+ DWORD timer_last_tickcount;
+ int npresets;
+ game_params **presets;
+ struct font *fonts;
+ int nfonts, fontsize;
+ config_item *cfg;
+ struct cfg_aux *cfgaux;
+ int cfg_which, dlg_done;
+ HFONT cfgfont;
+ HBRUSH oldbr;
+ HPEN oldpen;
+ char *help_path;
+ int help_has_contents;
+ char *laststatus;
+ enum { DRAWING, PRINTING, NOTHING } drawstatus;
+ DOCINFO di;
+ int printcount, printw, printh, printsolns, printcurr, printcolour;
+ float printscale;
+ int printoffsetx, printoffsety;
+ float printpixelscale;
+ int fontstart;
+ int linewidth;
+ drawing *dr;
+};
+
+void fatal(char *fmt, ...)
+{
+ char buf[2048];
+ va_list ap;
+
+ va_start(ap, fmt);
+ vsprintf(buf, fmt, ap);
+ va_end(ap);
+
+ MessageBox(NULL, buf, "Fatal error", MB_ICONEXCLAMATION | MB_OK);
+
+ exit(1);
+}
+
+char *geterrstr(void)
+{
+ LPVOID lpMsgBuf;
+ DWORD dw = GetLastError();
+ char *ret;
+
+ FormatMessage(
+ FORMAT_MESSAGE_ALLOCATE_BUFFER |
+ FORMAT_MESSAGE_FROM_SYSTEM,
+ NULL,
+ dw,
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ (LPTSTR) &lpMsgBuf,
+ 0, NULL );
+
+ ret = dupstr(lpMsgBuf);
+
+ LocalFree(lpMsgBuf);
+
+ return ret;
+}
+
+void get_random_seed(void **randseed, int *randseedsize)
+{
+ time_t *tp = snew(time_t);
+ time(tp);
+ *randseed = (void *)tp;
+ *randseedsize = sizeof(time_t);
+}
+
+static void win_status_bar(void *handle, char *text)
+{
+ frontend *fe = (frontend *)handle;
+ char *rewritten;
+
+ rewritten = midend_rewrite_statusbar(fe->me, text);
+ if (!fe->laststatus || strcmp(rewritten, fe->laststatus)) {
+ SetWindowText(fe->statusbar, rewritten);
+ sfree(fe->laststatus);
+ fe->laststatus = rewritten;
+ } else {
+ sfree(rewritten);
+ }
+}
+
+static blitter *win_blitter_new(void *handle, int w, int h)
+{
+ blitter *bl = snew(blitter);
+
+ memset(bl, 0, sizeof(blitter));
+ bl->w = w;
+ bl->h = h;
+ bl->bitmap = 0;
+
+ return bl;
+}
+
+static void win_blitter_free(void *handle, blitter *bl)
+{
+ if (bl->bitmap) DeleteObject(bl->bitmap);
+ sfree(bl);
+}
+
+static void blitter_mkbitmap(frontend *fe, blitter *bl)
+{
+ HDC hdc = GetDC(fe->hwnd);
+ bl->bitmap = CreateCompatibleBitmap(hdc, bl->w, bl->h);
+ ReleaseDC(fe->hwnd, hdc);
+}
+
+/* BitBlt(dstDC, dstX, dstY, dstW, dstH, srcDC, srcX, srcY, dType) */
+
+static void win_blitter_save(void *handle, blitter *bl, int x, int y)
+{
+ frontend *fe = (frontend *)handle;
+ HDC hdc_win, hdc_blit;
+ HBITMAP prev_blit;
+
+ assert(fe->drawstatus == DRAWING);
+
+ if (!bl->bitmap) blitter_mkbitmap(fe, bl);
+
+ bl->x = x; bl->y = y;
+
+ hdc_win = GetDC(fe->hwnd);
+ hdc_blit = CreateCompatibleDC(hdc_win);
+ if (!hdc_blit) fatal("hdc_blit failed: 0x%x", GetLastError());
+
+ prev_blit = SelectObject(hdc_blit, bl->bitmap);
