static GF_Err gdip_get_text_size(GF_FontReader *dr, const unsigned short *string, Fixed *width, Fixed *height) { GpPath *path_tmp; GpStringFormat *fmt; FontPriv *ctx = (FontPriv *)dr->udta; *width = *height = 0; if (!ctx->font) return GF_BAD_PARAM; GdipCreateStringFormat(StringFormatFlagsNoWrap, LANG_NEUTRAL, &fmt); GdipCreatePath(FillModeAlternate, &path_tmp); RectF rc; rc.X = rc.Y = 0; rc.Width = rc.Height = 0; GdipAddPathString(path_tmp, (const WCHAR *)string, -1, ctx->font, ctx->font_style, ctx->em_size, &rc, fmt); GdipGetPathWorldBounds(path_tmp, &rc, NULL, NULL); adjust_white_space(string, &rc.Width, ctx->whitespace_width); *width = FLT2FIX(rc.Width); *height = FLT2FIX(rc.Height); GdipDeleteStringFormat(fmt); GdipDeletePath(path_tmp); return GF_OK; }
static M4Err gdip_get_text_size(FontRaster *dr, const unsigned short *string, Float *width, Float *height) { GpPath *path_tmp; GpStringFormat *fmt; FontPriv *ctx = (FontPriv *)dr->priv; *width = *height = 0.0; if (!ctx->font) return M4BadParam; GdipCreateStringFormat(StringFormatFlagsNoWrap, LANG_NEUTRAL, &fmt); GdipCreatePath(FillModeAlternate, &path_tmp); RectF rc; rc.X = rc.Y = 0; rc.Width = rc.Height = 0; GdipAddPathString(path_tmp, string, -1, ctx->font, ctx->font_style, ctx->font_size, &rc, fmt); GdipGetPathWorldBounds(path_tmp, &rc, NULL, NULL); *width = rc.Width; *height = rc.Height; adjust_white_space(string, width, ctx->whitespace_width ); GdipDeleteStringFormat(fmt); GdipDeletePath(path_tmp); return M4OK; }
static M4Err gdip_add_text_to_path(FontRaster *dr, LPM4PATH path, Bool flipText, const unsigned short* string, Float left, Float top, Float x_scaling, Float y_scaling, Float ascent, M4Rect *bounds) { GpPath *path_tmp; GpMatrix *mat; GpStringFormat *fmt; Float real_start; unsigned short str[4]; FontPriv *ctx = (FontPriv *)dr->priv; if (!ctx->font) return M4BadParam; RectF rc; rc.X = rc.Y = 0; rc.Width = rc.Height = 0; /*find first non-space char and estimate its glyph pos since GDIplus doesn't give this info*/ s32 len = utf8_wcslen(string); s32 i=0; for (; i<len; i++) { if (string[i] != (unsigned short) ' ') break; } if (i>=len) return M4OK; GdipCreateStringFormat(StringFormatFlagsNoWrap | StringFormatFlagsNoFitBlackBox | StringFormatFlagsMeasureTrailingSpaces, LANG_NEUTRAL, &fmt); GdipSetStringFormatAlign(fmt, StringAlignmentNear); GdipCreatePath(FillModeAlternate, &path_tmp); /*to compute first glyph alignment (say 'x', we figure out its bounding full box by using the '_' char as wrapper (eg, "_x_") then the bounding box starting from xMin of the glyph ('x_'). The difference between both will give us a good approx of the glyph alignment*/ str[0] = (unsigned short) '_'; str[1] = string[i]; str[2] = (unsigned short) '_'; str[3] = (unsigned short) 0; GdipAddPathString(path_tmp, str, -1, ctx->font, ctx->font_style, ctx->font_size, &rc, fmt); GdipGetPathWorldBounds(path_tmp, &rc, NULL, NULL); Float w1 = rc.Width - 2 * ctx->underscore_width; GdipResetPath(path_tmp); str[0] = string[i]; str[1] = (unsigned short) '_'; str[2] = (unsigned short) 0; rc.X = rc.Y = 0; rc.Width = rc.Height = 0; GdipAddPathString(path_tmp, str, -1, ctx->font, ctx->font_style, ctx->font_size, &rc, fmt); GdipGetPathWorldBounds(path_tmp, &rc, NULL, NULL); real_start = w1 - (rc.Width - ctx->underscore_width); GdipResetPath(path_tmp); rc.X = rc.Y = 0; rc.Width = rc.Height = 0; GdipAddPathString(path_tmp, string, -1, ctx->font, ctx->font_style, ctx->font_size, &rc, fmt); GdipGetPathWorldBounds(path_tmp, &rc, NULL, NULL); GdipCreateMatrix(&mat); Float off_left = rc.X; Float off_left_real = rc.X; /*adjust all white space at begin*/ adjust_white_space(string, &off_left, -1*ctx->whitespace_width); if (flipText) { /*first translate in local system*/ GdipTranslateMatrix(mat, left - off_left + real_start, -top, MatrixOrderAppend); /*then scale as specified*/ GdipScaleMatrix(mat, x_scaling, -y_scaling, MatrixOrderAppend); } else { /*first translate in local system*/ GdipTranslateMatrix(mat, left - off_left + real_start, top-ascent, MatrixOrderAppend); /*then scale as specified*/ GdipScaleMatrix(mat, x_scaling, y_scaling, MatrixOrderAppend); } GdipTransformPath(path_tmp, mat); /*start enum*/ s32 count; GdipGetPointCount(path_tmp, &count); GpPointF *pts = new GpPointF[count]; BYTE *types = new BYTE[count]; GdipGetPathTypes(path_tmp, types, count); GdipGetPathPoints(path_tmp, pts, count); for (i=0; i<count; ) { BOOL closed = 0; s32 sub_type; sub_type = types[i] & PathPointTypePathTypeMask; if (sub_type == PathPointTypeStart) { m4_path_add_move_to(path, pts[i].X, pts[i].Y); i++; } else if (sub_type == PathPointTypeLine) { m4_path_add_line_to(path, pts[i].X, pts[i].Y); if (types[i] & PathPointTypeCloseSubpath) m4_path_close(path); i++; } else if (sub_type == PathPointTypeBezier) { assert(i+2<=count); m4_path_add_cubic_to(path, pts[i].X, pts[i].Y, pts[i+1].X, pts[i+1].Y, pts[i+2].X, pts[i+2].Y); if (types[i+2] & PathPointTypeCloseSubpath) m4_path_close(path); i += 3; } else { assert(0); break; } } delete [] pts; delete [] types; GdipResetPath(path_tmp); adjust_white_space(string, &rc.Width, ctx->whitespace_width); rc.X = off_left_real; rc.X = off_left; /*special case where string is just space*/ if (!rc.Height) rc.Height = 1; GdipAddPathRectangles(path_tmp, &rc, 1); GdipGetPathWorldBounds(path_tmp, &rc, mat, NULL); bounds->x = rc.X; bounds->y = rc.Y; bounds->width = rc.Width; bounds->height = rc.Height; GdipDeleteStringFormat(fmt); GdipDeletePath(path_tmp); GdipDeleteMatrix(mat); return M4OK; }