+++ /dev/null
-/*
- * draw.c -- drawing routines for XBoard
- *
- * Copyright 1991 by Digital Equipment Corporation, Maynard,
- * Massachusetts.
- *
- * Enhancements Copyright 1992-2001, 2002, 2003, 2004, 2005, 2006,
- * 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free
- * Software Foundation, Inc.
- *
- * The following terms apply to Digital Equipment Corporation's copyright
- * interest in XBoard:
- * ------------------------------------------------------------------------
- * All Rights Reserved
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted,
- * provided that the above copyright notice appear in all copies and that
- * both that copyright notice and this permission notice appear in
- * supporting documentation, and that the name of Digital not be
- * used in advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- *
- * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
- * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
- * DIGITAL 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.
- * ------------------------------------------------------------------------
- *
- * The following terms apply to the enhanced version of XBoard
- * distributed by the Free Software Foundation:
- * ------------------------------------------------------------------------
- *
- * 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. */
-
-#include "config.h"
-
-#include <stdio.h>
-#include <math.h>
-#include <cairo/cairo.h>
-#include <librsvg/rsvg.h>
-#include <librsvg/rsvg-cairo.h>
-#include <pango/pangocairo.h>
-
-#if STDC_HEADERS
-# include <stdlib.h>
-# include <string.h>
-#else /* not STDC_HEADERS */
-extern char *getenv();
-# if HAVE_STRING_H
-# include <string.h>
-# else /* not HAVE_STRING_H */
-# include <strings.h>
-# endif /* not HAVE_STRING_H */
-#endif /* not STDC_HEADERS */
-
-#if ENABLE_NLS
-#include <locale.h>
-#endif
-
-#include "common.h"
-
-#include "backend.h"
-#include "board.h"
-#include "menus.h"
-#include "dialogs.h"
-#include "evalgraph.h"
-#include "gettext.h"
-#include "draw.h"
-
-
-#ifdef __EMX__
-#ifndef HAVE_USLEEP
-#define HAVE_USLEEP
-#endif
-#define usleep(t) _sleep2(((t)+500)/1000)
-#endif
-
-#ifdef ENABLE_NLS
-# define _(s) gettext (s)
-# define N_(s) gettext_noop (s)
-#else
-# define _(s) (s)
-# define N_(s) s
-#endif
-
-#define SOLID 0
-#define OUTLINE 1
-Boolean cairoAnimate;
-Option *currBoard;
-cairo_surface_t *csBoardWindow;
-static cairo_surface_t *pngPieceImages[2][(int)BlackPawn]; // png 256 x 256 images
-static cairo_surface_t *pngPieceBitmaps[2][(int)BlackPawn]; // scaled pieces as used
-static cairo_surface_t *pngPieceBitmaps2[2][(int)BlackPawn]; // scaled pieces in store
-static RsvgHandle *svgPieces[2][(int)BlackPawn]; // vector pieces in store
-static cairo_surface_t *pngBoardBitmap[2], *pngOriginalBoardBitmap[2];
-int useTexture, textureW[2], textureH[2];
-
-#define pieceToSolid(piece) &pieceBitmap[SOLID][(piece) % (int)BlackPawn]
-#define pieceToOutline(piece) &pieceBitmap[OUTLINE][(piece) % (int)BlackPawn]
-
-#define White(piece) ((int)(piece) < (int)BlackPawn)
-
-char svgDir[MSG_SIZ] = SVGDIR;
-
-char *crWhite = "#FFFFB0";
-char *crBlack = "#AD5D3D";
-
-struct {
- int x1, x2, y1, y2;
-} gridSegments[BOARD_RANKS + BOARD_FILES + 2];
-
-void
-SwitchWindow (int main)
-{
- currBoard = (main ? &mainOptions[W_BOARD] : &dualOptions[3]);
-// CsBoardWindow = DRAWABLE(currBoard);
-}
-
-
-static void
-NewCanvas (Option *graph)
-{
- cairo_t *cr;
- int w = graph->max, h = graph->value;
- if(graph->choice) cairo_surface_destroy((cairo_surface_t *) graph->choice);
- graph->choice = (char**) cairo_image_surface_create (CAIRO_FORMAT_ARGB32, w, h);
- // paint white, to prevent weirdness when people maximize window and drag pieces over space next to board
- cr = cairo_create ((cairo_surface_t *) graph->choice);
- cairo_rectangle (cr, 0, 0, w, h);
- cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0);
- cairo_fill(cr);
- cairo_destroy (cr);
- graph->min &= ~REPLACE;
-}
-
-static cairo_surface_t *
-CsBoardWindow (Option *opt)
-{ // test before every draw event if we need to resize the canvas
- if(opt->min & REPLACE) NewCanvas(opt);
- return DRAWABLE(opt);
-}
-
-
-void
-SelectPieces(VariantClass v)
-{
- int i;
- for(i=0; i<2; i++) {
- int p;
- for(p=0; p<=(int)WhiteKing; p++)
- pngPieceBitmaps[i][p] = pngPieceBitmaps2[i][p]; // defaults
- if(v == VariantShogi && BOARD_HEIGHT != 7) { // no exceptions in Tori Shogi
- pngPieceBitmaps[i][(int)WhiteCannon] = pngPieceBitmaps2[i][(int)WhiteTokin];
- pngPieceBitmaps[i][(int)WhiteNightrider] = pngPieceBitmaps2[i][(int)WhitePKnight];
- pngPieceBitmaps[i][(int)WhiteGrasshopper] = pngPieceBitmaps2[i][(int)WhitePLance];
- pngPieceBitmaps[i][(int)WhiteSilver] = pngPieceBitmaps2[i][(int)WhitePSilver];
- pngPieceBitmaps[i][(int)WhiteQueen] = pngPieceBitmaps2[i][(int)WhiteLance];
- pngPieceBitmaps[i][(int)WhiteFalcon] = pngPieceBitmaps2[i][(int)WhiteMonarch]; // for Sho Shogi
- }
-#ifdef GOTHIC
- if(v == VariantGothic) {
- pngPieceBitmaps[i][(int)WhiteMarshall] = pngPieceBitmaps2[i][(int)WhiteSilver];
- }
-#endif
- if(v == VariantSChess) {
- pngPieceBitmaps[i][(int)WhiteAngel] = pngPieceBitmaps2[i][(int)WhiteFalcon];
- pngPieceBitmaps[i][(int)WhiteMarshall] = pngPieceBitmaps2[i][(int)WhiteAlfil];
- }
- if(v == VariantChuChess) {
- pngPieceBitmaps[i][(int)WhiteNightrider] = pngPieceBitmaps2[i][(int)WhiteLion];
- }
- if(v == VariantChu) {
- pngPieceBitmaps[i][(int)WhiteNightrider] = pngPieceBitmaps2[i][(int)WhiteClaw];
- pngPieceBitmaps[i][(int)WhiteClaw] = pngPieceBitmaps2[i][(int)WhiteNightrider];
- pngPieceBitmaps[i][(int)WhiteUnicorn] = pngPieceBitmaps2[i][(int)WhiteCat];
- pngPieceBitmaps[i][(int)WhiteSilver] = pngPieceBitmaps2[i][(int)WhiteSword];
- pngPieceBitmaps[i][(int)WhiteFalcon] = pngPieceBitmaps2[i][(int)WhiteDagger];
- pngPieceBitmaps[i][(int)WhiteCat] = pngPieceBitmaps2[i][(int)WhiteUnicorn];
- pngPieceBitmaps[i][(int)WhiteSword] = pngPieceBitmaps2[i][(int)WhiteSilver];
- pngPieceBitmaps[i][(int)WhiteDagger] = pngPieceBitmaps2[i][(int)WhiteFalcon];
- pngPieceBitmaps[i][(int)WhiteMan] = pngPieceBitmaps2[i][(int)WhiteCopper];
- pngPieceBitmaps[i][(int)WhiteCopper] = pngPieceBitmaps2[i][(int)WhiteMan];
- pngPieceBitmaps[i][(int)WhiteAxe] = pngPieceBitmaps2[i][(int)WhiteCannon];
- pngPieceBitmaps[i][(int)WhiteCannon] = pngPieceBitmaps2[i][(int)WhiteAxe];
- }
- }
-}
-
-#define BoardSize int
-void
-InitDrawingSizes (BoardSize boardSize, int flags)
-{ // [HGM] resize is functional now, but for board format changes only (nr of ranks, files)
- int boardWidth, boardHeight;
- static int oldWidth, oldHeight;
- static VariantClass oldVariant;
- static int oldTwoBoards = 0, oldNrOfFiles = 0;
-
- if(!mainOptions[W_BOARD].handle) return;
-
- if(boardSize == -2 && gameInfo.variant != oldVariant
- && oldNrOfFiles && oldNrOfFiles != BOARD_WIDTH) { // called because variant switch changed board format
- squareSize = ((squareSize + lineGap) * oldNrOfFiles + 0.5*BOARD_WIDTH) / BOARD_WIDTH; // keep total width fixed
- if(appData.overrideLineGap < 0) lineGap = squareSize < 37 ? 1 : squareSize < 59 ? 2 : squareSize < 116 ? 3 : 4;
- squareSize -= lineGap;
- CreatePNGPieces();
- CreateGrid();
- }
- oldNrOfFiles = BOARD_WIDTH;
-
- if(oldTwoBoards && !twoBoards) PopDown(DummyDlg);
- oldTwoBoards = twoBoards;
-
- if(appData.overrideLineGap >= 0) lineGap = appData.overrideLineGap;
- boardWidth = lineGap + BOARD_WIDTH * (squareSize + lineGap);
- boardHeight = lineGap + BOARD_HEIGHT * (squareSize + lineGap);
-
- if(boardWidth != oldWidth || boardHeight != oldHeight) { // do resizing stuff only if size actually changed
-
- oldWidth = boardWidth; oldHeight = boardHeight;
- CreateGrid();
- CreateAnyPieces(0); // redo texture scaling
-
- /*
- * Inhibit shell resizing.
