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lcd-common/scroll_engine: Introduce lcd_putsxy_scroll_func().

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This function supports installing a custom scroll callback. This will be
called when the scrollengine redraws the line. It allows to draw extended
styles (or anything your can possible imagine) along with the text.

It is also strictly pixel-based, the first pixel-based function that supports
scrolling.

Change-Id: I57f81ac7b3d08b877aea4cb8afa882f175ebcdfc
This commit is contained in:
Thomas Martitz 2013-12-20 23:34:28 +01:00
parent b8505222c0
commit 6630958533
6 changed files with 36 additions and 1 deletions
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5
firmware/export/lcd.h
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@ -108,6 +108,8 @@ enum screen_type {
#endif
};
struct scrollinfo;
#if defined(LCD_STRIDEFORMAT) && LCD_STRIDEFORMAT == VERTICAL_STRIDE
#define STRIDE_MAIN(w, h) (h)
#else
@ -212,6 +214,9 @@ extern void lcd_putc(int x, int y, unsigned long ucs);
extern void lcd_puts_scroll(int x, int y, const unsigned char* string);
extern void lcd_puts_scroll_style(int x, int y, const unsigned char* string,
int style);
extern void lcd_putsxy_scroll_func(int x, int y, const unsigned char *string,
void (*scroll_func)(struct scrollinfo *),
void *data, int x_offset);
#ifdef HAVE_LCD_BITMAP