X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=winboard%2Fwevalgraph.c;h=ec57ab32c5e08d3de27dd6e89c37f28fb6801d60;hb=cfe2d2d1940d9f17f3197cdcc36f4233150d3db1;hp=21fd1e4c988b7b6a1ddef3959c15e71933cb87cc;hpb=756dc94735b48fd28efc0bd19c4099acc39ccb94;p=xboard.git diff --git a/winboard/wevalgraph.c b/winboard/wevalgraph.c index 21fd1e4..ec57ab3 100644 --- a/winboard/wevalgraph.c +++ b/winboard/wevalgraph.c @@ -1,5 +1,5 @@ /* - * Evaluation graph + * wevalgraph.c - Evaluation graph front-end part * * Author: Alessandro Scotti (Dec 2005) * @@ -27,344 +27,22 @@ #include "config.h" -#include /* required for all Windows applications */ -//include +#include +#include +#include #include -//include -//include #include "common.h" #include "frontend.h" #include "backend.h" - -/* Module globals */ // used to communicate between back-end and front-end part -static ChessProgramStats_Move * currPvInfo; -static int currFirst = 0; -static int currLast = 0; -static int currCurrent = -1; - -static int nWidthPB = 0; -static int nHeightPB = 0; - -static int MarginX = 18; -static int MarginW = 4; -static int MarginH = 4; - -#define MIN_HIST_WIDTH 4 -#define MAX_HIST_WIDTH 10 - -#define PEN_NONE 0 -#define PEN_BLACK 1 -#define PEN_DOTTED 2 -#define PEN_BLUEDOTTED 3 -#define PEN_BOLD 4 /* or 5 for black */ - -#define FILLED 1 -#define OPEN 0 - -// calls from back-end part into front-end -static void DrawSegment( int x, int y, int *lastX, int *lastY, int penType ); -void DrawRectangle( int left, int top, int right, int bottom, int side, int style ); -void DrawEvalText(char *buf, int cbBuf, int y); - - -// back-end -static void DrawLine( int x1, int y1, int x2, int y2, int penType ) -{ - DrawSegment( x1, y1, NULL, NULL, PEN_NONE ); - DrawSegment( x2, y2, NULL, NULL, penType ); -} - -// back-end -static void DrawLineEx( int x1, int y1, int x2, int y2, int penType ) -{ - int savX, savY; - DrawSegment( x1, y1, &savX, &savY, PEN_NONE ); - DrawSegment( x2, y2, NULL, NULL, penType ); - DrawSegment( savX, savY, NULL, NULL, PEN_NONE ); -} - -// back-end -static int GetPvScore( int index ) -{ - int score = currPvInfo[ index ].score; - - if( index & 1 ) score = -score; /* Flip score for black */ - - return score; -} - -// back-end -/* - For a centipawn value, this function returns the height of the corresponding - histogram, centered on the reference axis. - - Note: height can be negative! -*/ -static int GetValueY( int value ) -{ - if( value < -700 ) value = -700; - if( value > +700 ) value = +700; - - return (nHeightPB / 2) - (int)(value * (nHeightPB - 2*MarginH) / 1400.0); -} - -// the brush selection is made part of the DrawLine, by passing a style argument -// the wrapper for doing the text output makes this back-end -static void DrawAxisSegmentHoriz( int value, BOOL drawValue ) -{ - int y = GetValueY( value*100 ); - - if( drawValue ) { - char buf[MSG_SIZ], *b = buf; - - if( value > 0 ) *b++ = '+'; - sprintf(b, "%d", value); - - DrawEvalText(buf, strlen(buf), y); - } - // [HGM] counts on DrawEvalText to have select transparent background for dotted line! - DrawLine( MarginX, y, MarginX + MarginW, y, PEN_BLACK ); // Y-axis tick marks - DrawLine( MarginX + MarginW, y, nWidthPB - MarginW, y, PEN_DOTTED ); // hor grid -} - -// The DrawLines again must select their own brush. -// the initial brush selection is useless? BkMode needed for dotted line and text -static void DrawAxis() -{ - int cy = nHeightPB / 2; - -// SelectObject( hdcPB, GetStockObject(NULL_BRUSH) ); - -// SetBkMode( hdcPB, TRANSPARENT ); - - DrawAxisSegmentHoriz( +5, TRUE ); - DrawAxisSegmentHoriz( +3, FALSE ); - DrawAxisSegmentHoriz( +1, FALSE ); - DrawAxisSegmentHoriz( 0, TRUE ); - DrawAxisSegmentHoriz( -1, FALSE ); - DrawAxisSegmentHoriz( -3, FALSE ); - DrawAxisSegmentHoriz( -5, TRUE ); - - DrawLine( MarginX + MarginW, cy, nWidthPB - MarginW, cy, PEN_BLACK ); // x-axis - DrawLine( MarginX + MarginW, MarginH, MarginX + MarginW, nHeightPB - MarginH, PEN_BLACK ); // y-axis -} - -// back-end -static void DrawHistogram( int x, int y, int width, int value, int side ) -{ - int left, top, right, bottom; - - if( value > -25 && value < +25 ) return; - - left = x; - right = left + width + 1; - - if( value > 0 ) { - top = GetValueY( value ); - bottom = y+1; - } - else { - top = y; - bottom = GetValueY( value ) + 1; - } - - - if( width == MIN_HIST_WIDTH ) { - right--; - DrawRectangle( left, top, right, bottom, side, FILLED ); - } - else { - DrawRectangle( left, top, right, bottom, side, OPEN ); - } -} - -// back-end -static void DrawSeparator( int index, int x ) -{ - if( index > 0 ) { - if( index == currCurrent ) { - DrawLineEx( x, MarginH, x, nHeightPB - MarginH, PEN_BLUEDOTTED ); - } - else if( (index % 20) == 0 ) { - DrawLineEx( x, MarginH, x, nHeightPB - MarginH, PEN_DOTTED ); - } - } -} - -// made back-end by replacing MoveToEx and LineTo by DrawSegment -/* Actually draw histogram as a diagram, cause there's too much data */ -static void DrawHistogramAsDiagram( int cy, int paint_width, int hist_count ) -{ - double step; - int i; - - /* Rescale the graph every few moves (as opposed to every move) */ - hist_count -= hist_count % 8; - hist_count += 8; - hist_count /= 2; - - step = (double) paint_width / (hist_count + 1); - - for( i=0; i<2; i++ ) { - int index = currFirst; - int side = (currCurrent + i + 1) & 1; /* Draw current side last */ - double x = MarginX + MarginW; - - if( (index & 1) != side ) { - x += step / 2; - index++; - } - - DrawSegment( (int) x, cy, NULL, NULL, PEN_NONE ); - - index += 2; - - while( index < currLast ) { - x += step; - - DrawSeparator( index, (int) x ); - - /* Extend line up to current point */ - if( currPvInfo[index].depth > 0 ) { - DrawSegment((int) x, GetValueY( GetPvScore(index) ), NULL, NULL, PEN_BOLD + side ); - } - - index += 2; - } - } -} - -// back-end, delete pen selection -static void DrawHistogramFull( int cy, int hist_width, int hist_count ) -{ - int i; - -// SelectObject( hdcPB, GetStockObject(BLACK_PEN) ); - - for( i=0; i 0 ) { - DrawHistogram( x, cy, hist_width, GetPvScore(index), index & 1 ); - } - } -} - -typedef struct { - int cy; - int hist_width; - int hist_count; - int paint_width; -} VisualizationData; - -// back-end -static Boolean InitVisualization( VisualizationData * vd ) -{ - BOOL result = FALSE; - - vd->cy = nHeightPB / 2; - vd->hist_width = MIN_HIST_WIDTH; - vd->hist_count = currLast - currFirst; - vd->paint_width = nWidthPB - MarginX - 2*MarginW; - - if( vd->hist_count > 0 ) { - result = TRUE; - - /* Compute width */ - vd->hist_width = vd->paint_width / vd->hist_count; - - if( vd->hist_width > MAX_HIST_WIDTH ) vd->hist_width = MAX_HIST_WIDTH; - - vd->hist_width -= vd->hist_width % 2; - } - - return result; -} - -// back-end -static void DrawHistograms() -{ - VisualizationData vd; - - if( InitVisualization( &vd ) ) { - if( vd.hist_width < MIN_HIST_WIDTH ) { - DrawHistogramAsDiagram( vd.cy, vd.paint_width, vd.hist_count ); - } - else { - DrawHistogramFull( vd.cy, vd.hist_width, vd.hist_count ); - } - } -} - -// back-end -int GetMoveIndexFromPoint( int x, int y ) -{ - int result = -1; - int start_x = MarginX + MarginW; - VisualizationData vd; - - if( x >= start_x && InitVisualization( &vd ) ) { - /* Almost an hack here... we duplicate some of the paint logic */ - if( vd.hist_width < MIN_HIST_WIDTH ) { - double step; - - vd.hist_count -= vd.hist_count % 8; - vd.hist_count += 8; - vd.hist_count /= 2; - - step = (double) vd.paint_width / (vd.hist_count + 1); - step /= 2; - - result = (int) (0.5 + (double) (x - start_x) / step); - } - else { - result = (x - start_x) / vd.hist_width; - } - } - - if( result >= currLast ) { - result = -1; - } - - return result; -} - -// init and display part split of so they can be moved to front end -void PaintEvalGraph( void ) -{ - /* Draw */ - DrawRectangle(0, 0, nWidthPB, nHeightPB, 2, FILLED); - DrawAxis(); - DrawHistograms(); -} - -// ------------------------------------------ front-end starts here ---------------------------------------------- - -#include -#include - #include "winboard.h" +#include "evalgraph.h" #include "wsnap.h" #define WM_REFRESH_GRAPH (WM_USER + 1) -// calls of front-end part into back-end part -extern int GetMoveIndexFromPoint( int x, int y ); -extern void PaintEvalGraph( void ); - -/* Imports from winboard.c */ -static BOOLEAN evalGraphDialogUp; // should be back-end, really - -extern HINSTANCE hInst; -extern HWND hwndMain; - -extern WindowPlacement wpEvalGraph; +/* Module globals */ +static BOOLEAN evalGraphDialogUp; static COLORREF crWhite = RGB( 0xFF, 0xFF, 0xB0 ); static COLORREF crBlack = RGB( 0xAD, 0x5D, 0x3D ); @@ -380,7 +58,7 @@ Boolean EvalGraphIsUp() } // [HGM] front-end, added as wrapper to avoid use of LineTo and MoveToEx in other routines (so they can be back-end) -static void DrawSegment( int x, int y, int *lastX, int *lastY, int penType ) +void DrawSegment( int x, int y, int *lastX, int *lastY, int penType ) { POINT stPt; if(penType == PEN_NONE) MoveToEx( hdcPB, x, y, &stPt ); else { @@ -633,4 +311,3 @@ VOID EvalGraphSet( int first, int last, int current, ChessProgramStats_Move * pv SendMessage( evalGraphDialog, WM_REFRESH_GRAPH, 0, 0 ); } } -