68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/*
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*********************************************************************************************************
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* uC/GUI
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* Universal graphic software for embedded applications
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*
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* (c) Copyright 2002, Micrium Inc., Weston, FL
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* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
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*
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* µC/GUI is protected by international copyright laws. Knowledge of the
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* source code may not be used to write a similar product. This file may
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* only be used in accordance with a license and should not be redistributed
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* in any way. We appreciate your understanding and fairness.
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*
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----------------------------------------------------------------------
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File : LCD_DrawVLine.c
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Purpose : Implementation of optional routines
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---------------------------END-OF-HEADER------------------------------
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*/
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#include "LCD_Private.h"
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#include "GUI_Private.h"
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/*********************************************************************
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*
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* Defines
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*
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**********************************************************************
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*/
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#define RETURN_IF_Y_OUT() \
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if (y < GUI_Context.ClipRect.y0) return; \
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if (y > GUI_Context.ClipRect.y1) return;
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#define RETURN_IF_X_OUT() \
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if (x < GUI_Context.ClipRect.x0) return; \
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if (x > GUI_Context.ClipRect.x1) return;
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#define CLIP_X() \
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if (x0 < GUI_Context.ClipRect.x0) { x0 = GUI_Context.ClipRect.x0; } \
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if (x1 > GUI_Context.ClipRect.x1) { x1 = GUI_Context.ClipRect.x1; }
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#define CLIP_Y() \
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if (y0 < GUI_Context.ClipRect.y0) { y0 = GUI_Context.ClipRect.y0; } \
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if (y1 > GUI_Context.ClipRect.y1) { y1 = GUI_Context.ClipRect.y1; }
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/*********************************************************************
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*
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* Public code
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* LCD_DrawVLine
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*/
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void LCD_DrawVLine(int x, int y0, int y1) {
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/* Perform clipping and check if there is something to do */
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RETURN_IF_X_OUT();
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CLIP_Y();
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if (y1 < y0) {
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return;
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}
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/* Call driver to draw */
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LCDDEV_L0_DrawVLine(x, y0, y1);
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}
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/*************************** End of file ****************************/
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