- */
- ResizeBoardWindow(boardWidth, boardHeight, 0);
-
- DelayedDrag();
- }
-
- // [HGM] pieces: tailor piece bitmaps to needs of specific variant
- // (only for xpm)
-
- if(gameInfo.variant != oldVariant) { // and only if variant changed
-
- SelectPieces(gameInfo.variant);
-
- oldVariant = gameInfo.variant;
- }
- CreateAnimVars();
-}
-
-void
-ExposeRedraw (Option *graph, int x, int y, int w, int h)
-{ // copy a selected part of the buffer bitmap to the display
- cairo_t *cr = cairo_create((cairo_surface_t *) graph->textValue);
- cairo_set_source_surface(cr, (cairo_surface_t *) graph->choice, 0, 0);
- cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);
- cairo_rectangle(cr, x, y, w, h);
- cairo_fill(cr);
- cairo_destroy(cr);
-}
-
-static int modV[2], modH[2];
-
-static void
-CreatePNGBoard (char *s, int kind)
-{
- float w, h;
- static float n[2] = { 1., 1. };
- if(!appData.useBitmaps || s == NULL || *s == 0 || *s == '*') { useTexture &= ~(kind+1); return; }
- textureW[kind] = 0; // prevents bitmap from being used if not succesfully loaded
- if(strstr(s, ".png")) {
- cairo_surface_t *img = cairo_image_surface_create_from_png (s);
- if(cairo_surface_status(img) == CAIRO_STATUS_SUCCESS) {
- char c, *p = s, *q;
- int r, f;
- if(pngOriginalBoardBitmap[kind]) cairo_surface_destroy(pngOriginalBoardBitmap[kind]);
- if(n[kind] != 1.) cairo_surface_destroy(pngBoardBitmap[kind]);
- useTexture |= kind + 1; pngOriginalBoardBitmap[kind] = img;
- w = textureW[kind] = cairo_image_surface_get_width (img);
- h = textureH[kind] = cairo_image_surface_get_height (img);
- n[kind] = 1.; modV[kind] = modH[kind] = -1;
- while((q = strchr(p+1, '-'))) p = q; // find last '-'
- if(strlen(p) < 11 && sscanf(p, "-%dx%d.pn%c", &f, &r, &c) == 3 && c == 'g') {
- if(f == 0 || r == 0) f = BOARD_WIDTH, r = BOARD_HEIGHT; // 0x0 means 'fits any', so make it fit
- textureW[kind] = (w*BOARD_WIDTH)/f; // sync cutting locations with square pattern
- textureH[kind] = (h*BOARD_HEIGHT)/r;
- n[kind] = r*squareSize/h; // scale to make it fit exactly vertically
- modV[kind] = r; modH[kind] = f;
- } else
- if((p = strstr(s, "xq")) && (p == s || p[-1] == '/')) { // assume full-board image for Xiangqi
- while(0.8*squareSize*BOARD_WIDTH > n[kind]*w || 0.8*squareSize*BOARD_HEIGHT > n[kind]*h) n[kind]++;
- } else {
- while(squareSize > n[kind]*w || squareSize > n[kind]*h) n[kind]++;
- }
- if(n[kind] == 1.) pngBoardBitmap[kind] = img; else {
- // create scaled-up copy of the raw png image when it was too small
- cairo_surface_t *cs = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, n[kind]*w, n[kind]*h);
- cairo_t *cr = cairo_create(cs);
- pngBoardBitmap[kind] = cs; textureW[kind] *= n[kind]; textureH[kind] *= n[kind];
-// cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);
- cairo_scale(cr, n[kind], n[kind]);
- cairo_set_source_surface (cr, img, 0, 0);
- cairo_paint (cr);
- cairo_destroy (cr);
- }
- }
- }
-}
-
-char *pngPieceNames[] = // must be in same order as internal piece encoding
-{ "Pawn", "Knight", "Bishop", "Rook", "Queen", "Advisor", "Elephant", "Archbishop", "Marshall", "Gold", "Commoner",
- "Canon", "Nightrider", "CrownedBishop", "CrownedRook", "Crown", "Chancellor", "Hawk", "Lance", "Cobra", "Unicorn", "Lion",
- "Sword", "Zebra", "Camel", "Tower", "Wolf", "Hat", "Duck", "Lance", "Dragon", "Gnu", "Cub",
- "LShield", "Pegasus", "Wizard", "Copper", "Iron", "Viking", "Flag", "Axe", "Dolphin", "Leopard", "Claw",
- "Left", "Butterfly", "PromoBishop", "PromoRook", "HCrown", "RShield", "Prince", "Phoenix", "Kylin", "Drunk", "Right",
- "GoldPawn", "GoldKnight", "PromoHorse", "PromoDragon", "GoldLance", "GoldSilver", "HSword", "PromoSword", "PromoHSword", "Princess", "King",
- NULL
-};
-
-char *backupPiece[] = { // pieces that map on other in default theme ("Crown" - "Drunk")
- "Princess", NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "Chancellor", NULL,
- NULL, "Knight", NULL, "Commoner", NULL, NULL, NULL, "Canon", NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, "King", "Queen", "Lion", "Elephant"
-};
-
-RsvgHandle *
-LoadSVG (char *dir, int color, int piece, int retry)
-{
- char buf[MSG_SIZ];
- RsvgHandle *svg=svgPieces[color][piece];
- RsvgDimensionData svg_dimensions;
- GError *svgerror=NULL;
- cairo_surface_t *img;
- cairo_t *cr;
- char *name = (retry ? backupPiece[piece - WhiteGrasshopper] : pngPieceNames[piece]);
-
- if(!name) return NULL;
-
- snprintf(buf, MSG_SIZ, "%s/%s%s.svg", dir, color ? "Black" : "White", name);
-
- if(!svg && *dir) {
- svg = rsvg_handle_new_from_file(buf, &svgerror);
- if(!svg) { // failed! If -pid name starts with "sub_" we try to load the piece from the parent directory
- char *p = buf, *q;
- safeStrCpy(buf, dir, MSG_SIZ);
- while((q = strchr(p, '/'))) p = q + 1;
- if(!strncmp(p, "sub_", 4)) {
- if(p == buf) safeStrCpy(buf, ".", MSG_SIZ); else p[-1] = NULLCHAR; // strip last directory off path
