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Added a tgi_pieslice function.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@4449 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz 2009-11-05 20:32:17 +00:00
parent bafd7a7279
commit eee4430061
5 changed files with 124 additions and 3 deletions
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1
asminc/tgi-kernel.inc
View File

@ -180,6 +180,7 @@ TGI_TEXT_VERTICAL = 1
.global _tgi_load_driver
.global _tgi_outtext
.global _tgi_outtextxy
.global _tgi_pieslice
.global _tgi_setcolor
.global _tgi_setdrawpage
.global _tgi_setpalette

50
doc/funcref.sgml
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@ -4879,10 +4879,10 @@ be used in presence of a prototype.
<descrip>
<tag/Function/Draw an elliptic arc in the current color.
<tag/Header/<tt/<ref id="tgi.h" name="tgi.h">/
<tag/Declaration/<tt/void __fastcall__ tgi_arc (int x, int y,
<tag/Declaration/<tt/void __fastcall__ tgi_arc (int x, int y,
unsigned char rx, unsigned char ry, unsigned sa, unsigned ea);/
<tag/Description/The function draws an elliptic arc with center at x/y and
radii rx/ry using the current drawing color. The arc covers the angle
radii rx/ry using the current drawing color. The arc covers the angle
between sa and ea (startangle and endangle), which must be in the range
0..360.
<tag/Limits/<itemize>
@ -4896,6 +4896,7 @@ of range.
<ref id="tgi_bar" name="tgi_bar">,
<ref id="tgi_circle" name="tgi_circle">,
<ref id="tgi_ellipse" name="tgi_ellipse">,
<ref id="tgi_pieslice" name="tgi_pieslice">,
<ref id="tgi_setcolor" name="tgi_setcolor">
<tag/Example/<verb>
/* Draw the upper half of an ellipse */
@ -4947,6 +4948,7 @@ be used in presence of a prototype.
<ref id="tgi_arc" name="tgi_arc">,
<ref id="tgi_bar" name="tgi_bar">,
<ref id="tgi_ellipse" name="tgi_ellipse">,
<ref id="tgi_pieslice" name="tgi_pieslice">,
<ref id="tgi_setcolor" name="tgi_setcolor">
<tag/Example/<verb>
tgi_setcolor(TGI_COLOR_BLACK);
@ -4974,6 +4976,7 @@ be used in presence of a prototype.
</descrip>
</quote>
<sect1>tgi_done<label id="tgi_done"><p>
<quote>
@ -5013,6 +5016,7 @@ be used in presence of a prototype.
<ref id="tgi_arc" name="tgi_arc">,
<ref id="tgi_bar" name="tgi_bar">,
<ref id="tgi_circle" name="tgi_circle">,
<ref id="tgi_pieslice" name="tgi_pieslice">,
<ref id="tgi_setcolor" name="tgi_setcolor">
<tag/Example/<verb>
tgi_setcolor(TGI_COLOR_RED);
@ -5346,6 +5350,7 @@ tgi_init(); //Set up the default palette and clear the screen.
</descrip>
</quote>
<sect1>tgi_ioctl<label id="tgi_ioctl"><p>
<quote>
@ -5380,6 +5385,7 @@ if (!tgi_busy()) {
</descrip>
</quote>
<sect1>tgi_line<label id="tgi_line"><p>
<quote>
@ -5400,6 +5406,7 @@ be used in presence of a prototype.
</descrip>
</quote>
<sect1>tgi_lineto<label id="tgi_lineto"><p>
<quote>
@ -5420,6 +5427,7 @@ be used in presence of a prototype.
</descrip>
</quote>
<sect1>tgi_load<label id="tgi_load"><p>
<quote>
@ -5440,6 +5448,7 @@ be used in presence of a prototype.
</descrip>
</quote>
<sect1>tgi_load_driver<label id="tgi_load_driver"><p>
<quote>
@ -5462,6 +5471,7 @@ be used in presence of a prototype.
</descrip>
</quote>
<sect1>tgi_outtext<label id="tgi_outtext"><p>
<quote>
@ -5482,6 +5492,7 @@ be used in presence of a prototype.
</descrip>
</quote>
<sect1>tgi_outtextxy<label id="tgi_outtextxy"><p>
<quote>
@ -5502,6 +5513,41 @@ be used in presence of a prototype.
</descrip>
</quote>
<sect1>tgi_pieslice<label id="tgi_pieslice"><p>
<quote>
<descrip>
<tag/Function/Draw an elliptic pie slice in the current color.
<tag/Header/<tt/<ref id="tgi.h" name="tgi.h">/
<tag/Declaration/<tt/void __fastcall__ tgi_pie slice (int x, int y,
unsigned char rx, unsigned char ry, unsigned sa, unsigned ea);/
<tag/Description/The function draws an elliptic pie slice with center at x/y
and radii rx/ry using the current drawing color. The pie slice covers the angle
between sa and ea (startangle and endangle), which must be in the range
0..360.
<tag/Limits/<itemize>
<item>The function is only available as fastcall function, so it may only
be used in presence of a prototype.
<item>The function behaves unexpectedly or may crash if the angles are out
of range.
</itemize>
<tag/Availability/cc65
<tag/See also/
<ref id="tgi_bar" name="tgi_arc">,
<ref id="tgi_bar" name="tgi_bar">,
<ref id="tgi_circle" name="tgi_circle">,
<ref id="tgi_ellipse" name="tgi_ellipse">,
<ref id="tgi_setcolor" name="tgi_setcolor">
<tag/Example/<verb>
/* Draw the closed upper half of an ellipse */
tgi_setcolor(TGI_COLOR_BLUE);
tgi_pieslice (50, 50, 40, 20, 0, 180);
</verb>
</descrip>
</quote>
<sect1>tgi_setcolor<label id="tgi_setcolor"><p>
<quote>

