/* ********************************************************************** *\ * Copyright IBM Corporation 1988,1991 - All Rights Reserved * * For full copyright information see:'andrew/config/COPYRITE' * \* ********************************************************************** */ /* $Disclaimer: * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appear in all copies and that * both that copyright notice, this permission notice, and the following * disclaimer appear in supporting documentation, and that the names of * IBM, Carnegie Mellon University, and other copyright holders, not be * used in advertising or publicity pertaining to distribution of the software * without specific, written prior permission. * * IBM, CARNEGIE MELLON UNIVERSITY, AND THE OTHER COPYRIGHT HOLDERS * DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT * SHALL IBM, CARNEGIE MELLON UNIVERSITY, OR ANY OTHER COPYRIGHT HOLDER * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE * OF THIS SOFTWARE. * $ */ #ifndef NORCSID #define NORCSID static char rcsid[]="$Header: /afs/cs.cmu.edu/project/atk-dist/auis-6.3/atk/chart/RCS/chartpie.c,v 1.12 1993/11/18 02:34:33 gk5g Exp $"; #endif /** SPECIFICATION -- External Facility Suite ********************************* TITLE The Pie Chart View-object MODULE chartpie.c VERSION 0.0 AUTHOR TC Peters Information Technology Center, Carnegie-Mellon University DESCRIPTION This is the suite of Methods that support the Chart View-object. NB: The comment-symbol "===" indicates areas which are: 1 - Questionable OR 2 - Arbitrary OR 3 - Temporary Hacks Such curiosities need be resolved prior to Project Completion... HISTORY 03/28/89 Created (TCP) 09/05/89 Upgrade to V1.0 (TCP) 09/07/89 Set CurrentItem (TCP) END-SPECIFICATION ************************************************************/ #include #include "graphic.ih" #include "view.ih" #include "apt.h" #include "aptv.ih" #include "chartobj.ih" #include "chart.ih" #include "chartpie.eh" #include int chartpie_debug = 0; #define debug chartpie_debug struct chartpie_item { struct chart_item *item; long x, y; long x_label, y_label; double percent; }; struct chartpie_drawing { struct rectangle bounds; long x_center; long y_center; double sum; long count; struct chartpie_item item[1]; }; #define Drawing ((self)->drawing) #define DrawingSum Drawing->sum #define DrawingCount Drawing->count #define DrawingBounds &Drawing->bounds #define DrawingLeft Drawing->bounds.left #define DrawingTop Drawing->bounds.top #define DrawingWidth Drawing->bounds.width #define DrawingHeight Drawing->bounds.height #define DrawingX Drawing->x_center #define DrawingY Drawing->y_center #define DrawingItem(i) Drawing->item[i].item #define DrawingItemX(i) Drawing->item[i].x #define DrawingItemY(i) Drawing->item[i].y #define DrawingItemLabelX(i) Drawing->item[i].x_label #define DrawingItemLabelY(i) Drawing->item[i].y_label #define DrawingItemPercent(i) Drawing->item[i].percent #define Screen 1 #define Paper 2 #define Bounds (chartpie_ChartBounds(self)) #define Left (chartpie_ChartLeft(self)) #define Top (chartpie_ChartTop(self)) #define Width (chartpie_ChartWidth(self)) #define Height (chartpie_ChartHeight(self)) #define Right (chartpie_ChartRight(self)) #define Bottom (chartpie_ChartBottom(self)) #define Middle (chartpie_ChartMiddle(self)) #define Center (chartpie_ChartCenter(self)) boolean chartpie__InitializeObject( classID, self) register struct