- return LoadSVG(buf, color, piece, retry);
- }
- }
- if(!svg && *appData.inscriptions) { // if there is no piece-specific SVG, but we make inscriptions, try general background
- snprintf(buf, MSG_SIZ, "%s/%sTile.svg", dir, color ? "Black" : "White");
- svg = rsvg_handle_new_from_file(buf, &svgerror);
- }
- }
-
- if(svg) {
- rsvg_handle_get_dimensions(svg, &svg_dimensions);
- img = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, squareSize, squareSize);
-
- cr = cairo_create(img);
- cairo_scale(cr, squareSize/(double) svg_dimensions.width, squareSize/(double) svg_dimensions.height);
- rsvg_handle_render_cairo(svg, cr);
- if(cairo_surface_status(img) == CAIRO_STATUS_SUCCESS) {
- if(pngPieceImages[color][piece]) cairo_surface_destroy(pngPieceImages[color][piece]);
- pngPieceImages[color][piece] = img;
- }
- cairo_destroy(cr);
-
- return svg;
- }
- if(!retry && piece >= WhiteGrasshopper && piece <= WhiteDrunk) // pieces that are only different in kanji sets
- return LoadSVG(dir, color, piece, 1);
- if(svgerror)
- g_error_free(svgerror);
- return NULL;
-}
-
-static void
-ScaleOnePiece (int color, int piece)
-{
- float w, h;
- char buf[MSG_SIZ];
- cairo_surface_t *img, *cs;
- cairo_t *cr;
-
- g_type_init ();
-
- svgPieces[color][piece] = LoadSVG("", color, piece, 0); // this fills pngPieceImages if we had cached svg with bitmap of wanted size
-
- if(!pngPieceImages[color][piece]) { // we don't have cached bitmap (implying we did not have cached svg)
- if(*appData.pieceDirectory) { // user specified piece directory
- snprintf(buf, MSG_SIZ, "%s/%s%s.png", appData.pieceDirectory, color ? "Black" : "White", pngPieceNames[piece]);
- img = cairo_image_surface_create_from_png (buf); // try if there are png pieces there
- if(cairo_surface_status(img) != CAIRO_STATUS_SUCCESS) { // there were not
- svgPieces[color][piece] = LoadSVG(appData.pieceDirectory, color, piece, 0); // so try if he has svg there
- } else pngPieceImages[color][piece] = img;
- }
- }
-
- if(!pngPieceImages[color][piece]) { // we still did not manage to acquire a piece bitmap
- static int warned = 0;
- if(!(svgPieces[color][piece] = LoadSVG(svgDir, color, piece, 0)) // try to fall back on installed svg
- && !warned && strcmp(pngPieceNames[piece], "Tile")) { // but do not complain about missing 'Tile'
- char *msg = _("No default pieces installed!\nSelect your own using '-pieceImageDirectory'.");
- printf("%s (%s)\n", msg, pngPieceNames[piece]); // give up
- DisplayError(msg, 0);
- warned = 1; // prevent error message being repeated for each piece type
- }
- }
-
- img = pngPieceImages[color][piece];
-
- // create new bitmap to hold scaled piece image (and remove any old)
- if(pngPieceBitmaps2[color][piece]) cairo_surface_destroy (pngPieceBitmaps2[color][piece]);
- pngPieceBitmaps2[color][piece] = cs = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, squareSize, squareSize);
-
- if(!img) return;
-
- // scaled copying of the raw png image
- cr = cairo_create(cs);
- w = cairo_image_surface_get_width (img);
- h = cairo_image_surface_get_height (img);
- cairo_scale(cr, squareSize/w, squareSize/h);
- cairo_set_source_surface (cr, img, 0, 0);
- cairo_paint (cr);
- cairo_destroy (cr);
-
- if(!appData.trueColors || !*appData.pieceDirectory) { // operate on bitmap to color it (king-size hack...)
- int stride = cairo_image_surface_get_stride(cs)/4;
- int *buf = (int *) cairo_image_surface_get_data(cs);
- int i, j, p;
- sscanf(color ? appData.blackPieceColor+1 : appData.whitePieceColor+1, "%x", &p); // replacement color
- cairo_surface_flush(cs);
- for(i=0; i<squareSize; i++) for(j=0; j<squareSize; j++) {
- int r, a;
- float f;
- unsigned int c = buf[i*stride + j];
- a = c >> 24; r = c >> 16 & 255; // alpha and red, where red is the 'white' weight, since white is #FFFFCC in the source images
- f = (color ? a - r : r)/255.; // fraction of black or white in the mix that has to be replaced
- buf[i*stride + j] = c & 0xFF000000; // alpha channel is kept at same opacity
- buf[i*stride + j] += ((int)(f*(p&0xFF0000)) & 0xFF0000) + ((int)(f*(p&0xFF00)) & 0xFF00) + (int)(f*(p&0xFF)); // add desired fraction of new color
- if(color) buf[i*stride + j] += r | r << 8 | r << 16; // details on black pieces get their weight added in pure white
- if(appData.monoMode) {
- if(a < 64) buf[i*stride + j] = 0; // if not opaque enough, totally transparent
- else if(2*r < a) buf[i*stride + j] = 0xFF000000; // if not light enough, totally black
- else buf[i*stride + j] = 0xFFFFFFFF; // otherwise white
- }
- }
- cairo_surface_mark_dirty(cs);
- }
-}
-
-void
-CreatePNGPieces ()
-{
- int p;
-
- for(p=0; pngPieceNames[p]; p++) {
- ScaleOnePiece(0, p);
- ScaleOnePiece(1, p);
- }
- SelectPieces(gameInfo.variant);
-}
-
-void
-CreateAnyPieces (int p)
-{ // [HGM] taken out of main
- if(p) CreatePNGPieces();
