From 8c06a0db5c0d4974283e52522de35afb0cae104f Mon Sep 17 00:00:00 2001 From: nobody Date: Fri, 7 Apr 2000 15:22:35 +0000 Subject: This commit was manufactured by cvs2svn to create tag 'new-parser-anchor'. svn path=/tags/new-parser-anchor/; revision=2326 --- widgets/shortcut-bar/e-icon-bar-text-item.c | 1696 --------------------------- 1 file changed, 1696 deletions(-) delete mode 100644 widgets/shortcut-bar/e-icon-bar-text-item.c (limited to 'widgets/shortcut-bar/e-icon-bar-text-item.c') diff --git a/widgets/shortcut-bar/e-icon-bar-text-item.c b/widgets/shortcut-bar/e-icon-bar-text-item.c deleted file mode 100644 index 21c4fd9580..0000000000 --- a/widgets/shortcut-bar/e-icon-bar-text-item.c +++ /dev/null @@ -1,1696 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ - -/* - * Author : - * Damon Chaplin - * - * 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 - */ - -/* - * Based on gnome-icon-text-item: an editable text block with word wrapping - * for the GNOME canvas. - * - * Copyright (C) 1998, 1999 The Free Software Foundation - * - * Authors: Miguel de Icaza - * Federico Mena - */ - -/* - * EIconBarTextItem - An editable canvas text item for the EIconBar. - */ - -#include -#include -#include -#include -#include -#include -#include - -#include "e-icon-bar-text-item.h" - - -/* Margins used to display the information */ -#define MARGIN_X 2 -#define MARGIN_Y 2 - -/* Default fontset to be used if the user specified fontset is not found */ -#define DEFAULT_FONT_NAME "-adobe-helvetica-medium-r-normal--*-100-*-*-*-*-*-*," \ - "-*-*-medium-r-normal--10-*-*-*-*-*-*-*,*" - -/* Separators for text layout */ -#define DEFAULT_SEPARATORS " \t-.[]#" - -/* This is the string to draw when the text is clipped, e.g. '...'. */ -static gchar *e_icon_bar_text_item_ellipsis; - -/* Aliases to minimize screen use in my laptop */ -#define ITI(x) E_ICON_BAR_TEXT_ITEM (x) -#define ITI_CLASS(x) E_ICON_BAR_TEXT_ITEM_CLASS (x) -#define IS_ITI(x) E_IS_ICON_BAR_TEXT_ITEM (x) - - -typedef EIconBarTextItem Iti; - -/* Private part of the EIconBarTextItem structure */ -typedef struct { - /* Font */ - GdkFont *font; - - /* Hack: create an offscreen window and place an entry inside it */ - GtkEntry *entry; - GtkWidget *entry_top; - - /* Whether the user pressed the mouse while the item was unselected */ - guint unselected_click : 1; - - /* Whether we need to update the position */ - guint need_pos_update : 1; - - /* Whether we need to update the font */ - guint need_font_update : 1; - - /* Whether we need to update the text */ - guint need_text_update : 1; - - /* Whether we need to update because the editing/selected state changed */ - guint need_state_update : 1; -} ItiPrivate; - -typedef struct _EIconBarTextItemInfoRow EIconBarTextItemInfoRow; - -struct _EIconBarTextItemInfoRow { - gchar *text; - gint width; - GdkWChar *text_wc; /* text in wide characters */ - gint text_length; /* number of characters */ -}; - -struct _EIconBarTextItemInfo { - GList *rows; - GdkFont *font; - gint width; - gint height; - gint baseline_skip; -}; - -static GnomeCanvasItemClass *parent_class; - -enum { - ARG_0, - ARG_XALIGN, - ARG_JUSTIFY, - ARG_MAX_LINES, - ARG_SHOW_ELLIPSIS -}; - -enum { - TEXT_CHANGED, - HEIGHT_CHANGED, - WIDTH_CHANGED, - EDITING_STARTED, - EDITING_STOPPED, - SELECTION_STARTED, - SELECTION_STOPPED, - LAST_SIGNAL -}; - -static guint iti_signals [LAST_SIGNAL] = { 0 }; - -static GdkFont *default_font; - -static void e_icon_bar_text_item_free_info (EIconBarTextItemInfo *ti); -static EIconBarTextItemInfo *e_icon_bar_text_item_layout_text (EIconBarTextItem *iti, GdkFont *font, const gchar *text, const gchar *separators, gint max_width, gboolean confine); -static void e_icon_bar_text_item_paint_text (EIconBarTextItem *iti, - EIconBarTextItemInfo *ti, - GdkDrawable *drawable, - GdkGC *gc, - gint x, - gint y, - GtkJustification just); - - -/* Stops the editing state of an icon text item */ -static void -iti_stop_editing (Iti *iti) -{ - ItiPrivate *priv; - - priv = iti->priv; - - iti->editing = FALSE; - - gtk_widget_destroy (priv->entry_top); - priv->entry = NULL; - priv->entry_top = NULL; - - priv->need_state_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); - - gtk_signal_emit (GTK_OBJECT (iti), iti_signals[EDITING_STOPPED]); -} - -/* Lays out the text in an icon item */ -static void -layout_text (Iti *iti) -{ - ItiPrivate *priv; - char *text; - int old_width, old_height; - int width, height; - - priv = iti->priv; - - /* Save old size */ - - if (iti->ti) { - old_width = iti->ti->width + 2 * MARGIN_X; - old_height = iti->ti->height + 2 * MARGIN_Y; - - e_icon_bar_text_item_free_info (iti->ti); - } else { - old_width = 2 * MARGIN_X; - old_height = 2 * MARGIN_Y; - } - - /* Change the text layout */ - - if (iti->editing) - text = gtk_entry_get_text (priv->entry); - else - text = iti->text; - - iti->ti = e_icon_bar_text_item_layout_text (iti, priv->font, - text, - DEFAULT_SEPARATORS, - iti->width - 2 * MARGIN_X, - TRUE); - - /* Check the sizes and see if we need to emit any signals */ - - width = iti->ti->width + 2 * MARGIN_X; - height = iti->ti->height + 2 * MARGIN_Y; - - if (width != old_width) - gtk_signal_emit (GTK_OBJECT (iti), iti_signals[WIDTH_CHANGED]); - - if (height != old_height) - gtk_signal_emit (GTK_OBJECT (iti), iti_signals[HEIGHT_CHANGED]); -} - -/* Accepts the text in the off-screen entry of an icon text item */ -static void -iti_edition_accept (Iti *iti) -{ - ItiPrivate *priv; - gboolean accept; - - priv = iti->priv; - accept = TRUE; - - gtk_signal_emit (GTK_OBJECT (iti), iti_signals [TEXT_CHANGED], &accept); - - if (iti->editing){ - if (accept) { - if (iti->is_text_allocated) - g_free (iti->text); - - iti->text = g_strdup (gtk_entry_get_text (priv->entry)); - iti->is_text_allocated = 1; - } - - iti_stop_editing (iti); - } - - priv->need_text_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); -} - -/* Callback used when the off-screen entry of an icon text item is activated. - * When this happens, we have to accept edition. - */ -static void -iti_entry_activate (GtkWidget *entry, Iti *iti) -{ - iti_edition_accept (iti); -} - -/* Starts the editing state of an icon text item */ -static void -iti_start_editing (Iti *iti) -{ - ItiPrivate *priv; - - priv = iti->priv; - - if (iti->editing) - return; - - /* Trick: The actual edition of the entry takes place in a GtkEntry - * which is placed offscreen. That way we get all of the advantages - * from GtkEntry without duplicating code. Yes, this is a hack. - */ - priv->entry = (GtkEntry *) gtk_entry_new (); - gtk_entry_set_text (priv->entry, iti->text); - gtk_signal_connect (GTK_OBJECT (priv->entry), "activate", - GTK_SIGNAL_FUNC (iti_entry_activate), iti); - - priv->entry_top = gtk_window_new (GTK_WINDOW_POPUP); - gtk_container_add (GTK_CONTAINER (priv->entry_top), GTK_WIDGET (priv->entry)); - gtk_widget_set_uposition (priv->entry_top, 20000, 20000); - gtk_widget_show_all (priv->entry_top); - - gtk_editable_select_region (GTK_EDITABLE (priv->entry), 0, -1); - - iti->editing = TRUE; - - priv->need_text_update = TRUE; - priv->need_state_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); - - gtk_signal_emit (GTK_OBJECT (iti), iti_signals[EDITING_STARTED]); -} - -/* Destroy method handler for the icon text item */ -static void -iti_destroy (GtkObject *object) -{ - Iti *iti; - ItiPrivate *priv; - GnomeCanvasItem *item; - - g_return_if_fail (object != NULL); - g_return_if_fail (IS_ITI (object)); - - iti = ITI (object); - priv = iti->priv; - item = GNOME_CANVAS_ITEM (object); - - /* FIXME: stop selection and editing */ - - /* Queue redraw of bounding box */ - - gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2); - - /* Free everything */ - - if (iti->fontname) - g_free (iti->fontname); - - if (iti->text && iti->is_text_allocated) - g_free (iti->text); - - if (iti->ti) - e_icon_bar_text_item_free_info (iti->ti); - - if (priv->font) - gdk_font_unref (priv->font); - - if (priv->entry_top) - gtk_widget_destroy (priv->entry_top); - - g_free (priv); - - if (GTK_OBJECT_CLASS (parent_class)->destroy) - (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); -} - -/* set_arg handler for the icon text item */ -static void -iti_set_arg (GtkObject *object, GtkArg *arg, guint arg_id) -{ - Iti *iti; - GnomeCanvasItem *item; - ItiPrivate *priv; - gfloat xalign; - gint max_lines; - gboolean show_ellipsis; - GtkJustification justification; - - iti = ITI (object); - item = GNOME_CANVAS_ITEM (object); - priv = iti->priv; - - switch (arg_id) { - case ARG_XALIGN: - xalign = GTK_VALUE_FLOAT (*arg); - if (iti->xalign != xalign) { - iti->xalign = xalign; - priv->need_pos_update = TRUE; - gnome_canvas_item_request_update (item); - } - break; - case ARG_JUSTIFY: - justification = GTK_VALUE_ENUM (*arg); - if (iti->justification != justification) { - iti->justification = justification; - priv->need_text_update = TRUE; - gnome_canvas_item_request_update (item); - } - break; - case ARG_MAX_LINES: - max_lines = GTK_VALUE_INT (*arg); - if (iti->max_lines != max_lines) { - iti->max_lines = max_lines; - priv->need_text_update = TRUE; - gnome_canvas_item_request_update (item); - } - break; - case ARG_SHOW_ELLIPSIS: - show_ellipsis = GTK_VALUE_BOOL (*arg); - if (iti->show_ellipsis != show_ellipsis) { - iti->show_ellipsis = show_ellipsis; - priv->need_text_update = TRUE; - gnome_canvas_item_request_update (item); - } - break; - default: - break; - } -} - -static void -iti_get_arg (GtkObject *object, GtkArg *arg, guint arg_id) -{ - Iti *iti; - ItiPrivate *priv; - - iti = ITI (object); - priv = iti->priv; - - switch (arg_id) { - case ARG_XALIGN: - GTK_VALUE_FLOAT (*arg) = iti->xalign; - break; - case ARG_JUSTIFY: - GTK_VALUE_ENUM (*arg) = iti->justification; - break; - case ARG_MAX_LINES: - GTK_VALUE_INT (*arg) = iti->max_lines; - break; - case ARG_SHOW_ELLIPSIS: - GTK_VALUE_BOOL (*arg) = iti->show_ellipsis; - break; - default: - arg->type = GTK_TYPE_INVALID; - break; - } -} - -/* Loads the default font for icon text items if necessary */ -static GdkFont * -get_default_font (void) -{ - if (!default_font) { - /* FIXME: this is never unref-ed */ - default_font = gdk_fontset_load (DEFAULT_FONT_NAME); - g_assert (default_font != NULL); - } - - return gdk_font_ref (default_font); -} - -/* Recomputes the bounding box of an icon text item */ -static void -recompute_bounding_box (Iti *iti) -{ - GnomeCanvasItem *item; - double affine[6]; - ArtPoint p, q; - int x1, y1, x2, y2; - int width, height; - - item = GNOME_CANVAS_ITEM (iti); - - /* Compute width, height, position */ - - width = iti->ti->width + 2 * MARGIN_X; - height = iti->ti->height + 2 * MARGIN_Y; - - x1 = iti->x + (iti->width - width) * iti->xalign; - y1 = iti->y; - x2 = x1 + width; - y2 = y1 + height; - - /* Translate to world coordinates */ - - gnome_canvas_item_i2w_affine (item, affine); - - p.x = x1; - p.y = y1; - art_affine_point (&q, &p, affine); - item->x1 = q.x; - item->y1 = q.y; - - p.x = x2; - p.y = y2; - art_affine_point (&q, &p, affine); - item->x2 = q.x; - item->y2 = q.y; -} - -/* Update method for the icon text item */ -static void -iti_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags) -{ - Iti *iti; - ItiPrivate *priv; - - iti = ITI (item); - priv = iti->priv; - - if (parent_class->update) - (* parent_class->update) (item, affine, clip_path, flags); - - /* If necessary, queue a redraw of the old bounding box */ - - if ((flags & GNOME_CANVAS_UPDATE_VISIBILITY) - || (flags & GNOME_CANVAS_UPDATE_AFFINE) - || priv->need_pos_update - || priv->need_font_update - || priv->need_text_update) - gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2); - - if (priv->need_text_update) - layout_text (iti); - - /* Compute new bounds */ - - if (priv->need_pos_update - || priv->need_font_update - || priv->need_text_update) - recompute_bounding_box (iti); - - /* Queue redraw */ - - gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2); - - priv->need_pos_update = FALSE; - priv->need_font_update = FALSE; - priv->need_text_update = FALSE; - priv->need_state_update = FALSE; -} - -/* Draw the icon text item's text when it is being edited */ -static void -iti_paint_text (Iti *iti, GdkDrawable *drawable, int x, int y) -{ - ItiPrivate *priv; - EIconBarTextItemInfoRow *row; - EIconBarTextItemInfo *ti; - GtkStyle *style; - GdkGC *fg_gc, *bg_gc; - GdkGC *gc, *bgc, *sgc, *bsgc; - GList *item; - int xpos, len; - - priv = iti->priv; - style = GTK_WIDGET (GNOME_CANVAS_ITEM (iti)->canvas)->style; - - ti = iti->ti; - len = 0; - y += ti->font->ascent; - - /* - * Pointers to all of the GCs we use - */ - gc = style->black_gc; - bgc = style->white_gc; - sgc = style->fg_gc [GTK_STATE_SELECTED]; - bsgc = style->bg_gc [GTK_STATE_SELECTED]; - - for (item = ti->rows; item; item = item->next, len += (row ? row->text_length : 0)) { - GdkWChar *text_wc; - int text_length; - int cursor, offset, i; - int sel_start, sel_end; - - row = item->data; - - if (!row) { - y += ti->baseline_skip; - continue; - } - - text_wc = row->text_wc; - text_length = row->text_length; - - switch (iti->justification) { - case GTK_JUSTIFY_LEFT: - xpos = 0; - break; - - case GTK_JUSTIFY_RIGHT: - xpos = ti->width - row->width; - break; - - case GTK_JUSTIFY_CENTER: - xpos = (ti->width - row->width) / 2; - break; - - default: - /* Anyone care to implement GTK_JUSTIFY_FILL? */ - g_warning ("Justification type %d not supported. Using left-justification.", - (int) iti->justification); - xpos = 0; - } - - sel_start = GTK_EDITABLE (priv->entry)->selection_start_pos - len; - sel_end = GTK_EDITABLE (priv->entry)->selection_end_pos - len; - offset = 0; - cursor = GTK_EDITABLE (priv->entry)->current_pos - len; - - for (i = 0; *text_wc; text_wc++, i++) { - int size, px; - - size = gdk_text_width_wc (ti->font, text_wc, 1); - - if (i >= sel_start && i < sel_end) { - fg_gc = sgc; - bg_gc = bsgc; - } else { - fg_gc = gc; - bg_gc = bgc; - } - - px = x + xpos + offset; - gdk_draw_rectangle (drawable, - bg_gc, - TRUE, - px, - y - ti->font->ascent, - size, ti->baseline_skip); - - gdk_draw_text_wc (drawable, - ti->font, - fg_gc, - px, y, - text_wc, 1); - - if (cursor == i) - gdk_draw_line (drawable, - gc, - px - 1, - y - ti->font->ascent, - px - 1, - y + ti->font->descent - 1); - - offset += size; - } - - if (cursor == i) { - int px = x + xpos + offset; - - gdk_draw_line (drawable, - gc, - px - 1, - y - ti->font->ascent, - px - 1, - y + ti->font->descent - 1); - } - - y += ti->baseline_skip; - } -} - -/* Draw method handler for the icon text item */ -static void -iti_draw (GnomeCanvasItem *item, GdkDrawable *drawable, int x, int y, int width, int height) -{ - Iti *iti; - GtkStyle *style; - int w, h; - int xofs, yofs; - - iti = ITI (item); - - if (iti->ti) { - w = iti->ti->width + 2 * MARGIN_X; - h = iti->ti->height + 2 * MARGIN_Y; - } else { - w = 2 * MARGIN_X; - h = 2 * MARGIN_Y; - } - - xofs = item->x1 - x; - yofs = item->y1 - y; - - style = GTK_WIDGET (item->canvas)->style; - - if (iti->selected && !iti->editing) - gdk_draw_rectangle (drawable, - style->bg_gc[GTK_STATE_SELECTED], - TRUE, - xofs, yofs, - w, h); - - if (iti->editing) { - gdk_draw_rectangle (drawable, - style->white_gc, - TRUE, - xofs + 1, yofs + 1, - w - 2, h - 2); - gdk_draw_rectangle (drawable, - style->black_gc, - FALSE, - xofs, yofs, - w - 1, h - 1); - - iti_paint_text (iti, drawable, xofs + MARGIN_X, yofs + MARGIN_Y); - } else - e_icon_bar_text_item_paint_text (iti, iti->ti, - drawable, - style->fg_gc[(iti->selected - ? GTK_STATE_SELECTED - : GTK_STATE_NORMAL)], - xofs + MARGIN_X, - yofs + MARGIN_Y, - iti->justification); -} - -/* Point method handler for the icon text item */ -static double -iti_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item) -{ - double dx, dy; - - *actual_item = item; - - if (cx < item->x1) - dx = item->x1 - cx; - else if (cx > item->x2) - dx = cx - item->x2; - else - dx = 0.0; - - if (cy < item->y1) - dy = item->y1 - cy; - else if (cy > item->y2) - dy = cy - item->y2; - else - dy = 0.0; - - return sqrt (dx * dx + dy * dy); -} - -/* Given X, Y, a mouse position, return a valid index inside the edited text */ -static int -iti_idx_from_x_y (Iti *iti, int x, int y) -{ - ItiPrivate *priv; - EIconBarTextItemInfoRow *row; - int lines; - int line, col, i, idx; - GList *l; - - priv = iti->priv; - - if (iti->ti->rows == NULL) - return 0; - - lines = g_list_length (iti->ti->rows); - line = y / iti->ti->baseline_skip; - - if (line < 0) - line = 0; - else if (lines < line + 1) - line = lines - 1; - - /* Compute the base index for this line */ - for (l = iti->ti->rows, idx = i = 0; i < line; l = l->next, i++) { - row = l->data; - idx += row->text_length; - } - - row = g_list_nth (iti->ti->rows, line)->data; - col = 0; - if (row != NULL) { - int first_char; - int last_char; - - first_char = (iti->ti->width - row->width) / 2; - last_char = first_char + row->width; - - if (x < first_char) { - /* nothing */ - } else if (x > last_char) { - col = row->text_length; - } else { - GdkWChar *s = row->text_wc; - int pos = first_char; - - while (pos < last_char) { - pos += gdk_text_width_wc (iti->ti->font, s, 1); - if (pos > x) - break; - col++; - s++; - } - } - } - - idx += col; - - g_assert (idx <= priv->entry->text_size); - - return idx; -} - -/* Starts the selection state in the icon text item */ -static void -iti_start_selecting (Iti *iti, int idx, guint32 event_time) -{ - ItiPrivate *priv; - GtkEditable *e; - GdkCursor *ibeam; - - priv = iti->priv; - e = GTK_EDITABLE (priv->entry); - - gtk_editable_select_region (e, idx, idx); - gtk_editable_set_position (e, idx); - ibeam = gdk_cursor_new (GDK_XTERM); - gnome_canvas_item_grab (GNOME_CANVAS_ITEM (iti), - GDK_BUTTON_RELEASE_MASK | - GDK_POINTER_MOTION_MASK, - ibeam, event_time); - gdk_cursor_destroy (ibeam); - - gtk_editable_select_region (e, idx, idx); - e->current_pos = e->selection_start_pos; - e->has_selection = TRUE; - iti->selecting = TRUE; - - priv->need_state_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); - - gtk_signal_emit (GTK_OBJECT (iti), iti_signals[SELECTION_STARTED]); -} - -/* Stops the selection state in the icon text item */ -static void -iti_stop_selecting (Iti *iti, guint32 event_time) -{ - ItiPrivate *priv; - GnomeCanvasItem *item; - GtkEditable *e; - - priv = iti->priv; - item = GNOME_CANVAS_ITEM (iti); - e = GTK_EDITABLE (priv->entry); - - gnome_canvas_item_ungrab (item, event_time); - e->has_selection = FALSE; - iti->selecting = FALSE; - - priv->need_state_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); - gtk_signal_emit (GTK_OBJECT (iti), iti_signals[SELECTION_STOPPED]); -} - -/* Handles selection range changes on the icon text item */ -static void -iti_selection_motion (Iti *iti, int idx) -{ - ItiPrivate *priv; - GtkEditable *e; - - priv = iti->priv; - e = GTK_EDITABLE (priv->entry); - - if (idx < e->current_pos) { - e->selection_start_pos = idx; - e->selection_end_pos = e->current_pos; - } else { - e->selection_start_pos = e->current_pos; - e->selection_end_pos = idx; - } - - priv->need_state_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); -} - -/* Event handler for icon text items */ -static gint -iti_event (GnomeCanvasItem *item, GdkEvent *event) -{ - Iti *iti; - ItiPrivate *priv; - int idx; - double x, y; - - iti = ITI (item); - priv = iti->priv; - - switch (event->type) { - case GDK_KEY_PRESS: - if (!iti->editing) - break; - - if (event->key.keyval == GDK_Escape) - iti_stop_editing (iti); - else - gtk_widget_event (GTK_WIDGET (priv->entry), event); - - priv->need_text_update = TRUE; - gnome_canvas_item_request_update (item); - return TRUE; - - case GDK_BUTTON_PRESS: - if (!iti->editing) - break; - - if (iti->editing && event->button.button == 1) { - x = event->button.x - (item->x1 + MARGIN_X); - y = event->button.y - (item->y1 + MARGIN_Y); - idx = iti_idx_from_x_y (iti, x, y); - - iti_start_selecting (iti, idx, event->button.time); - } - - return TRUE; - - case GDK_MOTION_NOTIFY: - if (!iti->selecting) - break; - - x = event->motion.x - (item->x1 + MARGIN_X); - y = event->motion.y - (item->y1 + MARGIN_Y); - idx = iti_idx_from_x_y (iti, x, y); - iti_selection_motion (iti, idx); - return TRUE; - - case GDK_BUTTON_RELEASE: - if (iti->selecting && event->button.button == 1) - iti_stop_selecting (iti, event->button.time); - else - break; - - return TRUE; - - default: - break; - } - - return FALSE; -} - -/* Bounds method handler for the icon text item */ -static void -iti_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2) -{ - Iti *iti; - ItiPrivate *priv; - int width, height; - - iti = ITI (item); - priv = iti->priv; - - if (priv->need_text_update) { - layout_text (iti); - priv->need_text_update = FALSE; - } - - if (iti->ti) { - width = iti->ti->width + 2 * MARGIN_X; - height = iti->ti->height + 2 * MARGIN_Y; - } else { - width = 2 * MARGIN_X; - height = 2 * MARGIN_Y; - } - - *x1 = iti->x + (iti->width - width) * iti->xalign; - *y1 = iti->y; - *x2 = *x1 + width; - *y2 = *y1 + height; -} - -/* Class initialization function for the icon text item */ -static void -iti_class_init (EIconBarTextItemClass *text_item_class) -{ - GtkObjectClass *object_class; - GnomeCanvasItemClass *item_class; - - object_class = (GtkObjectClass *) text_item_class; - item_class = (GnomeCanvasItemClass *) text_item_class; - - parent_class = gtk_type_class (gnome_canvas_item_get_type ()); - - gtk_object_add_arg_type ("EIconBarTextItem::xalign", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_XALIGN); - gtk_object_add_arg_type ("EIconBarTextItem::justify", GTK_TYPE_JUSTIFICATION, GTK_ARG_READWRITE, ARG_JUSTIFY); - gtk_object_add_arg_type ("EIconBarTextItem::max_lines", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_MAX_LINES); - gtk_object_add_arg_type ("EIconBarTextItem::show_ellipsis", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_SHOW_ELLIPSIS); - - iti_signals [TEXT_CHANGED] = - gtk_signal_new ( - "text_changed", - GTK_RUN_LAST, - object_class->type, - GTK_SIGNAL_OFFSET (EIconBarTextItemClass, text_changed), - gtk_marshal_BOOL__NONE, - GTK_TYPE_BOOL, 0); - - iti_signals [HEIGHT_CHANGED] = - gtk_signal_new ( - "height_changed", - GTK_RUN_LAST, - object_class->type, - GTK_SIGNAL_OFFSET (EIconBarTextItemClass, height_changed), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - iti_signals [WIDTH_CHANGED] = - gtk_signal_new ( - "width_changed", - GTK_RUN_LAST, - object_class->type, - GTK_SIGNAL_OFFSET (EIconBarTextItemClass, width_changed), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - iti_signals[EDITING_STARTED] = - gtk_signal_new ( - "editing_started", - GTK_RUN_LAST, - object_class->type, - GTK_SIGNAL_OFFSET (EIconBarTextItemClass, editing_started), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - iti_signals[EDITING_STOPPED] = - gtk_signal_new ( - "editing_stopped", - GTK_RUN_LAST, - object_class->type, - GTK_SIGNAL_OFFSET (EIconBarTextItemClass, editing_stopped), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - iti_signals[SELECTION_STARTED] = - gtk_signal_new ( - "selection_started", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (EIconBarTextItemClass, selection_started), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - iti_signals[SELECTION_STOPPED] = - gtk_signal_new ( - "selection_stopped", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (EIconBarTextItemClass, selection_stopped), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - gtk_object_class_add_signals (object_class, iti_signals, LAST_SIGNAL); - - object_class->destroy = iti_destroy; - object_class->get_arg = iti_get_arg; - object_class->set_arg = iti_set_arg; - - item_class->update = iti_update; - item_class->draw = iti_draw; - item_class->point = iti_point; - item_class->bounds = iti_bounds; - item_class->event = iti_event; - - e_icon_bar_text_item_ellipsis = _("..."); -} - -/* Object initialization function for the icon text item */ -static void -iti_init (EIconBarTextItem *iti) -{ - ItiPrivate *priv; - - priv = g_new0 (ItiPrivate, 1); - iti->priv = priv; - - iti->xalign = 0.5; - iti->justification = GTK_JUSTIFY_CENTER; - iti->max_lines = -1; - iti->show_ellipsis = TRUE; -} - -/** - * e_icon_bar_text_item_configure: - * @iti: An #EIconBarTextItem. - * @x: X position in which to place the item. - * @y: Y position in which to place the item. - * @width: Maximum width allowed for this item, to be used for word wrapping. - * @fontname: Name of the fontset that should be used to display the text. - * @text: Text that is going to be displayed. - * @is_static: Whether @text points to a static string or not. - * - * This routine is used to configure an #EIconBarTextItem. - * - * @x and @y specify the coordinates where the item is placed in the canvas. - * The @x coordinate should be the leftmost position that the item can - * assume at any one time, that is, the left margin of the column in which the - * icon is to be placed. The @y coordinate specifies the top of the item. - * - * @width is the maximum width allowed for this icon text item. The coordinates - * define the upper-left corner of an item with maximum width; this may - * actually be outside the bounding box of the item if the text is narrower - * than the maximum width. - * - * If @is_static is true, it means that there is no need for the item to - * allocate memory for the string (it is a guarantee that the text is allocated - * by the caller and it