/* gtkcellrenderertext.c * Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include #include "gtkcellrenderertext.h" #include "gtkeditable.h" #include "gtkentry.h" #include "gtkmarshalers.h" #include "gtkintl.h" #include "gtktreeprivate.h" static void gtk_cell_renderer_text_init (GtkCellRendererText *celltext); static void gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class); static void gtk_cell_renderer_text_finalize (GObject *object); static void gtk_cell_renderer_text_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec); static void gtk_cell_renderer_text_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec); static void gtk_cell_renderer_text_get_size (GtkCellRenderer *cell, GtkWidget *widget, GdkRectangle *cell_area, gint *x_offset, gint *y_offset, gint *width, gint *height); static void gtk_cell_renderer_text_render (GtkCellRenderer *cell, GdkWindow *window, GtkWidget *widget, GdkRectangle *background_area, GdkRectangle *cell_area, GdkRectangle *expose_area, GtkCellRendererState flags); static GtkCellEditable *gtk_cell_renderer_text_start_editing (GtkCellRenderer *cell, GdkEvent *event, GtkWidget *widget, const gchar *path, GdkRectangle *background_area, GdkRectangle *cell_area, GtkCellRendererState flags); enum { EDITED, LAST_SIGNAL }; enum { PROP_0, PROP_TEXT, PROP_MARKUP, PROP_ATTRIBUTES, /* Style args */ PROP_BACKGROUND, PROP_FOREGROUND, PROP_BACKGROUND_GDK, PROP_FOREGROUND_GDK, PROP_FONT, PROP_FONT_DESC, PROP_FAMILY, PROP_STYLE, PROP_VARIANT, PROP_WEIGHT, PROP_STRETCH, PROP_SIZE, PROP_SIZE_POINTS, PROP_SCALE, PROP_EDITABLE, PROP_STRIKETHROUGH, PROP_UNDERLINE, PROP_RISE, /* Whether-a-style-arg-is-set args */ PROP_BACKGROUND_SET, PROP_FOREGROUND_SET, PROP_FAMILY_SET, PROP_STYLE_SET, PROP_VARIANT_SET, PROP_WEIGHT_SET, PROP_STRETCH_SET, PROP_SIZE_SET, PROP_SCALE_SET, PROP_EDITABLE_SET, PROP_STRIKETHROUGH_SET, PROP_UNDERLINE_SET, PROP_RISE_SET }; static gpointer parent_class; static guint text_cell_renderer_signals [LAST_SIGNAL]; #define GTK_CELL_RENDERER_TEXT_PATH "gtk-cell-renderer-text-path" GType gtk_cell_renderer_text_get_type (void) { static GType cell_text_type = 0; if (!cell_text_type) { static const GTypeInfo cell_text_info = { sizeof (GtkCellRendererTextClass), NULL, /* base_init */ NULL, /* base_finalize */ (GClassInitFunc) gtk_cell_renderer_text_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GtkCellRendererText), 0, /* n_preallocs */ (GInstanceInitFunc) gtk_cell_renderer_text_init, }; cell_text_type = g_type_register_static (GTK_TYPE_CELL_RENDERER, "GtkCellRendererText", &cell_text_info, 0); } return cell_text_type; } static void gtk_cell_renderer_text_init (GtkCellRendererText *celltext) { GTK_CELL_RENDERER (celltext)->xalign = 0.0; GTK_CELL_RENDERER (celltext)->yalign = 0.5; GTK_CELL_RENDERER (celltext)->xpad = 2; GTK_CELL_RENDERER (celltext)->ypad = 2; celltext->fixed_height_rows = -1; celltext->font = pango_font_description_new (); } static void gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class) { GObjectClass *object_class = G_OBJECT_CLASS (class); GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class); parent_class = g_type_class_peek_parent (class); object_class->finalize = gtk_cell_renderer_text_finalize; object_class->get_property = gtk_cell_renderer_text_get_property; object_class->set_property = gtk_cell_renderer_text_set_property; cell_class->get_size = gtk_cell_renderer_text_get_size; cell_class->render = gtk_cell_renderer_text_render; cell_class->start_editing = gtk_cell_renderer_text_start_editing; g_object_class_install_property (object_class, PROP_TEXT, g_param_spec_string ("text", _("Text"), _("Text to render"), NULL, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_MARKUP, g_param_spec_string ("markup", _("Markup"), _("Marked up text to render"), NULL, G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_ATTRIBUTES, g_param_spec_boxed ("attributes", _("Attributes"), _("A list of style attributes to apply to the text of the renderer"), PANGO_TYPE_ATTR_LIST, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_BACKGROUND, g_param_spec_string ("background", _("Background color name"), _("Background color as a string"), NULL, G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_BACKGROUND_GDK, g_param_spec_boxed ("background_gdk", _("Background color"), _("Background color as a GdkColor"), GDK_TYPE_COLOR, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_FOREGROUND, g_param_spec_string ("foreground", _("Foreground color name"), _("Foreground color as a string"), NULL, G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_FOREGROUND_GDK, g_param_spec_boxed ("foreground_gdk", _("Foreground color"), _("Foreground color as a GdkColor"), GDK_TYPE_COLOR, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_EDITABLE, g_param_spec_boolean ("editable", _("Editable"), _("Whether the text can be modified by the user"), FALSE, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_FONT, g_param_spec_string ("font", _("Font"), _("Font description as a string"), NULL, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_FONT_DESC, g_param_spec_boxed ("font_desc", _("Font"), _("Font description as a PangoFontDescription struct"), PANGO_TYPE_FONT_DESCRIPTION, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_FAMILY, g_param_spec_string ("family", _("Font family"), _("Name of the font family, e.g. Sans, Helvetica, Times, Monospace"), NULL, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_STYLE, g_param_spec_enum ("style", _("Font style"), _("Font style"), PANGO_TYPE_STYLE, PANGO_STYLE_NORMAL, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_VARIANT, g_param_spec_enum ("variant", _("Font variant"), _("Font variant"), PANGO_TYPE_VARIANT, PANGO_VARIANT_NORMAL, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_WEIGHT, g_param_spec_int ("weight", _("Font weight"), _("Font weight"), 0, G_MAXINT, PANGO_WEIGHT_NORMAL, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_STRETCH, g_param_spec_enum ("stretch", _("Font stretch"), _("Font stretch"), PANGO_TYPE_STRETCH, PANGO_STRETCH_NORMAL, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_SIZE, g_param_spec_int ("size", _("Font size"), _("Font size"), 0, G_MAXINT, 0, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_SIZE_POINTS, g_param_spec_double ("size_points", _("Font points"), _("Font size in points"), 0.0, G_MAXDOUBLE, 0.0, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_SCALE, g_param_spec_double ("scale", _("Font scale"), _("Font scaling factor"), 0.0, G_MAXDOUBLE, 1.0, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_RISE, g_param_spec_int ("rise", _("Rise"), _("Offset of text above the baseline (below the baseline if rise is negative)"), -G_MAXINT, G_MAXINT, 0, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_STRIKETHROUGH, g_param_spec_boolean ("strikethrough", _("Strikethrough"), _("Whether to strike through the text"), FALSE, G_PARAM_READABLE | G_PARAM_WRITABLE)); g_object_class_install_property (object_class, PROP_UNDERLINE, g_param_spec_enum ("underline", _("Underline"), _("Style of underline for this text"), PANGO_TYPE_UNDERLINE, PANGO_UNDERLINE_NONE, G_PARAM_READABLE | G_PARAM_WRITABLE)); /* Style props are set or not */ #define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (object_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, G_PARAM_READABLE | G_PARAM_WRITABLE)) ADD_SET_PROP ("background_set", PROP_BACKGROUND_SET, _("Background set"), _("Whether this tag affects the background color")); ADD_SET_PROP ("foreground_set", PROP_FOREGROUND_SET, _("Foreground set"), _("Whether this tag affects the foreground color")); ADD_SET_PROP ("editable_set", PROP_EDITABLE_SET, _("Editability set"), _("Whether this tag affects text editability")); ADD_SET_PROP ("family_set", PROP_FAMILY_SET, _("Font family set"), _("Whether this tag affects the font family")); ADD_SET_PROP ("style_set", PROP_STYLE_SET, _("Font style set"), _("Whether this tag affects the font style")); ADD_SET_PROP ("variant_set", PROP_VARIANT_SET, _("Font variant set"), _("Whether this tag affects the font variant")); ADD_SET_PROP ("weight_set", PROP_WEIGHT_SET, _("Font weight set"), _("Whether this tag affects the font weight")); ADD_SET_PROP ("stretch_set", PROP_STRETCH_SET, _("Font stretch set"), _("Whether this tag affects the font stretch")); ADD_SET_PROP ("size_set", PROP_SIZE_SET, _("Font size set"), _("Whether this tag affects the font size")); ADD_SET_PROP ("scale_set", PROP_SCALE_SET, _("Font scale set"), _("Whether this tag scales the font size by a factor")); ADD_SET_PROP ("rise_set", PROP_RISE_SET, _("Rise set"), _("Whether this tag affects the rise")); ADD_SET_PROP ("strikethrough_set", PROP_STRIKETHROUGH_SET, _("Strikethrough set"), _("Whether this tag affects strikethrough")); ADD_SET_PROP ("underline_set", PROP_UNDERLINE_SET, _("Underline set"), _("Whether this tag affects underlining")); text_cell_renderer_signals [EDITED] = g_signal_new ("edited", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkCellRendererTextClass, edited), NULL, NULL, _gtk_marshal_VOID__STRING_STRING, G_TYPE_NONE, 2, G_TYPE_STRING, G_TYPE_STRING); } static void gtk_cell_renderer_text_finalize (GObject *object) { GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object); pango_font_description_free (celltext->font); if (celltext->text) g_free (celltext->text); if (celltext->extra_attrs) pango_attr_list_unref (celltext->extra_attrs); (* G_OBJECT_CLASS (parent_class)->finalize) (object); } static PangoFontMask get_property_font_set_mask (guint prop_id) { switch (prop_id) { case PROP_FAMILY_SET: return PANGO_FONT_MASK_FAMILY; case PROP_STYLE_SET: return PANGO_FONT_MASK_STYLE; case PROP_VARIANT_SET: return PANGO_FONT_MASK_VARIANT; case PROP_WEIGHT_SET: return PANGO_FONT_MASK_WEIGHT; case PROP_STRETCH_SET: return PANGO_FONT_MASK_STRETCH; case PROP_SIZE_SET: return PANGO_FONT_MASK_SIZE; } return 0; } static void gtk_cell_renderer_text_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec) { GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object); switch (param_id) { case PROP_TEXT: g_value_set_string (value, celltext->text); break; case PROP_ATTRIBUTES: g_value_set_boxed (value, celltext->extra_attrs); break; case PROP_BACKGROUND_GDK: { GdkColor color; color.red = celltext->background.red; color.green = celltext->background.green; color.blue = celltext->background.blue; g_value_set_boxed (value, &color); } break; case PROP_FOREGROUND_GDK: { GdkColor color; color.red = celltext->foreground.red; color.green = celltext->foreground.green; color.blue = celltext->foreground.blue; g_value_set_boxed (value, &color); } break; case PROP_FONT: { /* FIXME GValue imposes a totally gratuitous string copy * here, we could just hand off string ownership */ gchar *str = pango_font_description_to_string (celltext->font); g_value_set_string (value, str); g_free (str); } break; case PROP_FONT_DESC: g_value_set_boxed (value, celltext->font); break; case PROP_FAMILY: g_value_set_string (value, pango_font_description_get_family (celltext->font)); break; case PROP_STYLE: g_value_set_enum (value, pango_font_description_get_style (celltext->font)); break; case PROP_VARIANT: g_value_set_enum (value, pango_font_description_get_variant (celltext->font)); break; case PROP_WEIGHT: g_value_set_int (value, pango_font_description_get_weight (celltext->font)); break; case PROP_STRETCH: g_value_set_enum (value, pango_font_description_get_stretch (celltext->font)); break; case PROP_SIZE: g_value_set_int (value, pango_font_description_get_size (celltext->font)); break; case PROP_SIZE_POINTS: g_value_set_double (value, ((double)pango_font_description_get_size (celltext->font)) / (double)PANGO_SCALE); break; case PROP_SCALE: g_value_set_double (value, celltext->font_scale); break; case PROP_EDITABLE: g_value_set_boolean (value, celltext->editable); break; case PROP_STRIKETHROUGH: g_value_set_boolean (value, celltext->strikethrough); break; case PROP_UNDERLINE: g_value_set_enum (value, celltext->underline_style); break; case PROP_RISE: g_value_set_int (value, celltext->rise); break; case PROP_BACKGROUND_SET: g_value_set_boolean (value, celltext->background_set); break; case