static VALUE rg_set_tabs(VALUE self, VALUE tabs) { pango_layout_set_tabs(_SELF(self), (PangoTabArray*)RVAL2BOXED(tabs, PANGO_TYPE_TAB_ARRAY)); return self; }
void ui_insert_text(char *s, int x, int y, int h, int w, double *rgba, enum alignment align) { PangoTabArray *tabs; int height; pango_layout_set_width(ui->w[ui->cur].pangolayout, w * PANGO_SCALE); switch (align) { case RIGHT: pango_layout_set_alignment(ui->w[ui->cur].pangolayout, PANGO_ALIGN_RIGHT); break; case CENTER: pango_layout_set_alignment(ui->w[ui->cur].pangolayout, PANGO_ALIGN_CENTER); break; default: pango_layout_set_alignment(ui->w[ui->cur].pangolayout, PANGO_ALIGN_LEFT); } tabs = pango_tab_array_new_with_positions(1, TRUE, PANGO_TAB_LEFT, config.tabs); pango_layout_set_wrap(ui->w[ui->cur].pangolayout, PANGO_WRAP_WORD_CHAR); pango_layout_set_ellipsize(ui->w[ui->cur].pangolayout, PANGO_ELLIPSIZE_END); pango_layout_set_font_description(ui->w[ui->cur].pangolayout, ui->w[ui->cur].pangofont); pango_layout_set_tabs(ui->w[ui->cur].pangolayout, tabs); pango_layout_set_markup(ui->w[ui->cur].pangolayout, s, -1); cairo_set_source_rgba(ui->w[ui->cur].c, rgba[0], rgba[1], rgba[2], rgba[3]); pango_cairo_update_layout(ui->w[ui->cur].c, ui->w[ui->cur].pangolayout); pango_layout_get_pixel_size(ui->w[ui->cur].pangolayout, NULL, &height); /* use (h - height) / 2 to center-align vertically */ cairo_move_to(ui->w[ui->cur].c, x, y + (h - height) / 2); pango_cairo_show_layout(ui->w[ui->cur].c, ui->w[ui->cur].pangolayout); pango_tab_array_free(tabs); }
static VALUE rg_set_tabs(VALUE self, VALUE tabs) { pango_layout_set_tabs(_SELF(self), RVAL2PANGOTABARRAY(tabs)); return self; }
static void balsa_print_object_default_draw(BalsaPrintObject * self, GtkPrintContext * context, cairo_t * cairo_ctx) { BalsaPrintObjectDefault *pod; gdouble c_max_height; gdouble c_offset; PangoLayout *layout; PangoFontDescription *font; PangoTabArray *tabs; /* set up */ pod = BALSA_PRINT_OBJECT_DEFAULT(self); g_assert(pod != NULL); c_max_height = MAX(pod->c_text_height, pod->c_image_height); c_offset = pod->c_image_width + 4 * C_LABEL_SEP; /* print the icon */ if (pod->pixbuf) cairo_print_pixbuf(cairo_ctx, pod->pixbuf, self->c_at_x, self->c_at_y, 1.0); /* print the description */ font = pango_font_description_from_string(balsa_app.print_header_font); layout = gtk_print_context_create_pango_layout(context); pango_layout_set_font_description(layout, font); pango_font_description_free(font); pango_layout_set_indent(layout, -pod->p_label_width); tabs = pango_tab_array_new_with_positions(1, FALSE, PANGO_TAB_LEFT, pod->p_label_width); pango_layout_set_tabs(layout, tabs); pango_tab_array_free(tabs); pango_layout_set_width(layout, C_TO_P(self->c_width - c_offset)); pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT); pango_layout_set_text(layout, pod->description, -1); cairo_move_to(cairo_ctx, self->c_at_x + c_offset, self->c_at_y + (c_max_height - pod->c_text_height) * 0.5); pango_cairo_show_layout(cairo_ctx, layout); g_object_unref(G_OBJECT(layout)); }
static void cb_begin_print(GtkPrintOperation *op, GtkPrintContext *ctx, gpointer data) { gint layout_height; gchar *text; GtkTextIter start, end; GtkTextBuffer *buffer = gtk_text_view_get_buffer(data); PangoTabArray *tabs; gtk_text_buffer_get_bounds(buffer, &start, &end); text = g_strchomp(gtk_text_buffer_get_text(buffer, &start, &end, FALSE)); page_width = gtk_print_context_get_width(ctx); page_height = gtk_print_context_get_height(ctx); font_desc = gtk_widget_get_style(data)->font_desc; layout = gtk_print_context_create_pango_layout(ctx); pango_layout_set_width(layout, page_width * PANGO_SCALE); pango_layout_set_font_description(layout, font_desc); pango_layout_set_text(layout, text, -1); get_tab_array(&tabs, ctx, data); if (tabs) { pango_layout_set_tabs(layout, tabs); pango_tab_array_free(tabs); } pango_layout_get_size(layout, NULL, &layout_height); line_count = pango_layout_get_line_count(layout); text_height = pango_font_description_get_size(font_desc) / PANGO_SCALE; lines_per_page = page_height / text_height; n_pages = (line_count - 1) / lines_per_page + 1; gtk_print_operation_set_n_pages(op, n_pages); g_free(text); }