will not be deallocated during the lifetime of this - * item). This is an optimization to reduce memory usage for large icon sets. - */ -void -e_icon_bar_text_item_configure (EIconBarTextItem *iti, int x, int y, - int width, const char *fontname, - const char *text, - gboolean is_static) -{ - ItiPrivate *priv; - - g_return_if_fail (iti != NULL); - g_return_if_fail (IS_ITI (iti)); - g_return_if_fail (width > 2 * MARGIN_X); - g_return_if_fail (text != NULL); - - priv = iti->priv; - - iti->x = x; - iti->y = y; - iti->width = width; - - if (iti->text && iti->is_text_allocated) - g_free (iti->text); - - iti->is_text_allocated = !is_static; - - /* This cast is to shut up the compiler */ - if (is_static) - iti->text = (char *) text; - else - iti->text = g_strdup (text); - - if (iti->fontname) - g_free (iti->fontname); - - iti->fontname = g_strdup (fontname ? fontname : DEFAULT_FONT_NAME); - - if (priv->font) - gdk_font_unref (priv->font); - - priv->font = NULL; - if (fontname) - priv->font = gdk_fontset_load (iti->fontname); - if (!priv->font) - priv->font = get_default_font (); - - /* Request update */ - - priv->need_pos_update = TRUE; - priv->need_font_update = TRUE; - priv->need_text_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); -} - -/** - * e_icon_bar_text_item_set_width: - * @iti: An #EIconBarTextItem. - * @width: Maximum width allowed for this item, to be used for word wrapping. - * - * This routine is used to set the maximum width of an #EIconBarTextItem. - */ -void -e_icon_bar_text_item_set_width (EIconBarTextItem *iti, int width) -{ - ItiPrivate *priv; - - g_return_if_fail (iti != NULL); - g_return_if_fail (IS_ITI (iti)); - g_return_if_fail (width > 2 * MARGIN_X); - - priv = iti->priv; - - if (iti->width == width) - return; - - iti->width = width; - - /* Request update */ - priv->need_text_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); -} - -/** - * e_icon_bar_text_item_setxy: - * @iti: An #EIconBarTextItem. - * @x: X position. - * @y: Y position. - * - * Sets the coordinates at which the #EIconBarTextItem should be placed. - * - * See also: e_icon_bar_text_item_configure(). - */ -void -e_icon_bar_text_item_setxy (EIconBarTextItem *iti, int x, int y) -{ - ItiPrivate *priv; - - g_return_if_fail (iti != NULL); - g_return_if_fail (IS_ITI (iti)); - - priv = iti->priv; - - iti->x = x; - iti->y = y; - - priv->need_pos_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); -} - -/** - * e_icon_bar_text_item_select: - * @iti: An #EIconBarTextItem. - * @sel: Whether the item should be displayed as selected. - * - * This function is used to control whether an icon text item is displayed as - * selected or not. Mouse events are ignored by the item when it is unselected; - * when the user clicks on a selected icon text item, it will start the text - * editing process. - */ -void -e_icon_bar_text_item_select (EIconBarTextItem *iti, int sel) -{ - ItiPrivate *priv; - - g_return_if_fail (iti != NULL); - g_return_if_fail (IS_ITI (iti)); - - priv = iti->priv; - - if (!iti->selected == !sel) - return; - - iti->selected = sel ? TRUE : FALSE; - - if (!iti->selected && iti->editing) - iti_edition_accept (iti); - - priv->need_state_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); -} - -/** - * e_icon_bar_text_item_get_text: - * @iti: An #EIconBarTextItem. - * - * Returns the current text. The client should not free this string, as it is - * internal to the #EIconBarTextItem. - */ -char * -e_icon_bar_text_item_get_text (EIconBarTextItem *iti) -{ - ItiPrivate *priv; - - g_return_val_if_fail (iti != NULL, NULL); - g_return_val_if_fail (IS_ITI (iti), NULL); - - priv = iti->priv; - - if (iti->editing) - return gtk_entry_get_text (priv->entry); - else - return iti->text; -} - - -/** - * e_icon_bar_text_item_set_text: - * @iti: An #EIconBarTextItem. - * @text: Text that is going to be displayed. - * @is_static: Whether @text points to a static string or not. - * - * If @is_static is true, it means that there is no need for the item to - * allocate memory for the string (it is a guarantee that the text is allocated - * by the caller and it will not be deallocated during the lifetime of this - * item). This is an optimization to reduce memory usage for large icon sets. - */ -void -e_icon_bar_text_item_set_text (EIconBarTextItem *iti, const char *text, - gboolean is_static) -{ - ItiPrivate *priv; - - g_return_if_fail (iti != NULL); - g_return_if_fail (IS_ITI (iti)); - g_return_if_fail (text != NULL); - - priv = iti->priv; - - if (iti->text && iti->is_text_allocated) - g_free (iti->text); - - iti->is_text_allocated = !is_static; - - /* This cast is to shut up the compiler */ - if (is_static) - iti->text = (char *) text; - else - iti->text = g_strdup (text); - - /* Request update */ - - priv->need_text_update = TRUE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (iti)); -} - - -/** - * e_icon_bar_text_item_start_editing: - * @iti: An #EIconBarTextItem. - * - * Starts the editing state of an #EIconBarTextItem. - **/ -void -e_icon_bar_text_item_start_editing (EIconBarTextItem *iti) -{ - g_return_if_fail (iti != NULL); - g_return_if_fail (IS_ITI (iti)); - - if (iti->editing) - return; - - iti->selected = TRUE; /* Ensure that we are selected */ - gnome_canvas_item_grab_focus (GNOME_CANVAS_ITEM (iti)); - iti_start_editing (iti); -} - -/** - * e_icon_bar_text_item_stop_editing: - * @iti: An #EIconBarTextItem. - * @accept: Whether to accept the current text or to discard it. - * - * Terminates the editing state of an icon text item. The @accept argument - * controls whether the item's current text should be accepted or discarded. - * If it is discarded, then the icon's original text will be restored. - **/ -void -e_icon_bar_text_item_stop_editing (EIconBarTextItem *iti, - gboolean accept) -{ - g_return_if_fail (iti != NULL); - g_return_if_fail (IS_ITI (iti)); - - if (!iti->editing) - return; - - if (accept) - iti_edition_accept (iti); - else - iti_stop_editing (iti); -} - - -/** - * e_icon_bar_text_item_get_type: - * - * Registers the &EIconBarTextItem class if necessary, and returns the type ID - * associated to it. - * - * Return value: the type ID of the #EIconBarTextItem class. - **/ -GtkType -e_icon_bar_text_item_get_type (void) -{ - static GtkType iti_type = 0; - - if (!iti_type) { - static const GtkTypeInfo iti_info = { - "EIconBarTextItem", - sizeof (EIconBarTextItem), - sizeof (EIconBarTextItemClass), - (GtkClassInitFunc) iti_class_init, - (GtkObjectInitFunc) iti_init, - NULL, /* reserved_1 */ - NULL, /* reserved_2 */ - (GtkClassInitFunc) NULL - }; - - iti_type = gtk_type_unique (gnome_canvas_item_get_type (), &iti_info); - } - - return iti_type; -} - - -static void -free_row (gpointer data, gpointer user_data) -{ - EIconBarTextItemInfoRow *row; - - if (data) { - row = data; - g_free (row->text); - g_free (row->text_wc); - g_free (row); - } -} - -/* - * e_icon_bar_text_item_free_info: - * @ti: An icon text info structure. - * - * Frees a &EIconBarTextItemInfo structure. You should call this instead of - * freeing the structure yourself. - */ -static void -e_icon_bar_text_item_free_info (EIconBarTextItemInfo *ti) -{ - g_list_foreach (ti->rows, free_row, NULL); - g_list_free (ti->rows); - g_free (ti); -} - -/* - * e_icon_bar_text_item_layout_text: - * @font: Name of the font that will be used to render the text. - * @text: Text to be formatted. - * @separators: Separators used for word wrapping, can be NULL. - * @max_width: Width in pixels to be used for word wrapping. - * @confine: Whether it is mandatory to wrap at @max_width. - * - * Creates a new &EIconBarTextItemInfo structure by wrapping the specified - * text. If non-NULL, the @separators argument defines a set of characters - * to be used as word delimiters for performing word wrapping. If it is - * NULL, then only spaces will be used as word delimiters. - * - * The @max_width argument is used to specify the width at which word - * wrapping will be performed. If there is a very long word that does not - * fit in a single line, the @confine argument can be used to specify - * whether the word should be unconditionally split to fit or whether - * the maximum width should be increased as necessary. - * - * Return value: A newly-created &EIconBarTextItemInfo structure. - */ -static EIconBarTextItemInfo * -e_icon_bar_text_item_layout_text (EIconBarTextItem *iti, GdkFont *font, - const gchar *text, const gchar *separators, - gint max_width, gboolean confine) -{ - EIconBarTextItemInfo *ti; - EIconBarTextItemInfoRow *row; - GdkWChar *row_end; - GdkWChar *s, *word_start, *word_end, *old_word_end; - GdkWChar *sub_text; - int i, w_len, w; - GdkWChar *text_wc, *text_iter, *separators_wc; - int text_len_wc, separators_len_wc; - gboolean restrict_lines; - int lines; - - g_return_val_if_fail (font != NULL, NULL); - g_return_val_if_fail (text != NULL, NULL); - - if (!separators) - separators = " "; - - text_wc = g_new (GdkWChar, strlen (text) + 1); - text_len_wc = gdk_mbstowcs (text_wc, text, strlen (text)); - if (text_len_wc < 0) text_len_wc = 0; - text_wc[text_len_wc] = 0; - - separators_wc = g_new (GdkWChar, strlen (separators) + 1); - separators_len_wc = gdk_mbstowcs (separators_wc, separators, strlen (separators)); - if (separators_len_wc < 0) separators_len_wc = 0; - separators_wc[separators_len_wc] = 0; - - ti = g_new (EIconBarTextItemInfo, 1); - - ti->rows = NULL; - ti->font = font; - ti->width = 0; - ti->height = 0; - ti->baseline_skip = font->ascent + font->descent; - - word_end = NULL; - - if (!iti->editing && iti->max_lines != -1) - restrict_lines = TRUE; - else - restrict_lines = FALSE; - - text_iter = text_wc; - lines = 0; - while (*text_iter) { - /* If we are restricting the height, and this is the last line, - and we are displaying the ellipsis, then subtract the width - of the ellipsis from our max_width. */ - if (restrict_lines && lines == iti->max_lines - 1 - && iti->show_ellipsis) { - max_width -= gdk_string_measure (font, e_icon_bar_text_item_ellipsis); - } - - for (row_end = text_iter; *row_end != 0 && *row_end != '\n'; row_end++); - - /* Accumulate words from this row until they don't