PROP_FOREGROUND_SET: g_value_set_boolean (value, celltext->foreground_set); break; case PROP_FAMILY_SET: case PROP_STYLE_SET: case PROP_VARIANT_SET: case PROP_WEIGHT_SET: case PROP_STRETCH_SET: case PROP_SIZE_SET: { PangoFontMask mask = get_property_font_set_mask (param_id); g_value_set_boolean (value, (pango_font_description_get_set_fields (celltext->font) & mask) != 0); break; } case PROP_SCALE_SET: g_value_set_boolean (value, celltext->scale_set); break; case PROP_EDITABLE_SET: g_value_set_boolean (value, celltext->editable_set); break; case PROP_STRIKETHROUGH_SET: g_value_set_boolean (value, celltext->strikethrough_set); break; case PROP_UNDERLINE_SET: g_value_set_boolean (value, celltext->underline_set); break; case PROP_RISE_SET: g_value_set_boolean (value, celltext->rise_set); break; case PROP_BACKGROUND: case PROP_FOREGROUND: case PROP_MARKUP: default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } static void set_bg_color (GtkCellRendererText *celltext, GdkColor *color) { if (color) { if (!celltext->background_set) { celltext->background_set = TRUE; g_object_notify (G_OBJECT (celltext), "background_set"); } celltext->background.red = color->red; celltext->background.green = color->green; celltext->background.blue = color->blue; } else { if (celltext->background_set) { celltext->background_set = FALSE; g_object_notify (G_OBJECT (celltext), "background_set"); } } } static void set_fg_color (GtkCellRendererText *celltext, GdkColor *color) { if (color) { if (!celltext->foreground_set) { celltext->foreground_set = TRUE; g_object_notify (G_OBJECT (celltext), "foreground_set"); } celltext->foreground.red = color->red; celltext->foreground.green = color->green; celltext->foreground.blue = color->blue; } else { if (celltext->foreground_set) { celltext->foreground_set = FALSE; g_object_notify (G_OBJECT (celltext), "foreground_set"); } } } static PangoFontMask set_font_desc_fields (PangoFontDescription *desc, PangoFontMask to_set) { PangoFontMask changed_mask = 0; if (to_set & PANGO_FONT_MASK_FAMILY) { const char *family = pango_font_description_get_family (desc); if (!family) { family = "sans"; changed_mask |= PANGO_FONT_MASK_FAMILY; } pango_font_description_set_family (desc, family); } if (to_set & PANGO_FONT_MASK_STYLE) pango_font_description_set_style (desc, pango_font_description_get_style (desc)); if (to_set & PANGO_FONT_MASK_VARIANT) pango_font_description_set_variant (desc, pango_font_description_get_variant (desc)); if (to_set & PANGO_FONT_MASK_WEIGHT) pango_font_description_set_weight (desc, pango_font_description_get_weight (desc)); if (to_set & PANGO_FONT_MASK_STRETCH) pango_font_description_set_stretch (desc, pango_font_description_get_stretch (desc)); if (to_set & PANGO_FONT_MASK_SIZE) { gint size = pango_font_description_get_size (desc); if (size <= 0) { size = 10 * PANGO_SCALE; changed_mask |= PANGO_FONT_MASK_SIZE; } pango_font_description_set_size (desc, size); } return changed_mask; } static void notify_set_changed (GObject *object, PangoFontMask changed_mask) { if (changed_mask & PANGO_FONT_MASK_FAMILY) g_object_notify (object, "family_set"); if (changed_mask & PANGO_FONT_MASK_STYLE) g_object_notify (object, "style_set"); if (changed_mask & PANGO_FONT_MASK_VARIANT) g_object_notify (object, "variant_set"); if (changed_mask & PANGO_FONT_MASK_WEIGHT) g_object_notify (object, "weight_set"); if (changed_mask & PANGO_FONT_MASK_STRETCH) g_object_notify (object, "stretch_set"); if (changed_mask & PANGO_FONT_MASK_SIZE) g_object_notify (object, "size_set"); } static void notify_fields_changed (GObject *object, PangoFontMask changed_mask) { if (changed_mask & PANGO_FONT_MASK_FAMILY) g_object_notify (object, "family"); if (changed_mask & PANGO_FONT_MASK_STYLE) g_object_notify (object, "style"); if (changed_mask & PANGO_FONT_MASK_VARIANT) g_object_notify (object, "variant"); if (changed_mask & PANGO_FONT_MASK_WEIGHT) g_object_notify (object, "weight"); if (changed_mask & PANGO_FONT_MASK_STRETCH) g_object_notify (object, "stretch"); if (changed_mask & PANGO_FONT_MASK_SIZE) g_object_notify (object, "size"); } static void set_font_description (GtkCellRendererText *celltext, PangoFontDescription *font_desc) { GObject *object = G_OBJECT (celltext); PangoFontDescription *new_font_desc; PangoFontMask old_mask, new_mask, changed_mask, set_changed_mask; if (font_desc) new_font_desc = pango_font_description_copy (font_desc); else new_font_desc = pango_font_description_new (); old_mask = pango_font_description_get_set_fields (celltext->font); new_mask = pango_font_description_get_set_fields (new_font_desc); changed_mask = old_mask | new_mask; set_changed_mask = old_mask ^ new_mask; pango_font_description_free (celltext->font); celltext->font = new_font_desc; g_object_freeze_notify (object); g_object_notify (object, "font_desc"); g_object_notify (object, "font"); if (changed_mask & PANGO_FONT_MASK_FAMILY) g_object_notify (object, "family"); if (changed_mask & PANGO_FONT_MASK_STYLE) g_object_notify (object, "style"); if (changed_mask & PANGO_FONT_MASK_VARIANT) g_object_notify (object, "variant"); if (changed_mask & PANGO_FONT_MASK_WEIGHT) g_object_notify (object, "weight"); if (changed_mask & PANGO_FONT_MASK_STRETCH) g_object_notify (object, "stretch"); if (changed_mask & PANGO_FONT_MASK_SIZE) { g_object_notify (object, "size"); g_object_notify (object, "size_points"); } notify_set_changed (object, set_changed_mask); g_object_thaw_notify (object); } static void gtk_cell_renderer_text_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec) { GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object); switch (param_id) { case PROP_TEXT: if (celltext->text) g_free (celltext->text); celltext->text = g_strdup (g_value_get_string (value)); g_object_notify (object, "text"); break; case PROP_ATTRIBUTES: if (celltext->extra_attrs) pango_attr_list_unref (celltext->extra_attrs); celltext->extra_attrs = g_value_get_boxed (value); if (celltext->extra_attrs) pango_attr_list_ref (celltext->extra_attrs); break; case PROP_MARKUP: { const gchar *str; gchar *text = NULL; GError *error = NULL; PangoAttrList *attrs = NULL; str = g_value_get_string (value); if (str && !pango_parse_markup (str, -1, 0, &attrs, &text, NULL, &error)) { g_warning ("Failed to set cell text from markup due to error parsing markup: %s", error->message); g_error_free (error); return; } if (celltext->text) g_free (celltext->text); if (celltext->extra_attrs) pango_attr_list_unref (celltext->extra_attrs); celltext->text = text; celltext->extra_attrs = attrs; } break; case PROP_BACKGROUND: { GdkColor color; if (!g_value_get_string (value)) set_bg_color (celltext, NULL); /* reset to backgrounmd_set to FALSE */ else if (gdk_color_parse (g_value_get_string (value), &color)) set_bg_color (celltext, &color); else g_warning ("Don't know color `%s'", g_value_get_string (value)); g_object_notify (object, "background_gdk"); } break; case PROP_FOREGROUND: { GdkColor color; if (!g_value_get_string (value)) set_fg_color (celltext, NULL); /* reset to foreground_set to FALSE */ else if (gdk_color_parse (g_value_get_string (value), &color)) set_fg_color (celltext, &color); else g_warning ("Don't know color `%s'", g_value_get_string (value)); g_object_notify (object, "foreground_gdk"); } break; case PROP_BACKGROUND_GDK: /* This notifies the GObject itself. */ set_bg_color (celltext, g_value_get_boxed (value)); break; case PROP_FOREGROUND_GDK: /* This notifies the GObject itself. */ set_fg_color (celltext, g_value_get_boxed (value)); break; case PROP_FONT: { PangoFontDescription *font_desc = NULL; const gchar *name; name = g_value_get_string (value); if (name) font_desc = pango_font_description_from_string (name); set_font_description (celltext, font_desc); if (celltext->fixed_height_rows != -1) celltext->calc_fixed_height = TRUE; } break; case PROP_FONT_DESC: set_font_description (celltext, g_value_get_boxed (value)); if (celltext->fixed_height_rows != -1) celltext->calc_fixed_height = TRUE; break; case PROP_FAMILY: case PROP_STYLE: case PROP_VARIANT: case PROP_WEIGHT: case PROP_STRETCH: case PROP_SIZE: case