI(void) cvDestroyWindow( const char* name );

CVAPI(void) cvDestroyAllWindows(void);

/* get native window handle (HWND in case of Win32 and Widget in case of X Window) */
CVAPI(void*) cvGetWindowHandle( const char* name );

/* get name of highgui window given its native handle */
CVAPI(const char*) cvGetWindowName( void* window_handle );


typedef void (CV_CDECL *CvTrackbarCallback)(int pos);

/* create trackbar and display it on top of given window, set callback */
CVAPI(int) cvCreateTrackbar( const char* trackbar_name, const char* window_name,
                             int* value, int count, CvTrackbarCallback on_change CV_DEFAULT(NULL));

typedef void (CV_CDECL *CvTrackbarCallback2)(int pos, void* userdata);

CVAPI(int) cvCreateTrackbar2( const char* trackbar_name, const char* window_name,
                              int* value, int count, CvTrackbarCallback2 on_change,
                              void* userdata CV_DEFAULT(0));

/* retrieve or set trackbar position */
CVAPI(int) cvGetTrackbarPos( const char* trackbar_name, const char* windw_name );
CVAPI(void) cvSetTrackbarPos( const char* trackbar_name, const char* window_name, int pos );

enum
{
    CV_EVENT_MOUSEMOVE      =0,
    CV_EVENT_LBUTTONDOWN    =1,
    CV_EVENT_RBUTTONDOWN    =2,
    CV_EVENT_MBUTTONDOWN    =3,
    CV_EVENT_LBUTTONUP      =4,
    CV_EVENT_RBUTTONUP      =5,
    CV_EVENT_MBUTTONUP      =6,
    CV_EVENT_LBUTTONDBLCLK  =7,
    CV_EVENT_RBUTTONDBLCLK  =8,
    CV_EVENT_MBUTTONDBLCLK  =9
};

enum
{
    CV_EVENT_FLAG_LBUTTON   =1,
    CV_EVENT_FLAG_RBUTTON   =2,
    CV_EVENT_FLAG_MBUTTON   =4,
    CV_EVENT_FLAG_CTRLKEY   =8,
    CV_EVENT_FLAG_SHIFTKEY  =16,
    CV_EVENT_FLAG_ALTKEY    =32
};

typedef void (CV_CDECL *CvMouseCallback )(int event, int x, int y, int flags, void* param);

/* assign callback for mouse events */
CVAPI(void) cvSetMouseCallback( const char* window_name, CvMouseCallback on_mouse,
                                void* param CV_DEFAULT(NULL));

enum
{
/* 8bit, color or not */
    CV_LOAD_IMAGE_UNCHANGED  =-1,
/* 8bit, gray */
    CV_LOAD_IMAGE_GRAYSCALE  =0,
/* ?, color */
    CV_LOAD_IMAGE_COLOR      =1,
/* any depth, ? */
    CV_LOAD_IMAGE_ANYDEPTH   =2,
/* ?, any color */
    CV_LOAD_IMAGE_ANYCOLOR   =4
};

/* load image from file
  iscolor can be a combination of above flags where CV_LOAD_IMAGE_UNCHANGED
  overrides the other flags
  using CV_LOAD_IMAGE_ANYCOLOR alone is equivalent to CV_LOAD_IMAGE_UNCHANGED
  unless CV_LOAD_IMAGE_ANYDEPTH is specified images are converted to 8bit
*/
CVAPI(IplImage*) cvLoadImage( const char* filename, int iscolor CV_DEFAULT(CV_LOAD_IMAGE_COLOR));
CVAPI(CvMat*) cvLoadImageM( const char* filename, int iscolor CV_DEFAULT(CV_LOAD_IMAGE_COLOR));

enum
{
    CV_IMWRITE_JPEG_QUALITY =1,
    CV_IMWRITE_PNG_COMPRESSION =16,
    CV_IMWRITE_PXM_BINARY =32
};

/* save image to file */
CVAPI(int) cvSaveImage( const char* filename, const CvArr* image,
                        const int* params CV_DEFAULT(0) );

