陈明泉 / vipTalk

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/*************************************************
  File name     : mtc_doodle.h
  Module        : multimedia talk client
  Author        : xiangbo.hui
  Created on    : 2015-03-27
  Description   :
      Data structure and function declare required by MTC statistics

  Modify History:
  1. Date:        Author:         Modification:
*************************************************/
#ifndef _MTC_DOODLE_H__
#define _MTC_DOODLE_H__

/**
 * @file mtc_doodle.h
 * @brief MTC Doodle Interface Functions
 *
 * This file includes doodle interface function.
 */

/**
 * @defgroup MtcDoodleKey MTC notification key for doodle.
 * @{
 */

/**
 * @brief A key whose value is a number object reflecting
 * the type of image, @ref EN_MTC_DOODLE_IMAGE_TYPE.
 */
#define MtcDoodleImageTypeKey       "MtcDoodleImageTypeKey"

/**
 * @brief A key whose value is a string object reflecting
 * the image name.
 */
#define MtcDoodleImageNameKey       "MtcDoodleImageNameKey"

/**
 * @brief A key whose value is a string object reflecting
 * the image URI.
 */
#define MtcDoodleImageUriKey        "MtcDoodleImageUriKey"

/**
 * @brief A key whose value is a array object contains 2 number object reflecting
 * the resolution in pixels.
 */
#define MtcDoodleResolutionKey      "MtcDoodleResolutionKey"

/**
 * @brief A key whose value is a array object contains 2 number object reflecting
 * the position of point, which value is from -1 to 1.
 */
#define MtcDoodlePositionKey        "MtcDoodlePositionKey"

/**
 * @brief A key whose value is a number object reflecting
 * the type of action, @ref EN_MTC_DOODLE_ACTION_TYPE.
 */
#define MtcDoodleActionTypeKey      "MtcDoodleActionTypeKey"

/**
 * @brief A key whose value is a number object reflecting
 * the sequence of action.
 */
#define MtcDoodleSeqNoKey           "MtcDoodleSeqNoKey"

/**
 * @brief A key whose value is a object reflecting
 * the brush's info, contains @ref MtcDoodleWidthKey, @ref MtcDoodleColorKey.
 */
#define MtcDoodleBrushKey           "MtcDoodleBrushKey"

/**
 * @brief A key whose value is a number object reflecting
 * the width in pixels.
 */
#define MtcDoodleWidthKey           "MtcDoodleWidthKey"

/**
 * @brief A key whose value is a number object reflecting
 * the width in pixels.
 */
#define MtcDoodleColorKey           "MtcDoodleColorKey"

/**
 * @brief A key whose value is a number object reflecting
 * the index of page.
 */
#define MtcDoodlePageIdKey          "MtcDoodlePageIdKey"

/**
 * @brief A key whose value is a number object reflecting
 * the count of page.
 */
#define MtcDoodlePageCountKey       "MtcDoodlePageCountKey"

/**
 * @brief A key whose value is a string object reflecting
 * the user's URI.
 */
#define MtcDoodleUserUriKey         "MtcDoodleUserUriKey"

/**
 * @brief A key whose value is a string object reflecting
 * the action's content.
 */
#define MtcDoodleContentKey         "MtcDoodleContentKey"

/** @} */

/**
 * @defgroup MtcDoodleNotification MTC notification names for doodle.
 * @{
 */

/** @} */

typedef ZVOID * MTC_IMG;
typedef ZVOID * MTC_ACT;
typedef ZVOID * MTC_SESS;

/** @brief The type of image. */
typedef enum EN_MTC_DOODLE_IMAGE_TYPE
{
    EN_MTC_DOODLE_IMAGE_PNG = 1,
    EN_MTC_DOODLE_IMAGE_JPEG,
    EN_MTC_DOODLE_IMAGE_BMP
} EN_MTC_DOODLE_IMAGE_TYPE;

/** @brief The type of action. */
typedef enum EN_MTC_DOODLE_ACTION_TYPE
{
    EN_MTC_DOODLE_ACTION_DRAW,
    EN_MTC_DOODLE_ACTION_ERASE,
    EN_MTC_DOODLE_ACTION_CLEAN,
    EN_MTC_DOODLE_ACTION_UNDO,
    EN_MTC_DOODLE_ACTION_SELECT_PAGE,
    EN_MTC_DOODLE_ACTION_START,
    EN_MTC_DOODLE_ACTION_STOP,
    EN_MTC_DOODLE_ACTION_LASER_POINT,
    EN_MTC_DOODLE_ACTION_ARROW,
    EN_MTC_DOODLE_ACTION_DRAW_RECTANGLE,
    EN_MTC_DOODLE_ACTION_DRAW_ELLIPSE,
    EN_MTC_DOODLE_ACTION_TEXT,
} EN_MTC_DOODLE_ACTION_TYPE;