PROP_SIZE_POINTS: { PangoFontMask old_set_mask = pango_font_description_get_set_fields (celltext->font); switch (param_id) { case PROP_FAMILY: pango_font_description_set_family (celltext->font, g_value_get_string (value)); break; case PROP_STYLE: pango_font_description_set_style (celltext->font, g_value_get_enum (value)); break; case PROP_VARIANT: pango_font_description_set_variant (celltext->font, g_value_get_enum (value)); break; case PROP_WEIGHT: pango_font_description_set_weight (celltext->font, g_value_get_int (value)); break; case PROP_STRETCH: pango_font_description_set_stretch (celltext->font, g_value_get_enum (value)); break; case PROP_SIZE: pango_font_description_set_size (celltext->font, g_value_get_int (value)); g_object_notify (object, "size_points"); break; case PROP_SIZE_POINTS: pango_font_description_set_size (celltext->font, g_value_get_double (value) * PANGO_SCALE); g_object_notify (object, "size"); break; } if (celltext->fixed_height_rows != -1) celltext->calc_fixed_height = TRUE; notify_set_changed (object, old_set_mask & pango_font_description_get_set_fields (celltext->font)); g_object_notify (object, "font_desc"); g_object_notify (object, "font"); break; } case PROP_SCALE: celltext->font_scale = g_value_get_double (value); celltext->scale_set = TRUE; if (celltext->fixed_height_rows != -1) celltext->calc_fixed_height = TRUE; g_object_notify (object, "scale_set"); break; case PROP_EDITABLE: celltext->editable = g_value_get_boolean (value); celltext->editable_set = TRUE; if (celltext->editable) GTK_CELL_RENDERER (celltext)->mode = GTK_CELL_RENDERER_MODE_EDITABLE; else GTK_CELL_RENDERER (celltext)->mode = GTK_CELL_RENDERER_MODE_INERT; g_object_notify (object, "editable_set"); break; case PROP_STRIKETHROUGH: celltext->strikethrough = g_value_get_boolean (value); celltext->strikethrough_set = TRUE; g_object_notify (object, "strikethrough_set"); break; case PROP_UNDERLINE: celltext->underline_style = g_value_get_enum (value); celltext->underline_set = TRUE; g_object_notify (object, "underline_set"); break; case PROP_RISE: celltext->rise = g_value_get_int (value); celltext->rise_set = TRUE; g_object_notify (object, "rise_set"); if (celltext->fixed_height_rows != -1) celltext->calc_fixed_height = TRUE; break; case PROP_BACKGROUND_SET: celltext->background_set = g_value_get_boolean (value); break; case PROP_FOREGROUND_SET: celltext->foreground_set = g_value_get_boolean (value); break; case PROP_FAMILY_SET: case PROP_STYLE_SET: case PROP_VARIANT_SET: case PROP_WEIGHT_SET: case PROP_STRETCH_SET: case PROP_SIZE_SET: if (!g_value_get_boolean (value)) { pango_font_description_unset_fields (celltext->font, get_property_font_set_mask (param_id)); } else { PangoFontMask changed_mask; changed_mask = set_font_desc_fields (celltext->font, get_property_font_set_mask (param_id)); notify_fields_changed (G_OBJECT (celltext), changed_mask); } break; case PROP_SCALE_SET: celltext->scale_set = g_value_get_boolean (value); break; case PROP_EDITABLE_SET: celltext->editable_set = g_value_get_boolean (value); break; case PROP_STRIKETHROUGH_SET: celltext->strikethrough_set = g_value_get_boolean (value); break; case PROP_UNDERLINE_SET: celltext->underline_set = g_value_get_boolean (value); break; case PROP_RISE_SET: celltext->rise_set = g_value_get_boolean (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } /** * gtk_cell_renderer_text_new: * * Creates a new #GtkCellRendererText. Adjust how text is drawn using * object properties. Object properties can be * set globally (with g_object_set()). Also, with #GtkTreeViewColumn, * you can bind a property to a value in a #GtkTreeModel. For example, * you can bind the "text" property on the cell renderer to a string * value in the model, thus rendering a different string in each row * of the #GtkTreeView * * Return value: the new cell renderer **/ GtkCellRenderer * gtk_cell_renderer_text_new (void) { return g_object_new (GTK_TYPE_CELL_RENDERER_TEXT, NULL); } static void add_attr (PangoAttrList *attr_list, PangoAttribute *attr) { attr->start_index = 