forked from AuroraMiddleware/gtk
2035 lines
65 KiB
C
2035 lines
65 KiB
C
/* gtkcellrenderertext.c
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* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtkcellrenderertext.h"
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#include "gtkcssnumbervalueprivate.h"
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#include "gtkeditable.h"
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#include "gtkentry.h"
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#include "gtkentryprivate.h"
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#include "gtkintl.h"
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#include "gtkmarshalers.h"
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#include "gtkprivate.h"
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#include "gtksizerequest.h"
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#include "gtksnapshot.h"
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#include "gtkstylecontextprivate.h"
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#include "gtktreeprivate.h"
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#include <stdlib.h>
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/**
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* GtkCellRendererText:
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*
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* Renders text in a cell
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*
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* A `GtkCellRendererText` renders a given text in its cell, using the font, color and
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* style information provided by its properties. The text will be ellipsized if it is
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* too long and the `GtkCellRendererText:ellipsize` property allows it.
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*
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* If the `GtkCellRenderer:mode` is %GTK_CELL_RENDERER_MODE_EDITABLE,
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* the `GtkCellRendererText` allows to edit its text using an entry.
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*/
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static void gtk_cell_renderer_text_finalize (GObject *object);
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static void gtk_cell_renderer_text_get_property (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_cell_renderer_text_set_property (GObject *object,
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guint param_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_cell_renderer_text_snapshot (GtkCellRenderer *cell,
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GtkSnapshot *snapshot,
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GtkWidget *widget,
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const GdkRectangle *background_area,
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const GdkRectangle *cell_area,
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GtkCellRendererState flags);
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static GtkCellEditable *gtk_cell_renderer_text_start_editing (GtkCellRenderer *cell,
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GdkEvent *event,
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GtkWidget *widget,
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const char *path,
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const GdkRectangle *background_area,
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const GdkRectangle *cell_area,
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GtkCellRendererState flags);
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static void gtk_cell_renderer_text_get_preferred_width (GtkCellRenderer *cell,
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GtkWidget *widget,
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int *minimal_size,
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int *natural_size);
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static void gtk_cell_renderer_text_get_preferred_height (GtkCellRenderer *cell,
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GtkWidget *widget,
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int *minimal_size,
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int *natural_size);
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static void gtk_cell_renderer_text_get_preferred_height_for_width (GtkCellRenderer *cell,
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GtkWidget *widget,
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int width,
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int *minimum_height,
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int *natural_height);
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static void gtk_cell_renderer_text_get_aligned_area (GtkCellRenderer *cell,
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GtkWidget *widget,
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GtkCellRendererState flags,
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const GdkRectangle *cell_area,
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GdkRectangle *aligned_area);
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enum {
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EDITED,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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PROP_TEXT,
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PROP_MARKUP,
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PROP_ATTRIBUTES,
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PROP_SINGLE_PARAGRAPH_MODE,
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PROP_WIDTH_CHARS,
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PROP_MAX_WIDTH_CHARS,
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PROP_WRAP_WIDTH,
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PROP_ALIGN,
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PROP_PLACEHOLDER_TEXT,
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/* Style args */
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PROP_BACKGROUND,
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PROP_FOREGROUND,
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PROP_BACKGROUND_RGBA,
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PROP_FOREGROUND_RGBA,
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PROP_FONT,
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PROP_FONT_DESC,
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PROP_FAMILY,
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PROP_STYLE,
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PROP_VARIANT,
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PROP_WEIGHT,
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PROP_STRETCH,
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PROP_SIZE,
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PROP_SIZE_POINTS,
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PROP_SCALE,
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PROP_EDITABLE,
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PROP_STRIKETHROUGH,
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PROP_UNDERLINE,
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PROP_RISE,
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PROP_LANGUAGE,
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PROP_ELLIPSIZE,
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PROP_WRAP_MODE,
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/* Whether-a-style-arg-is-set args */
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PROP_BACKGROUND_SET,
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PROP_FOREGROUND_SET,
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PROP_FAMILY_SET,
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PROP_STYLE_SET,
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PROP_VARIANT_SET,
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PROP_WEIGHT_SET,
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PROP_STRETCH_SET,
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PROP_SIZE_SET,
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PROP_SCALE_SET,
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PROP_EDITABLE_SET,
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PROP_STRIKETHROUGH_SET,
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PROP_UNDERLINE_SET,
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PROP_RISE_SET,
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PROP_LANGUAGE_SET,
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PROP_ELLIPSIZE_SET,
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PROP_ALIGN_SET,
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LAST_PROP
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};
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static guint text_cell_renderer_signals [LAST_SIGNAL];
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static GParamSpec *text_cell_renderer_props [LAST_PROP];
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#define GTK_CELL_RENDERER_TEXT_PATH "gtk-cell-renderer-text-path"
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typedef struct _GtkCellRendererTextPrivate GtkCellRendererTextPrivate;
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struct _GtkCellRendererTextPrivate
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{
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GtkWidget *entry;
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PangoAttrList *extra_attrs;
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GdkRGBA foreground;
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GdkRGBA background;
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PangoAlignment align;
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PangoEllipsizeMode ellipsize;
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PangoFontDescription *font;
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PangoLanguage *language;
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PangoUnderline underline_style;
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PangoWrapMode wrap_mode;
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char *text;
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char *placeholder_text;
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double font_scale;
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int rise;
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int fixed_height_rows;
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int width_chars;
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int max_width_chars;
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int wrap_width;
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guint in_entry_menu : 1;
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guint strikethrough : 1;
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guint editable : 1;
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guint scale_set : 1;
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guint foreground_set : 1;
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guint background_set : 1;
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guint underline_set : 1;
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guint rise_set : 1;
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guint strikethrough_set : 1;
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guint editable_set : 1;
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guint calc_fixed_height : 1;
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guint single_paragraph : 1;
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guint language_set : 1;
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guint markup_set : 1;
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guint ellipsize_set : 1;
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guint align_set : 1;
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gulong focus_out_id;
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gulong entry_menu_popdown_timeout;
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};
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G_DEFINE_TYPE_WITH_PRIVATE (GtkCellRendererText, gtk_cell_renderer_text, GTK_TYPE_CELL_RENDERER)
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static void
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gtk_cell_renderer_text_init (GtkCellRendererText *celltext)
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{
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GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
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GtkCellRenderer *cell = GTK_CELL_RENDERER (celltext);
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gtk_cell_renderer_set_alignment (cell, 0.0, 0.5);
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gtk_cell_renderer_set_padding (cell, 2, 2);
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priv->font_scale = 1.0;
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priv->fixed_height_rows = -1;
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priv->font = pango_font_description_new ();
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priv->width_chars = -1;
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priv->max_width_chars = -1;
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priv->wrap_width = -1;
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priv->wrap_mode = PANGO_WRAP_CHAR;
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priv->align = PANGO_ALIGN_LEFT;
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priv->align_set = FALSE;
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}
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static void
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gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class);
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object_class->finalize = gtk_cell_renderer_text_finalize;
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object_class->get_property = gtk_cell_renderer_text_get_property;
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object_class->set_property = gtk_cell_renderer_text_set_property;
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cell_class->snapshot = gtk_cell_renderer_text_snapshot;