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @brief Create image object.
 * @return            Image object.
 */
MTCFUNC MTC_IMG Mtc_DoodleCreateImage(ZFUNC_VOID);

/**
 * @brief Delete image object.
 * @param  zImage The image object.
 */
MTCFUNC ZVOID Mtc_DoodleDeleteImage(MTC_IMG zImage);

/**
 * @brief Create image object from text.
 * @param  pcMsg The text.
 * @return       The Image object.
 */
MTCFUNC MTC_IMG Mtc_DoodleParseImage(ZCONST ZCHAR *pcMsg);

/**
 * @brief Save image object to text.
 * @param  zImage The image object.
 * @return        The text string.
 */
MTCFUNC ZCONST ZCHAR * Mtc_DoodlePrintImage(MTC_IMG zImage);

/**
 * @brief Set image attributes.
 * @param  zImage The image object.
 * @param  pcInfo The attributes in JSON format which contains
 *                @ref MtcDoodlePageIdKey
 *                @ref MtcDoodleImageTypeKey
 *                @ref MtcDoodleImageNameKey
 *                @ref MtcDoodleImageUriKey
 *                @ref MtcDoodleResolutionKey
 *                @ref MtcDoodlePositionKey
 * @return        ZOK on succeed, otherwise failed.
 */
MTCFUNC ZINT Mtc_DoodleSetImageAttr(MTC_IMG zImage,
    ZCONST ZCHAR *pcInfo);

/**
 * @brief Get image attributes.
 * @param  zImage The image object.
 * @return        The attributes in JSON format which contains
 *                @ref MtcDoodlePageIdKey
 *                @ref MtcDoodleImageTypeKey
 *                @ref MtcDoodleImageNameKey
 *                @ref MtcDoodleImageUriKey
 *                @ref MtcDoodleResolutionKey
 *                @ref MtcDoodlePositionKey
 */
MTCFUNC ZCONST ZCHAR * Mtc_DoodleGetImageAttr(MTC_IMG zImage);

/**
 * @brief Create action object.
 * @return            The action object.
 */
MTCFUNC MTC_ACT Mtc_DoodleCreateAction(ZFUNC_VOID);

/**
 * @brief Delete action object.
 * @param  zAction The action object.
 */
MTCFUNC ZVOID Mtc_DoodleDeleteAction(MTC_IMG zAction);

/**
 * @brief Create action object from text.
 * @param  pcMsg The text.
 * @return       The action object.
 */
MTCFUNC MTC_ACT Mtc_DoodleParseAction(ZCONST ZCHAR *pcMsg);

/**
 * @brief Save action object to text.
 * @param  zAction The action object.
 * @return         The text string.
 */
MTCFUNC ZCONST ZCHAR * Mtc_DoodlePrintAction(MTC_IMG zAction);

/**
 * @brief Set action attributes.
 * @param  zAction The action object.
 * @param  pcInfo  The attributes in JSON format which contains
 *                 @ref MtcDoodleActionTypeKey
 *                 @ref MtcDoodleSeqNoKey
 *                 @ref MtcDoodleBrushKey
 *                 @ref MtcDoodlePageIdKey
 *                 @ref MtcDoodleContentKey
 * @return         ZOK on succeed, otherwise failed.
 */
MTCFUNC ZINT Mtc_DoodleSetActionAttr(MTC_IMG zAction,
    ZCONST ZCHAR *pcInfo);

/**
 * @brief Get action attributes.
 * @param  zAction The action object.
 * @return         The attributes in JSON format which contains
 *                 @ref MtcDoodleActionTypeKey
 *                 @ref MtcDoodleSeqNoKey
 *                 @ref MtcDoodleBrushKey
 *                 @ref MtcDoodlePageIdKey
 *                 @ref MtcDoodleContentKey
 */
MTCFUNC ZCONST ZCHAR * Mtc_DoodleGetActionAttr(MTC_IMG zAction);

/**
 * @brief Add action position.
 * @param  zAction The action object.
 * @param  fX      The X value from -1.0 to 1.0.
 * @param  fY      The Y value from -1.0 to 1.0.
 * @return         ZOK on succeed, otherwise failed.
 */
MTCFUNC ZINT Mtc_DoodleAddActionPosition(MTC_ACT zAction,
    ZFLOAT fX, ZFLOAT fY);

/**
 * @brief Set action positions.
 * @param  zAction The action object.
 * @param  fX      The value from -1.0 to 1.0.
 * @param  fY      The value from -1.0 to 1.0.
 * @param  iIntVal The interval.
 * @return         ZOK on succeed, otherwise failed.
 */
MTCFUNC ZINT Mtc_DoodleAddActionPositionX(MTC_ACT zAction,
    ZFLOAT fX, ZFLOAT fY, ZUINT iIntVal);