- CreatePNGBoard(appData.liteBackTextureFile, 1);
- CreatePNGBoard(appData.darkBackTextureFile, 0);
-}
-
-void
-InitDrawingParams (int reloadPieces)
-{
- int i, p;
- if(reloadPieces)
- for(i=0; i<2; i++) for(p=0; p<BlackPawn; p++) {
- if(pngPieceImages[i][p]) cairo_surface_destroy(pngPieceImages[i][p]);
- pngPieceImages[i][p] = NULL;
- if(svgPieces[i][p]) rsvg_handle_close(svgPieces[i][p], NULL);
- svgPieces[i][p] = NULL;
- }
- CreateAnyPieces(1);
-}
-
-// [HGM] seekgraph: some low-level drawing routines (by JC, mostly)
-
-float
-Color (char *col, int n)
-{
- int c;
- sscanf(col, "#%x", &c);
- c = c >> 4*n & 255;
- return c/255.;
-}
-
-void
-SetPen (cairo_t *cr, float w, char *col, int dash)
-{
- static const double dotted[] = {4.0, 4.0};
- static int len = sizeof(dotted) / sizeof(dotted[0]);
- cairo_set_line_width (cr, w);
- cairo_set_source_rgba (cr, Color(col, 4), Color(col, 2), Color(col, 0), 1.0);
- if(dash) cairo_set_dash (cr, dotted, len, 0.0);
-}
-
-void DrawSeekAxis( int x, int y, int xTo, int yTo )
-{
- cairo_t *cr;
-
- /* get a cairo_t */
- cr = cairo_create (CsBoardWindow(currBoard));
-
- cairo_move_to (cr, x, y);
- cairo_line_to(cr, xTo, yTo );
-
- SetPen(cr, 2, "#000000", 0);
- cairo_stroke(cr);
-
- /* free memory */
- cairo_destroy (cr);
- GraphExpose(currBoard, x-1, yTo-1, xTo-x+2, y-yTo+2);
-}
-
-void DrawSeekBackground( int left, int top, int right, int bottom )
-{
- cairo_t *cr = cairo_create (CsBoardWindow(currBoard));
-
- cairo_rectangle (cr, left, top, right-left, bottom-top);
-
- cairo_set_source_rgba(cr, 0.8, 0.8, 0.4,1.0);
- cairo_fill(cr);
-
- /* free memory */
- cairo_destroy (cr);
- GraphExpose(currBoard, left, top, right-left, bottom-top);
-}
-
-void DrawSeekText(char *buf, int x, int y)
-{
- cairo_t *cr = cairo_create (CsBoardWindow(currBoard));
-
- cairo_select_font_face (cr, "Sans",
- CAIRO_FONT_SLANT_NORMAL,
- CAIRO_FONT_WEIGHT_NORMAL);
-
- cairo_set_font_size (cr, 12.0);
-
- cairo_move_to (cr, x, y+4);
- cairo_set_source_rgba(cr, 0, 0, 0,1.0);
- cairo_show_text( cr, buf);
-
- /* free memory */
- cairo_destroy (cr);
- GraphExpose(currBoard, x-5, y-10, 60, 15);
-}
-
-void DrawSeekDot(int x, int y, int colorNr)
-{
- cairo_t *cr = cairo_create (CsBoardWindow(currBoard));
- int square = colorNr & 0x80;
- colorNr &= 0x7F;
-
- if(square)
- cairo_rectangle (cr, x-squareSize/9, y-squareSize/9, 2*(squareSize/9), 2*(squareSize/9));
- else
- cairo_arc(cr, x, y, squareSize/9, 0.0, 2*M_PI);
-
- SetPen(cr, 2, "#000000", 0);
- cairo_stroke_preserve(cr);
- switch (colorNr) {
- case 0: cairo_set_source_rgba(cr, 1.0, 0, 0,1.0); break;
- case 1: cairo_set_source_rgba (cr, 0.0, 0.7, 0.2, 1.0); break;
- default: cairo_set_source_rgba (cr, 1.0, 1.0, 0.0, 1.0); break;
- }
- cairo_fill(cr);
-
- /* free memory */
- cairo_destroy (cr);
- GraphExpose(currBoard, x-squareSize/8, y-squareSize/8, 2*(squareSize/8), 2*(squareSize/8));
-}
-
-void
-InitDrawingHandle (Option *opt)
-{
-// CsBoardWindow = DRAWABLE(opt);
- currBoard = opt;
-}
-
-void
-CreateGrid ()
-{
- int i, j;
-
- if (lineGap == 0) return;
-
- /* [HR] Split this into 2 loops for non-square boards. */
-
- for (i = 0; i < BOARD_HEIGHT + 1; i++) {
- gridSegments[i].x1 = 0;
- gridSegments[i].x2 =
- lineGap + BOARD_WIDTH * (squareSize + lineGap);
- gridSegments[i].y1 = gridSegments[i].y2
- = lineGap / 2 + (i * (squareSize + lineGap));
- }
-
- for (j = 0; j < BOARD_WIDTH + 1; j++) {
- gridSegments[j + i].y1 = 0;
- gridSegments[j + i].y2 =
- lineGap + BOARD_HEIGHT * (squareSize + lineGap);
- gridSegments[j + i].x1 = gridSegments[j + i].x2
- = lineGap / 2 + (j * (squareSize + lineGap));
- }
-}
-
-void
-DrawGrid()
-{
- /* draws a grid starting around Nx, Ny squares starting at x,y */
- int i;
- float odd = (lineGap & 1)/2.;
- cairo_t *cr;
-
- /* get a cairo_t */
- cr = cairo_create (CsBoardWindow(currBoard));
-
- cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
- SetPen(cr, lineGap, "#000000", 0);
-
- /* lines in X */
- for (i = 0; i < BOARD_WIDTH + BOARD_HEIGHT + 2; i++)
- {
- int h = (gridSegments[i].y1 == gridSegments[i].y2); // horizontal
- cairo_move_to (cr, gridSegments[i].x1 + !h*odd, gridSegments[i].y1 + h*odd);
- cairo_line_to (cr, gridSegments[i].x2 + !h*odd, gridSegments[i].y2 + h*odd);
- cairo_stroke (cr);
- }
-
- /* free memory */
- cairo_destroy (cr);
-
- return;
-}
-
-void
-DrawBorder (int x, int y, int type, int odd)
-{
- cairo_t *cr;
- char *col;
-
- switch(type) {
- case 0: col = "#000000"; break;
- case 1: col = appData.highlightSquareColor; break;
- case 2: col = appData.premoveHighlightColor; break;
- default: col = "#808080"; break; // cannot happen
- }
- cr = cairo_create(CsBoardWindow(currBoard));
- cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);
- cairo_rectangle(cr, x+odd/2., y+odd/2., squareSize+lineGap, squareSize+lineGap);
- SetPen(cr, lineGap, col, 0);
- cairo_stroke(cr);
- cairo_destroy(cr);