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cell_class->start_editing = gtk_cell_renderer_text_start_editing;
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cell_class->get_preferred_width = gtk_cell_renderer_text_get_preferred_width;
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cell_class->get_preferred_height = gtk_cell_renderer_text_get_preferred_height;
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cell_class->get_preferred_height_for_width = gtk_cell_renderer_text_get_preferred_height_for_width;
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cell_class->get_aligned_area = gtk_cell_renderer_text_get_aligned_area;
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text_cell_renderer_props[PROP_TEXT] =
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g_param_spec_string ("text",
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P_("Text"),
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P_("Text to render"),
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NULL,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_MARKUP] =
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g_param_spec_string ("markup",
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P_("Markup"),
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P_("Marked up text to render"),
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NULL,
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GTK_PARAM_WRITABLE);
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text_cell_renderer_props[PROP_ATTRIBUTES] =
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g_param_spec_boxed ("attributes",
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P_("Attributes"),
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P_("A list of style attributes to apply to the text of the renderer"),
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PANGO_TYPE_ATTR_LIST,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_SINGLE_PARAGRAPH_MODE] =
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g_param_spec_boolean ("single-paragraph-mode",
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P_("Single Paragraph Mode"),
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P_("Whether to keep all text in a single paragraph"),
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FALSE,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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text_cell_renderer_props[PROP_BACKGROUND] =
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g_param_spec_string ("background",
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P_("Background color name"),
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P_("Background color as a string"),
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NULL,
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GTK_PARAM_WRITABLE);
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/**
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* GtkCellRendererText:background-rgba:
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*
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* Background color as a `GdkRGBA`
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*/
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text_cell_renderer_props[PROP_BACKGROUND_RGBA] =
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g_param_spec_boxed ("background-rgba",
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P_("Background color as RGBA"),
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P_("Background color as a GdkRGBA"),
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GDK_TYPE_RGBA,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_FOREGROUND] =
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g_param_spec_string ("foreground",
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P_("Foreground color name"),
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P_("Foreground color as a string"),
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NULL,
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GTK_PARAM_WRITABLE);
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/**
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* GtkCellRendererText:foreground-rgba:
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*
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* Foreground color as a `GdkRGBA`
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*/
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text_cell_renderer_props[PROP_FOREGROUND_RGBA] =
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g_param_spec_boxed ("foreground-rgba",
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P_("Foreground color as RGBA"),
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P_("Foreground color as a GdkRGBA"),
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GDK_TYPE_RGBA,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_EDITABLE] =
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g_param_spec_boolean ("editable",
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P_("Editable"),
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P_("Whether the text can be modified by the user"),
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FALSE,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_FONT] =
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g_param_spec_string ("font",
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P_("Font"),
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P_("Font description as a string, e.g. “Sans Italic 12”"),
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NULL,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_FONT_DESC] =
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g_param_spec_boxed ("font-desc",
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P_("Font"),
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P_("Font description as a PangoFontDescription struct"),
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PANGO_TYPE_FONT_DESCRIPTION,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_FAMILY] =
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g_param_spec_string ("family",
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P_("Font family"),
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P_("Name of the font family, e.g. Sans, Helvetica, Times, Monospace"),
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NULL,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_STYLE] =
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g_param_spec_enum ("style",
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P_("Font style"),
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P_("Font style"),
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PANGO_TYPE_STYLE,
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PANGO_STYLE_NORMAL,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_VARIANT] =
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g_param_spec_enum ("variant",
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P_("Font variant"),
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P_("Font variant"),
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PANGO_TYPE_VARIANT,
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PANGO_VARIANT_NORMAL,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_WEIGHT] =
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g_param_spec_int ("weight",
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P_("Font weight"),
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P_("Font weight"),
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0, G_MAXINT,
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PANGO_WEIGHT_NORMAL,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_STRETCH] =
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g_param_spec_enum ("stretch",
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P_("Font stretch"),
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P_("Font stretch"),
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PANGO_TYPE_STRETCH,
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PANGO_STRETCH_NORMAL,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_SIZE] =
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g_param_spec_int ("size",
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P_("Font size"),
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P_("Font size"),
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0, G_MAXINT,
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0,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_SIZE_POINTS] =
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g_param_spec_double ("size-points",
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P_("Font points"),
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P_("Font size in points"),
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0.0, G_MAXDOUBLE,
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0.0,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_SCALE] =
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g_param_spec_double ("scale",
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P_("Font scale"),
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P_("Font scaling factor"),
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0.0, G_MAXDOUBLE,
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1.0,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_RISE] =
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g_param_spec_int ("rise",
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P_("Rise"),
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P_("Offset of text above the baseline (below the baseline if rise is negative)"),
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-G_MAXINT, G_MAXINT,
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0,
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GTK_PARAM_READWRITE);
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text_cell_renderer_props[PROP_STRIKETHROUGH] =
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g_param_spec_boolean ("strikethrough",
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P_("Strikethrough"),
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P_("Whether to strike through the text"),
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FALSE,
|
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GTK_PARAM_READWRITE);
|
||
|
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text_cell_renderer_props[PROP_UNDERLINE] =
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g_param_spec_enum ("underline",
|
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P_("Underline"),
|
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P_("Style of underline for this text"),
|
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PANGO_TYPE_UNDERLINE,
|
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PANGO_UNDERLINE_NONE,
|
||
GTK_PARAM_READWRITE);
|
||
|
||
text_cell_renderer_props[PROP_LANGUAGE] =
|
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g_param_spec_string ("language",
|
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P_("Language"),
|
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P_("The language this text is in, as an ISO code. "
|
||
"Pango can use this as a hint when rendering the text. "
|
||
"If you don’t understand this parameter, you probably don’t need it"),
|
||
NULL,
|
||
GTK_PARAM_READWRITE);
|
||
|
||
/**
|
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* GtkCellRendererText:ellipsize:
|
||
*
|
||
* Specifies the preferred place to ellipsize the string, if the cell renderer
|
||
* does not have enough room to display the entire string. Setting it to
|
||
* %PANGO_ELLIPSIZE_NONE turns off ellipsizing. See the wrap-width property
|
||
* for another way of making the text fit into a given width.
|
||
*/
|
||
text_cell_renderer_props[PROP_ELLIPSIZE] =
|
||
g_param_spec_enum ("ellipsize",
|
||
P_("Ellipsize"),
|
||
P_("The preferred place to ellipsize the string, "
|
||
"if the cell renderer does not have enough room "
|
||
"to display the entire string"),
|
||
PANGO_TYPE_ELLIPSIZE_MODE,
|
||
PANGO_ELLIPSIZE_NONE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
/**
|
||
* GtkCellRendererText:width-chars:
|
||
*
|
||
* The desired width of the cell, in characters. If this property is set to
|
||
* -1, the width will be calculated automatically, otherwise the cell will
|
||
* request either 3 characters or the property value, whichever is greater.
|
||
**/
|
||
text_cell_renderer_props[PROP_WIDTH_CHARS] =
|
||
g_param_spec_int ("width-chars",
|
||
P_("Width In Characters"),
|
||
P_("The desired width of the label, in characters"),
|
||
-1, G_MAXINT,
|
||
-1,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
/**
|
||
* GtkCellRendererText:max-width-chars:
|
||
*
|
||
* The desired maximum width of the cell, in characters. If this property
|
||
* is set to -1, the width will be calculated automatically.
|
||
*
|
||
* For cell renderers that ellipsize or wrap text; this property
|
||
* controls the maximum reported width of the cell. The
|
||
* cell should not receive any greater allocation unless it is
|
||
* set to expand in its `GtkCellLayout` and all of the cell's siblings
|
||
* have received their natural width.
|
||
**/
|
||
text_cell_renderer_props[PROP_MAX_WIDTH_CHARS] =
|
||
g_param_spec_int ("max-width-chars",
|
||
P_("Maximum Width In Characters"),
|
||
P_("The maximum width of the cell, in characters"),
|
||
-1, G_MAXINT,
|
||
-1,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
/**
|
||
* GtkCellRendererText:wrap-mode:
|
||
*
|
||
* Specifies how to break the string into multiple lines, if the cell
|
||
* renderer does not have enough room to display the entire string.
|
||
* This property has no effect unless the wrap-width property is set.
|
||
*/
|
||
text_cell_renderer_props[PROP_WRAP_MODE] =
|
||
g_param_spec_enum ("wrap-mode",
|
||
P_("Wrap mode"),
|
||
P_("How to break the string into multiple lines, "
|
||
"if the cell renderer does not have enough room "
|
||
"to display the entire string"),
|
||
PANGO_TYPE_WRAP_MODE,
|
||
PANGO_WRAP_CHAR,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
/**
|
||
* GtkCellRendererText:wrap-width:
|
||
*
|
||
* Specifies the minimum width at which the text is wrapped. The wrap-mode property can
|
||
* be used to influence at what character positions the line breaks can be placed.