+ if (prev_blit == NULL || prev_blit == HGDI_ERROR)
+ fatal("SelectObject for hdc_main failed: 0x%x", GetLastError());
+
+ if (!BitBlt(hdc_blit, 0, 0, bl->w, bl->h,
+ fe->hdc, x, y, SRCCOPY))
+ fatal("BitBlt failed: 0x%x", GetLastError());
+
+ SelectObject(hdc_blit, prev_blit);
+ DeleteDC(hdc_blit);
+ ReleaseDC(fe->hwnd, hdc_win);
+}
+
+static void win_blitter_load(void *handle, blitter *bl, int x, int y)
+{
+ frontend *fe = (frontend *)handle;
+ HDC hdc_win, hdc_blit;
+ HBITMAP prev_blit;
+
+ assert(fe->drawstatus == DRAWING);
+
+ assert(bl->bitmap); /* we should always have saved before loading */
+
+ if (x == BLITTER_FROMSAVED) x = bl->x;
+ if (y == BLITTER_FROMSAVED) y = bl->y;
+
+ hdc_win = GetDC(fe->hwnd);
+ hdc_blit = CreateCompatibleDC(hdc_win);
+
+ prev_blit = SelectObject(hdc_blit, bl->bitmap);
+
+ BitBlt(fe->hdc, x, y, bl->w, bl->h,
+ hdc_blit, 0, 0, SRCCOPY);
+
+ SelectObject(hdc_blit, prev_blit);
+ DeleteDC(hdc_blit);
+ ReleaseDC(fe->hwnd, hdc_win);
+}
+
+void frontend_default_colour(frontend *fe, float *output)
+{
+ DWORD c = GetSysColor(COLOR_MENU); /* ick */
+
+ output[0] = (float)(GetRValue(c) / 255.0);
+ output[1] = (float)(GetGValue(c) / 255.0);
+ output[2] = (float)(GetBValue(c) / 255.0);
+}
+
+static POINT win_transform_point(frontend *fe, int x, int y)
+{
+ POINT ret;
+
+ assert(fe->drawstatus != NOTHING);
+
+ if (fe->drawstatus == PRINTING) {
+ ret.x = (int)(fe->printoffsetx + fe->printpixelscale * x);
+ ret.y = (int)(fe->printoffsety + fe->printpixelscale * y);
+ } else {
+ ret.x = x;
+ ret.y = y;
+ }
+
+ return ret;
+}
+
+static void win_text_colour(frontend *fe, int colour)
+{
+ assert(fe->drawstatus != NOTHING);
+
+ if (fe->drawstatus == PRINTING) {
+ int hatch;
+ float r, g, b;
+ print_get_colour(fe->dr, colour, &hatch, &r, &g, &b);
+ if (fe->printcolour)
+ SetTextColor(fe->hdc, RGB(r * 255, g * 255, b * 255));
+ else
+ SetTextColor(fe->hdc,
+ hatch == HATCH_CLEAR ? RGB(255,255,255) : RGB(0,0,0));
+ } else {
+ SetTextColor(fe->hdc, fe->colours[colour]);
+ }
+}
+
+static void win_set_brush(frontend *fe, int colour)
+{
+ HBRUSH br;
+ assert(fe->drawstatus != NOTHING);
+
+ if (fe->drawstatus == PRINTING) {
+ int hatch;
+ float r, g, b;
+ print_get_colour(fe->dr, colour, &hatch, &r, &g, &b);
+
+ if (fe->printcolour)
+ br = CreateSolidBrush(RGB(r * 255, g * 255, b * 255));
+ else if (hatch == HATCH_SOLID)
+ br = CreateSolidBrush(RGB(0,0,0));
+ else if (hatch == HATCH_CLEAR)
+ br = CreateSolidBrush(RGB(255,255,255));
+ else
+ br = CreateHatchBrush(hatch == HATCH_BACKSLASH ? HS_FDIAGONAL :
+ hatch == HATCH_SLASH ? HS_BDIAGONAL :
+ hatch == HATCH_HORIZ ? HS_HORIZONTAL :
+ hatch == HATCH_VERT ? HS_VERTICAL :
+ hatch == HATCH_PLUS ? HS_CROSS :
+ /* hatch == HATCH_X ? */ HS_DIAGCROSS,