0; attr->end_index = G_MAXINT; pango_attr_list_insert (attr_list, attr); } static PangoLayout* get_layout (GtkCellRendererText *celltext, GtkWidget *widget, gboolean will_render, GtkCellRendererState flags) { PangoAttrList *attr_list; PangoLayout *layout; PangoUnderline uline; layout = gtk_widget_create_pango_layout (widget, celltext->text); if (celltext->extra_attrs) attr_list = pango_attr_list_copy (celltext->extra_attrs); else attr_list = pango_attr_list_new (); if (will_render) { /* Add options that affect appearance but not size */ /* note that background doesn't go here, since it affects * background_area not the PangoLayout area */ if (celltext->foreground_set) { PangoColor color; color = celltext->foreground; add_attr (attr_list, pango_attr_foreground_new (color.red, color.green, color.blue)); } if (celltext->strikethrough_set) add_attr (attr_list, pango_attr_strikethrough_new (celltext->strikethrough)); } add_attr (attr_list, pango_attr_font_desc_new (celltext->font)); if (celltext->scale_set && celltext->font_scale != 1.0) add_attr (attr_list, pango_attr_scale_new (celltext->font_scale)); if (celltext->underline_set) uline = celltext->underline_style; else uline = PANGO_UNDERLINE_NONE; if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT) { switch (uline) { case PANGO_UNDERLINE_NONE: uline = PANGO_UNDERLINE_SINGLE; break; case PANGO_UNDERLINE_SINGLE: uline = PANGO_UNDERLINE_DOUBLE; break; default: break; } } if (uline != PANGO_UNDERLINE_NONE) add_attr (attr_list, pango_attr_underline_new (celltext->underline_style)); if (celltext->rise_set) add_attr (attr_list, pango_attr_rise_new (celltext->rise)); pango_layout_set_attributes (layout, attr_list); pango_layout_set_width (layout, -1); pango_attr_list_unref (attr_list); return layout; } static void gtk_cell_renderer_text_get_size (GtkCellRenderer *cell, GtkWidget *widget, GdkRectangle *cell_area, gint *x_offset, gint *y_offset, gint *width, gint *height) { GtkCellRendererText *celltext = (GtkCellRendererText *) cell; PangoRectangle rect; PangoLayout *layout; if (celltext->calc_fixed_height) { PangoContext *context; PangoFontMetrics *metrics; PangoFontDescription *font_desc; gint row_height; font_desc = pango_font_description_copy (widget->style->font_desc); pango_font_description_merge (font_desc, celltext->font, TRUE); if (celltext->scale_set) pango_font_description_set_size (font_desc, celltext->font_scale * pango_font_description_get_size (font_desc)); context = gtk_widget_get_pango_context (widget); metrics = pango_context_get_metrics (context, font_desc, pango_context_get_language (context)); row_height = (pango_font_metrics_get_ascent (metrics) + pango_font_metrics_get_descent (metrics)); pango_font_metrics_unref (metrics); gtk_cell_renderer_set_fixed_size (cell, cell->width, 2*cell->ypad + celltext->fixed_height_rows * PANGO_PIXELS (row_height)); if (height) { *height = cell->height; height = NULL; } celltext->calc_fixed_height = FALSE; if (width == NULL) return; } layout = get_layout (celltext, widget, FALSE, 0); pango_layout_get_pixel_extents (layout, NULL, &rect); if (width) *width = GTK_CELL_RENDERER (celltext)->xpad * 2 + rect.width; if (height) *height = GTK_CELL_RENDERER (celltext)->ypad * 2 + rect.height; if (cell_area) { if (x_offset) { *x_offset = ((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ? (1.0 - cell->xalign) : cell->xalign) * (cell_area->width - rect.width - (2 * cell->xpad)); *x_offset = MAX (*x_offset, 0); } if (y_offset) { *y_offset = cell->yalign * (cell_area->height - rect.height - (2 * cell->ypad)); *y_offset = MAX (*y_offset, 0); } } g_object_unref (layout); } static void gtk_cell_renderer_text_render (GtkCellRenderer *cell, GdkDrawable *window, GtkWidget *widget, GdkRectangle *background_area, GdkRectangle *cell_area, GdkRectangle *expose_area, GtkCellRendererState flags) { GtkCellRendererText *celltext = (GtkCellRendererText *) cell; PangoLayout *layout; GtkStateType state; gint x_offset; gint y_offset; layout = get_layout (celltext, widget, TRUE, flags); gtk_cell_renderer_text_get_size (cell, widget, cell_area, &x_offset, &y_offset, NULL, NULL); if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED) { if (GTK_WIDGET_HAS_FOCUS (widget)) state = GTK_STATE_SELECTED; else state = GTK_STATE_ACTIVE; } else { if (GTK_WIDGET_STATE (widget) == GTK_STATE_INSENSITIVE) state = GTK_STATE_INSENSITIVE; else state = GTK_STATE_NORMAL; } if (celltext->background_set && state != GTK_STATE_SELECTED) { GdkColor color; GdkGC *gc; color.red = celltext->background.red; color.green = celltext->background.green; color.blue = celltext->background.blue; gc = gdk_gc_new (window); gdk_gc_set_rgb_fg_color (gc, &color); gdk_draw_rectangle (window, gc, TRUE, background_area->x, background_area->y, background_area->width, background_area->height); g_object_unref (gc); } gtk_paint_layout (widget->style, window, state, TRUE, cell_area, widget, "cellrenderertext", cell_area->x + x_offset + cell->xpad, cell_area->y + y_offset + cell->ypad, layout); g_object_unref (layout); } static void gtk_cell_renderer_text_editing_done (GtkCellEditable *entry, gpointer data) { const gchar *path; const gchar *new_text; GtkCellRendererInfo *info; info = g_object_get_data (G_OBJECT (data), GTK_CELL_RENDERER_INFO_KEY); if (info->focus_out_id > 0) { g_signal_handler_disconnect (entry, info->focus_out_id); info->focus_out_id = 0; } if (GTK_ENTRY (entry)->editing_canceled) return; path = g_object_get_data (G_OBJECT (entry), GTK_CELL_RENDERER_TEXT_PATH); new_text = gtk_entry_get_text (GTK_ENTRY (entry)); g_signal_emit (data, text_cell_renderer_signals[EDITED], 0, path, new_text); } static gboolean gtk_cell_renderer_text_focus_out_event (GtkWidget *entry, GdkEvent *event, gpointer data) { gtk_cell_renderer_text_editing_done (GTK_CELL_EDITABLE (entry), data); /* entry needs focus-out-event */ return FALSE; } static GtkCellEditable * gtk_cell_renderer_text_start_editing (GtkCellRenderer *cell, GdkEvent *event, GtkWidget *widget, const gchar *path, GdkRectangle *background_area, GdkRectangle *cell_area, GtkCellRendererState flags) { GtkCellRendererText *celltext; GtkWidget *entry; GtkCellRendererInfo *info; celltext = GTK_CELL_RENDERER_TEXT (cell); /* If the cell isn't editable we return NULL. */ if (celltext->editable == FALSE) return NULL; entry = g_object_new (GTK_TYPE_ENTRY, "has_frame", FALSE, NULL); if (celltext->text) gtk_entry_set_text (GTK_ENTRY (entry), celltext->text); g_object_set_data_full (G_OBJECT (entry), GTK_CELL_RENDERER_TEXT_PATH, g_strdup (path), g_free); gtk_editable_select_region (GTK_EDITABLE (entry), 0, -1); info = g_object_get_data (G_OBJECT (cell), GTK_CELL_RENDERER_INFO_KEY); gtk_widget_show (entry); g_signal_connect (entry, "editing_done", G_CALLBACK (gtk_cell_renderer_text_editing_done), celltext); info->focus_out_id = g_signal_connect (entry, "focus_out_event", G_CALLBACK (gtk_cell_renderer_text_focus_out_event), celltext); return GTK_CELL_EDITABLE (entry); } /** * gtk_cell_renderer_text_set_fixed_height_from_font: * @renderer: A #GtkCellRendererText * @number_of_rows: Number of rows of text each cell renderer is allocated, or -1 * * Sets the height of a renderer to explicitly be determined by the "font" and * "y_pad" property set on it. Further changes in these properties do not * affect the height, so they must be accompanied by a subsequent call to this * function. Using this function is unflexible, and should really only be used * if calculating the size of a cell is too slow (ie, a massive number of cells * displayed). If @number_of_rows is -1, then the fixed height is unset, and * the height is determined by the properties again. **/ void gtk_cell_renderer_text_set_fixed_height_from_font (GtkCellRendererText *renderer, gint number_of_rows) { g_return_if_fail (GTK_IS_CELL_RENDERER_TEXT (renderer)); g_return_if_fail (number_of_rows == -1 || number_of_rows > 0); if (number_of_rows == -1) { gtk_cell_renderer_set_fixed_size (GTK_CELL_RENDERER (renderer), GTK_CELL_RENDERER (renderer)->width, -1); } else { renderer->fixed_height_rows = number_of_rows; renderer->calc_fixed_height = TRUE; } }