|
||
* Setting wrap-width to -1 turns wrapping off.
|
||
*/
|
||
text_cell_renderer_props[PROP_WRAP_WIDTH] =
|
||
g_param_spec_int ("wrap-width",
|
||
P_("Wrap width"),
|
||
P_("The width at which the text is wrapped"),
|
||
-1, G_MAXINT,
|
||
-1,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
/**
|
||
* GtkCellRendererText:alignment:
|
||
*
|
||
* Specifies how to align the lines of text with respect to each other.
|
||
*
|
||
* Note that this property describes how to align the lines of text in
|
||
* case there are several of them. The "xalign" property of `GtkCellRenderer`,
|
||
* on the other hand, sets the horizontal alignment of the whole text.
|
||
*/
|
||
text_cell_renderer_props[PROP_ALIGN] =
|
||
g_param_spec_enum ("alignment",
|
||
P_("Alignment"),
|
||
P_("How to align the lines"),
|
||
PANGO_TYPE_ALIGNMENT,
|
||
PANGO_ALIGN_LEFT,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
/**
|
||
* GtkCellRendererText:placeholder-text:
|
||
*
|
||
* The text that will be displayed in the `GtkCellRenderer` if
|
||
* `GtkCellRendererText:editable` is %TRUE and the cell is empty.
|
||
*/
|
||
text_cell_renderer_props[PROP_PLACEHOLDER_TEXT] =
|
||
g_param_spec_string ("placeholder-text",
|
||
P_("Placeholder text"),
|
||
P_("Text rendered when an editable cell is empty"),
|
||
NULL,
|
||
GTK_PARAM_READWRITE);
|
||
|
||
/* Style props are set or not */
|
||
|
||
#define ADD_SET_PROP(propname, propval, nick, blurb) text_cell_renderer_props[propval] = g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE)
|
||
|
||
ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
|
||
P_("Background set"),
|
||
P_("Whether this tag affects the background color"));
|
||
|
||
ADD_SET_PROP ("foreground-set", PROP_FOREGROUND_SET,
|
||
P_("Foreground set"),
|
||
P_("Whether this tag affects the foreground color"));
|
||
|
||
ADD_SET_PROP ("editable-set", PROP_EDITABLE_SET,
|
||
P_("Editability set"),
|
||
P_("Whether this tag affects text editability"));
|
||
|
||
ADD_SET_PROP ("family-set", PROP_FAMILY_SET,
|
||
P_("Font family set"),
|
||
P_("Whether this tag affects the font family"));
|
||
|
||
ADD_SET_PROP ("style-set", PROP_STYLE_SET,
|
||
P_("Font style set"),
|
||
P_("Whether this tag affects the font style"));
|
||
|
||
ADD_SET_PROP ("variant-set", PROP_VARIANT_SET,
|
||
P_("Font variant set"),
|
||
P_("Whether this tag affects the font variant"));
|
||
|
||
ADD_SET_PROP ("weight-set", PROP_WEIGHT_SET,
|
||
P_("Font weight set"),
|
||
P_("Whether this tag affects the font weight"));
|
||
|
||
ADD_SET_PROP ("stretch-set", PROP_STRETCH_SET,
|
||
P_("Font stretch set"),
|
||
P_("Whether this tag affects the font stretch"));
|
||
|
||
ADD_SET_PROP ("size-set", PROP_SIZE_SET,
|
||
P_("Font size set"),
|
||
P_("Whether this tag affects the font size"));
|
||
|
||
ADD_SET_PROP ("scale-set", PROP_SCALE_SET,
|
||
P_("Font scale set"),
|
||
P_("Whether this tag scales the font size by a factor"));
|
||
|
||
ADD_SET_PROP ("rise-set", PROP_RISE_SET,
|
||
P_("Rise set"),
|
||
P_("Whether this tag affects the rise"));
|
||
|
||
ADD_SET_PROP ("strikethrough-set", PROP_STRIKETHROUGH_SET,
|
||
P_("Strikethrough set"),
|
||
P_("Whether this tag affects strikethrough"));
|
||
|
||
ADD_SET_PROP ("underline-set", PROP_UNDERLINE_SET,
|
||
P_("Underline set"),
|
||
P_("Whether this tag affects underlining"));
|
||
|
||
ADD_SET_PROP ("language-set", PROP_LANGUAGE_SET,
|
||
P_("Language set"),
|
||
P_("Whether this tag affects the language the text is rendered as"));
|
||
|
||
ADD_SET_PROP ("ellipsize-set", PROP_ELLIPSIZE_SET,
|
||
P_("Ellipsize set"),
|
||
P_("Whether this tag affects the ellipsize mode"));
|
||
|
||
ADD_SET_PROP ("align-set", PROP_ALIGN_SET,
|
||
P_("Align set"),
|
||
P_("Whether this tag affects the alignment mode"));
|
||
|
||
g_object_class_install_properties (object_class, LAST_PROP, text_cell_renderer_props);
|
||
|
||
/**
|
||
* GtkCellRendererText::edited:
|
||
* @renderer: the object which received the signal
|
||
* @path: the path identifying the edited cell
|
||
* @new_text: the new text
|
||
*
|
||
* This signal is emitted after @renderer has been edited.
|
||
*
|
||
* It is the responsibility of the application to update the model
|
||
* and store @new_text at the position indicated by @path.
|
||
*/
|
||
text_cell_renderer_signals [EDITED] =
|
||
g_signal_new (I_("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);
|
||
g_signal_set_va_marshaller (text_cell_renderer_signals [EDITED],
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
_gtk_marshal_VOID__STRING_STRINGv);
|
||
}
|
||
|
||
static void
|
||
gtk_cell_renderer_text_finalize (GObject *object)
|
||
{
|
||
GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
|
||
pango_font_description_free (priv->font);
|
||
|
||
g_free (priv->text);
|
||
g_free (priv->placeholder_text);
|
||
|
||
if (priv->extra_attrs)
|
||
pango_attr_list_unref (priv->extra_attrs);
|
||
|
||
if (priv->language)
|
||
g_object_unref (priv->language);
|
||
|
||
g_clear_object (&priv->entry);
|
||
|
||
G_OBJECT_CLASS (gtk_cell_renderer_text_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;
|
||
default:
|
||
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);
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
|
||
switch (param_id)
|
||
{
|
||
case PROP_TEXT:
|
||
g_value_set_string (value, priv->text);
|
||
break;
|
||
|
||
case PROP_ATTRIBUTES:
|
||
g_value_set_boxed (value, priv->extra_attrs);
|
||
break;
|
||
|
||
case PROP_SINGLE_PARAGRAPH_MODE:
|
||
g_value_set_boolean (value, priv->single_paragraph);
|
||
break;
|
||
|
||
case PROP_BACKGROUND_RGBA:
|
||
g_value_set_boxed (value, &priv->background);
|
||
break;
|
||
|
||
case PROP_FOREGROUND_RGBA:
|
||
g_value_set_boxed (value, &priv->foreground);
|
||
break;
|
||
|
||
case PROP_FONT:
|
||
g_value_take_string (value, pango_font_description_to_string (priv->font));
|
||
break;
|
||
|
||
case PROP_FONT_DESC:
|
||
g_value_set_boxed (value, priv->font);
|
||
break;
|
||
|
||
case PROP_FAMILY:
|
||
g_value_set_string (value, pango_font_description_get_family (priv->font));
|
||
break;
|
||
|
||
case PROP_STYLE:
|
||
g_value_set_enum (value, pango_font_description_get_style (priv->font));
|
||
break;
|
||
|
||
case PROP_VARIANT:
|
||
g_value_set_enum (value, pango_font_description_get_variant (priv->font));
|
||
break;
|
||
|
||
case PROP_WEIGHT:
|
||
g_value_set_int (value, pango_font_description_get_weight (priv->font));
|
||
break;
|
||
|
||
case PROP_STRETCH:
|
||
g_value_set_enum (value, pango_font_description_get_stretch (priv->font));
|
||
break;
|
||
|
||
case PROP_SIZE:
|
||
g_value_set_int (value, pango_font_description_get_size (priv->font));
|
||
break;
|
||
|
||
case PROP_SIZE_POINTS:
|
||
g_value_set_double (value, ((double)pango_font_description_get_size (priv->font)) / (double)PANGO_SCALE);
|
||
break;
|
||
|
||
case PROP_SCALE:
|
||
g_value_set_double (value, priv->font_scale);
|
||
break;
|
||
|
||
case PROP_EDITABLE:
|
||
g_value_set_boolean (value, priv->editable);
|
||
break;
|
||
|
||
case PROP_STRIKETHROUGH:
|
||
g_value_set_boolean (value, priv->strikethrough);