+ RGB(0,0,0));
+ } else {
+ br = fe->brushes[colour];
+ }
+ fe->oldbr = SelectObject(fe->hdc, br);
+}
+
+static void win_reset_brush(frontend *fe)
+{
+ HBRUSH br;
+
+ assert(fe->drawstatus != NOTHING);
+
+ br = SelectObject(fe->hdc, fe->oldbr);
+ if (fe->drawstatus == PRINTING)
+ DeleteObject(br);
+}
+
+static void win_set_pen(frontend *fe, int colour, int thin)
+{
+ HPEN pen;
+ assert(fe->drawstatus != NOTHING);
+
+ if (fe->drawstatus == PRINTING) {
+ int hatch;
+ float r, g, b;
+ int width = thin ? 0 : fe->linewidth;
+
+ print_get_colour(fe->dr, colour, &hatch, &r, &g, &b);
+ if (fe->printcolour)
+ pen = CreatePen(PS_SOLID, width,
+ RGB(r * 255, g * 255, b * 255));
+ else if (hatch == HATCH_SOLID)
+ pen = CreatePen(PS_SOLID, width, RGB(0, 0, 0));
+ else if (hatch == HATCH_CLEAR)
+ pen = CreatePen(PS_SOLID, width, RGB(255,255,255));
+ else {
+ assert(!"This shouldn't happen");
+ pen = CreatePen(PS_SOLID, 1, RGB(0, 0, 0));
+ }
+ } else {
+ pen = fe->pens[colour];
+ }
+ fe->oldpen = SelectObject(fe->hdc, pen);
+}
+
+static void win_reset_pen(frontend *fe)
+{
+ HPEN pen;
+
+ assert(fe->drawstatus != NOTHING);
+
+ pen = SelectObject(fe->hdc, fe->oldpen);
+ if (fe->drawstatus == PRINTING)
+ DeleteObject(pen);
+}
+
+static void win_clip(void *handle, int x, int y, int w, int h)
+{
+ frontend *fe = (frontend *)handle;
+ POINT p, q;
+
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ p = win_transform_point(fe, x, y);
+ q = win_transform_point(fe, x+w, y+h);
+ IntersectClipRect(fe->hdc, p.x, p.y, q.x, q.y);
+}
+
+static void win_unclip(void *handle)
+{
+ frontend *fe = (frontend *)handle;
+
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ SelectClipRgn(fe->hdc, NULL);
+}
+
+static void win_draw_text(void *handle, int x, int y, int fonttype,
+ int fontsize, int align, int colour, char *text)
+{
+ frontend *fe = (frontend *)handle;
+ POINT xy;
+ int i;
+
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ if (fe->drawstatus == PRINTING)
+ fontsize = (int)(fontsize * fe->printpixelscale);
+
+ xy = win_transform_point(fe, x, y);
+
+ /*
+ * Find or create the font.
+ */
+ for (i = fe->fontstart; i < fe->nfonts; i++)
+ if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
+ break;
+
+ if (i == fe->nfonts) {
+ if (fe->fontsize <= fe->nfonts) {
+ fe->fontsize = fe->nfonts + 10;
+ fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
+ }
+
+ fe->nfonts++;
+
+ fe->fonts[i].type = fonttype;
+ fe->fonts[i].size = fontsize;
+
+ fe->fonts[i].font = CreateFont(-fontsize, 0, 0, 0,
+ fe->drawstatus == PRINTING ? 0 : FW_BOLD,
+ FALSE, FALSE, FALSE, DEFAULT_CHARSET,
+ OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
+ DEFAULT_QUALITY,
+ (fonttype == FONT_FIXED ?