-// GraphExpose(currBoard, x - lineGap/2, y - lineGap/2, squareSize+2*lineGap+odd, squareSize+2*lineGap+odd);
-}
-
-static int
-CutOutSquare (int x, int y, int *x0, int *y0, int kind)
-{
- int W = BOARD_WIDTH, H = BOARD_HEIGHT;
- int nx = x/(squareSize + lineGap), ny = y/(squareSize + lineGap);
- *x0 = 0; *y0 = 0;
- if(textureW[kind] < squareSize || textureH[kind] < squareSize) return 0;
- if(modV[kind] > 0) nx %= modH[kind], ny %= modV[kind]; // tile fixed-format board periodically to extend it
- if(textureW[kind] < W*squareSize)
- *x0 = (textureW[kind] - squareSize) * nx/(W-1);
- else
- *x0 = textureW[kind]*nx / W + (textureW[kind] - W*squareSize) / (2*W);
- if(textureH[kind] < H*squareSize)
- *y0 = (textureH[kind] - squareSize) * ny/(H-1);
- else
- *y0 = textureH[kind]*ny / H + (textureH[kind] - H*squareSize) / (2*H);
- return 1;
-}
-
-void
-DrawLogo (Option *opt, void *logo)
-{
- cairo_surface_t *img;
- cairo_t *cr;
- int w, h;
-
- if(!opt) return;
- cr = cairo_create(CsBoardWindow(opt));
- cairo_rectangle (cr, 0, 0, opt->max, opt->value);
- cairo_set_source_rgba(cr, 0.5, 0.5, 0.5, 1.0);
- cairo_fill(cr); // paint background in case logo does not exist
- if(logo) {
- img = cairo_image_surface_create_from_png (logo);
- if(cairo_surface_status(img) == CAIRO_STATUS_SUCCESS) {
- w = cairo_image_surface_get_width (img);
- h = cairo_image_surface_get_height (img);
-// cairo_scale(cr, (float)appData.logoSize/w, appData.logoSize/(2.*h));
- cairo_scale(cr, (float)opt->max/w, (float)opt->value/h);
- cairo_set_source_surface (cr, img, 0, 0);
- cairo_paint (cr);
- }
- cairo_surface_destroy (img);
- }
- cairo_destroy (cr);
- GraphExpose(opt, 0, 0, opt->max, opt->value);
-}
-
-static void
-BlankSquare (cairo_surface_t *dest, int x, int y, int color, ChessSquare piece, int fac)
-{ // [HGM] extra param 'fac' for forcing destination to (0,0) for copying to animation buffer
- int x0, y0;
- cairo_t *cr;
-
- cr = cairo_create (dest);
-
- if ((useTexture & color+1) && CutOutSquare(x, y, &x0, &y0, color)) {
- cairo_set_source_surface (cr, pngBoardBitmap[color], x*fac - x0, y*fac - y0);
- cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
- cairo_rectangle (cr, x*fac, y*fac, squareSize, squareSize);
- cairo_fill (cr);
- cairo_destroy (cr);
- } else { // evenly colored squares
- char *col = NULL;
- switch (color) {
- case 0: col = appData.darkSquareColor; break;
- case 1: col = appData.lightSquareColor; break;
- case 2: col = "#000000"; break;
- default: col = "#808080"; break; // cannot happen
- }
- SetPen(cr, 2.0, col, 0);
- cairo_rectangle (cr, fac*x, fac*y, squareSize, squareSize);
- cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
- cairo_fill (cr);
- cairo_destroy (cr);
- }
-}
-
-static void
-pngDrawPiece (cairo_surface_t *dest, ChessSquare piece, int square_color, int x, int y)
-{
- int kind;
- cairo_t *cr;
-
- if ((int)piece < (int) BlackPawn) {
- kind = 0;
- } else {
- kind = 1;
- piece -= BlackPawn;
- }
- if(appData.upsideDown && flipView) kind = 1 - kind; // swap white and black pieces
- BlankSquare(dest, x, y, square_color, piece, 1); // erase previous contents with background
- cr = cairo_create (dest);
- cairo_set_source_surface (cr, pngPieceBitmaps[kind][piece], x, y);
- cairo_paint(cr);
- cairo_destroy (cr);
-}
-
-static char *markerColor[8] = { "#FFFF00", "#FF0000", "#00FF00", "#0000FF", "#00FFFF", "#FF00FF", "#FFFFFF", "#000000" };
-
-void
-DoDrawDot (cairo_surface_t *cs, int marker, int x, int y, int r)
-{
- cairo_t *cr;
-
- cr = cairo_create(cs);
- cairo_arc(cr, x+r/2, y+r/2, r/2, 0.0, 2*M_PI);
- if(appData.monoMode) {
- SetPen(cr, 2, marker == 2 ? "#000000" : "#FFFFFF", 0);
- cairo_stroke_preserve(cr);
- SetPen(cr, 2, marker == 2 ? "#FFFFFF" : "#000000", 0);
- } else {
- SetPen(cr, 2, markerColor[marker-1], 0);
- }
- cairo_fill(cr);
-
- cairo_destroy(cr);
-}
-
-void
-DrawDot (int marker, int x, int y, int r)
-{ // used for atomic captures; no need to draw on backup
- DoDrawDot(CsBoardWindow(currBoard), marker, x, y, r);
- GraphExpose(currBoard, x-r, y-r, 2*r, 2*r);
-}
-
-static void
-DrawUnicode (cairo_surface_t *canvas, char *string, int x, int y, char id, int flip)
-{
-// cairo_text_extents_t te;
- cairo_t *cr;
- int s = 1 - 2*flip;
- PangoLayout *layout;
- PangoFontDescription *desc;
- PangoRectangle r;
- char fontName[MSG_SIZ];
-
- cr = cairo_create (canvas);
- layout = pango_cairo_create_layout(cr);
- pango_layout_set_text(layout, string, -1);
- snprintf(fontName, MSG_SIZ, "Sans Normal %dpx", 5*squareSize/8);
- desc = pango_font_description_from_string(fontName);
- pango_layout_set_font_description(layout, desc);
- pango_font_description_free(desc);
- pango_layout_get_pixel_extents(layout, NULL, &r);
- cairo_translate(cr, x + squareSize/2 - s*r.width/2, y + (8+s)*squareSize/16 - s*r.height/2);
- if(s < 0) cairo_rotate(cr, G_PI);
