X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=winboard%2Fwevalgraph.c;h=3f1f07644849c018370fed2316b85a2567b857ef;hb=5cab485d7a39f1b15558fc3b06d57d2164a7dc5d;hp=2efb15e9d45c74b1edf4b6ca9b0fb4361889d37d;hpb=2380bd9a886c088ba6040d99932c20cdf080fbbb;p=xboard.git diff --git a/winboard/wevalgraph.c b/winboard/wevalgraph.c index 2efb15e..3f1f076 100644 --- a/winboard/wevalgraph.c +++ b/winboard/wevalgraph.c @@ -1,620 +1,325 @@ -/* - * Evaluation graph - * - * Author: Alessandro Scotti - * - * ------------------------------------------------------------------------ - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * ------------------------------------------------------------------------ - */ -#include "config.h" - -#include /* required for all Windows applications */ -#include -#include -#include -#include -#include -#include - -#include "common.h" -#include "winboard.h" -#include "frontend.h" -#include "backend.h" - -#include "wsnap.h" - -VOID EvalGraphSet( int first, int last, int current, ChessProgramStats_Move * pvInfo ); -VOID EvalGraphPopUp(); -VOID EvalGraphPopDown(); -BOOL EvalGraphIsUp(); - -#define WM_REFRESH_GRAPH (WM_USER + 1) - -/* Imports from backend.c */ -char * SavePart(char *str); - -/* Imports from winboard.c */ -extern HWND evalGraphDialog; -extern BOOLEAN evalGraphDialogUp; - -extern HINSTANCE hInst; -extern HWND hwndMain; - -extern WindowPlacement wpEvalGraph; - -/* Module globals */ -static ChessProgramStats_Move * currPvInfo; -static int currFirst = 0; -static int currLast = 0; -static int currCurrent = -1; - -static COLORREF crWhite = RGB( 0xFF, 0xFF, 0xB0 ); -static COLORREF crBlack = RGB( 0xAD, 0x5D, 0x3D ); - -static HDC hdcPB = NULL; -static HBITMAP hbmPB = NULL; -static int nWidthPB = 0; -static int nHeightPB = 0; -static HPEN hpenDotted = NULL; -static HPEN hpenBlueDotted = NULL; -static HPEN hpenBold[2] = { NULL, NULL }; -static HBRUSH hbrHist[2] = { NULL, NULL }; - -static int MarginX = 18; -static int MarginW = 4; -static int MarginH = 4; - -#define MIN_HIST_WIDTH 4 -#define MAX_HIST_WIDTH 10 - -static int GetPvScore( int index ) -{ - int score = currPvInfo[ index ].score; - - if( index & 1 ) score = -score; /* Flip score for black */ - - return score; -} - -static VOID DrawLine( int x1, int y1, int x2, int y2 ) -{ - MoveToEx( hdcPB, x1, y1, NULL ); - - LineTo( hdcPB, x2, y2 ); -} - -static VOID DrawLineEx( int x1, int y1, int x2, int y2 ) -{ - POINT stPT; - - MoveToEx( hdcPB, x1, y1, &stPT ); - - LineTo( hdcPB, x2, y2 ); - - MoveToEx( hdcPB, stPT.x, stPT.y, NULL ); -} - -static HBRUSH CreateBrush( UINT style, COLORREF color ) -{ - LOGBRUSH stLB; - - stLB.lbStyle = style; - stLB.lbColor = color; - stLB.lbHatch = 0; - - return CreateBrushIndirect( &stLB ); -} - -/* - 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); -} - -static VOID DrawAxisSegmentHoriz( int value, BOOL drawValue ) -{ - int y = GetValueY( value*100 ); - - SelectObject( hdcPB, GetStockObject(BLACK_PEN) ); - DrawLine( MarginX, y, MarginX + MarginW, y ); - SelectObject( hdcPB, hpenDotted ); - DrawLine( MarginX + MarginW, y, nWidthPB - MarginW, y ); - - if( drawValue ) { - SIZE