+ FIXED_PITCH | FF_DONTCARE :
+ VARIABLE_PITCH | FF_SWISS),
+ NULL);
+ }
+
+ /*
+ * Position and draw the text.
+ */
+ {
+ HFONT oldfont;
+ TEXTMETRIC tm;
+ SIZE size;
+
+ oldfont = SelectObject(fe->hdc, fe->fonts[i].font);
+ if (GetTextMetrics(fe->hdc, &tm)) {
+ if (align & ALIGN_VCENTRE)
+ xy.y -= (tm.tmAscent+tm.tmDescent)/2;
+ else
+ xy.y -= tm.tmAscent;
+ }
+ if (GetTextExtentPoint32(fe->hdc, text, strlen(text), &size)) {
+ if (align & ALIGN_HCENTRE)
+ xy.x -= size.cx / 2;
+ else if (align & ALIGN_HRIGHT)
+ xy.x -= size.cx;
+ }
+ SetBkMode(fe->hdc, TRANSPARENT);
+ win_text_colour(fe, colour);
+ TextOut(fe->hdc, xy.x, xy.y, text, strlen(text));
+ SelectObject(fe->hdc, oldfont);
+ }
+}
+
+static void win_draw_rect(void *handle, int x, int y, int w, int h, int colour)
+{
+ frontend *fe = (frontend *)handle;
+ POINT p, q;
+
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ if (fe->drawstatus == DRAWING && w == 1 && h == 1) {
+ /*
+ * Rectangle() appears to get uppity if asked to draw a 1x1
+ * rectangle, presumably on the grounds that that's beneath
+ * its dignity and you ought to be using SetPixel instead.
+ * So I will.
+ */
+ SetPixel(fe->hdc, x, y, fe->colours[colour]);
+ } else {
+ win_set_brush(fe, colour);
+ win_set_pen(fe, colour, TRUE);
+ p = win_transform_point(fe, x, y);
+ q = win_transform_point(fe, x+w, y+h);
+ Rectangle(fe->hdc, p.x, p.y, q.x, q.y);
+ win_reset_brush(fe);
+ win_reset_pen(fe);
+ }
+}
+
+static void win_draw_line(void *handle, int x1, int y1, int x2, int y2, int colour)
+{
+ frontend *fe = (frontend *)handle;
+ POINT p, q;
+
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ win_set_pen(fe, colour, FALSE);
+ p = win_transform_point(fe, x1, y1);
+ q = win_transform_point(fe, x2, y2);
+ MoveToEx(fe->hdc, p.x, p.y, NULL);
+ LineTo(fe->hdc, q.x, q.y);
+ if (fe->drawstatus == DRAWING)
+ SetPixel(fe->hdc, q.x, q.y, fe->colours[colour]);
+ win_reset_pen(fe);
+}
+
+static void win_draw_circle(void *handle, int cx, int cy, int radius,
+ int fillcolour, int outlinecolour)
+{
+ frontend *fe = (frontend *)handle;
+ POINT p, q, r;
+
+ assert(outlinecolour >= 0);
+
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ if (fillcolour >= 0) {
+ win_set_brush(fe, fillcolour);
+ win_set_pen(fe, outlinecolour, FALSE);
+ p = win_transform_point(fe, cx - radius, cy - radius);
+ q = win_transform_point(fe, cx + radius, cy + radius);
+ Ellipse(fe->hdc, p.x, p.y, q.x+1, q.y+1);
+ win_reset_brush(fe);
+ win_reset_pen(fe);
+ } else {
+ win_set_pen(fe, outlinecolour, FALSE);
+ p = win_transform_point(fe, cx - radius, cy - radius);
+ q = win_transform_point(fe, cx + radius, cy + radius);
