Added minicard and text stuff.

	* widgets/Makefile.am: Added minicard and text stuff.

	* widgets/e-minicard.c, widgets/e-minicard.h,
	widgets/e-minicard-label.c, widgets/e-minicard-label.h: Added
	canvas items for the minicard view in the contact manager.

	* widgets/test-minicard.c, widgets/test-minicard-label.c: Tests
	for the minicard items.

	* widgets/e-text.h, widgets/e-text.c: New canvas item.  Based on
	GnomeCanvasText.  Adds ellipsis capabilities.  Used in
	e-minicard*.[ch].

	* widgets/.cvsignore: Added minicard-test and minicard-label-test.

svn path=/trunk/; revision=1552

1 files changed, 1411 insertions, 0 deletions

diff --git a/widgets/e-text/e-text.c b/widgets/e-text/e-text.c
new file mode 100644
index 0000000000..b88130e3c8
--- /dev/null
+++ b/widgets/e-text/e-text.c
@@ -0,0 +1,1411 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* EText - Text item for evolution.
+ * Copyright (C) 2000 Helix Code, Inc.
+ *
+ * Author: Chris Lahey <clahey@umich.edu>
+ *
+ * A majority of code taken from:
+ *
+ * Text item type for GnomeCanvas widget
+ *
+ * GnomeCanvas is basically a port of the Tk toolkit's most excellent
+ * canvas widget.  Tk is copyrighted by the Regents of the University
+ * of California, Sun Microsystems, and other parties.
+ *
+ * Copyright (C) 1998 The Free Software Foundation
+ *
+ * Author: Federico Mena <federico@nuclecu.unam.mx> */
+
+#include <config.h>
+#include <math.h>
+#include "e-text.h"
+#include <gdk/gdkx.h> /* for BlackPixel */
+#include <libart_lgpl/art_affine.h>
+#include <libart_lgpl/art_rgb.h>
+#include <libart_lgpl/art_rgb_bitmap_affine.h>
+
+
+
+/* This defines a line of text */
+struct line {
+	char *text;	/* Line's text, it is a pointer into the text->text string */
+	int length;	/* Line's length in characters */
+	int width;	/* Line's width in pixels */
+	int ellipsis_length;  /* Length before adding ellipsis */
+};
+
+
+
+/* Object argument IDs */
+enum {
+	ARG_0,
+	ARG_TEXT,
+	ARG_X,
+	ARG_Y,
+	ARG_FONT,
+        ARG_FONTSET,
+	ARG_FONT_GDK,
+	ARG_ANCHOR,
+	ARG_JUSTIFICATION,
+	ARG_CLIP_WIDTH,
+	ARG_CLIP_HEIGHT,
+	ARG_CLIP,
+	ARG_X_OFFSET,
+	ARG_Y_OFFSET,
+	ARG_FILL_COLOR,
+	ARG_FILL_COLOR_GDK,
+	ARG_FILL_COLOR_RGBA,
+	ARG_FILL_STIPPLE,
+	ARG_TEXT_WIDTH,
+	ARG_TEXT_HEIGHT,
+	ARG_USE_ELLIPSIS,
+	ARG_ELLIPSIS
+};
+
+
+static void e_text_class_init (ETextClass *class);
+static void e_text_init (EText *text);
+static void e_text_destroy (GtkObject *object);
+static void e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id);
+static void e_text_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);
+
+static void e_text_update (GnomeCanvasItem *item, double *affine,
+				      ArtSVP *clip_path, int flags);
+static void e_text_realize (GnomeCanvasItem *item);
+static void e_text_unrealize (GnomeCanvasItem *item);
+static void e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
+				    int x, int y, int width, int height);
+static double e_text_point (GnomeCanvasItem *item, double x, double y, int cx, int cy,
+				       GnomeCanvasItem **actual_item);
+static void e_text_bounds (GnomeCanvasItem *item,
+				      double *x1, double *y1, double *x2, double *y2);
+static void e_text_render (GnomeCanvasItem *item, GnomeCanvasBuf *buf);
+
+static ETextSuckFont *e_suck_font (GdkFont *font);
+static void e_suck_font_free (ETextSuckFont *suckfont);
+
+
+static GnomeCanvasItemClass *parent_class;
+
+
+
+/**
+ * e_text_get_type:
+ * @void: 
+ * 
+ * Registers the &EText class if necessary, and returns the type ID
+ * associated to it.
+ * 
+ * Return value: The type ID of the &EText class.
+ **/
+GtkType
+e_text_get_type (void)
+{
+	static GtkType text_type = 0;
+
+	if (!text_type) {
+		GtkTypeInfo text_info = {
+			"EText",
+			sizeof (EText),
+			sizeof (ETextClass),
+			(GtkClassInitFunc) e_text_class_init,
+			(GtkObjectInitFunc) e_text_init,
+			NULL, /* reserved_1 */
+			NULL, /* reserved_2 */
+			(GtkClassInitFunc) NULL
+		};
+
+		text_type = gtk_type_unique (gnome_canvas_item_get_type (), &text_info);
+	}
+
+	return text_type;
+}
+
+/* Class initialization function for the text item */
+static void
+e_text_class_init (ETextClass *class)
+{
+	GtkObjectClass *object_class;
+	GnomeCanvasItemClass *item_class;