/* decode image stored in the buffer */
CVAPI(IplImage*) cvDecodeImage( const CvMat* buf, int iscolor CV_DEFAULT(CV_LOAD_IMAGE_COLOR));
CVAPI(CvMat*) cvDecodeImageM( const CvMat* buf, int iscolor CV_DEFAULT(CV_LOAD_IMAGE_COLOR));

/* encode image and store the result as a byte vector (single-row 8uC1 matrix) */
CVAPI(CvMat*) cvEncodeImage( const char* ext, const CvArr* image,
                             const int* params CV_DEFAULT(0) );

enum
{
    CV_CVTIMG_FLIP      =1,
    CV_CVTIMG_SWAP_RB   =2
};

/* utility function: convert one image to another with optional vertical flip */
CVAPI(void) cvConvertImage( const CvArr* src, CvArr* dst, int flags CV_DEFAULT(0));

/* wait for key event infinitely (delay<=0) or for "delay" milliseconds */
CVAPI(int) cvWaitKey(int delay CV_DEFAULT(0));

/****************************************************************************************\
*                         Working with Video Files and Cameras                           *
\****************************************************************************************/

/* "black box" capture structure */
typedef struct CvCapture CvCapture;

/* start capturing frames from video file */
CVAPI(CvCapture*) cvCreateFileCapture( const char* filename );

enum
{
    CV_CAP_ANY      =0,     // autodetect

    CV_CAP_MIL      =100,   // MIL proprietary drivers

    CV_CAP_VFW      =200,   // platform native
    CV_CAP_V4L      =200,
    CV_CAP_V4L2     =200,

    CV_CAP_FIREWARE =300,   // IEEE 1394 drivers
    CV_CAP_FIREWIRE =300,
    CV_CAP_IEEE1394 =300,
    CV_CAP_DC1394   =300,
    CV_CAP_CMU1394  =300,

    CV_CAP_STEREO   =400,   // TYZX proprietary drivers
    CV_CAP_TYZX     =400,
    CV_TYZX_LEFT    =400,
    CV_TYZX_RIGHT   =401,
    CV_TYZX_COLOR   =402,
    CV_TYZX_Z       =403,

    CV_CAP_QT       =500,   // QuickTime

    CV_CAP_UNICAP   =600,   // Unicap drivers

    CV_CAP_DSHOW    =700,   // DirectShow (via videoInput)

    CV_CAP_PVAPI    =800   // PvAPI, Prosilica GigE SDK
};

/* start capturing frames from camera: index = camera_index + domain_offset (CV_CAP_*) */
CVAPI(CvCapture*) cvCreateCameraCapture( int index );

/* grab a frame, return 1 on success, 0 on fail.
  this function is thought to be fast               */
CVAPI(int) cvGrabFrame( CvCapture* capture );

/* get the frame grabbed with cvGrabFrame(..)
  This function may apply some frame processing like
  frame decompression, flipping etc.
  !!!DO NOT RELEASE or MODIFY the retrieved frame!!! */
CVAPI(IplImage*) cvRetrieveFrame( CvCapture* capture, int streamIdx CV_DEFAULT(0) );

/* Just a combination of cvGrabFrame and cvRetrieveFrame
   !!!DO NOT RELEASE or MODIFY the retrieved frame!!!      */
CVAPI(IplImage*) cvQueryFrame( CvCapture* capture );

/* stop capturing/reading and free resources */
CVAPI(void) cvReleaseCapture( CvCapture** capture );