/**
 * @brief Get count of positions in action object.
 * @param  zAction The action object.
 * @return         The count of positions.
 */
MTCFUNC ZINT Mtc_DoodleGetActionPositionCount(MTC_ACT zAction);

/**
 * @brief Get the interval of position.
 * @param  zAction The action object.
 * @param  iIndex  The index of position, from 0 to count-1.
 * @return         The interval in milliseconds.
 */
MTCFUNC ZINT Mtc_DoodleGetActionIntval(MTC_ACT zAction, ZINT iIndex);

/**
 * @brief Get the X value of position.
 * @param  zAction The action object.
 * @param  iIndex  The index of position, from 0 to count-1.
 * @return         The X value of postion.
 */
MTCFUNC ZFLOAT Mtc_DoodleGetActionPositionX(MTC_ACT zAction, ZINT iIndex);

/**
 * @brief Get the Y value of position.
 * @param  zAction The action object.
 * @param  iIndex  The index of position, from 0 to count-1.
 * @return         The Y value of postion.
 */
MTCFUNC ZFLOAT Mtc_DoodleGetActionPositionY(MTC_ACT zAction, ZINT iIndex);

/**
 * @brief Get the path of action.
 * @param  zAction The action object.
 * @return         The path in JSON format which is array contains
 *                 all positions. Each position is array of number.
 *                 First number is interval in milliseoncds.
 *                 Second number is X value of position.
 *                 Third number is Y value of position.
 */
MTCFUNC ZCONST ZCHAR * Mtc_DoodleGetActionPath(MTC_ACT zAction);

/**
 * @brief Create session object.
 * @return            The session object.
 */
MTCFUNC MTC_SESS Mtc_DoodleCreateSession(ZFUNC_VOID);

/**
 * @brief Delete session object.
 * @param  zSession The session object.
 */
MTCFUNC ZVOID Mtc_DoodleDeleteSession(MTC_SESS zSession);

/**
 * @brief Set page count.
 * @param  zSession The session object.
 * @param  iCount   The count of pages.
 * @return          ZOK on succeed, otherwise failed.
 */
MTCFUNC ZINT Mtc_DoodleSessionSetPageCount(MTC_SESS zSession, ZINT iCount);

/**
 * @brief Add image object to session.
 *
 * You must not delete image after add this image to the session.
 * The image will replace the exist one with same MtcDoodlePageIdKey.
 * 
 * @param  zSession The session object.
 * @param  zImage   The image object.
 * @return          ZOK on succeed, otherwise failed.
 */
MTCFUNC ZINT Mtc_DoodleSessionAddImage(MTC_SESS zSession, MTC_IMG zImage);

/**
 * @brief Get the count of image.
 * @param  zSession The session object.
 * @return          The count of images.
 */
MTCFUNC ZINT Mtc_DoodleSessionGetImageCount(MTC_SESS zSession);

/**
 * @brief Enumrate the image object.
 * @param  zSession The session object.
 * @param  iIndex   The index of image, from 0 to count-1.
 * @return          The image object.
 */
MTCFUNC MTC_IMG Mtc_DoodleSessionEnumImage(MTC_SESS zSession, ZUINT iIndex);

/**
 * @brief Add action object to session.
 * @param  zSession The session object.
 * @param  bSelf    ZTRUE indicates the action was taken by self.
 *                  Otherwise the actions was taken by peer.
 * @param  zAction  The action object.
 * @return          ZOK on succeed, otherwise failed.
 */
MTCFUNC ZINT Mtc_DoodleSessionAddAction(MTC_SESS zSession, ZBOOL bSelf,
    MTC_ACT zAction);

/**
 * @brief Get count of actions.
 * @param  zSession The session object.
 * @return          The count of actions.
 */
MTCFUNC ZINT Mtc_DoodleSessionGetActionCount(MTC_SESS zSession);

/**
 * @brief Enumrate the actions in session.
 * @param  zSession The session object.
 * @param  iIndex   The index of action, from 0 to count-1.
 * @return          The action object.
 */
MTCFUNC MTC_ACT Mtc_DoodleSessionEnumAction(MTC_SESS zSession, ZUINT iIndex);

/**
 * @brief Enumrate the self flags in session.
 * @param  zSession The session object.
 * @param  iIndex   The index of action, from 0 to count-1.
 * @return          The self flag.
 */
MTCFUNC ZBOOL Mtc_DoodleSessionEnumSelf(MTC_SESS zSession, ZUINT iIndex);

#ifdef __cplusplus
}
#endif

#endif /* _MTC_DOODLE_H__ */