- cairo_set_source_rgb(cr, (id == '+' ? 1.0 : 0.0), 0.0, 0.0);
- pango_cairo_update_layout(cr, layout);
- pango_cairo_show_layout(cr, layout);
- g_object_unref(layout);
- cairo_destroy(cr);
-}
-
-void
-DrawText (char *string, int x, int y, int align)
-{
- int xx = x, yy = y;
- cairo_text_extents_t te;
- cairo_t *cr;
-
- cr = cairo_create (CsBoardWindow(currBoard));
- cairo_select_font_face (cr, "Sans",
- CAIRO_FONT_SLANT_NORMAL,
- CAIRO_FONT_WEIGHT_BOLD);
-
- cairo_set_font_size (cr, align < 0 ? 2*squareSize/3 : squareSize/4);
- // calculate where it goes
- cairo_text_extents (cr, string, &te);
-
- if (align == 1) {
- xx += squareSize - te.width - te.x_bearing - 1;
- yy += squareSize - te.height - te.y_bearing - 1;
- } else if (align == 2) {
- xx += te.x_bearing + 1, yy += -te.y_bearing + 1;
- } else if (align == 3) {
- xx += squareSize - te.width -te.x_bearing - 1;
- yy += -te.y_bearing + 3;
- } else if (align == 4) {
- xx += te.x_bearing + 1, yy += -te.y_bearing + 3;
- }
-
- cairo_move_to (cr, xx-1, yy);
- if(align < 3) cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
- else cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
- cairo_show_text (cr, string);
- cairo_destroy (cr);
-}
-
-void
-InscribeKanji (cairo_surface_t *canvas, ChessSquare piece, int x, int y)
-{
- char *p, *q, buf[10];
- int n, flip = appData.upsideDown && flipView == (piece < BlackPawn);
- if(piece == EmptySquare) return;
- if(piece >= BlackPawn) piece = BLACK_TO_WHITE piece;
- p = appData.inscriptions;
- n = piece;
- while(piece > WhitePawn) {
- if(*p++ == NULLCHAR) {
- if(n != WhiteKing) return;
- p = q;
- break;
- }
- q = p - 1;
- while((*p & 0xC0) == 0x80) p++; // skip UTF-8 continuation bytes
- piece--;
- }
- strncpy(buf, p, 10);
- for(q=buf; (*++q & 0xC0) == 0x80;);
- *q = NULLCHAR;
- DrawUnicode(canvas, buf, x, y, PieceToChar(n), flip);
-}
-
-void
-DrawOneSquare (int x, int y, ChessSquare piece, int square_color, int marker, char *tString, char *bString, int align)
-{ // basic front-end board-draw function: takes care of everything that can be in square:
- // piece, background, coordinate/count, marker dot
-
- if (piece == EmptySquare) {
- BlankSquare(CsBoardWindow(currBoard), x, y, square_color, piece, 1);
- } else {
- pngDrawPiece(CsBoardWindow(currBoard), piece, square_color, x, y);
- if(appData.inscriptions[0]) InscribeKanji(CsBoardWindow(currBoard), piece, x, y);
- }
-
- if(align) { // square carries inscription (coord or piece count)
- if(align > 1) DrawText(tString, x, y, align); // top (rank or count)
- if(bString && *bString) DrawText(bString, x, y, 1); // bottom (always lower right file ID)
- }
-
- if(marker) { // print fat marker dot, if requested
- DoDrawDot(CsBoardWindow(currBoard), marker, x + squareSize/4, y+squareSize/4, squareSize/2);
- }
-}
-
-/**** Animation code by Hugh Fisher, DCS, ANU. ****/
-
-/* Masks for XPM pieces. Black and white pieces can have
- different shapes, but in the interest of retaining my
- sanity pieces must have the same outline on both light
- and dark squares, and all pieces must use the same
- background square colors/images. */
-
-static cairo_surface_t *c_animBufs[3*NrOfAnims]; // newBuf, saveBuf
-
-static void
-InitAnimState (AnimNr anr)
-{
- if(c_animBufs[anr]) cairo_surface_destroy (c_animBufs[anr]);
- if(c_animBufs[anr+2]) cairo_surface_destroy (c_animBufs[anr+2]);
- c_animBufs[anr+4] = CsBoardWindow(currBoard);
- c_animBufs[anr+2] = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, squareSize, squareSize);
- c_animBufs[anr] = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, squareSize, squareSize);
-}
-
-void
-CreateAnimVars ()
-{
- InitAnimState(Game);
- InitAnimState(Player);
-}
-
-static void
-CairoOverlayPiece (ChessSquare piece, cairo_surface_t *dest)
-{
- static cairo_t *pieceSource;
- pieceSource = cairo_create (dest);
- cairo_set_source_surface (pieceSource, pngPieceBitmaps[!White(piece)][piece % BlackPawn], 0, 0);
- if(doubleClick) cairo_paint_with_alpha (pieceSource, 0.6);
- else cairo_paint(pieceSource);
- cairo_destroy (pieceSource);
- if(appData.inscriptions[0]) InscribeKanji(dest, piece, 0, 0);
-}
-
-void
-InsertPiece (AnimNr anr, ChessSquare piece)
-{
- CairoOverlayPiece(piece, c_animBufs[anr]);
-}
-
-void
-DrawBlank (AnimNr anr, int x, int y, int startColor)
-{
- BlankSquare(c_animBufs[anr+2], x, y, startColor, EmptySquare, 0);
-}
-
-void CopyRectangle (AnimNr anr, int srcBuf, int destBuf,
- int srcX, int srcY, int width, int height, int destX, int destY)
-{
- cairo_t *cr;
- c_animBufs[anr+4] = CsBoardWindow(currBoard);
- cr = cairo_create (c_animBufs[anr+destBuf]);
- cairo_set_source_surface (cr, c_animBufs[anr+srcBuf], destX - srcX, destY - srcY);
- cairo_rectangle (cr, destX, destY, width, height);
- cairo_fill (cr);
- cairo_destroy (cr);
- if(c_animBufs[anr+destBuf] == CsBoardWindow(currBoard)) // suspect that GTK needs this!