|
||
break;
|
||
|
||
case PROP_UNDERLINE:
|
||
g_value_set_enum (value, priv->underline_style);
|
||
break;
|
||
|
||
case PROP_RISE:
|
||
g_value_set_int (value, priv->rise);
|
||
break;
|
||
|
||
case PROP_LANGUAGE:
|
||
g_value_set_static_string (value, pango_language_to_string (priv->language));
|
||
break;
|
||
|
||
case PROP_ELLIPSIZE:
|
||
g_value_set_enum (value, priv->ellipsize);
|
||
break;
|
||
|
||
case PROP_WRAP_MODE:
|
||
g_value_set_enum (value, priv->wrap_mode);
|
||
break;
|
||
|
||
case PROP_WRAP_WIDTH:
|
||
g_value_set_int (value, priv->wrap_width);
|
||
break;
|
||
|
||
case PROP_ALIGN:
|
||
g_value_set_enum (value, priv->align);
|
||
break;
|
||
|
||
case PROP_BACKGROUND_SET:
|
||
g_value_set_boolean (value, priv->background_set);
|
||
break;
|
||
|
||
case PROP_FOREGROUND_SET:
|
||
g_value_set_boolean (value, priv->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 (priv->font) & mask) != 0);
|
||
|
||
break;
|
||
}
|
||
|
||
case PROP_SCALE_SET:
|
||
g_value_set_boolean (value, priv->scale_set);
|
||
break;
|
||
|
||
case PROP_EDITABLE_SET:
|
||
g_value_set_boolean (value, priv->editable_set);
|
||
break;
|
||
|
||
case PROP_STRIKETHROUGH_SET:
|
||
g_value_set_boolean (value, priv->strikethrough_set);
|
||
break;
|
||
|
||
case PROP_UNDERLINE_SET:
|
||
g_value_set_boolean (value, priv->underline_set);
|
||
break;
|
||
|
||
case PROP_RISE_SET:
|
||
g_value_set_boolean (value, priv->rise_set);
|
||
break;
|
||
|
||
case PROP_LANGUAGE_SET:
|
||
g_value_set_boolean (value, priv->language_set);
|
||
break;
|
||
|
||
case PROP_ELLIPSIZE_SET:
|
||
g_value_set_boolean (value, priv->ellipsize_set);
|
||
break;
|
||
|
||
case PROP_ALIGN_SET:
|
||
g_value_set_boolean (value, priv->align_set);
|
||
break;
|
||
|
||
case PROP_WIDTH_CHARS:
|
||
g_value_set_int (value, priv->width_chars);
|
||
break;
|
||
|
||
case PROP_MAX_WIDTH_CHARS:
|
||
g_value_set_int (value, priv->max_width_chars);
|
||
break;
|
||
|
||
case PROP_PLACEHOLDER_TEXT:
|
||
g_value_set_string (value, priv->placeholder_text);
|
||
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,
|
||
GdkRGBA *rgba)
|
||
{
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
|
||
if (rgba)
|
||
{
|
||
if (!priv->background_set)
|
||
{
|
||
priv->background_set = TRUE;
|
||
g_object_notify_by_pspec (G_OBJECT (celltext), text_cell_renderer_props[PROP_BACKGROUND_SET]);
|
||
}
|
||
|
||
priv->background = *rgba;
|
||
}
|
||
else
|
||
{
|
||
if (priv->background_set)
|
||
{
|
||
priv->background_set = FALSE;
|
||
g_object_notify_by_pspec (G_OBJECT (celltext), text_cell_renderer_props[PROP_BACKGROUND_SET]);
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
set_fg_color (GtkCellRendererText *celltext,
|
||
GdkRGBA *rgba)
|
||
{
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
|
||
if (rgba)
|
||
{
|
||
if (!priv->foreground_set)
|
||
{
|
||
priv->foreground_set = TRUE;
|
||
g_object_notify_by_pspec (G_OBJECT (celltext), text_cell_renderer_props[PROP_FOREGROUND_SET]);
|
||
}
|
||
|
||
priv->foreground = *rgba;
|
||
}
|
||
else
|
||
{
|
||
if (priv->foreground_set)
|
||
{
|
||
priv->foreground_set = FALSE;
|
||
g_object_notify_by_pspec (G_OBJECT (celltext), text_cell_renderer_props[PROP_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)
|
||
{
|
||
int 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_by_pspec (object, text_cell_renderer_props[PROP_FAMILY_SET]);
|
||
if (changed_mask & PANGO_FONT_MASK_STYLE)
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_STYLE_SET]);
|
||
if (changed_mask & PANGO_FONT_MASK_VARIANT)
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_VARIANT_SET]);
|
||
if (changed_mask & PANGO_FONT_MASK_WEIGHT)
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_WEIGHT_SET]);
|
||
if (changed_mask & PANGO_FONT_MASK_STRETCH)
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_STRETCH_SET]);
|
||
if (changed_mask & PANGO_FONT_MASK_SIZE)
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_SIZE_SET]);
|
||
}
|
||
|
||
static void
|
||
notify_fields_changed (GObject *object,
|
||
PangoFontMask changed_mask)
|
||
{
|
||
if (changed_mask & PANGO_FONT_MASK_FAMILY)
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_FAMILY]);
|
||
if (changed_mask & PANGO_FONT_MASK_STYLE)
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_STYLE]);
|
||
if (changed_mask & PANGO_FONT_MASK_VARIANT)
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_VARIANT]);
|
||
if (changed_mask & PANGO_FONT_MASK_WEIGHT)
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_WEIGHT]);
|
||
if (changed_mask & PANGO_FONT_MASK_STRETCH)
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_STRETCH]);
|
||
if (changed_mask & PANGO_FONT_MASK_SIZE)
|
||
{
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_SIZE]);
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_SIZE_POINTS]);
|
||
}
|
||
}
|
||
|
||
static void
|
||
set_font_description (GtkCellRendererText *celltext,
|
||
PangoFontDescription *font_desc)
|
||
{
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
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 (priv->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 (priv->font);
|
||
priv->font = new_font_desc;
|
||
|
||
g_object_freeze_notify (object);
|
||
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_FONT_DESC]);
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_FONT]);
|
||
|
||
notify_fields_changed (object, changed_mask);
|
||
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);
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
|
||
switch (param_id)
|
||
{
|
||
case PROP_TEXT:
|
||
g_free (priv->text);
|
||
|
||
if (priv->markup_set)
|
||
{
|
||
if (priv->extra_attrs)
|
||
pango_attr_list_unref (priv->extra_attrs);
|
||
priv->extra_attrs = NULL;
|
||
priv->markup_set = FALSE;
|
||
}
|
||
|
||
priv->text = g_value_dup_string (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
break;
|
||
|
||
case PROP_ATTRIBUTES:
|
||
if (priv->extra_attrs)
|
||
pango_attr_list_unref (priv->extra_attrs);
|
||
|
||
priv->extra_attrs = g_value_get_boxed (value);
|
||
if (priv->extra_attrs)
|
||
pango_attr_list_ref (priv->extra_attrs);
|
||
break;
|
||
case PROP_MARKUP:
|
||
{
|
||
const char *str;
|
||
char *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 text from markup due to error parsing markup: %s",
|
||
error->message);
|
||
g_error_free (error);
|
||
return;
|
||
}
|
||
|
||
g_free (priv->text);
|
||
|
||
if (priv->extra_attrs)
|
||
pango_attr_list_unref (priv->extra_attrs);
|
||
|
||
priv->text = text;
|
||
priv->extra_attrs = attrs;
|
||
priv->markup_set = TRUE;
|
||
}
|
||
break;
|
||
|
||
case PROP_SINGLE_PARAGRAPH_MODE:
|
||
if (priv->single_paragraph != g_value_get_boolean (value))
|
||
{
|
||
priv->single_paragraph = g_value_get_boolean (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
}
|
||
break;
|
||
|
||
case PROP_BACKGROUND:
|
||
{
|
||
GdkRGBA rgba;
|
||
|
||
if (!g_value_get_string (value))
|
||
set_bg_color (celltext, NULL); /* reset to background_set to FALSE */
|
||
else if (gdk_rgba_parse (&rgba, g_value_get_string (value)))
