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-rw-r--r--widgets/misc/e-clipped-label.c378
1 files changed, 0 insertions, 378 deletions
diff --git a/widgets/misc/e-clipped-label.c b/widgets/misc/e-clipped-label.c
deleted file mode 100644
index 6f6fc9731d..0000000000
--- a/widgets/misc/e-clipped-label.c
+++ /dev/null
@@ -1,378 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-
-/*
- * Author :
- * Damon Chaplin <damon@helixcode.com>
- *
- * Copyright 1999, Helix Code, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- */
-
-/*
- * This is similar to GtkLabel but clips itself and displays '...' if it
- * can't fit inside its allocated area. The intended use is for inside buttons
- * that are a fixed size. The GtkLabel would normally display only the middle
- * part of the text, which doesn't look very good. This only supports one line
- * of text (so no wrapping/justification), without underlined characters.
- */
-
-#include <math.h>
-
-#include <gdk/gdki18n.h>
-#include <libgnome/gnome-defs.h>
-#include <libgnome/gnome-i18n.h>
-
-#include "e-clipped-label.h"
-
-
-static void e_clipped_label_class_init (EClippedLabelClass *class);
-static void e_clipped_label_init (EClippedLabel *label);
-static void e_clipped_label_size_request (GtkWidget *widget,
- GtkRequisition *requisition);
-static void e_clipped_label_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
-static gint e_clipped_label_expose (GtkWidget *widget,
- GdkEventExpose *event);
-static void e_clipped_label_recalc_chars_displayed (EClippedLabel *label);
-static void e_clipped_label_destroy (GtkObject *object);
-
-
-static GtkMiscClass *parent_class;
-
-/* This is the string to draw when the label is clipped, e.g. '...'. */
-static gchar *e_clipped_label_ellipsis;
-
-/* Flags used in chars_displayed field. Must be negative. */
-#define E_CLIPPED_LABEL_NEED_RECALC -1
-#define E_CLIPPED_LABEL_SHOW_ENTIRE_LABEL -2
-
-
-GtkType
-e_clipped_label_get_type (void)
-{
- static GtkType e_clipped_label_type = 0;
-
- if (!e_clipped_label_type){
- GtkTypeInfo e_clipped_label_info = {
- "EClippedLabel",
- sizeof (EClippedLabel),
- sizeof (EClippedLabelClass),
- (GtkClassInitFunc) e_clipped_label_class_init,
- (GtkObjectInitFunc) e_clipped_label_init,
- NULL, /* reserved 1 */
- NULL, /* reserved 2 */
- (GtkClassInitFunc) NULL
- };
-
- parent_class = gtk_type_class (GTK_TYPE_MISC);
- e_clipped_label_type = gtk_type_unique (GTK_TYPE_MISC,
- &e_clipped_label_info);
- }
-
- return e_clipped_label_type;
-}
-
-
-static void
-e_clipped_label_class_init (EClippedLabelClass *class)
-{
- GtkObjectClass *object_class;
- GtkWidgetClass *widget_class;
-
- object_class = (GtkObjectClass *) class;
- widget_class = (GtkWidgetClass *) class;
-
- /* Method override */
- widget_class->size_request = e_clipped_label_size_request;
- widget_class->size_allocate = e_clipped_label_size_allocate;
- widget_class->expose_event = e_clipped_label_expose;
-
- object_class->destroy = e_clipped_label_destroy;
-
- e_clipped_label_ellipsis = _("...");
-}
-
-
-static void
-e_clipped_label_init (EClippedLabel *label)
-{
- GTK_WIDGET_SET_FLAGS (label, GTK_NO_WINDOW);
-
- label->label = NULL;
- label->label_wc = NULL;
- label->chars_displayed = E_CLIPPED_LABEL_NEED_RECALC;
-}
-
-
-/**
- * e_clipped_label_new:
- *
- * @text: The label text.
- * @Returns: A new #EClippedLabel.
- *
- * Creates a new #EClippedLabel with the given text.
- **/
-GtkWidget *
-e_clipped_label_new (const gchar *text)
-{
- GtkWidget *label;
-
- label = GTK_WIDGET (gtk_type_new (e_clipped_label_get_type ()));
-
- if (text && *text)
- e_clipped_label_set_text (E_CLIPPED_LABEL (label), text);
-
- return label;
-}
-
-
-static void
-e_clipped_label_size_request (GtkWidget *widget,
- GtkRequisition *requisition)
-{
- EClippedLabel *label;
- GdkFont *font;
-
- g_return_if_fail (E_IS_CLIPPED_LABEL (widget));
- g_return_if_fail (requisition != NULL);
-
- label = E_CLIPPED_LABEL (widget);
- font = widget->style->font;
-
- requisition->width = 0;
- requisition->height = font->ascent + font->descent
- + 2 * GTK_MISC (widget)->ypad;
-}
-
-
-static void
-e_clipped_label_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
-{
- EClippedLabel *label;
-
- label = E_CLIPPED_LABEL (widget);
-
- widget->allocation = *allocation;
-
- /* Flag that we need to recalculate how many characters to display. */
- label->chars_displayed = E_CLIPPED_LABEL_NEED_RECALC;
-}
-
-
-static gint
-e_clipped_label_expose (GtkWidget *widget,
- GdkEventExpose *event)
-{
- EClippedLabel *label;
- GtkMisc *misc;
- gint x, y;
- GdkFont *font;
- gchar *tmp_str, tmp_ch;
-
- g_return_val_if_fail (E_IS_CLIPPED_LABEL (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
-
- label = E_CLIPPED_LABEL (widget);
- misc = GTK_MISC (widget);