fit in the max_width */ - - s = text_iter; - - while (s < row_end) { - word_start = s; - old_word_end = word_end; - for (word_end = word_start; *word_end; word_end++) { - GdkWChar *p; - for (p = separators_wc; *p; p++) { - if (*word_end == *p) - goto found; - } - } - found: - if (word_end < row_end) - word_end++; - - if (gdk_text_width_wc (font, text_iter, word_end - text_iter) > max_width) { - if (word_start == text_iter - || (restrict_lines - && lines == iti->max_lines - 1)) { - if (confine) { - /* We must force-split the word. Look for a proper - * place to do it. - */ - - w_len = word_end - text_iter; - - for (i = 1; i < w_len; i++) { - w = gdk_text_width_wc (font, text_iter, i); - if (w > max_width) { - if (i == 1) - /* Shit, not even a single character fits */ - max_width = w; - else - break; - } - } - - /* Create sub-row with the chars that fit */ - - sub_text = g_new (GdkWChar, i); - memcpy (sub_text, text_iter, (i - 1) * sizeof (GdkWChar)); - sub_text[i - 1] = 0; - - row = g_new (EIconBarTextItemInfoRow, 1); - row->text_wc = sub_text; - row->text_length = i - 1; - row->width = gdk_text_width_wc (font, sub_text, i - 1); - row->text = gdk_wcstombs(sub_text); - if (row->text == NULL) - row->text = g_strdup(""); - - ti->rows = g_list_append (ti->rows, row); - - if (row->width > ti->width) - ti->width = row->width; - - ti->height += ti->baseline_skip; - - /* Bump the text pointer */ - - text_iter += i - 1; - s = text_iter; - - lines++; - if (restrict_lines - && lines >= iti->max_lines) - break; - - continue; - } else - max_width = gdk_text_width_wc (font, word_start, word_end - word_start); - - continue; /* Retry split */ - } else { - word_end = old_word_end; /* Restore to region that does fit */ - break; /* Stop the loop because we found something that doesn't fit */ - } - } - - s = word_end; - } - - if (restrict_lines && lines >= iti->max_lines) - break; - - /* Append row */ - - if (text_iter == row_end) { - /* We are on a newline, so append an empty row */ - - ti->rows = g_list_append (ti->rows, NULL); - ti->height += ti->baseline_skip; - - /* Next! */ - - text_iter = row_end + 1; - - lines++; - if (restrict_lines && lines >= iti->max_lines) - break; - - } else { - /* Create subrow and append it to the list */ - - int sub_len; - sub_len = word_end - text_iter; - - sub_text = g_new (GdkWChar, sub_len + 1); - memcpy (sub_text, text_iter, sub_len * sizeof (GdkWChar)); - sub_text[sub_len] = 0; - - row = g_new (EIconBarTextItemInfoRow, 1); - row->text_wc = sub_text; - row->text_length = sub_len; - row->width = gdk_text_width_wc (font, sub_text, sub_len); - row->text = gdk_wcstombs(sub_text); - if (row->text == NULL) - row->text = g_strdup(""); - - ti->rows = g_list_append (ti->rows, row); - - if (row->width > ti->width) - ti->width = row->width; - - ti->height += ti->baseline_skip; - - /* Next! */ - - text_iter = word_end; - - lines++; - if (restrict_lines && lines >= iti->max_lines) - break; - } - } - - /* Check if we've had to clip the text. */ - iti->is_clipped = *text_iter ? TRUE : FALSE; - - g_free (text_wc); - g_free (separators_wc); - return ti; -} - -/* - * e_icon_bar_text_item_paint_text: - * @ti: An icon text info structure. - * @drawable: Target drawable. - * @gc: GC used to render the string. - * @x: Left coordinate for text. - * @y: Upper coordinate for text. - * @just: Justification for text. - * - * Paints the formatted text in the icon text info structure onto a drawable. - * This is just a sample implementation; applications can choose to use other - * rendering functions. - */ -static void -e_icon_bar_text_item_paint_text (EIconBarTextItem *iti, - EIconBarTextItemInfo *ti, - GdkDrawable *drawable, GdkGC *gc, - gint x, gint y, GtkJustification just) -{ - GList *item; - EIconBarTextItemInfoRow *row; - int xpos, line, width; - gboolean show_ellipsis; - - g_return_if_fail (ti != NULL); - g_return_if_fail (drawable != NULL); - g_return_if_fail (gc != NULL); - - y += ti->font->ascent; - - for (item = ti->rows, line = 1; item; item = item->next, line++) { - - if (item->data) { - row = item->data; - width = row->width; - } - - /* If this is the last line, and the text has been clipped, - and show_ellipsis is TRUE, display '...' */ - if (line == iti->max_lines && iti->is_clipped) { - show_ellipsis = TRUE; - width += gdk_string_measure (ti->font, e_icon_bar_text_item_ellipsis); - } else { - show_ellipsis = FALSE; - } - - switch (just) { - case GTK_JUSTIFY_LEFT: - xpos = 0; - break; - - case GTK_JUSTIFY_RIGHT: - xpos = ti->width - width; - break; - - case GTK_JUSTIFY_CENTER: - xpos = (ti->width - width) / 2; - break; - - default: - /* Anyone care to implement GTK_JUSTIFY_FILL? */ - g_warning ("Justification type %d not supported. Using left-justification.", - (int) just); - xpos = 0; - } - - if (item->data) - gdk_draw_text_wc (drawable, ti->font, gc, x + xpos, y, row->text_wc, row->text_length); - - if (show_ellipsis) - gdk_draw_string (drawable, ti->font, gc, - x + xpos + row->width, y, - e_icon_bar_text_item_ellipsis); - - y += ti->baseline_skip; - } -} -- cgit v1.2.3