X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=draw.c;h=82c558292c9ef920676fa1fcf2f4f3a8a520e1a1;hb=177f117f792a71a016c3d13e6c45161d0f45dd70;hp=7ec217a32b636fe39002440bd3b370b7538d6aa6;hpb=c92e2f2ffaa06d31679e82d82f86b8e07fc4b770;p=xboard.git

diff --git a/draw.c b/draw.c
index 7ec217a..82c5582 100644
--- a/draw.c
+++ b/draw.c
@@ -78,10 +78,6 @@ extern char *getenv();
 // [HGM] bitmaps: put before incuding the bitmaps / pixmaps, to know how many piece types there are.
 #include "common.h"
 
-#if HAVE_LIBXPM
-#include "pixmaps/pixmaps.h"
-#endif
-
 #include "frontend.h"
 #include "backend.h"
 #include "xevalgraph.h"
@@ -204,6 +200,17 @@ InitDrawingSizes (BoardSize boardSize, int flags)
   oldMono = appData.monoMode;
 }
 
+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 void
 CreatePNGBoard (char *s, int kind)
 {
@@ -224,39 +231,6 @@ char *pngPieceNames[] = // must be in same order as internal piece encoding
   "GoldKnight", "GoldLance", "GoldPawn", "GoldSilver", NULL
 };
 
-cairo_surface_t *
-ConvertPixmap (int color, int piece)
-{
-  int i, j, stride, f, colcode[10], w, b;
-  char ch[10];
-  cairo_surface_t *res;
-  XpmPieces *p = builtInXpms + 10;
-  char **pixels = p->xpm[piece % BlackPawn][2*color];
-  int *buf;
-  sscanf(pixels[0], "%*d %*d %d", &f);
-  sscanf(appData.whitePieceColor+1, "%x", &w);
-  sscanf(appData.blackPieceColor+1, "%x", &b);
-  res = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, p->size, p->size);
-  stride = cairo_image_surface_get_stride(res);
-  buf = (int *) cairo_image_surface_get_data(res);
-  for(i=0; i<f; i++) {
-    ch[i] = pixels[i+1][0];
-    colcode[i] = 0;
-    if(strstr(pixels[i+1], "black")) colcode[i] = 0xFF000000; // 0xFF000000 + (color ? b : 0);
-    if(strstr(pixels[i+1], "white")) colcode[i] = 0xFFFFFFCC; // 0xFF000000 + w;
-  }
-  for(i=0; i<p->size; i++) {
-    for(j=0; j<p->size; j++) {
-      char c = pixels[i+f+1][j];
-      int k;
-      for(k=0; ch[k] != c && k < f; k++);
-      buf[i*p->size + j] = colcode[k];
-    }
-  }
-  cairo_surface_mark_dirty(res);
-  return res;
-}
-
 RsvgHandle *
 LoadSVG (char *dir, int color, int piece)
 {
@@ -313,8 +287,13 @@ ScaleOnePiece (int color, int piece)
   }
 
   if(!pngPieceImages[color][piece]) { // we still did not manage to acquire a piece bitmap
-    if(!(svgPieces[color][piece] = LoadSVG(appData.svgDirectory, color, piece))) // try to fall back on installed svg
-      DisplayError(_("No default pieces installed\nSelect your own -pieceImageDirectory"), 0); // give up
+    static int warned = 0;
+    if(!(svgPieces[color][piece] = LoadSVG(SVGDIR, color, piece)) && !warned) { // try to fall back on installed svg
+      char *msg = _("No default pieces installed\nSelect your own -pieceImageDirectory");
+      printf("%s\n", msg); // give up
+      DisplayError(msg, 0);
+      warned = 1; // prevent error message being repeated for each piece type
+    }
   }
 
   img = pngPieceImages[color][piece];
@@ -324,6 +303,8 @@ ScaleOnePiece (int color, int piece)
   pngPieceBitmaps2[color][piece] = cs = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, squareSize, squareSize);
   if(piece <= WhiteKing) pngPieceBitmaps[color][piece] = cs;
 
+  if(!img) return;
+
   // scaled copying of the raw png image
   cr = cairo_create(cs);
   w = cairo_image_surface_get_width (img);
@@ -333,7 +314,7 @@ ScaleOnePiece (int color, int piece)
   cairo_paint (cr);
   cairo_destroy (cr);
 
-  if(!appData.trueColors || !*appData.pieceDirectory && !appData.svgDirectory) { // operate on bitmap to color it (king-size hack...)
+  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;
@@ -348,6 +329,11 @@ ScaleOnePiece (int color, int piece)
 	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);
   }
@@ -376,7 +362,6 @@ void
 InitDrawingParams (int reloadPieces)
 {
     int i, p;
-    MakeColors();
     if(reloadPieces)
     for(i=0; i<2; i++) for(p=0; p<BlackPawn+4; p++) {
 	if(pngPieceImages[i][p]) cairo_surface_destroy(pngPieceImages[i][p]);
@@ -533,8 +518,9 @@ DrawGrid()
   /* lines in X */
   for (i = 0; i < BOARD_WIDTH + BOARD_HEIGHT + 2; i++)
     {
-      cairo_move_to (cr, gridSegments[i].x1 + odd, gridSegments[i].y1 + odd);
-      cairo_line_to (cr, gridSegments[i].x2 + odd, gridSegments[i].y2 + odd);
+      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);
     }