|
||
set_bg_color (celltext, &rgba);
|
||
else
|
||
g_warning ("Don't know color '%s'", g_value_get_string (value));
|
||
}
|
||
break;
|
||
|
||
case PROP_FOREGROUND:
|
||
{
|
||
GdkRGBA rgba;
|
||
|
||
if (!g_value_get_string (value))
|
||
set_fg_color (celltext, NULL); /* reset to foreground_set to FALSE */
|
||
else if (gdk_rgba_parse (&rgba, g_value_get_string (value)))
|
||
set_fg_color (celltext, &rgba);
|
||
else
|
||
g_warning ("Don't know color '%s'", g_value_get_string (value));
|
||
}
|
||
break;
|
||
|
||
case PROP_BACKGROUND_RGBA:
|
||
set_bg_color (celltext, g_value_get_boxed (value));
|
||
break;
|
||
|
||
case PROP_FOREGROUND_RGBA:
|
||
set_fg_color (celltext, g_value_get_boxed (value));
|
||
break;
|
||
|
||
case PROP_FONT:
|
||
{
|
||
PangoFontDescription *font_desc = NULL;
|
||
const char *name;
|
||
|
||
name = g_value_get_string (value);
|
||
|
||
if (name)
|
||
font_desc = pango_font_description_from_string (name);
|
||
|
||
set_font_description (celltext, font_desc);
|
||
|
||
pango_font_description_free (font_desc);
|
||
|
||
if (priv->fixed_height_rows != -1)
|
||
priv->calc_fixed_height = TRUE;
|
||
}
|
||
break;
|
||
|
||
case PROP_FONT_DESC:
|
||
set_font_description (celltext, g_value_get_boxed (value));
|
||
|
||
if (priv->fixed_height_rows != -1)
|
||
priv->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 (priv->font);
|
||
|
||
switch (param_id)
|
||
{
|
||
case PROP_FAMILY:
|
||
pango_font_description_set_family (priv->font,
|
||
g_value_get_string (value));
|
||
break;
|
||
case PROP_STYLE:
|
||
pango_font_description_set_style (priv->font,
|
||
g_value_get_enum (value));
|
||
break;
|
||
case PROP_VARIANT:
|
||
pango_font_description_set_variant (priv->font,
|
||
g_value_get_enum (value));
|
||
break;
|
||
case PROP_WEIGHT:
|
||
pango_font_description_set_weight (priv->font,
|
||
g_value_get_int (value));
|
||
break;
|
||
case PROP_STRETCH:
|
||
pango_font_description_set_stretch (priv->font,
|
||
g_value_get_enum (value));
|
||
break;
|
||
case PROP_SIZE:
|
||
pango_font_description_set_size (priv->font,
|
||
g_value_get_int (value));
|
||
g_object_notify_by_pspec (object, pspec);
|
||
break;
|
||
case PROP_SIZE_POINTS:
|
||
pango_font_description_set_size (priv->font,
|
||
g_value_get_double (value) * PANGO_SCALE);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
if (priv->fixed_height_rows != -1)
|
||
priv->calc_fixed_height = TRUE;
|
||
|
||
notify_set_changed (object, old_set_mask & pango_font_description_get_set_fields (priv->font));
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_FONT_DESC]);
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_FONT]);
|
||
|
||
break;
|
||
}
|
||
|
||
case PROP_SCALE:
|
||
priv->font_scale = g_value_get_double (value);
|
||
priv->scale_set = TRUE;
|
||
if (priv->fixed_height_rows != -1)
|
||
priv->calc_fixed_height = TRUE;
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_SCALE_SET]);
|
||
break;
|
||
|
||
case PROP_EDITABLE:
|
||
priv->editable = g_value_get_boolean (value);
|
||
priv->editable_set = TRUE;
|
||
if (priv->editable)
|
||
g_object_set (celltext, "mode", GTK_CELL_RENDERER_MODE_EDITABLE, NULL);
|
||
else
|
||
g_object_set (celltext, "mode", GTK_CELL_RENDERER_MODE_INERT, NULL);
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_EDITABLE_SET]);
|
||
break;
|
||
|
||
case PROP_STRIKETHROUGH:
|
||
priv->strikethrough = g_value_get_boolean (value);
|
||
priv->strikethrough_set = TRUE;
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_STRIKETHROUGH_SET]);
|
||
break;
|
||
|
||
case PROP_UNDERLINE:
|
||
priv->underline_style = g_value_get_enum (value);
|
||
priv->underline_set = TRUE;
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_UNDERLINE_SET]);
|
||
|
||
break;
|
||
|
||
case PROP_RISE:
|
||
priv->rise = g_value_get_int (value);
|
||
priv->rise_set = TRUE;
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_RISE_SET]);
|
||
if (priv->fixed_height_rows != -1)
|
||
priv->calc_fixed_height = TRUE;
|
||
break;
|
||
|
||
case PROP_LANGUAGE:
|
||
priv->language_set = TRUE;
|
||
if (priv->language)
|
||
g_object_unref (priv->language);
|
||
priv->language = pango_language_from_string (g_value_get_string (value));
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_LANGUAGE_SET]);
|
||
break;
|
||
|
||
case PROP_ELLIPSIZE:
|
||
priv->ellipsize = g_value_get_enum (value);
|
||
priv->ellipsize_set = TRUE;
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_ELLIPSIZE_SET]);
|
||
break;
|
||
|
||
case PROP_WRAP_MODE:
|
||
if (priv->wrap_mode != g_value_get_enum (value))
|
||
{
|
||
priv->wrap_mode = g_value_get_enum (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
}
|
||
break;
|
||
|
||
case PROP_WRAP_WIDTH:
|
||
if (priv->wrap_width != g_value_get_int (value))
|
||
{
|
||
priv->wrap_width = g_value_get_int (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
}
|
||
break;
|
||
|
||
case PROP_WIDTH_CHARS:
|
||
if (priv->width_chars != g_value_get_int (value))
|
||
{
|
||
priv->width_chars = g_value_get_int (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
}
|
||
break;
|
||
|
||
case PROP_MAX_WIDTH_CHARS:
|
||
if (priv->max_width_chars != g_value_get_int (value))
|
||
{
|
||
priv->max_width_chars = g_value_get_int (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
}
|
||
break;
|
||
|
||
case PROP_ALIGN:
|
||
if (priv->align != g_value_get_enum (value))
|
||
{
|
||
priv->align = g_value_get_enum (value);
|
||
g_object_notify_by_pspec (object, pspec);
|
||
}
|
||
priv->align_set = TRUE;
|
||
g_object_notify_by_pspec (object, text_cell_renderer_props[PROP_ALIGN_SET]);
|
||
break;
|
||
|
||
case PROP_BACKGROUND_SET:
|
||
priv->background_set = g_value_get_boolean (value);
|
||
break;
|
||
|
||
case PROP_FOREGROUND_SET:
|
||
priv->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 (priv->font,
|
||
get_property_font_set_mask (param_id));
|
||
}
|
||
else
|
||
{
|
||
PangoFontMask changed_mask;
|
||
|
||
changed_mask = set_font_desc_fields (priv->font,
|
||
get_property_font_set_mask (param_id));
|
||
notify_fields_changed (G_OBJECT (celltext), changed_mask);
|
||
}
|
||
break;
|
||
|
||
case PROP_SCALE_SET:
|
||
priv->scale_set = g_value_get_boolean (value);
|
||
break;
|
||
|
||
case PROP_EDITABLE_SET:
|
||
priv->editable_set = g_value_get_boolean (value);
|
||
break;
|
||
|
||
case PROP_STRIKETHROUGH_SET:
|
||
priv->strikethrough_set = g_value_get_boolean (value);
|
||
break;
|
||
|
||
case PROP_UNDERLINE_SET:
|
||
priv->underline_set = g_value_get_boolean (value);
|
||
break;
|
||
|
||
case PROP_RISE_SET:
|
||
priv->rise_set = g_value_get_boolean (value);
|
||
break;
|
||
|
||
case PROP_LANGUAGE_SET:
|
||
priv->language_set = g_value_get_boolean (value);
|
||
break;
|
||
|
||
case PROP_ELLIPSIZE_SET:
|
||
priv->ellipsize_set = g_value_get_boolean (value);
|
||
break;
|
||
|
||
case PROP_ALIGN_SET:
|
||
priv->align_set = g_value_get_boolean (value);
|
||
break;
|
||
|
||
case PROP_PLACEHOLDER_TEXT:
|
||
g_free (priv->placeholder_text);
|
||
priv->placeholder_text = g_value_dup_string (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`.