- GraphExpose(currBoard, destX, destY, width, height);
-}
-
-void
-SetDragPiece (AnimNr anr, ChessSquare piece)
-{
-}
-
-/* [AS] Arrow highlighting support */
-
-void
-DoDrawPolygon (cairo_surface_t *cs, Pnt arrow[], int nr)
-{
- cairo_t *cr;
- int i;
- cr = cairo_create (cs);
- cairo_move_to (cr, arrow[nr-1].x, arrow[nr-1].y);
- for (i=0;i<nr;i++) {
- cairo_line_to(cr, arrow[i].x, arrow[i].y);
- }
- if(appData.monoMode) { // should we always outline arrow?
- cairo_line_to(cr, arrow[0].x, arrow[0].y);
- SetPen(cr, 2, "#000000", 0);
- cairo_stroke_preserve(cr);
- }
- SetPen(cr, 2, appData.highlightSquareColor, 0);
- cairo_fill(cr);
-
- /* free memory */
- cairo_destroy (cr);
-}
-
-void
-DrawPolygon (Pnt arrow[], int nr)
-{
- DoDrawPolygon(CsBoardWindow(currBoard), arrow, nr);
-// if(!dual) DoDrawPolygon(csBoardBackup, arrow, nr);
-}
-
-//-------------------- Eval Graph drawing routines (formerly in xevalgraph.h) --------------------
-
-static void
-ChoosePen(cairo_t *cr, int i)
-{
- switch(i) {
- case PEN_BLACK:
- SetPen(cr, 1.0, "#000000", 0);
- break;
- case PEN_DOTTED:
- SetPen(cr, 1.0, "#A0A0A0", 1);
- break;
- case PEN_BLUEDOTTED:
- SetPen(cr, 1.0, "#0000FF", 1);
- break;
- case PEN_BOLDWHITE:
- SetPen(cr, 3.0, crWhite, 0);
- break;
- case PEN_BOLDBLACK:
- SetPen(cr, 3.0, crBlack, 0);
- break;
- case PEN_BACKGD:
- SetPen(cr, 3.0, "#E0E0F0", 0);
- break;
- }
-}
-
-// [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)
-{
- static int curX, curY;
-
- if(penType != PEN_NONE) {
- cairo_t *cr = cairo_create(CsBoardWindow(disp));
- cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
- cairo_move_to (cr, curX, curY);
- cairo_line_to (cr, x,y);
- ChoosePen(cr, penType);
- cairo_stroke (cr);
- cairo_destroy (cr);
- }
-
- if(lastX != NULL) { *lastX = curX; *lastY = curY; }
- curX = x; curY = y;
-}
-
-// front-end wrapper for drawing functions to do rectangles
-void
-DrawRectangle (int left, int top, int right, int bottom, int side, int style)
-{
- cairo_t *cr;
-
- cr = cairo_create (CsBoardWindow(disp));
- cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
- cairo_rectangle (cr, left, top, right-left, bottom-top);
- switch(side)
- {
- case 0: ChoosePen(cr, PEN_BOLDWHITE); break;
- case 1: ChoosePen(cr, PEN_BOLDBLACK); break;
- case 2: ChoosePen(cr, PEN_BACKGD); break;
- }
- cairo_fill (cr);
-
- if(style != FILLED)
- {
- cairo_rectangle (cr, left, top, right-left-1, bottom-top-1);
- ChoosePen(cr, PEN_BLACK);
- cairo_stroke (cr);
- }
-
- cairo_destroy(cr);
-}
-
-// front-end wrapper for putting text in graph
-void
-DrawEvalText (char *buf, int cbBuf, int y)
-{
- // the magic constants 8 and 5 should really be derived from the font size somehow
- cairo_text_extents_t extents;
- cairo_t *cr = cairo_create(CsBoardWindow(disp));
-
- /* GTK-TODO this has to go into the font-selection */
- cairo_select_font_face (cr, "Sans",
- CAIRO_FONT_SLANT_NORMAL,
- CAIRO_FONT_WEIGHT_NORMAL);
- cairo_set_font_size (cr, 12.0);
-
-
- cairo_text_extents (cr, buf, &extents);
-
- cairo_move_to (cr, MarginX - 2 - 8*cbBuf, y+5);
- cairo_text_path (cr, buf);
- cairo_set_source_rgb (cr, 0.0, 0.0, 0);
- cairo_fill_preserve (cr);
- cairo_set_source_rgb (cr, 0, 1.0, 0);
- cairo_set_line_width (cr, 0.1);
- cairo_stroke (cr);
-
- /* free memory */
- cairo_destroy (cr);
-}
projects / xboard.git / blobdiff