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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file src/gwin/gwin_progressbar.h
* @brief GWIN Graphic window subsystem header file.
*
* @defgroup Progressbar Progressbar
* @ingroup Widgets
*
* @brief ProgressBar widget.
*
* @pre GFX_USE_GWIN must be set to GFXON in your gfxconf.h
* @pre GWIN_NEED_PROGRESSBAR must be set to GFXON in your gfxconf.h
* @{
*/
#ifndef _GWIN_PROGRESSBAR_H
#define _GWIN_PROGRESSBAR_H
/* This file is included within src/gwin/gwin_widget.h */
// A progressbar window
typedef struct GProgressbarObject {
GWidgetObject w;
coord_t dpos;
int min;
int max;
int res;
int pos;
#if GWIN_PROGRESSBAR_AUTO
GTimer gt;
#endif
} GProgressbarObject;
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Create a progressbar window.
* @return NULL if there is no resultant drawing area, otherwise a window handle.
*
* @param[in] g The GDisplay to display this window on
* @param[in] gb The GProgressbarObject structure to initialise. If this is NULL the structure is dynamically allocated.
* @param[in] pInit The initialization parameters to use
*
* @note The drawing color and the background color get set to the current defaults. If you haven't called
* @p gwinSetDefaultColor() or @p gwinSetDefaultBgColor() then these are White and Black respectively.
* @note The font gets set to the current default font. If you haven't called @p gwinSetDefaultFont() then there
* is no default font and text drawing operations will no nothing.
* @note A progressbar remembers its normal drawing state. If there is a window manager then it is automatically
* redrawn if the window is moved or its visibility state is changed.
* @note The initial progressbar range is from 0 to 100 with an initial position of 0.
* @note A progressbar does not take any GINPUT inputs.
*
* @api
*/
GHandle gwinGProgressbarCreate(GDisplay *g, GProgressbarObject *gb, const GWidgetInit *pInit);
#define gwinProgressbarCreate(w, pInit) gwinGProgressbarCreate(GDISP, w, pInit)
/**
* @brief Set the progressbar range.
*
* @param[in] gh The window handle (must be a progressbar window)
* @param[in] min The minimum value
* @param[in] max The maximum value
*
* @note The defaults are 0 and 100
* @note Sets the position to the minimum value.
* @note The progressbar is not automatically drawn. Call gwinProgressbarDraw() after changing the range.
*
* @api
*/
void gwinProgressbarSetRange(GHandle gh, int min, int max);
/**
* @brief Set the progressbar position.
*
* @param[in] gh The window handle (must be a progressbar window)
* @param[in] pos The new position
*
* @note If the new position is outside the progressbar range then the position
* is set to the closest end of the range.
* @note The progressbar is not automatically drawn. Call gwinProgressbarDraw() after changing the position.
*
* @api
*/
void gwinProgressbarSetPosition(GHandle gh, int pos);
/**
* @brief Set the resolution for the incrementation and decrementation of the progressbar
*
* @note Default is set to 1
*
* @param[in] gh The window handle (must be a progressbar window)
* @param[in] res The resolution to be set
*
* @api
*/
void gwinProgressbarSetResolution(GHandle gh, int res);
/**
* @brief Increment the progressbar value
*
* @details Increments by the resolution set through gwinProgressbarSetResolution()
*
* @param[in] gh The window handle (must be a progressbar window)
*
* @api
*/
void gwinProgressbarIncrement(GHandle gh);
/**
* @brief Decrement the progressbar value
*
* @details Decrements by the resolution set through gwinProgressbarSetResolution()
*
* @param[in] gh The window handle (must be a progressbar window)
*
* @api
*/
void gwinProgressbarDecrement(GHandle gh);
/**
* @brief Get the current progressbar position.
* @return The progressbar position
*
* @param[in] gh The window handle (must be a progressbar window)
*
* @note The use of a listener to get the progressbar position is recommended if you
* want continuous updates on the progressbar position.
*
* @api
*/
#define gwinProgressbarGetPosition(gh) (((GProgressbarObject *)(gh))->pos)
/**
* @brief Reset the progressbar to the minimum position
*
* @param[in] gh The window handle (must be a progressbar window)
*
* @api
*/
#define gwinProgressbarReset(gh) gwinProgressbarSetPosition(gh, ((GProgressbarObject *)(gh))->min)
#if GWIN_PROGRESSBAR_AUTO || defined(__DOXYGEN__)
/**
* @brief Automatically increments the progress bar
*
* @note The delay is generated using the GTIMER module which is based on software/virtual timer.
* Therefore, the delay is totally unprecise.
*
* @note The progressbar incrementation starts at the current level. It is not reset to the minimum value.
*
* @note An event is generated once the maximum value has been reached (ToDo)
*
* @param[in] gh The window handle (must be a progressbar window)
* @param[in] delay The incrementation delay (in milliseconds)
*
* @api
*/
void gwinProgressbarStart(GHandle gh, delaytime_t delay);
/**
* @brief Stop the timer which is started by @p gwinProgressbarStart()
*
* @param[in] gh The window handle (must be a progressbar window)
*
* @api
*/
void gwinProgressbarStop(GHandle gh);
#endif /* GWIN_PROGRESSBAR_AUTO */
/**
* @defgroup Renderings_Progressbar Renderings
*
* @brief Built-in rendering functions for the progressbar widget.
*
* @details These function may be passed to @p gwinSetCustomDraw() to get different progressbar drawing styles.
*
* @note In your custom progressbar drawing function you may optionally call these
* standard functions and then draw your extra details on top.
* @note These custom drawing routines don't have to worry about setting clipping as the framework
* sets clipping to the object window prior to calling these routines.
*
* @{
*/
/**
* @brief The default rendering function for the progressbar widget
*
* @param[in] gw The widget object (must be a progressbar object)
* @param[in] param A parameter passed in from the user. Ignored by this function.
*
* @api
*/
void gwinProgressbarDraw_Std(GWidgetObject *gw, void *param);
#if GDISP_NEED_IMAGE || defined(__DOXYGEN__)
/**
* @brief Renders a progressbar using an image.
*
* @param[in] gw The widget object (must be a progressbar handle)
* @param[in] param A parameter passed in from the user. Must be an image handle. See note below.
*
* @note The image must be already opened before calling @p gwinSetCustomDraw().
* @note The image is tiled to fill the active area of the progressbar. The normal colors
* apply to the border and inactive area and the dividing line between the active
* and inactive areas. No checking is done to compare the dimensions of the progressbar
* to the size of the image. Note text is drawn on top of the image.
*
* @pre GDISP_NEED_IMAGE must be set to GFXON
*
* @api
*/
void gwinProgressbarDraw_Image(GWidgetObject *gw, void *param);
#endif /* GDISP_NEED_IMAGE */
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* _GWIN_PROGRESSBAR_H */
/** @} */
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