system/lib/lcd/gui/Core/GUI_DispString.c

86 lines
3.0 KiB
C

/*
*********************************************************************************************************
* uC/GUI
* Universal graphic software for embedded applications
*
* (c) Copyright 2002, Micrium Inc., Weston, FL
* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
* µC/GUI is protected by international copyright laws. Knowledge of the
* source code may not be used to write a similar product. This file may
* only be used in accordance with a license and should not be redistributed
* in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File : GUI_DispString.C
Purpose : Implementation of GUI_DispString function.
---------------------------END-OF-HEADER------------------------------
*/
#include <stddef.h> /* needed for definition of NULL */
#include <stdio.h>
#include "GUI_Protected.h"
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* GUI_DispString
*/
void GUI_DispString(const char GUI_UNI_PTR *s) {
int xAdjust, yAdjust, xOrg;
int FontSizeY;
if (!s)
return;
GUI_LOCK();
FontSizeY = GUI_GetFontDistY();
xOrg = GUI_Context.DispPosX;
/* Adjust vertical position */
yAdjust = GUI_GetYAdjust();
GUI_Context.DispPosY -= yAdjust;
for (; *s; s++) {
GUI_RECT r;
int LineNumChars = GUI__GetLineNumChars(s, 0x7fff);
int xLineSize = GUI__GetLineDistX(s, LineNumChars);
/* Check if x-position needs to be changed due to h-alignment */
switch (GUI_Context.TextAlign & GUI_TA_HORIZONTAL) {
case GUI_TA_CENTER: xAdjust = xLineSize / 2; break;
case GUI_TA_RIGHT: xAdjust = xLineSize; break;
default: xAdjust = 0;
}
r.x0 = GUI_Context.DispPosX -= xAdjust;
r.x1 = r.x0 + xLineSize - 1;
r.y0 = GUI_Context.DispPosY;
r.y1 = r.y0 + FontSizeY - 1;
GUI__DispLine(s, LineNumChars, &r);
GUI_Context.DispPosY = r.y0;
s += GUI_UC__NumChars2NumBytes(s, LineNumChars);
if ((*s == '\n') || (*s == '\r')) {
switch (GUI_Context.TextAlign & GUI_TA_HORIZONTAL) {
case GUI_TA_CENTER:
case GUI_TA_RIGHT:
GUI_Context.DispPosX = xOrg;
break;
default:
GUI_Context.DispPosX = GUI_Context.LBorder;
break;
}
if (*s == '\n')
GUI_Context.DispPosY += FontSizeY;
} else {
GUI_Context.DispPosX = r.x0 + xLineSize;
}
if (*s == 0) /* end of string (last line) reached ? */
break;
}
GUI_Context.DispPosY += yAdjust;
GUI_Context.TextAlign &= ~GUI_TA_HORIZONTAL;
GUI_UNLOCK();
}
/*************************** End of file ****************************/