stSize; - char buf[8]; - int cbBuf; - - if( value > 0 ) { - buf[0] = '+'; - itoa( value, buf+1, 10 ); - } - else { - itoa( value, buf, 10 ); - } - - cbBuf = strlen( buf ); - - GetTextExtentPoint32( hdcPB, buf, cbBuf, &stSize ); - - TextOut( hdcPB, MarginX - stSize.cx - 2, y - stSize.cy / 2, buf, cbBuf ); - } -} - -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 ); - - SelectObject( hdcPB, GetStockObject(BLACK_PEN) ); - - DrawLine( MarginX + MarginW, cy, nWidthPB - MarginW, cy ); - DrawLine( MarginX + MarginW, MarginH, MarginX + MarginW, nHeightPB - MarginH ); -} - -static VOID DrawHistogram( int x, int y, int width, int value, int side ) -{ - RECT rc; - - if( value > -25 && value < +25 ) return; - - rc.left = x; - rc.right = rc.left + width + 1; - - if( value > 0 ) { - rc.top = GetValueY( value ); - rc.bottom = y+1; - } - else { - rc.top = y; - rc.bottom = GetValueY( value ) + 1; - } - - - if( width == MIN_HIST_WIDTH ) { - rc.right--; - FillRect( hdcPB, &rc, hbrHist[side] ); - } - else { - SelectObject( hdcPB, hbrHist[side] ); - Rectangle( hdcPB, rc.left, rc.top, rc.right, rc.bottom ); - } -} - -static VOID DrawSeparator( int index, int x ) -{ - if( index > 0 ) { - if( index == currCurrent ) { - HPEN hp = SelectObject( hdcPB, hpenBlueDotted ); - DrawLineEx( x, MarginH, x, nHeightPB - MarginH ); - SelectObject( hdcPB, hp ); - } - else if( (index % 20) == 0 ) { - HPEN hp = SelectObject( hdcPB, hpenDotted ); - DrawLineEx( x, MarginH, x, nHeightPB - MarginH ); - SelectObject( hdcPB, hp ); - } - } -} - -/* 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++; - } - - SelectObject( hdcPB, hpenBold[side] ); - - MoveToEx( hdcPB, (int) x, cy, NULL ); - - index += 2; - - while( index < currLast ) { - x += step; - - DrawSeparator( index, (int) x ); - - /* Extend line up to current point */ - if( currPvInfo[index].depth > 0 ) { - LineTo( hdcPB, (int) x, GetValueY( GetPvScore(index) ) ); - } - - index += 2; - } - } -} - -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; - -static BOOL 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; -} - -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 ); - } - } -} - -static 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; -} - -static VOID DrawBackground() -{ - HBRUSH hbr; - RECT rc; - - hbr = CreateBrush( BS_SOLID, GetSysColor( COLOR_3DFACE ) ); - - rc.left = 0; - rc.top = 0; - rc.right = nWidthPB; - rc.bottom = nHeightPB; - - FillRect( hdcPB, &rc, hbr ); - - DeleteObject( hbr ); -} - -static VOID PaintEvalGraph( HWND hWnd, HDC hDC ) -{ - RECT rcClient; - int width; - int height; - - /* Get client area */ - GetClientRect( hWnd, &rcClient ); - - width = rcClient.right - rcClient.left; - height = rcClient.bottom - rcClient.top; - - /* Create or recreate paint box if needed */ - if( hbmPB == NULL || width != nWidthPB || height != nHeightPB ) { - if( hpenDotted == NULL ) { - hpenDotted = CreatePen( PS_DOT, 0, RGB(0xA0,0xA0,0xA0) ); - hpenBlueDotted = CreatePen( PS_DOT, 0, RGB(0x00,0x00,0xFF) ); - hpenBold[0] = CreatePen( PS_SOLID, 2, crWhite ); - hpenBold[1] = CreatePen( PS_SOLID, 2, crBlack ); - hbrHist[0] = CreateBrush( BS_SOLID, crWhite ); - hbrHist[1] = CreateBrush( BS_SOLID, crBlack ); - } - - if( hdcPB != NULL ) { - DeleteDC( hdcPB ); - hdcPB = NULL; - } - - if( hbmPB != NULL ) { - DeleteObject( hbmPB ); - hbmPB = NULL; - } - - hdcPB = CreateCompatibleDC( hDC ); - - nWidthPB = width; - nHeightPB = height; - hbmPB = CreateCompatibleBitmap( hDC, nWidthPB, nHeightPB ); - - SelectObject( hdcPB, hbmPB ); - } - - /* Draw */ - DrawBackground(); - DrawAxis(); - DrawHistograms(); - - /* Copy bitmap into destination DC */ - BitBlt( hDC, 0, 0, width, height, hdcPB, 0, 0, SRCCOPY ); -} - -LRESULT CALLBACK EvalGraphProc( HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam ) -{ - static SnapData sd; - - PAINTSTRUCT stPS; - HDC hDC; - - switch (message) { - case WM_INITDIALOG: - if( evalGraphDialog == NULL ) { - evalGraphDialog = hDlg; - - RestoreWindowPlacement( hDlg, &wpEvalGraph ); /* Restore window placement */ - } - - return FALSE; - - case WM_COMMAND: - switch (LOWORD(wParam)) { - case IDOK: - EndDialog(hDlg, TRUE); - return TRUE; - - case IDCANCEL: - EndDialog(hDlg, FALSE); - return TRUE; - - default: - break; - } - - break; - - case WM_ERASEBKGND: - return TRUE; - - case WM_PAINT: - hDC = BeginPaint( hDlg, &stPS ); - PaintEvalGraph( hDlg, hDC ); - EndPaint( hDlg, &stPS ); - break; - - case WM_REFRESH_GRAPH: - hDC = GetDC( hDlg ); - PaintEvalGraph( hDlg, hDC ); - ReleaseDC( hDlg, hDC ); - break; - - case WM_LBUTTONDBLCLK: - if( wParam == 0 || wParam == MK_LBUTTON ) { - int index = GetMoveIndexFromPoint( LOWORD(lParam), HIWORD(lParam) ); - - if( index >= 0 && index < currLast ) { - ToNrEvent( index + 1 ); - } - } - return TRUE; - - case WM_SIZE: - InvalidateRect( hDlg, NULL, FALSE ); - break; - - case WM_GETMINMAXINFO: - { - MINMAXINFO * mmi = (MINMAXINFO *) lParam; - - mmi->ptMinTrackSize.x = 100; - mmi->ptMinTrackSize.y = 100; - } - break; - - /* Support for captionless window */ -#if 0 - case WM_NCLBUTTONDBLCLK: - if( wParam == HTCAPTION ) { - int index; - POINT mouse_xy; - POINTS pts = MAKEPOINTS(lParam); - - mouse_xy.x = pts.x; - mouse_xy.y = pts.y; - ScreenToClient( hDlg, &mouse_xy ); - - index = GetMoveIndexFromPoint( mouse_xy.x, mouse_xy.y ); - - if( index >= 0 && index < currLast ) { - ToNrEvent( index + 1 ); - } - } - break; - - case WM_NCHITTEST: - { - LRESULT res = DefWindowProc( hDlg, message, wParam, lParam ); - - if( res == HTCLIENT ) res = HTCAPTION; - - SetWindowLong( hDlg, DWL_MSGRESULT, res ); - - return TRUE; - } - break; -#endif - - case WM_CLOSE: - EvalGraphPopDown(); - break; - - case WM_ENTERSIZEMOVE: - return OnEnterSizeMove( &sd, hDlg, wParam, lParam ); - - case WM_SIZING: - return OnSizing( &sd, hDlg, wParam, lParam ); - - case WM_MOVING: - return OnMoving( &sd, hDlg, wParam, lParam ); - - case WM_EXITSIZEMOVE: - return OnExitSizeMove( &sd, hDlg, wParam, lParam ); - } - - return FALSE; -} - -VOID EvalGraphPopUp() -{ - FARPROC lpProc; - - CheckMenuItem(GetMenu(hwndMain), IDM_ShowEvalGraph, MF_CHECKED); - - if( evalGraphDialog ) { - SendMessage( evalGraphDialog, WM_INITDIALOG, 0, 0 ); - - if( ! evalGraphDialogUp ) { - ShowWindow(evalGraphDialog, SW_SHOW); - } - } - else { - crWhite = appData.evalHistColorWhite; - crBlack = appData.evalHistColorBlack; - - lpProc = MakeProcInstance( (FARPROC) EvalGraphProc, hInst ); - - /* Note to self: dialog must have the WS_VISIBLE style set, otherwise it's not shown! */ - CreateDialog( hInst, MAKEINTRESOURCE(DLG_EvalGraph), hwndMain, (DLGPROC)lpProc ); - - FreeProcInstance(lpProc); - } - - evalGraphDialogUp = TRUE; -} - -VOID EvalGraphPopDown() -{ - CheckMenuItem(GetMenu(hwndMain), IDM_ShowEvalGraph, MF_UNCHECKED); - - if( evalGraphDialog ) { - ShowWindow(evalGraphDialog, SW_HIDE); - } - - evalGraphDialogUp = FALSE; -} - -VOID EvalGraphSet( int first, int last, int current, ChessProgramStats_Move * pvInfo ) -{ - /* [AS] Danger! For now we rely on the pvInfo parameter being a static variable! */ - - currFirst = first; - currLast = last; - currCurrent = current; - currPvInfo = pvInfo; - - if( evalGraphDialog ) { - SendMessage( evalGraphDialog, WM_REFRESH_GRAPH, 0, 0 ); - } -} - -BOOL EvalGraphIsUp() -{ - return evalGraphDialogUp; -} +/* + * wevalgraph.c - Evaluation graph front-end part + * + * Author: Alessandro Scotti (Dec 2005) + * + * Copyright 2005 Alessandro Scotti + * + * Enhancements Copyright 2009, 2010, 2011, 2012, 2013, 2014, 2015, + * 2016 Free Software Foundation, Inc. + * + * ------------------------------------------------------------------------ + * + * GNU XBoard is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or (at + * your option) any later version. + * + * GNU XBoard is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see http://www.gnu.org/licenses/. * + * + *------------------------------------------------------------------------ + ** See the file ChangeLog for a revision history. */ + +// code refactored by HGM to obtain front-end / back-end separation + +#include "config.h" + +#include +#include +#include +#include + +#include "common.h" +#include "frontend.h" +#include "backend.h" +#include "winboard.h" +#include "evalgraph.h" +#include "wsnap.h" + +#define WM_REFRESH_GRAPH (WM_USER + 1) + +/* Module globals */ +static BOOLEAN evalGraphDialogUp; + +static COLORREF crWhite = RGB( 0xFF, 0xFF, 0xB0 ); +static COLORREF crBlack = RGB( 0xAD, 0x5D, 0x3D ); + +static HDC hdcPB = NULL; +static HBITMAP hbmPB = NULL; +static HPEN pens[PEN_ANY+1]; // [HGM] put all pens in one array +static HBRUSH hbrHist[3] = { NULL, NULL, NULL }; + +Boolean EvalGraphIsUp() +{ + return evalGraphDialogUp; +} + +// [HGM] front-end, added as wrapper to avoid use of LineTo and MoveToEx in other routines (so they can be back-end) +void DrawSegment( int x, int y, int *lastX, int *lastY, int penType ) +{ + POINT stPt; + if(penType == PEN_NONE) MoveToEx( hdcPB, x, y, &stPt ); else { + HPEN hp = SelectObject( hdcPB, pens[penType] ); + LineTo( hdcPB, x, y ); + SelectObject( hdcPB, hp ); + } + if(lastX != NULL) { *lastX = stPt.x; *lastY = stPt.y; } +} + +// front-end wrapper for drawing functions to do rectangles +void DrawRectangle( int left, int top, int right, int bottom, int side, int style ) +{ + HPEN hp = SelectObject( hdcPB, pens[PEN_BLACK] ); + RECT rc; + + rc.top = top; rc.left = left; rc.bottom = bottom; rc.right = right; + if(style == FILLED) + FillRect( hdcPB, &rc, hbrHist[side] ); + else { + SelectObject( hdcPB, hbrHist[side] ); + Rectangle( hdcPB, left, top, right, bottom ); + } + SelectObject( hdcPB, hp ); +} + +// front-end wrapper for putting text in graph +void DrawEvalText(char *buf, int cbBuf, int y) +{ + SIZE stSize; + SetBkMode( hdcPB, TRANSPARENT ); + GetTextExtentPoint32( hdcPB, buf, cbBuf, &stSize ); + TextOut( hdcPB, MarginX - stSize.cx - 2, y - stSize.cy / 2, buf, cbBuf ); +} + +// front-end +static HBRUSH CreateBrush( UINT style, COLORREF color ) +{ + LOGBRUSH stLB; + + stLB.lbStyle = style; + stLB.lbColor = color; + stLB.lbHatch = 0; + + return CreateBrushIndirect( &stLB ); +} + +// front-end. Create pens, device context and buffer bitmap for global use, copy result to display +// The back-end part n the middle has been taken out and moed to PainEvalGraph() +static VOID DisplayEvalGraph( HWND hWnd, HDC hDC ) +{ + RECT rcClient; + int width; + int height; + + /* Get client area */ + GetClientRect( hWnd, &rcClient ); + + width = rcClient.right - rcClient.left; + height = rcClient.bottom - rcClient.top; + + /* Create or recreate paint box if needed */ + if( hbmPB == NULL || width != nWidthPB || height != nHeightPB ) { + if( pens[PEN_DOTTED] == NULL ) { + pens[PEN_BLACK] = GetStockObject(BLACK_PEN); + pens[PEN_DOTTED] = CreatePen( PS_DOT, 0, RGB(0xA0,0xA0,0xA0) ); + pens[PEN_BLUEDOTTED] = CreatePen( PS_DOT, 0, RGB(0x00,0x00,0xFF) ); + pens[PEN_BOLDWHITE] = CreatePen( PS_SOLID, 2, crWhite ); + pens[PEN_BOLDBLACK] = CreatePen( PS_SOLID, 2, crBlack ); + hbrHist[0] = CreateBrush( BS_SOLID, crWhite ); + hbrHist[1] = CreateBrush( BS_SOLID, crBlack ); + hbrHist[2] = CreateBrush( BS_SOLID, GetSysColor( COLOR_3DFACE ) ); // background + } + + if( hdcPB != NULL ) { + DeleteDC( hdcPB ); + hdcPB = NULL; + } + + if( hbmPB != NULL ) { + DeleteObject( hbmPB ); + hbmPB = NULL; + } + + hdcPB = CreateCompatibleDC( hDC ); + + nWidthPB = width; + nHeightPB = height; + hbmPB = CreateCompatibleBitmap( hDC, nWidthPB, nHeightPB ); + + SelectObject( hdcPB, hbmPB ); + } + + // back-end painting; calls back front-end primitives for lines, rectangles and text + PaintEvalGraph(); + SetWindowText(hWnd, MakeEvalTitle(differentialView ? T_("Blunder Graph") : T_("Evaluation Graph"))); + + /* Copy bitmap into destination DC */ + BitBlt( hDC, 0, 0, nWidthPB, nHeightPB, hdcPB, 0, 0, SRCCOPY ); +} + +// Note: Once the eval graph is opened, this window-proc lives forever; een closing the +// eval-graph window merely hides it. On opening we re-initialize it, though, so it could +// as well hae been destroyed. While it is open it processes the REFRESH_GRAPH commands. +LRESULT CALLBACK EvalGraphProc( HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam ) +{ + static SnapData sd; + + PAINTSTRUCT stPS; + HDC hDC; + + switch (message) { + case WM_INITDIALOG: + Translate(hDlg, DLG_EvalGraph); + if( evalGraphDialog == NULL ) { + evalGraphDialog = hDlg; + + RestoreWindowPlacement( hDlg, &wpEvalGraph ); /* Restore window placement */ + } + + return FALSE; + + case WM_COMMAND: + switch (LOWORD(wParam)) { + case IDOK: + EndDialog(hDlg, TRUE); + return TRUE; + + case IDCANCEL: + EndDialog(hDlg, FALSE); + return TRUE; + + default: + break; + } + + break; + + case WM_ERASEBKGND: + return TRUE; + + case WM_PAINT: + hDC = BeginPaint( hDlg, &stPS ); + DisplayEvalGraph( hDlg, hDC ); + EndPaint( hDlg, &stPS ); + break; + + case WM_MOUSEWHEEL: + if((short)HIWORD(wParam) < 0) appData.zoom++; + if((short)HIWORD(wParam) > 0 && appData.zoom > 1) appData.zoom--; + goto paint; + case WM_RBUTTONDOWN: + differentialView = !differentialView; + case WM_REFRESH_GRAPH: + paint: + hDC = GetDC( hDlg ); + DisplayEvalGraph( hDlg, hDC ); + ReleaseDC( hDlg, hDC ); + break; + + case WM_LBUTTONDOWN: + if( wParam == 0 || wParam == MK_LBUTTON ) { + int index = GetMoveIndexFromPoint( LOWORD(lParam), HIWORD(lParam) ); + + if( index >= 0 && index < currLast ) { + ToNrEvent( index + 1 ); + } + } + return TRUE; + + case WM_SIZE: + InvalidateRect( hDlg, NULL, FALSE ); + break; + + case WM_GETMINMAXINFO: + { + MINMAXINFO * mmi = (MINMAXINFO *) lParam; + + mmi->ptMinTrackSize.x = 100; + mmi->ptMinTrackSize.y = 100; + } + break; + + /* Support for captionless window */ + case WM_CLOSE: + EvalGraphPopDown(); + break; + + case WM_ENTERSIZEMOVE: + return OnEnterSizeMove( &sd, hDlg, wParam, lParam ); + + case WM_SIZING: + return OnSizing( &sd, hDlg, wParam, lParam ); + + case WM_MOVING: + return OnMoving( &sd, hDlg, wParam, lParam ); + + case WM_EXITSIZEMOVE: + return OnExitSizeMove( &sd, hDlg, wParam, lParam ); + } + + return FALSE; +} + +// creates the eval graph, or unhides it. +VOID EvalGraphPopUp() +{ + FARPROC lpProc; + + CheckMenuItem(GetMenu(hwndMain), IDM_ShowEvalGraph, MF_CHECKED); + + if( evalGraphDialog ) { + SendMessage( evalGraphDialog, WM_INITDIALOG, 0, 0 ); + + if( ! evalGraphDialogUp ) { + ShowWindow(evalGraphDialog, SW_SHOW); + } + } + else { + crWhite = appData.evalHistColorWhite; + crBlack = appData.evalHistColorBlack; + + lpProc = MakeProcInstance( (FARPROC) EvalGraphProc, hInst ); + + /* Note to self: dialog must have the WS_VISIBLE style set, otherwise it's not shown! */ + CreateDialog( hInst, MAKEINTRESOURCE(DLG_EvalGraph), hwndMain, (DLGPROC)lpProc ); + + FreeProcInstance(lpProc); + } + + evalGraphDialogUp = TRUE; +} + +// Note that this hides the window. It could as well have destroyed it. +VOID EvalGraphPopDown() +{ + CheckMenuItem(GetMenu(hwndMain), IDM_ShowEvalGraph, MF_UNCHECKED); + + if( evalGraphDialog ) { + ShowWindow(evalGraphDialog, SW_HIDE); + } + + evalGraphDialogUp = FALSE; +} + +// This function is the interface to the back-end. It is currently called through the front-end, +// though, where it shares the HistorySet() wrapper with MoveHistorySet(). Once all front-ends +// support the eval graph, it would be more logical to call it directly from the back-end. +VOID EvalGraphSet( int first, int last, int current, ChessProgramStats_Move * pvInfo ) +{ + /* [AS] Danger! For now we rely on the pvInfo parameter being a static variable! */ + + currFirst = first; + currLast = last; + currCurrent = current; + currPvInfo = pvInfo; + + if( evalGraphDialog ) { + SendMessage( evalGraphDialog, WM_REFRESH_GRAPH, 0, 0 ); + } +}