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Added a tgi_pieslice function.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4449 b7a2c559-68d2-44c3-8de9-860c34a00d81
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@ -180,6 +180,7 @@ TGI_TEXT_VERTICAL = 1
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.global _tgi_load_driver
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.global _tgi_outtext
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.global _tgi_outtextxy
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.global _tgi_pieslice
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.global _tgi_setcolor
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.global _tgi_setdrawpage
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.global _tgi_setpalette
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@ -4896,6 +4896,7 @@ of range.
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<ref id="tgi_bar" name="tgi_bar">,
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<ref id="tgi_circle" name="tgi_circle">,
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<ref id="tgi_ellipse" name="tgi_ellipse">,
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<ref id="tgi_pieslice" name="tgi_pieslice">,
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<ref id="tgi_setcolor" name="tgi_setcolor">
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<tag/Example/<verb>
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/* Draw the upper half of an ellipse */
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@ -4947,6 +4948,7 @@ be used in presence of a prototype.
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<ref id="tgi_arc" name="tgi_arc">,
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<ref id="tgi_bar" name="tgi_bar">,
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<ref id="tgi_ellipse" name="tgi_ellipse">,
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<ref id="tgi_pieslice" name="tgi_pieslice">,
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<ref id="tgi_setcolor" name="tgi_setcolor">
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<tag/Example/<verb>
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tgi_setcolor(TGI_COLOR_BLACK);
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@ -4974,6 +4976,7 @@ be used in presence of a prototype.
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</descrip>
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</quote>
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<sect1>tgi_done<label id="tgi_done"><p>
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<quote>
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@ -5013,6 +5016,7 @@ be used in presence of a prototype.
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<ref id="tgi_arc" name="tgi_arc">,
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<ref id="tgi_bar" name="tgi_bar">,
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<ref id="tgi_circle" name="tgi_circle">,
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<ref id="tgi_pieslice" name="tgi_pieslice">,
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<ref id="tgi_setcolor" name="tgi_setcolor">
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<tag/Example/<verb>
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tgi_setcolor(TGI_COLOR_RED);
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@ -5346,6 +5350,7 @@ tgi_init(); //Set up the default palette and clear the screen.
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</descrip>
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</quote>
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<sect1>tgi_ioctl<label id="tgi_ioctl"><p>
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<quote>
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@ -5380,6 +5385,7 @@ if (!tgi_busy()) {
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</descrip>
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</quote>
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<sect1>tgi_line<label id="tgi_line"><p>
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<quote>
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@ -5400,6 +5406,7 @@ be used in presence of a prototype.
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</descrip>
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</quote>
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<sect1>tgi_lineto<label id="tgi_lineto"><p>
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<quote>
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@ -5420,6 +5427,7 @@ be used in presence of a prototype.
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</descrip>
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</quote>
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<sect1>tgi_load<label id="tgi_load"><p>
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<quote>
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@ -5440,6 +5448,7 @@ be used in presence of a prototype.
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</descrip>
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</quote>
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<sect1>tgi_load_driver<label id="tgi_load_driver"><p>
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<quote>
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@ -5462,6 +5471,7 @@ be used in presence of a prototype.
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</descrip>
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</quote>
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<sect1>tgi_outtext<label id="tgi_outtext"><p>
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<quote>
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@ -5482,6 +5492,7 @@ be used in presence of a prototype.
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</descrip>
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</quote>
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<sect1>tgi_outtextxy<label id="tgi_outtextxy"><p>
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<quote>
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@ -5502,6 +5513,41 @@ be used in presence of a prototype.
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</descrip>
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</quote>
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<sect1>tgi_pieslice<label id="tgi_pieslice"><p>
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<quote>
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<descrip>
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<tag/Function/Draw an elliptic pie slice in the current color.
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<tag/Header/<tt/<ref id="tgi.h" name="tgi.h">/
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<tag/Declaration/<tt/void __fastcall__ tgi_pie slice (int x, int y,
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unsigned char rx, unsigned char ry, unsigned sa, unsigned ea);/
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<tag/Description/The function draws an elliptic pie slice with center at x/y
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and radii rx/ry using the current drawing color. The pie slice covers the angle
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between sa and ea (startangle and endangle), which must be in the range
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0..360.
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may only
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be used in presence of a prototype.
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<item>The function behaves unexpectedly or may crash if the angles are out
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of range.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="tgi_bar" name="tgi_arc">,
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<ref id="tgi_bar" name="tgi_bar">,
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<ref id="tgi_circle" name="tgi_circle">,
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<ref id="tgi_ellipse" name="tgi_ellipse">,
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<ref id="tgi_setcolor" name="tgi_setcolor">
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<tag/Example/<verb>
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/* Draw the closed upper half of an ellipse */
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tgi_setcolor(TGI_COLOR_BLUE);
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tgi_pieslice (50, 50, 40, 20, 0, 180);
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</verb>
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</descrip>
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</quote>
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<sect1>tgi_setcolor<label id="tgi_setcolor"><p>
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<quote>
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@ -226,6 +226,14 @@ void __fastcall__ tgi_arc (int x, int y, unsigned char rx, unsigned char ry,
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* bevave unextectedly).
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*/
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void __fastcall__ tgi_pieslice (int x, int y, unsigned char rx, unsigned char ry,
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unsigned sa, unsigned ea);
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/* Draw an ellipse pie slice with center at x/y and radii rx/ry using the
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* current drawing color. The pie slice covers the angle between sa and ea
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* (startangle and endangle), which must be in the range 0..360 (otherwise the
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* function may behave unextectedly).
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*/
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void __fastcall__ tgi_bar (int x1, int y1, int x2, int y2);
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/* Draw a bar (a filled rectangle) using the current color. */
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@ -32,7 +32,8 @@ CFLAGS = -Osir -g -T -t $(SYS) --forget-inc-paths -I . -I ../../include
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C_OBJS = tgi_arc.o \
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tgi_load.o \
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tgi_load_driver.o \
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tgi_load_vectorfont.o
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tgi_load_vectorfont.o \
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tgi_pieslice.o
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S_OBJS = tgi-kernel.o \
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tgi_bar.o \
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65
libsrc/tgi/tgi_pieslice.c
Normal file
65
libsrc/tgi/tgi_pieslice.c
Normal file
@ -0,0 +1,65 @@
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/*****************************************************************************/
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/* */
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/* tgi_pieslice.c */
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/* */
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/* Draw an ellipic pie slice */
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/* */
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/* */
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/* */
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/* (C) 2009, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#include <tgi.h>
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#include <tgi/tgi-kernel.h>
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#include <cc65.h>
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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void __fastcall__ tgi_pieslice (int x, int y, unsigned char rx, unsigned char ry,
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unsigned sa, unsigned ea)
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/* Draw an ellipse pie slice with center at x/y and radii rx/ry using the
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* current drawing color. The pie slice covers the angle between sa and ea
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* (startangle and endangle), which must be in the range 0..360 (otherwise the
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* function may behave unextectedly).
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*/
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{
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/* Draw an arc ... */
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tgi_arc (x, y, rx, ry, sa, ea);
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/* ... and close it */
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tgi_line (x, y, x + tgi_imulround (rx, cc65_cos (sa)), y - tgi_imulround (ry, cc65_sin (sa)));
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tgi_line (x, y, x + tgi_imulround (rx, cc65_cos (ea)), y - tgi_imulround (ry, cc65_sin (ea)));
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}
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