+ r = win_transform_point(fe, cx - radius, cy);
+ Arc(fe->hdc, p.x, p.y, q.x+1, q.y+1, r.x, r.y, r.x, r.y);
+ win_reset_pen(fe);
+ }
+}
+
+static void win_draw_polygon(void *handle, int *coords, int npoints,
+ int fillcolour, int outlinecolour)
+{
+ frontend *fe = (frontend *)handle;
+ POINT *pts;
+ int i;
+
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ pts = snewn(npoints+1, POINT);
+
+ for (i = 0; i <= npoints; i++) {
+ int j = (i < npoints ? i : 0);
+ pts[i] = win_transform_point(fe, coords[j*2], coords[j*2+1]);
+ }
+
+ assert(outlinecolour >= 0);
+
+ if (fillcolour >= 0) {
+ win_set_brush(fe, fillcolour);
+ win_set_pen(fe, outlinecolour, FALSE);
+ Polygon(fe->hdc, pts, npoints);
+ win_reset_brush(fe);
+ win_reset_pen(fe);
+ } else {
+ win_set_pen(fe, outlinecolour, FALSE);
+ Polyline(fe->hdc, pts, npoints+1);
+ win_reset_pen(fe);
+ }
+
+ sfree(pts);
+}
+
+static void win_start_draw(void *handle)
+{
+ frontend *fe = (frontend *)handle;
+ HDC hdc_win;
+
+ assert(fe->drawstatus == NOTHING);
+
+ hdc_win = GetDC(fe->hwnd);
+ fe->hdc = CreateCompatibleDC(hdc_win);
+ fe->prevbm = SelectObject(fe->hdc, fe->bitmap);
+ ReleaseDC(fe->hwnd, hdc_win);
+ fe->clip = NULL;
+ SetMapMode(fe->hdc, MM_TEXT);
+ fe->drawstatus = DRAWING;
+}
+
+static void win_draw_update(void *handle, int x, int y, int w, int h)
+{
+ frontend *fe = (frontend *)handle;
+ RECT r;
+
+ if (fe->drawstatus != DRAWING)
+ return;
+
+ r.left = x;
+ r.top = y;
+ r.right = x + w;
+ r.bottom = y + h;
+
+ InvalidateRect(fe->hwnd, &r, FALSE);
+}
+
+static void win_end_draw(void *handle)
+{
+ frontend *fe = (frontend *)handle;
+ assert(fe->drawstatus == DRAWING);
+ SelectObject(fe->hdc, fe->prevbm);
+ DeleteDC(fe->hdc);
+ if (fe->clip) {
+ DeleteObject(fe->clip);
+ fe->clip = NULL;
+ }
+ fe->drawstatus = NOTHING;
+}
+
+static void win_line_width(void *handle, float width)
+{
+ frontend *fe = (frontend *)handle;
+
+ assert(fe->drawstatus != DRAWING);
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ fe->linewidth = (int)(width * fe->printpixelscale);
+}
+
+static void win_begin_doc(void *handle, int pages)
+{
+ frontend *fe = (frontend *)handle;
+
+ assert(fe->drawstatus != DRAWING);
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ if (StartDoc(fe->hdc, &fe->di) <= 0) {
+ char *e = geterrstr();
+ MessageBox(fe->hwnd, e, "Error starting to print",
+ MB_ICONERROR | MB_OK);
+ sfree(e);
+ fe->drawstatus = NOTHING;
+ }
+
+ /*
+ * Push a marker on the font stack so that we won't use the
+ * same fonts for printing and drawing. (This is because
+ * drawing seems to look generally better in bold, but printing
+ * is better not in bold.)