8
include/tgi.h
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@ -226,6 +226,14 @@ void __fastcall__ tgi_arc (int x, int y, unsigned char rx, unsigned char ry,
* bevave unextectedly).
*/
void __fastcall__ tgi_pieslice (int x, int y, unsigned char rx, unsigned char ry,
unsigned sa, unsigned ea);
/* Draw an ellipse pie slice with center at x/y and radii rx/ry using the
* current drawing color. The pie slice covers the angle between sa and ea
* (startangle and endangle), which must be in the range 0..360 (otherwise the
* function may behave unextectedly).
*/
void __fastcall__ tgi_bar (int x1, int y1, int x2, int y2);
/* Draw a bar (a filled rectangle) using the current color. */

3
libsrc/tgi/Makefile
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@ -32,7 +32,8 @@ CFLAGS = -Osir -g -T -t $(SYS) --forget-inc-paths -I . -I ../../include
C_OBJS = tgi_arc.o \
tgi_load.o \
tgi_load_driver.o \
tgi_load_vectorfont.o
tgi_load_vectorfont.o \
tgi_pieslice.o
S_OBJS = tgi-kernel.o \
tgi_bar.o \

65
libsrc/tgi/tgi_pieslice.c Normal file
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@ -0,0 +1,65 @@
/*****************************************************************************/
/* */
/* tgi_pieslice.c */
/* */
/* Draw an ellipic pie slice */
/* */
/* */
/* */
/* (C) 2009, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#include <tgi.h>
#include <tgi/tgi-kernel.h>
#include <cc65.h>
/*****************************************************************************/
/* Code */
/*****************************************************************************/
void __fastcall__ tgi_pieslice (int x, int y, unsigned char rx, unsigned char ry,
unsigned sa, unsigned ea)
/* Draw an ellipse pie slice with center at x/y and radii rx/ry using the
* current drawing color. The pie slice covers the angle between sa and ea
* (startangle and endangle), which must be in the range 0..360 (otherwise the
* function may behave unextectedly).
*/
{
/* Draw an arc ... */
tgi_arc (x, y, rx, ry, sa, ea);
/* ... and close it */
tgi_line (x, y, x + tgi_imulround (rx, cc65_cos (sa)), y - tgi_imulround (ry, cc65_sin (sa)));
tgi_line (x, y, x + tgi_imulround (rx, cc65_cos (ea)), y - tgi_imulround (ry, cc65_sin (ea)));
}