|
||
*
|
||
* Returns: the new cell renderer
|
||
**/
|
||
GtkCellRenderer *
|
||
gtk_cell_renderer_text_new (void)
|
||
{
|
||
return g_object_new (GTK_TYPE_CELL_RENDERER_TEXT, NULL);
|
||
}
|
||
|
||
static inline gboolean
|
||
show_placeholder_text (GtkCellRendererText *celltext)
|
||
{
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
|
||
return priv->editable && priv->placeholder_text &&
|
||
(!priv->text || !priv->text[0]);
|
||
}
|
||
|
||
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,
|
||
const GdkRectangle *cell_area,
|
||
GtkCellRendererState flags)
|
||
{
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
PangoAttrList *attr_list;
|
||
PangoLayout *layout;
|
||
PangoUnderline uline;
|
||
int xpad;
|
||
gboolean placeholder_layout = show_placeholder_text (celltext);
|
||
|
||
layout = gtk_widget_create_pango_layout (widget, placeholder_layout ?
|
||
priv->placeholder_text : priv->text);
|
||
|
||
gtk_cell_renderer_get_padding (GTK_CELL_RENDERER (celltext), &xpad, NULL);
|
||
|
||
if (priv->extra_attrs)
|
||
attr_list = pango_attr_list_copy (priv->extra_attrs);
|
||
else
|
||
attr_list = pango_attr_list_new ();
|
||
|
||
pango_layout_set_single_paragraph_mode (layout, priv->single_paragraph);
|
||
|
||
if (!placeholder_layout && cell_area)
|
||
{
|
||
/* 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 (priv->foreground_set
|
||
&& (flags & GTK_CELL_RENDERER_SELECTED) == 0)
|
||
{
|
||
PangoColor color;
|
||
guint16 alpha;
|
||
|
||
color.red = CLAMP (priv->foreground.red * 65535. + 0.5, 0, 65535);
|
||
color.green = CLAMP (priv->foreground.green * 65535. + 0.5, 0, 65535);
|
||
color.blue = CLAMP (priv->foreground.blue * 65535. + 0.5, 0, 65535);
|
||
alpha = CLAMP (priv->foreground.alpha * 65535. + 0.5, 0, 65535);
|
||
|
||
add_attr (attr_list,
|
||
pango_attr_foreground_new (color.red, color.green, color.blue));
|
||
|
||
add_attr (attr_list, pango_attr_foreground_alpha_new (alpha));
|
||
}
|
||
|
||
if (priv->strikethrough_set)
|
||
add_attr (attr_list, pango_attr_strikethrough_new (priv->strikethrough));
|
||
}
|
||
else if (placeholder_layout)
|
||
{
|
||
PangoColor color;
|
||
guint16 alpha;
|
||
GtkStyleContext *context;
|
||
GdkRGBA fg = { 0.5, 0.5, 0.5, 1.0 };
|
||
|
||
context = gtk_widget_get_style_context (widget);
|
||
gtk_style_context_lookup_color (context, "placeholder_text_color", &fg);
|
||
|
||
color.red = CLAMP (fg.red * 65535. + 0.5, 0, 65535);
|
||
color.green = CLAMP (fg.green * 65535. + 0.5, 0, 65535);
|
||
color.blue = CLAMP (fg.blue * 65535. + 0.5, 0, 65535);
|
||
alpha = CLAMP (fg.alpha * 65535. + 0.5, 0, 65535);
|
||
|
||
add_attr (attr_list,
|
||
pango_attr_foreground_new (color.red, color.green, color.blue));
|
||
|
||
add_attr (attr_list, pango_attr_foreground_alpha_new (alpha));
|
||
}
|
||
|
||
add_attr (attr_list, pango_attr_font_desc_new (priv->font));
|
||
|
||
if (priv->scale_set &&
|
||
priv->font_scale != 1.0)
|
||
add_attr (attr_list, pango_attr_scale_new (priv->font_scale));
|
||
|
||
if (priv->underline_set)
|
||
uline = priv->underline_style;
|
||
else
|
||
uline = PANGO_UNDERLINE_NONE;
|
||
|
||
if (priv->language_set)
|
||
add_attr (attr_list, pango_attr_language_new (priv->language));
|
||
|
||
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;
|
||
|
||
case PANGO_UNDERLINE_SINGLE_LINE:
|
||
uline = PANGO_UNDERLINE_DOUBLE_LINE;
|
||
break;
|
||
|
||
case PANGO_UNDERLINE_DOUBLE_LINE:
|
||
case PANGO_UNDERLINE_ERROR_LINE:
|
||
break;
|
||
|
||
case PANGO_UNDERLINE_DOUBLE:
|
||
case PANGO_UNDERLINE_LOW:
|
||
case PANGO_UNDERLINE_ERROR:
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (uline != PANGO_UNDERLINE_NONE)
|
||
add_attr (attr_list, pango_attr_underline_new (priv->underline_style));
|
||
|
||
if (priv->rise_set)
|
||
add_attr (attr_list, pango_attr_rise_new (priv->rise));
|
||
|
||
/* Now apply the attributes as they will effect the outcome
|
||
* of pango_layout_get_extents() */
|
||
pango_layout_set_attributes (layout, attr_list);
|
||
pango_attr_list_unref (attr_list);
|
||
|
||
if (priv->ellipsize_set)
|
||
pango_layout_set_ellipsize (layout, priv->ellipsize);
|
||
else
|
||
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
|
||
|
||
if (priv->wrap_width != -1)
|
||
{
|
||
PangoRectangle rect;
|
||
int width, text_width;
|
||
|
||
pango_layout_get_extents (layout, NULL, &rect);
|
||
text_width = rect.width;
|
||
|
||
if (cell_area)
|
||
width = (cell_area->width - xpad * 2) * PANGO_SCALE;
|
||
else
|
||
width = priv->wrap_width * PANGO_SCALE;
|
||
|
||
width = MIN (width, text_width);
|
||
|
||
pango_layout_set_width (layout, width);
|
||
pango_layout_set_wrap (layout, priv->wrap_mode);
|
||
}
|
||
else
|
||
{
|
||
pango_layout_set_width (layout, -1);
|
||
pango_layout_set_wrap (layout, PANGO_WRAP_CHAR);
|
||
}
|
||
|
||
if (priv->align_set)
|
||
pango_layout_set_alignment (layout, priv->align);
|
||
else
|
||
{
|
||
PangoAlignment align;
|
||
|
||
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
|
||
align = PANGO_ALIGN_RIGHT;
|
||
else
|
||
align = PANGO_ALIGN_LEFT;
|
||
|
||
pango_layout_set_alignment (layout, align);
|
||
}
|
||
|
||
return layout;
|
||
}
|
||
|
||
|
||
static void
|
||
get_size (GtkCellRenderer *cell,
|
||
GtkWidget *widget,
|
||
const GdkRectangle *cell_area,
|
||
PangoLayout *layout,
|
||
int *x_offset,
|
||
int *y_offset,
|
||
int *width,
|
||
int *height)
|
||
{
|
||
GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (cell);
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
PangoRectangle rect;
|
||
int xpad, ypad;
|
||
int cell_width, cell_height;
|
||
float xalign, yalign;
|
||
|
||
gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
|
||
|
||
if (priv->calc_fixed_height)
|
||
{
|
||
GtkStyleContext *style_context;
|
||
PangoContext *context;
|
||
PangoFontMetrics *metrics;
|
||
PangoFontDescription *font_desc;
|
||
int row_height;
|
||
|
||
style_context = gtk_widget_get_style_context (widget);
|
||
|
||
font_desc = gtk_css_style_get_pango_font (gtk_style_context_lookup_style (style_context));
|
||
pango_font_description_merge_static (font_desc, priv->font, TRUE);
|
||
|
||
if (priv->scale_set)
|
||