PangoLayout* gdip_pango_setup_layout (GpGraphics *graphics, GDIPCONST WCHAR *stringUnicode, int length, GDIPCONST GpFont *font, GDIPCONST RectF *rc, RectF *box, GDIPCONST GpStringFormat *format, int **charsRemoved) { GpStringFormat *fmt; PangoLayout *layout; PangoContext *context; PangoRectangle logical; /* logical size of text (used for alignment) */ PangoRectangle ink; /* ink size of text (to pixel boundaries) */ PangoAttrList *list = NULL; GString *ftext; PangoTabArray *tabs; PangoLayoutIter *iter; int i; int FrameWidth; /* rc->Width (or rc->Height if vertical) */ int FrameHeight; /* rc->Height (or rc->Width if vertical) */ int FrameX; /* rc->X (or rc->Y if vertical) */ int FrameY; /* rc->Y (or rc->X if vertical) */ int y0; /* y0,y1,clipNN used for checking line positions vs. clip rectangle */ int y1; double clipx1; double clipx2; double clipy1; double clipy2; int trimSpace; /* whether or not to trim the space */ gchar *text = ucs2_to_utf8 (stringUnicode, length); if (!text) return NULL; length = strlen(text); if (charsRemoved) { (*charsRemoved) = GdipAlloc (sizeof (int) * length); if (!*charsRemoved) { GdipFree (text); return NULL; } memset (*charsRemoved, 0, sizeof (int) * length); } /* TODO - Digit substitution */ // g_warning ("layout >%s< (%d) [x %g, y %g, w %g, h %g] [font %s, %g points]", text, length, rc->X, rc->Y, rc->Width, FrameHeight, font->face, font->emSize); /* a NULL format is valid, it means get the generic default values (and free them later) */ if (!format) { GpStatus status = GdipStringFormatGetGenericDefault ((GpStringFormat **)&fmt); if (status != Ok) { GdipFree (text); return NULL; } } else { fmt = (GpStringFormat *)format; } layout = pango_cairo_create_layout (graphics->ct); /* context is owned by Pango (i.e. not referenced counted) do not free */ context = pango_layout_get_context (layout); pango_layout_set_font_description (layout, gdip_get_pango_font_description ((GpFont*) font)); if (fmt->formatFlags & StringFormatFlagsDirectionVertical) { FrameWidth = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Height)); FrameHeight = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Width)); FrameX = SAFE_FLOAT_TO_UINT32 (rc->Y); FrameY = SAFE_FLOAT_TO_UINT32 (rc->X); } else { FrameWidth = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Width)); FrameHeight = MAKE_SAFE_FOR_PANGO (SAFE_FLOAT_TO_UINT32 (rc->Height)); FrameX = SAFE_FLOAT_TO_UINT32 (rc->X); FrameY = SAFE_FLOAT_TO_UINT32 (rc->Y); } //g_warning("FW: %d\tFH: %d", FrameWidth, FrameHeight); if ((FrameWidth <= 0) || (fmt->formatFlags & StringFormatFlagsNoWrap)) { pango_layout_set_width (layout, -1); //g_warning ("Setting width: %d", -1); } else { pango_layout_set_width (layout, FrameWidth * PANGO_SCALE); //g_warning ("Setting width: %d", FrameWidth * PANGO_SCALE); } if ((rc->Width != 0) && (rc->Height != 0) && ((fmt->formatFlags & StringFormatFlagsNoClip) == 0)) { // g_warning ("\tclip [%g %g %g %g]", rc->X, rc->Y, rc->Width, rc->Height); /* We do not call cairo_reset_clip because we want to take previous clipping into account */ /* Use rc instead of frame variables because this is pre-transform */ gdip_cairo_rectangle (graphics, rc->X, rc->Y, rc->Width, rc->Height, TRUE); cairo_clip (graphics->ct); } /* with GDI+ the API not the renderer makes the direction decision */ pango_layout_set_auto_dir (layout, FALSE); if (!(fmt->formatFlags & StringFormatFlagsDirectionRightToLeft) != !