classheader *classID; register struct chartpie *self; { IN(chartpie_InitializeObject); chartpie_SetShrinkIcon( self, 'e', "icon12", "PieChart", "andysans10b" ); chartpie_SetHelpFileName( self, "/usr/andy/help/ez.help"/*=== ===*/ ); chartpie_SetChartOptions( self, chartobj_SuppressScales | chartobj_SuppressLabels ); Drawing = NULL; OUT(chartpie_InitializeObject); return TRUE; } void chartpie__FinalizeObject( classID, self ) register struct classheader *classID; register struct chartpie *self; { IN(chartpie_FinalizeObject); if ( Drawing ) free( Drawing ); OUT(chartpie_FinalizeObject); } void chartpie__SetDebug( self, state ) register struct chartpie *self; register char state; { IN(chartpie_SetDebug); super_SetDebug( self, debug = state ); OUT(chartpie_SetDebug); } struct view * chartpie__HitChart( self, action, x, y, clicks ) register struct chartpie *self; register enum view_MouseAction action; register long x, y, clicks; { static long prior_x, prior_y, candidate; register double radius = DrawingX - DrawingLeft, hyp, x_delta, y_delta, delta = 0, start_angle = 0, end_angle, angle; register struct view *hit; IN(chartpie_HitChart); hit = (struct view *) self; x_delta = x - DrawingX; y_delta = y - DrawingY; hyp = hypot( x_delta, y_delta ); angle = -(360.0 * (atan2( y_delta, x_delta ) / 6.28318)); if ( angle <= 0 ) angle += 360.0; /*===messy===*/ switch ( action ) { case view_LeftDown: chartpie_SetFont( self, chartpie_IconFont(self) ); chartpie_SetTransferMode( self, graphic_INVERT ); for ( candidate = 0; candidate < DrawingCount; candidate++ ) { end_angle = start_angle + (3.6 * DrawingItemPercent(candidate)); if ( angle >= start_angle && angle <= end_angle ) { chartpie_CurrentItem( self ) = DrawingItem(candidate); break; } start_angle = end_angle; } chartpie_MoveTo( self, prior_x = DrawingItemX(candidate), prior_y = DrawingItemY(candidate) ); chartpie_DrawString( self, "E", NULL ); break; case view_LeftMovement: chartpie_MoveTo( self, prior_x, prior_y ); chartpie_DrawString( self, "E", NULL ); chartpie_MoveTo( self, prior_x = DrawingX + (radius * (x_delta / hyp)), prior_y = DrawingY + (radius * (y_delta / hyp)) ); chartpie_DrawString( self, "E", NULL ); break; case view_LeftUp: chartpie_MoveTo( self, prior_x, prior_y ); chartpie_DrawString( self, "E", NULL ); if ( delta )/*===*/ chart_NotifyObservers( Data, chart_ItemValueChanged ); break; } OUT(chartpie_HitChart); return hit; } void chartpie__DrawChart( self ) register struct chartpie *self; { IN(chartpie_DrawChart); Show_Pie_Chart( self, Screen ); OUT(chartpie_DrawChart); } void chartpie__PrintChart( self ) register struct chartpie *self; { IN(chartpie_PrintChart); Show_Pie_Chart( self, Paper ); OUT(chartpie_PrintChart); } static Show_Pie_Chart( self, medium ) register struct chartpie *self; register long medium; { register long i; short height; char percent_string[257]; register struct chart_item *item; register double degrees, current_degree = 0.0; register struct fontdesc *font; IN(Show_Pie_Chart); Compute_Pie_Points( self ); chartpie_SetFont( self, font = chartpie_BuildFont( self, "andysans10", &height ) ); chartpie_SetTransferMode( self, graphic_BLACK ); if ( medium == Screen ) chartpie_DrawOval( self, DrawingBounds ); else if ( medium == Paper ) chartpie_PrintCircle(self, DrawingX, DrawingY, MIN(DrawingX - DrawingLeft, DrawingY - DrawingTop)); item = chart_ItemAnchor( Data ); for ( i = 0; i < chart_ItemCount(Data) && item; i++ ) { if ( medium == Screen ) { chartpie_MoveTo( self, DrawingX, DrawingY ); chartpie_DrawLineTo( self, DrawingItemX(i), DrawingItemY(i) ); } else { degrees = 360.0 * (chart_ItemAttribute( Data, item, chart_ItemValue(0) ) / DrawingSum); chartpie_PrintSlice( self, DrawingX, DrawingY, DrawingX - DrawingLeft, current_degree, current_degree += degrees, i, chart_ItemCount(Data), 0 ); } if ( chart_ItemAttribute( Data, item, chart_ItemName(0) ) ) { DEBUGst(Name,chart_ItemAttribute( Data, item, chart_ItemName(0) )); if ( chart_ItemFontName( Data ) ) { font = chartpie_BuildFont( self, chart_ItemFontName( Data ), &height ); if ( medium == Screen ) chartpie_SetFont( self, font ); else chartpie_SetPrintFont( self, chart_ItemFontName( Data ) ); } sprintf( percent_string, "%.2f%%", DrawingItemPercent(i) ); if ( medium == Screen ) { chartpie_MoveTo( self, DrawingItemLabelX(i), DrawingItemLabelY(i) ); chartpie_DrawString( self, chart_ItemAttribute( Data, item, chart_ItemName(0) ), view_BETWEENLEFTANDRIGHT | view_BETWEENTOPANDBOTTOM ); chartpie_MoveTo( self, DrawingItemLabelX(i), DrawingItemLabelY(i) + height ); chartpie_DrawString( self, percent_string, view_BETWEENLEFTANDRIGHT | view_BETWEENTOPANDBOTTOM ); } else { chartpie_SetPrintGrayLevel( self, 0.0 ); chartpie_PrintString( self, DrawingItemLabelX(i), DrawingItemLabelY(i), chart_ItemAttribute( Data, item, chart_ItemName(0) ), 0 ); chartpie_PrintString( self, DrawingItemLabelX(i), DrawingItemLabelY(i) + height, percent_string, 0 ); } } item = chart_NextItem( Data, item ); } OUT(Show_Pie_Chart); } static Compute_Pie_Points( self ) register struct chartpie *self; { register long i, count = 0; register struct chart_item *item; register double sum = 0, radian, degrees, current_degree = 90.0, radius; IN(Compute_Pie_Points); item = chart_ItemAnchor( Data ); for ( i = 0; i < chart_ItemCount( Data ) && item; i++ ) { count++; sum += chart_ItemAttribute( Data, item, chart_ItemValue(0) ); item = chart_NextItem( Data, item ); } if ( Drawing ) free( Drawing ); Drawing = (struct chartpie_drawing *) malloc( sizeof(struct chartpie_drawing) + count * sizeof(struct chartpie_item) ); DrawingCount = count; DEBUGdt(Count,DrawingCount); DrawingSum = sum; DEBUGgt(Sum,DrawingSum); DrawingTop = Top; if ( Width > Height ) DrawingWidth = DrawingHeight = Height - 1; else { DrawingWidth = DrawingHeight = Width - 1; DrawingTop = Middle - DrawingHeight / 2; } DrawingLeft = Center - DrawingWidth / 2; DEBUGdt(Left,DrawingLeft); DEBUGdt(Top,DrawingTop); DEBUGdt(Width,DrawingWidth); DEBUGdt(Height,DrawingHeight); radius = DrawingWidth / 2; DrawingX = Center; DrawingY = DrawingTop + radius; item = chart_ItemAnchor( Data ); for ( i = 0; i < chart_ItemCount(Data) && item; i++ ) { DrawingItem(i) = item; DEBUGdt(Value,chart_ItemAttribute( Data, item, chart_ItemValue(0) )); DrawingItemPercent(i) = (chart_ItemAttribute( Data, item, chart_ItemValue(0) ) / DrawingSum) * 100; degrees = 3.6 * DrawingItemPercent(i); radian = 6.28318 * ((current_degree + degrees)/360.0); DrawingItemX(i) = DrawingX + radius * sin( radian ); DrawingItemY(i) = DrawingY + radius * cos( radian ); radian = 6.28318 * ((current_degree + (degrees/2.0))/360.0); DrawingItemLabelX(i) = DrawingX + (radius * 0.75) * sin( radian ); DrawingItemLabelY(i) = DrawingY + (radius * 0.75) * cos( radian ); current_degree += degrees; item = chart_NextItem( Data, item ); } OUT(Compute_Pie_Points); }