+ */
+ fe->fontstart = fe->nfonts;
+}
+
+static void win_begin_page(void *handle, int number)
+{
+ frontend *fe = (frontend *)handle;
+
+ assert(fe->drawstatus != DRAWING);
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ if (StartPage(fe->hdc) <= 0) {
+ char *e = geterrstr();
+ MessageBox(fe->hwnd, e, "Error starting a page",
+ MB_ICONERROR | MB_OK);
+ sfree(e);
+ fe->drawstatus = NOTHING;
+ }
+}
+
+static void win_begin_puzzle(void *handle, float xm, float xc,
+ float ym, float yc, int pw, int ph, float wmm)
+{
+ frontend *fe = (frontend *)handle;
+ int ppw, pph, pox, poy;
+ float mmpw, mmph, mmox, mmoy;
+ float scale;
+
+ assert(fe->drawstatus != DRAWING);
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ ppw = GetDeviceCaps(fe->hdc, HORZRES);
+ pph = GetDeviceCaps(fe->hdc, VERTRES);
+ mmpw = (float)GetDeviceCaps(fe->hdc, HORZSIZE);
+ mmph = (float)GetDeviceCaps(fe->hdc, VERTSIZE);
+
+ /*
+ * Compute the puzzle's position on the logical page.
+ */
+ mmox = xm * mmpw + xc;
+ mmoy = ym * mmph + yc;
+
+ /*
+ * Work out what that comes to in pixels.
+ */
+ pox = (int)(mmox * (float)ppw / mmpw);
+ poy = (int)(mmoy * (float)ppw / mmpw);
+
+ /*
+ * And determine the scale.
+ *
+ * I need a scale such that the maximum puzzle-coordinate
+ * extent of the rectangle (pw * scale) is equal to the pixel
+ * equivalent of the puzzle's millimetre width (wmm * ppw /
+ * mmpw).
+ */
+ scale = (wmm * ppw) / (mmpw * pw);
+
+ /*
+ * Now store pox, poy and scale for use in the main drawing
+ * functions.
+ */
+ fe->printoffsetx = pox;
+ fe->printoffsety = poy;
+ fe->printpixelscale = scale;
+
+ fe->linewidth = 1;
+}
+
+static void win_end_puzzle(void *handle)
+{
+ /* Nothing needs to be done here. */
+}
+
+static void win_end_page(void *handle, int number)
+{
+ frontend *fe = (frontend *)handle;
+
+ assert(fe->drawstatus != DRAWING);
+
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ if (EndPage(fe->hdc) <= 0) {
+ char *e = geterrstr();
+ MessageBox(fe->hwnd, e, "Error finishing a page",
+ MB_ICONERROR | MB_OK);
+ sfree(e);
+ fe->drawstatus = NOTHING;
+ }
+}
+
+static void win_end_doc(void *handle)
+{
+ frontend *fe = (frontend *)handle;
+
+ assert(fe->drawstatus != DRAWING);
+
+ /*
+ * Free all the fonts created since we began printing.
+ */
+ while (fe->nfonts > fe->fontstart) {
+ fe->nfonts--;
+ DeleteObject(fe->fonts[fe->nfonts].font);
+ }
+ fe->fontstart = 0;
+
+ /*
+ * The MSDN web site sample code doesn't bother to call EndDoc
+ * if an error occurs half way through printing. I expect doing
+ * so would cause the erroneous document to actually be
+ * printed, or something equally undesirable.
+ */
+ if (fe->drawstatus == NOTHING)
+ return;
+
+ if (EndDoc(fe->hdc) <= 0) {
+ char *e = geterrstr();
+ MessageBox(fe->hwnd, e, "Error finishing printing",
+ MB_ICONERROR | MB_OK);
+ sfree(e);
+ fe->drawstatus = NOTHING;
+ }
+}
+
+const struct drawing_api win_drawing = {
+ win_draw_text,
+ win_draw_rect,
+ win_draw_line,
+ win_draw_polygon,
+ win_draw_circle,
+ win_draw_update,
+ win_clip,
+ win_unclip,
+ win_start_draw,
+ win_end_draw,
+ win_status_bar,
+ win_blitter_new,
+ win_blitter_free,
+ win_blitter_save,
+ win_blitter_load,
+ win_begin_doc,
+ win_begin_page,
+ win_begin_puzzle,
+ win_end_puzzle,
+ win_end_page,
+ win_end_doc,
+ win_line_width,