- font = widget->style->font;
-
- /* If the label isn't visible or has no text, just return. */
- if (!GTK_WIDGET_VISIBLE (widget) || !GTK_WIDGET_MAPPED (widget)
- || !label->label || (*label->label == '\0'))
- return TRUE;
-
- /* Recalculate the number of characters displayed, if necessary. */
- if (label->chars_displayed == E_CLIPPED_LABEL_NEED_RECALC)
- e_clipped_label_recalc_chars_displayed (label);
-
- /*
- * GC Clipping
- */
- gdk_gc_set_clip_rectangle (widget->style->white_gc,
- &event->area);
- gdk_gc_set_clip_rectangle (widget->style->fg_gc[widget->state],
- &event->area);
-
- y = floor (widget->allocation.y + (gint)misc->ypad
- + (((gint)widget->allocation.height - 2 * (gint)misc->ypad
- - (gint)font->ascent - font->descent)
- * misc->yalign) + 0.5) + font->ascent;
-
- if (label->chars_displayed == E_CLIPPED_LABEL_SHOW_ENTIRE_LABEL) {
- x = floor (widget->allocation.x + (gint)misc->xpad
- + (((gint)widget->allocation.width -
- (gint)label->label_width - 2 * (gint)misc->xpad)
- * misc->xalign) + 0.5);
-
- gtk_paint_string (widget->style, widget->window, widget->state,
- &event->area, widget, "label",
- x, y, label->label);
- } else {
- x = widget->allocation.x + (gint)misc->xpad;
-
- tmp_ch = label->label_wc[label->chars_displayed];
- label->label_wc[label->chars_displayed] = '\0';
- tmp_str = gdk_wcstombs (label->label_wc);
- if (tmp_str) {
- gtk_paint_string (widget->style, widget->window,
- widget->state, &event->area,
- widget, "label",
- x, y, tmp_str);
- g_free (tmp_str);
- }
- label->label_wc[label->chars_displayed] = tmp_ch;
-
- x = widget->allocation.x + (gint)misc->xpad
- + label->ellipsis_x;
- gtk_paint_string (widget->style, widget->window, widget->state,
- &event->area, widget, "label",
- x, y, e_clipped_label_ellipsis);
- }
-
- gdk_gc_set_clip_mask (widget->style->white_gc, NULL);
- gdk_gc_set_clip_mask (widget->style->fg_gc[widget->state], NULL);
-
- return TRUE;
-}
-
-
-static void
-e_clipped_label_destroy (GtkObject *object)
-{
- EClippedLabel *label;
-
- g_return_if_fail (E_IS_CLIPPED_LABEL (object));
-
- label = E_CLIPPED_LABEL(object);
-
- g_free (label->label);
- g_free (label->label_wc);
-}
-
-
-/**
- * e_clipped_label_get_text:
- *
- * @label: An #EClippedLabel.
- * @Return: The label text.
- *
- * Returns the label text, or NULL.
- **/
-gchar*
-e_clipped_label_get_text (EClippedLabel *label)
-{
- g_return_val_if_fail (E_IS_CLIPPED_LABEL (label), NULL);
-
- return label->label;
-}
-
-
-/**
- * e_clipped_label_set_text:
- *
- * @label: An #EClippedLabel.
- * @text: The new label text.
- *
- * Sets the label text.
- **/
-void
-e_clipped_label_set_text (EClippedLabel *label,
- const gchar *text)
-{
- gint len;
-
- g_return_if_fail (E_IS_CLIPPED_LABEL (label));
-
- if (label->label != text || !label->label || !text
- || strcmp (label->label, text)) {
- g_free (label->label);
- g_free (label->label_wc);
- label->label = NULL;
- label->label_wc = NULL;
-
- if (text) {
- label->label = g_strdup (text);
- len = strlen (text);
- label->label_wc = g_new (GdkWChar, len + 1);
- label->wc_len = gdk_mbstowcs (label->label_wc,
- label->label, len + 1);
- label->label_wc[label->wc_len] = '\0';
- }
-
- /* Reset the number of characters displayed, so it is
- recalculated when needed. */
- label->chars_displayed = E_CLIPPED_LABEL_NEED_RECALC;
-
- /* We don't queue a resize, since the label should not affect
- the widget size, but we queue a draw. */
- gtk_widget_queue_draw (GTK_WIDGET (label));
- }
-}
-
-
-static void
-e_clipped_label_recalc_chars_displayed (EClippedLabel *label)
-{
- GdkFont *font;
- gint max_width, width, ch, last_width;
-
- font = GTK_WIDGET (label)->style->font;
-
- max_width = GTK_WIDGET (label)->allocation.width
- - 2 * GTK_MISC (label)->xpad;
-
- if (!label->label) {
- label->chars_displayed = 0;
- return;
- }
-
- /* See if the entire label fits in the allocated width. */
- label->label_width = gdk_string_width (font, label->label);
- if (label->label_width <= max_width) {
- label->chars_displayed = E_CLIPPED_LABEL_SHOW_ENTIRE_LABEL;
- return;
- }
-
- /* Calculate the width of the ellipsis string. */
- max_width -= gdk_string_measure (font, e_clipped_label_ellipsis);
-
- if (max_width <= 0) {
- label->chars_displayed = 0;
- label->ellipsis_x = 0;
- return;
- }
-
- /* Step through the wide-char label, adding on the widths of the
- characters, until we can't fit any more in. */
- width = last_width = 0;
- for (ch = 0; ch < label->wc_len; ch++) {
- width += gdk_char_width_wc (font, label->label_wc[ch]);
-
- if (width > max_width) {
- label->chars_displayed = ch;
- label->ellipsis_x = last_width;
- return;
- }
-
- last_width = width;
- }
-
- g_warning ("Clipped label width not exceeded as expected");
- label->chars_displayed = E_CLIPPED_LABEL_SHOW_ENTIRE_LABEL;
-}
-