pango_font_description_set_size (font_desc,
|
||
priv->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);
|
||
|
||
pango_font_description_free (font_desc);
|
||
|
||
gtk_cell_renderer_get_fixed_size (cell, &cell_width, &cell_height);
|
||
|
||
gtk_cell_renderer_set_fixed_size (cell,
|
||
cell_width, 2 * ypad +
|
||
priv->fixed_height_rows * PANGO_PIXELS (row_height));
|
||
|
||
if (height)
|
||
{
|
||
*height = cell_height;
|
||
height = NULL;
|
||
}
|
||
priv->calc_fixed_height = FALSE;
|
||
if (width == NULL)
|
||
return;
|
||
}
|
||
|
||
pango_layout_get_pixel_extents (layout, NULL, &rect);
|
||
|
||
gtk_cell_renderer_get_alignment (cell, &xalign, &yalign);
|
||
|
||
rect.height = MIN (rect.height, cell_area->height - 2 * ypad);
|
||
rect.width = MIN (rect.width, cell_area->width - 2 * xpad);
|
||
|
||
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
|
||
*x_offset = (1.0 - xalign) * (cell_area->width - (rect.width + (2 * xpad)));
|
||
else
|
||
*x_offset = xalign * (cell_area->width - (rect.width + (2 * xpad)));
|
||
|
||
if ((priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE) || priv->wrap_width != -1)
|
||
*x_offset = MAX(*x_offset, 0);
|
||
|
||
*y_offset = yalign * (cell_area->height - (rect.height + (2 * ypad)));
|
||
*y_offset = MAX (*y_offset, 0);
|
||
|
||
if (height)
|
||
*height = ypad * 2 + rect.height;
|
||
|
||
if (width)
|
||
*width = xpad * 2 + rect.width;
|
||
}
|
||
|
||
static void
|
||
gtk_cell_renderer_text_snapshot (GtkCellRenderer *cell,
|
||
GtkSnapshot *snapshot,
|
||
GtkWidget *widget,
|
||
const GdkRectangle *background_area,
|
||
const GdkRectangle *cell_area,
|
||
GtkCellRendererState flags)
|
||
|
||
{
|
||
GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (cell);
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
GtkStyleContext *context;
|
||
PangoLayout *layout;
|
||
int x_offset = 0;
|
||
int y_offset = 0;
|
||
int xpad, ypad;
|
||
PangoRectangle rect;
|
||
|
||
layout = get_layout (celltext, widget, cell_area, flags);
|
||
get_size (cell, widget, cell_area, layout, &x_offset, &y_offset, NULL, NULL);
|
||
context = gtk_widget_get_style_context (widget);
|
||
|
||
if (priv->background_set && (flags & GTK_CELL_RENDERER_SELECTED) == 0)
|
||
{
|
||
gtk_snapshot_append_color (snapshot,
|
||
&priv->background,
|
||
&GRAPHENE_RECT_INIT(
|
||
background_area->x, background_area->y,
|
||
background_area->width, background_area->height
|
||
));
|
||
}
|
||
|
||
gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
|
||
|
||
if (priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE)
|
||
pango_layout_set_width (layout,
|
||
(cell_area->width - x_offset - 2 * xpad) * PANGO_SCALE);
|
||
else if (priv->wrap_width == -1)
|
||
pango_layout_set_width (layout, -1);
|
||
|
||
pango_layout_get_pixel_extents (layout, NULL, &rect);
|
||
x_offset = x_offset - rect.x;
|
||
|
||
gtk_snapshot_push_clip (snapshot,
|
||
&GRAPHENE_RECT_INIT(
|
||
cell_area->x, cell_area->y,
|
||
cell_area->width, cell_area->height
|
||
));
|
||
|
||
gtk_snapshot_render_layout (snapshot, context,
|
||
cell_area->x + x_offset + xpad,
|
||
cell_area->y + y_offset + ypad,
|
||
layout);
|
||
|
||
gtk_snapshot_pop (snapshot);
|
||
|
||
g_object_unref (layout);
|
||
}
|
||
|
||
static void
|
||
gtk_cell_renderer_text_editing_done (GtkCellEditable *entry,
|
||
gpointer data)
|
||
{
|
||
GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (data);
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
const char *path;
|
||
const char *new_text;
|
||
gboolean canceled;
|
||
|
||
g_clear_object (&priv->entry);
|
||
|
||
if (priv->focus_out_id > 0)
|
||
{
|
||
g_signal_handler_disconnect (entry, priv->focus_out_id);
|
||
priv->focus_out_id = 0;
|
||
}
|
||
|
||
if (priv->entry_menu_popdown_timeout)
|
||
{
|
||
g_source_remove (priv->entry_menu_popdown_timeout);
|
||
priv->entry_menu_popdown_timeout = 0;
|
||
}
|
||
|
||
g_object_get (entry,
|
||
"editing-canceled", &canceled,
|
||
NULL);
|
||
gtk_cell_renderer_stop_editing (GTK_CELL_RENDERER (data), canceled);
|
||
|
||
if (canceled)
|
||
return;
|
||
|
||
path = g_object_get_data (G_OBJECT (entry), GTK_CELL_RENDERER_TEXT_PATH);
|
||
new_text = gtk_editable_get_text (GTK_EDITABLE (entry));
|
||
g_signal_emit (data, text_cell_renderer_signals[EDITED], 0, path, new_text);
|
||
}
|
||
|
||
static void
|
||
gtk_cell_renderer_text_focus_changed (GtkWidget *entry,
|
||
GParamSpec *pspec,
|
||
gpointer data)
|
||
{
|
||
if (gtk_widget_has_focus (entry) ||
|
||
gtk_widget_has_focus (GTK_WIDGET (gtk_entry_get_text_widget (GTK_ENTRY (entry)))))
|
||
return;
|
||
|
||
g_object_set (entry,
|
||
"editing-canceled", TRUE,
|
||
NULL);
|
||
gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (entry));
|
||
gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (entry));
|
||
}
|
||
|
||
static GtkCellEditable *
|
||
gtk_cell_renderer_text_start_editing (GtkCellRenderer *cell,
|
||
GdkEvent *event,
|
||
GtkWidget *widget,
|
||
const char *path,
|
||
const GdkRectangle *background_area,
|
||
const GdkRectangle *cell_area,
|
||
GtkCellRendererState flags)
|
||
{
|
||
GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (cell);
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
float xalign, yalign;
|
||
|
||
/* If the cell isn't editable we return NULL. */
|
||
if (!priv->editable)
|
||
return NULL;
|
||
|
||
gtk_cell_renderer_get_alignment (cell, &xalign, &yalign);
|
||
|
||
priv->entry = gtk_entry_new ();
|
||
g_object_ref_sink (G_OBJECT (priv->entry));
|
||
|
||
gtk_entry_set_has_frame (GTK_ENTRY (priv->entry), FALSE);
|
||
gtk_entry_set_alignment (GTK_ENTRY (priv->entry), xalign);
|
||
gtk_editable_set_width_chars (GTK_EDITABLE (priv->entry), 5);
|
||
|
||
if (priv->text)
|
||
gtk_editable_set_text (GTK_EDITABLE (priv->entry), priv->text);
|
||
g_object_set_data_full (G_OBJECT (priv->entry), I_(GTK_CELL_RENDERER_TEXT_PATH), g_strdup (path), g_free);
|
||
|
||
gtk_editable_select_region (GTK_EDITABLE (priv->entry), 0, -1);
|
||
|
||
priv->in_entry_menu = FALSE;
|
||
if (priv->entry_menu_popdown_timeout)
|
||
{
|
||
g_source_remove (priv->entry_menu_popdown_timeout);
|
||
priv->entry_menu_popdown_timeout = 0;
|
||
}
|
||
