85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
#ifndef BUTTON_H
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#define BUTTON_H
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/**
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* @defgroup gui Gui
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* The Gui Module
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*/
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/*@{*/
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/**
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* @defgroup button Button
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* The Button Gui-Element
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*/
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/*@{*/
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#include "touch.h"
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/**
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* Prototype for Event Listeners (called when the button is pressed)
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* @param button The pointer to the BUTTON_STRUCT where to corresponding Button was pressed
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*/
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typedef void (*BUTTON_CALLBACK)(void *button);
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/**
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* Structure to configure the Button
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*/
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typedef struct {
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TOUCH_AREA_STRUCT base; //!< Basic geometry of the button. You only need to set the x1, y1, x2, y2 members of this struct.
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uint16_t bgcolor; //!< The 16-bit background color of the button
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BUTTON_CALLBACK callback; //!< Callback
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uint16_t txtcolor; //!< The 16-bit text color
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uint8_t font; //!< The number of the font to use
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const char *text; //!< The label of the button
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} BUTTON_STRUCT;
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#define AUTO 0 //!< Use this value instead of x2, y2 in the BUTTON_STRUCT to autocalculate the button width/height
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/**
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* Adds a button. Your Callback will be called from now on, if the button was pressed
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* @param button A Pointer to the preinitialized BUTTON_STRUCT
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* @return true on success
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*/
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bool gui_button_add(BUTTON_STRUCT* button);
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/**
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* Removes the button. You will no longer receive events for this button. This function will not overdraw the region where the button was located.
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* @param button A Pointer to the BUTTON_STRUCT
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*/
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void gui_button_remove(BUTTON_STRUCT* button);
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/**
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* Redraws the button. Call this method if you have to redraw the entire screen or if you want to draw a button on top of an image.
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* @param button A Pointer to the BUTTON_STRUCT
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*/
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void gui_button_redraw(BUTTON_STRUCT* button);
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/*
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bool guiAddBitmapButton(BITMAPBUTTON_STRUCT* button);
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void guiRemoveBitmapButton(BITMAPBUTTON_STRUCT* button);
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void guiRedrawBitmapButton(BITMAPBUTTON_STRUCT* button);
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*/
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/*
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typedef struct {
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TOUCH_AREA_STRUCT base;
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unsigned int bgcolor;
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BUTTON_CALLBACK callback; //Callback
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unsigned char imgwidth;
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unsigned char imgheight;
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char* filename;
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} BITMAPBUTTON_STRUCT;
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*/
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//Notice that the first 3 Members are Equal, so it's possible to cast it to a BUTTON_STRUCT even if it's a BITMAPBUTTON_STRUCT (when changeing only the first 3 Members).
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/*@}@}*/
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#endif /* BUTTON_H */
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