enum
{
    CV_CAP_PROP_POS_MSEC       =0,
    CV_CAP_PROP_POS_FRAMES     =1,
    CV_CAP_PROP_POS_AVI_RATIO  =2,
    CV_CAP_PROP_FRAME_WIDTH    =3,
    CV_CAP_PROP_FRAME_HEIGHT   =4,
    CV_CAP_PROP_FPS            =5,
    CV_CAP_PROP_FOURCC         =6,
    CV_CAP_PROP_FRAME_COUNT    =7,
    CV_CAP_PROP_FORMAT         =8,
    CV_CAP_PROP_MODE           =9,
    CV_CAP_PROP_BRIGHTNESS    =10,
    CV_CAP_PROP_CONTRAST      =11,
    CV_CAP_PROP_SATURATION    =12,
    CV_CAP_PROP_HUE           =13,
    CV_CAP_PROP_GAIN          =14,
    CV_CAP_PROP_EXPOSURE      =15,
    CV_CAP_PROP_CONVERT_RGB   =16,
    CV_CAP_PROP_WHITE_BALANCE =17,
    CV_CAP_PROP_RECTIFICATION =18,
    CV_CAP_PROP_MONOCROME     =19
};

/* retrieve or set capture properties */
CVAPI(double) cvGetCaptureProperty( CvCapture* capture, int property_id );
CVAPI(int)    cvSetCaptureProperty( CvCapture* capture, int property_id, double value );

// Return the type of the capturer (eg, CV_CAP_V4W, CV_CAP_UNICAP), which is unknown if created with CV_CAP_ANY
CVAPI(int)    cvGetCaptureDomain( CvCapture* capture);

/* "black box" video file writer structure */
typedef struct CvVideoWriter CvVideoWriter;

CV_INLINE int CV_FOURCC(char c1, char c2, char c3, char c4)
{
    return (c1 & 255) + ((c2 & 255) << 8) + ((c3 &255) << 16) + ((c4 & 255) << 24);
}

#define CV_FOURCC_PROMPT -1  /* Open Codec Selection Dialog (Windows only) */
#define CV_FOURCC_DEFAULT CV_FOURCC('I', 'Y', 'U', 'V') /* Use default codec for specified filename (Linux only) */

/* initialize video file writer */
CVAPI(CvVideoWriter*) cvCreateVideoWriter( const char* filename, int fourcc,
                                           double fps, CvSize frame_size,
                                           int is_color CV_DEFAULT(1));

//CVAPI(CvVideoWriter*) cvCreateImageSequenceWriter( const char* filename,
//                                                   int is_color CV_DEFAULT(1));

/* write frame to video file */
CVAPI(int) cvWriteFrame( CvVideoWriter* writer, const IplImage* image );

/* close video file writer */
CVAPI(void) cvReleaseVideoWriter( CvVideoWriter** writer );

/****************************************************************************************\
*                              Obsolete functions/synonyms                               *
\****************************************************************************************/

#define cvCaptureFromFile cvCreateFileCapture
#define cvCaptureFromCAM cvCreateCameraCapture
#define cvCaptureFromAVI cvCaptureFromFile
#define cvCreateAVIWriter cvCreateVideoWriter
#define cvWriteToAVI cvWriteFrame
#define cvAddSearchPath(path)
#define cvvInitSystem cvInitSystem
#define cvvNamedWindow cvNamedWindow
#define cvvShowImage cvShowImage
#define cvvResizeWindow cvResizeWindow
#define cvvDestroyWindow cvDestroyWindow
#define cvvCreateTrackbar cvCreateTrackbar
#define cvvLoadImage(name) cvLoadImage((name),1)
#define cvvSaveImage cvSaveImage
#define cvvAddSearchPath cvAddSearchPath
#define cvvWaitKey(name) cvWaitKey(0)
#define cvvWaitKeyEx(name,delay) cvWaitKey(delay)
#define cvvConvertImage cvConvertImage
#define HG_AUTOSIZE CV_WINDOW_AUTOSIZE
#define set_preprocess_func cvSetPreprocessFuncWin32
#define set_postprocess_func cvSetPostprocessFuncWin32

#if defined WIN32 || defined _WIN32

typedef int (CV_CDECL * CvWin32WindowCallback)(HWND, UINT, WPARAM, LPARAM, int*);
CVAPI(void) cvSetPreprocessFuncWin32( CvWin32WindowCallback on_preprocess );
CVAPI(void) cvSetPostprocessFuncWin32( CvWin32WindowCallback on_postprocess );

#endif

#ifdef __cplusplus
}
#endif

#endif