|
||
g_signal_connect (priv->entry, "editing-done",
|
||
G_CALLBACK (gtk_cell_renderer_text_editing_done), celltext);
|
||
priv->focus_out_id = g_signal_connect_after (priv->entry, "notify::has-focus",
|
||
G_CALLBACK (gtk_cell_renderer_text_focus_changed),
|
||
celltext);
|
||
|
||
return GTK_CELL_EDITABLE (priv->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 inflexible, 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,
|
||
int number_of_rows)
|
||
{
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (renderer);
|
||
GtkCellRenderer *cell = GTK_CELL_RENDERER (renderer);
|
||
|
||
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)
|
||
{
|
||
int width, height;
|
||
|
||
gtk_cell_renderer_get_fixed_size (cell, &width, &height);
|
||
gtk_cell_renderer_set_fixed_size (cell, width, -1);
|
||
}
|
||
else
|
||
{
|
||
priv->fixed_height_rows = number_of_rows;
|
||
priv->calc_fixed_height = TRUE;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_cell_renderer_text_get_preferred_width (GtkCellRenderer *cell,
|
||
GtkWidget *widget,
|
||
int *minimum_size,
|
||
int *natural_size)
|
||
{
|
||
GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (cell);
|
||
GtkCellRendererTextPrivate *priv = gtk_cell_renderer_text_get_instance_private (celltext);
|
||
PangoLayout *layout;
|
||
PangoContext *context;
|
||
PangoFontMetrics *metrics;
|
||
PangoRectangle rect;
|
||
int char_width, text_width, ellipsize_chars, xpad;
|
||
int min_width, nat_width;
|
||
|
||
/* "width-chars" Hard-coded minimum width:
|
||
* - minimum size should be MAX (width-chars, strlen ("..."));
|
||
* - natural size should be MAX (width-chars, strlen (label->text));
|
||
*
|
||
* "wrap-width" User specified natural wrap width
|
||
* - minimum size should be MAX (width-chars, 0)
|
||
* - natural size should be MIN (wrap-width, strlen (label->text))
|
||
*/
|
||
gtk_cell_renderer_get_padding (cell, &xpad, NULL);
|
||
|
||
layout = get_layout (celltext, widget, NULL, 0);
|
||
|
||
/* Fetch the length of the complete unwrapped text */
|
||
pango_layout_set_width (layout, -1);
|
||
pango_layout_get_extents (layout, NULL, &rect);
|
||
text_width = rect.width;
|
||
|
||
/* Fetch the average size of a character */
|
||
context = pango_layout_get_context (layout);
|
||
metrics = pango_context_get_metrics (context,
|
||
pango_context_get_font_description (context),
|
||
pango_context_get_language (context));
|
||
|
||
char_width = pango_font_metrics_get_approximate_char_width (metrics);
|
||
|
||
pango_font_metrics_unref (metrics);
|
||
g_object_unref (layout);
|
||
|
||
/* enforce minimum width for ellipsized labels at ~3 chars */
|
||
if (priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE)
|
||
ellipsize_chars = 3;
|
||
else
|
||
ellipsize_chars = 0;
|
||
|
||
if ((priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE) || priv->width_chars > 0)
|
||
min_width = xpad * 2 +
|
||
MIN (PANGO_PIXELS_CEIL (text_width),
|
||
(PANGO_PIXELS (char_width) * MAX (priv->width_chars, ellipsize_chars)));
|
||
/* If no width-chars set, minimum for wrapping text will be the wrap-width */
|
||
else if (priv->wrap_width > -1)
|
||
min_width = xpad * 2 + rect.x + MIN (PANGO_PIXELS_CEIL (text_width), priv->wrap_width);
|
||
else
|
||
min_width = xpad * 2 + rect.x + PANGO_PIXELS_CEIL (text_width);
|
||
|
||
if (priv->width_chars > 0)
|
||
nat_width = xpad * 2 +
|
||
MAX ((PANGO_PIXELS (char_width) * priv->width_chars), PANGO_PIXELS_CEIL (text_width));
|
||
else
|
||
nat_width = xpad * 2 + PANGO_PIXELS_CEIL (text_width);
|
||
|
||
nat_width = MAX (nat_width, min_width);
|
||
|
||
if (priv->max_width_chars > 0)
|
||
{
|
||
int max_width = xpad * 2 + PANGO_PIXELS (char_width) * priv->max_width_chars;
|
||
|
||
min_width = MIN (min_width, max_width);
|
||
nat_width = MIN (nat_width, max_width);
|
||
}
|
||
|
||
if (minimum_size)
|
||
*minimum_size = min_width;
|
||
|
||
if (natural_size)
|
||
*natural_size = nat_width;
|
||
}
|
||
|
||
static void
|
||
gtk_cell_renderer_text_get_preferred_height_for_width (GtkCellRenderer *cell,
|
||
GtkWidget *widget,
|
||
int width,
|
||
int *minimum_height,
|
||
int *natural_height)
|
||
{
|
||
GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (cell);
|
||
PangoLayout *layout;
|
||
int text_height, xpad, ypad;
|
||
|
||
gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
|
||
|
||
layout = get_layout (celltext, widget, NULL, 0);
|
||
|
||
pango_layout_set_width (layout, (width - xpad * 2) * PANGO_SCALE);
|
||
pango_layout_get_pixel_size (layout, NULL, &text_height);
|
||
|
||
if (minimum_height)
|
||
*minimum_height = text_height + ypad * 2;
|
||
|
||
if (natural_height)
|
||
*natural_height = text_height + ypad * 2;
|
||
|
||
g_object_unref (layout);
|
||
}
|
||
|
||
static void
|
||
gtk_cell_renderer_text_get_preferred_height (GtkCellRenderer *cell,
|
||
GtkWidget *widget,
|
||
int *minimum_size,
|
||
int *natural_size)
|
||
{
|
||
int min_width;
|
||
|
||
/* Thankfully cell renderers dont rotate, so they only have to do
|
||
* height-for-width and not the opposite. Here we have only to return
|
||
* the height for the base minimum width of the renderer.
|
||
*
|
||
* Note this code path won't be followed by GtkTreeView which is
|
||
* height-for-width specifically.
|
||
*/
|
||
gtk_cell_renderer_get_preferred_width (cell, widget, &min_width, NULL);
|
||
gtk_cell_renderer_text_get_preferred_height_for_width (cell, widget, min_width,
|
||
minimum_size, natural_size);
|
||
}
|
||
|
||
static void
|
||
gtk_cell_renderer_text_get_aligned_area (GtkCellRenderer *cell,
|
||
GtkWidget *widget,
|
||
GtkCellRendererState flags,
|
||
const GdkRectangle *cell_area,
|
||
GdkRectangle *aligned_area)
|
||
{
|
||
GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (cell);
|
||
PangoLayout *layout;
|
||
int x_offset = 0;
|
||
int y_offset = 0;
|
||
|
||
layout = get_layout (celltext, widget, cell_area, flags);
|
||
get_size (cell, widget, cell_area, layout, &x_offset, &y_offset,
|
||
&aligned_area->width, &aligned_area->height);
|
||
|
||
aligned_area->x = cell_area->x + x_offset;
|
||
aligned_area->y = cell_area->y + y_offset;
|
||
|
||
g_object_unref (layout);
|
||
}
|