(fmt->formatFlags & StringFormatFlagsDirectionVertical)) { pango_context_set_base_dir (context, PANGO_DIRECTION_WEAK_RTL); pango_layout_context_changed (layout); /* horizontal alignment */ switch (fmt->alignment) { case StringAlignmentNear: pango_layout_set_alignment (layout, PANGO_ALIGN_RIGHT); break; case StringAlignmentCenter: pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER); break; case StringAlignmentFar: pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT); break; } } else { /* pango default base dir is WEAK_LTR, which is what we want */ /* horizontal alignment */ switch (fmt->alignment) { case StringAlignmentNear: pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT); break; case StringAlignmentCenter: pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER); break; case StringAlignmentFar: pango_layout_set_alignment (layout, PANGO_ALIGN_RIGHT); break; } } #ifdef PANGO_VERSION_CHECK #if PANGO_VERSION_CHECK(1,16,0) if (fmt->formatFlags & StringFormatFlagsDirectionVertical) { if (fmt->formatFlags & StringFormatFlagsDirectionRightToLeft) { cairo_rotate (graphics->ct, M_PI/2.0); cairo_translate (graphics->ct, 0, -FrameHeight); pango_cairo_update_context (graphics->ct, context); } else { cairo_rotate (graphics->ct, 3.0*M_PI/2.0); cairo_translate (graphics->ct, -FrameWidth, 0); pango_cairo_update_context (graphics->ct, context); } /* only since Pango 1.16 */ pango_context_set_base_gravity (context, PANGO_GRAVITY_AUTO); pango_context_set_gravity_hint (context, PANGO_GRAVITY_HINT_LINE); pango_layout_context_changed (layout); } #endif #endif /* TODO - StringFormatFlagsDisplayFormatControl scan and replace them ??? */ /* Trimming options seem to apply only to the end of the string - gdi+ will still wrap * with preference to word first, then character. Unfortunately, pango doesn't have * any way to differentiate wrapping behavior from trimming behavior that I could find */ pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR); switch (fmt->trimming) { case StringTrimmingNone: pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE); break; case StringTrimmingCharacter: pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE); break; case StringTrimmingWord: pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE); break; case StringTrimmingEllipsisCharacter: pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END); if (!(fmt->formatFlags & StringFormatFlagsNoWrap)) pango_layout_set_height (layout, FrameHeight == 0 ? G_MAXINT32 : FrameHeight * PANGO_SCALE); break; case StringTrimmingEllipsisWord: pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END); if (!(fmt->formatFlags & StringFormatFlagsNoWrap)) pango_layout_set_height (layout, FrameHeight == 0 ? G_MAXINT32 : FrameHeight * PANGO_SCALE); break; case StringTrimmingEllipsisPath: pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_MIDDLE); if (!(fmt->formatFlags & StringFormatFlagsNoWrap)) pango_layout_set_height (layout, FrameHeight == 0 ? G_MAXINT32 : FrameHeight * PANGO_SCALE); break; } /* some stuff can only be done by manipulating the attributes (but we can avoid this most of the time) */ if ((fmt->formatFlags & StringFormatFlagsNoFontFallback) || (font->style & (FontStyleUnderline | FontStyleStrikeout))) { list = gdip_get_layout_attributes (layout); /* StringFormatFlagsNoFontFallback */ if (fmt->formatFlags & StringFormatFlagsNoFontFallback) { PangoAttribute *attr = pango_attr_fallback_new (FALSE); attr->start_index = 0; attr->end_index = length; pango_attr_list_insert (list, attr); } if (font->style & FontStyleUnderline) { PangoAttribute *attr = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE); attr->start_index = 0; attr->end_index = length; pango_attr_list_insert (list, attr); } if (font->style & FontStyleStrikeout) { PangoAttribute *attr = pango_attr_strikethrough_new (TRUE); attr->start_index = 0; attr->end_index = length; pango_attr_list_insert (list, attr); } } if (fmt->numtabStops > 0) { float tabPosition; tabs = pango_tab_array_new (fmt->numtabStops, FALSE); tabPosition = fmt->firstTabOffset; for (i = 0; i < fmt->numtabStops; i++) { tabPosition += fmt->tabStops[i]; pango_tab_array_set_tab (tabs, i, PANGO_TAB_LEFT, (gint)min (tabPosition, PANGO_MAX) * PANGO_SCALE); } pango_layout_set_tabs (layout, tabs); pango_tab_array_free (tabs); } //g_warning ("length before ws removal: %d", length); trimSpace = (fmt->formatFlags & StringFormatFlagsMeasureTrailingSpaces) == 0; switch (fmt->hotkeyPrefix) { case HotkeyPrefixHide: /* we need to remove any accelerator from the string */ ftext = gdip_process_string (text, length, 1, trimSpace, NULL, charsRemoved); break; case HotkeyPrefixShow: /* optimization: is seems that we never see the hotkey when using an underline font */ if (font->style & FontStyleUnderline) { /* so don't bother drawing it (and simply add the '&' character) */ ftext = gdip_process_string (text, length, 1, trimSpace, NULL, charsRemoved); } else { /* find accelerator and add attribute to the next character (unless it's the prefix too) */ if (!list) list = gdip_get_layout_attributes (layout); ftext = gdip_process_string (text, length, 1, trimSpace, list, charsRemoved); } break; default: ftext = gdip_process_string (text, length, 0, trimSpace, NULL, charsRemoved); break; } length = ftext->len; //g_warning ("length after ws removal: %d", length); if (list) { pango_layout_set_attributes (layout, list); pango_attr_list_unref (list); } // g_warning("\tftext>%s< (%d)", ftext->str, -1); pango_layout_set_text (layout, ftext->str, ftext->len); GdipFree (text); g_string_free(ftext, TRUE); /* Trim the text after the last line for ease of counting lines/characters */ /* Also prevents drawing whole lines outside the boundaries if NoClip was specified */ /* In case of pre-existing clipping, use smaller of clip rectangle or our specified height */ if (FrameHeight > 0) { cairo_clip_extents (graphics->ct, &clipx1, &clipy1, &clipx2, &clipy2); if (clipy2 > 0 && !(fmt->formatFlags & StringFormatFlagsNoClip)) clipy2 = min (clipy2, FrameHeight + FrameY); else clipy2 = FrameHeight + FrameY; iter = pango_layout_get_iter (layout); do { if (iter == NULL) break; pango_layout_iter_get_line_yrange (iter, &y0, &y1); //g_warning("yrange: %d %d clipy2: %f", y0 / PANGO_SCALE, y1 / PANGO_SCALE, clipy2); /* StringFormatFlagsLineLimit */ if (((fmt->formatFlags & StringFormatFlagsLineLimit) && y1 / PANGO_SCALE > clipy2) || (y0 / PANGO_SCALE > clipy2)) { PangoLayoutLine *line = pango_layout_iter_get_line_readonly (iter); pango_layout_set_text (layout, pango_layout_get_text (layout), line->start_index); break; } } while (pango_layout_iter_next_line (iter)); pango_layout_iter_free (iter); } pango_layout_get_pixel_extents (layout, &ink, &logical); // g_warning ("\tlogical\t[x %d, y %d, w %d, h %d][x %d, y %d, w %d, h %d]", logical.x, logical.y, logical.width, logical.height, ink.x, ink.y, ink.width, ink.height); if ((fmt->formatFlags & StringFormatFlagsNoFitBlackBox) == 0) { /* By default don't allow overhang - ink space may be larger than logical space */ if (fmt->formatFlags & StringFormatFlagsDirectionVertical) { box->X = min (ink.y, logical.y); box->Y = min (ink.x, logical.x); box->Height = max (ink.width, logical.width); box->Width = max (ink.height, logical.height); } else { box->X = min (ink.x, logical.x); box->Y = min (ink.y, logical.y); box->Height = max (ink.height, logical.height); box->Width = max (ink.width, logical.width); } } else { /* Allow overhang */ if (fmt->formatFlags & StringFormatFlagsDirectionVertical) { box->X = logical.y; box->Y = logical.x; box->Height = logical.width; box->Width = logical.height; } else { box->X = logical.x; box->Y = logical.y; box->Height = logical.height; box->Width = logical.width; } } // g_warning ("\tbox\t[x %g, y %g, w %g, h %g]", box->X, box->Y, box->Width, box->Height); /* vertical alignment*/ if (fmt->formatFlags & StringFormatFlagsDirectionVertical) { switch (fmt->lineAlignment) { case StringAlignmentNear: break; case StringAlignmentCenter: box->X += (rc->Width - box->Width) / 2; break; case StringAlignmentFar: box->X += (rc->Width - box->Width); break; } } else { switch (fmt->lineAlignment) { case StringAlignmentNear: break; case StringAlignmentCenter: box->Y += (rc->Height - box->Height) / 2; break; case StringAlignmentFar: box->Y += (rc->Height - box->Height); break; } } // g_warning ("va-box\t[x %g, y %g, w %g, h %g]", box->X, box->Y, box->Width, box->Height); pango_cairo_update_layout (graphics->ct, layout); return layout; }
GList * balsa_print_object_default(GList * list, GtkPrintContext * context, LibBalsaMessageBody * body, BalsaPrintSetup * psetup) { BalsaPrintObjectDefault *pod; BalsaPrintObject *po; gchar *conttype; PangoFontDescription *header_font; PangoLayout *test_layout; PangoTabArray *tabs; GString *desc_buf; gdouble c_max_height; gchar *part_desc; pod = g_object_new(BALSA_TYPE_PRINT_OBJECT_DEFAULT, NULL); g_assert(pod != NULL); po = BALSA_PRINT_OBJECT(pod); /* create the part */ po->depth = psetup->curr_depth; po->c_width = psetup->c_width - 2 * psetup->curr_depth * C_LABEL_SEP; /* get a pixbuf according to the mime type */ conttype = libbalsa_message_body_get_mime_type(body); pod->pixbuf = libbalsa_icon_finder(NULL, conttype, NULL, NULL, GTK_ICON_SIZE_DND); pod->c_image_width = gdk_pixbuf_get_width(pod->pixbuf); pod->c_image_height = gdk_pixbuf_get_height(pod->pixbuf); /* create a layout for calculating the maximum label width */ header_font = pango_font_description_from_string(balsa_app.print_header_font); test_layout = gtk_print_context_create_pango_layout(context); pango_layout_set_font_description(test_layout, header_font); pango_font_description_free(header_font); desc_buf = g_string_new(""); /* add type and filename (if available) */ pod->p_label_width = p_string_width_from_layout(test_layout, _("Type:")); if ((part_desc = libbalsa_vfs_content_description(conttype))) g_string_append_printf(desc_buf, "%s\t%s (%s)", _("Type:"), part_desc, conttype); else g_string_append_printf(desc_buf, "%s\t%s", _("Type:"), conttype); g_free(part_desc); g_free(conttype); if (body->filename) { gint p_fnwidth = p_string_width_from_layout(test_layout, _("File name:")); if (p_fnwidth > pod->p_label_width) pod->p_label_width = p_fnwidth; g_string_append_printf(desc_buf, "\n%s\t%s", _("File name:"), body->filename); } /* add a small space between label and value */ pod->p_label_width += C_TO_P(C_LABEL_SEP); /* configure the layout so we can calculate the text height */ pango_layout_set_indent(test_layout, -pod->p_label_width); tabs = pango_tab_array_new_with_positions(1, FALSE, PANGO_TAB_LEFT, pod->p_label_width); pango_layout_set_tabs(test_layout, tabs); pango_tab_array_free(tabs); pango_layout_set_width(test_layout, C_TO_P(po->c_width - 4 * C_LABEL_SEP - pod->c_image_width)); pango_layout_set_alignment(test_layout, PANGO_ALIGN_LEFT); pod->c_text_height = P_TO_C(p_string_height_from_layout(test_layout, desc_buf->str)); pod->description = g_string_free(desc_buf, FALSE); /* check if we should move to the next page */ c_max_height = MAX(pod->c_text_height, pod->c_image_height); if (psetup->c_y_pos + c_max_height > psetup->c_height) { psetup->c_y_pos = 0; psetup->page_count++; } /* remember the extent */ po->on_page = psetup->page_count - 1; po->c_at_x = psetup->c_x0 + po->depth * C_LABEL_SEP; po->c_at_y = psetup->c_y0 + psetup->c_y_pos; po->c_width = psetup->c_width - 2 * po->depth * C_LABEL_SEP; po->c_height = c_max_height; /* adjust the y position */ psetup->c_y_pos += c_max_height; return g_list_append(list, po); }