+
+	object_class = (GtkObjectClass *) class;
+	item_class = (GnomeCanvasItemClass *) class;
+
+	parent_class = gtk_type_class (gnome_canvas_item_get_type ());
+
+	gtk_object_add_arg_type ("EText::text",
+				 GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_TEXT);
+	gtk_object_add_arg_type ("EText::x",
+				 GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_X);
+	gtk_object_add_arg_type ("EText::y",
+				 GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_Y);
+	gtk_object_add_arg_type ("EText::font",
+				 GTK_TYPE_STRING, GTK_ARG_WRITABLE, ARG_FONT);
+	gtk_object_add_arg_type ("EText::fontset",
+				 GTK_TYPE_STRING, GTK_ARG_WRITABLE, ARG_FONTSET);
+	gtk_object_add_arg_type ("EText::font_gdk",
+				 GTK_TYPE_GDK_FONT, GTK_ARG_READWRITE, ARG_FONT_GDK);
+	gtk_object_add_arg_type ("EText::anchor",
+				 GTK_TYPE_ANCHOR_TYPE, GTK_ARG_READWRITE, ARG_ANCHOR);
+	gtk_object_add_arg_type ("EText::justification",
+				 GTK_TYPE_JUSTIFICATION, GTK_ARG_READWRITE, ARG_JUSTIFICATION);
+	gtk_object_add_arg_type ("EText::clip_width",
+				 GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_CLIP_WIDTH);
+	gtk_object_add_arg_type ("EText::clip_height",
+				 GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_CLIP_HEIGHT);
+	gtk_object_add_arg_type ("EText::clip",
+				 GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_CLIP);
+	gtk_object_add_arg_type ("EText::x_offset",
+				 GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_X_OFFSET);
+	gtk_object_add_arg_type ("EText::y_offset",
+				 GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_Y_OFFSET);
+	gtk_object_add_arg_type ("EText::fill_color",
+				 GTK_TYPE_STRING, GTK_ARG_WRITABLE, ARG_FILL_COLOR);
+	gtk_object_add_arg_type ("EText::fill_color_gdk",
+				 GTK_TYPE_GDK_COLOR, GTK_ARG_READWRITE, ARG_FILL_COLOR_GDK);
+	gtk_object_add_arg_type ("EText::fill_color_rgba",
+				 GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_FILL_COLOR_RGBA);
+	gtk_object_add_arg_type ("EText::fill_stipple",
+				 GTK_TYPE_GDK_WINDOW, GTK_ARG_READWRITE, ARG_FILL_STIPPLE);
+	gtk_object_add_arg_type ("EText::text_width",
+				 GTK_TYPE_DOUBLE, GTK_ARG_READABLE, ARG_TEXT_WIDTH);
+	gtk_object_add_arg_type ("EText::text_height",
+				 GTK_TYPE_DOUBLE, GTK_ARG_READABLE, ARG_TEXT_HEIGHT);
+	gtk_object_add_arg_type ("EText::use_ellipsis",
+				 GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_USE_ELLIPSIS);
+	gtk_object_add_arg_type ("EText::ellipsis",
+				 GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_ELLIPSIS);
+
+	object_class->destroy = e_text_destroy;
+	object_class->set_arg = e_text_set_arg;
+	object_class->get_arg = e_text_get_arg;
+
+	item_class->update = e_text_update;
+	item_class->realize = e_text_realize;
+	item_class->unrealize = e_text_unrealize;
+	item_class->draw = e_text_draw;
+	item_class->point = e_text_point;
+	item_class->bounds = e_text_bounds;
+	item_class->render = e_text_render;
+}
+
+/* Object initialization function for the text item */
+static void
+e_text_init (EText *text)
+{
+	text->x = 0.0;
+	text->y = 0.0;
+	text->anchor = GTK_ANCHOR_CENTER;
+	text->justification = GTK_JUSTIFY_LEFT;
+	text->clip_width = 0.0;
+	text->clip_height = 0.0;
+	text->xofs = 0.0;
+	text->yofs = 0.0;
+	text->ellipsis = NULL;
+	text->use_ellipsis = FALSE;
+	text->ellipsis_width = 0;
+}
+
+/* Destroy handler for the text item */
+static void
+e_text_destroy (GtkObject *object)
+{
+	EText *text;
+
+	g_return_if_fail (object != NULL);
+	g_return_if_fail (GNOME_IS_CANVAS_TEXT (object));
+
+	text = E_TEXT (object);
+
+	if (text->text)
+		g_free (text->text);
+
+	if (text->lines)
+		g_free (text->lines);
+
+	if (text->font)
+		gdk_font_unref (text->font);
+
+	if (text->suckfont)
+		e_suck_font_free (text->suckfont);
+
+	if (text->stipple)
+		gdk_bitmap_unref (text->stipple);
+
+	if (GTK_OBJECT_CLASS (parent_class)->destroy)
+		(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+}
+
+static void
+get_bounds_item_relative (EText *text, double *px1, double *py1, double *px2, double *py2)
+{
+	GnomeCanvasItem *item;
+	double x, y;
+	double clip_x, clip_y;
+
+	item = GNOME_CANVAS_ITEM (text);
+
+	x = text->x;
+	y = text->y;
+
+	clip_x = x;
+	clip_y = y;
+
+	/* Calculate text dimensions */
+
+	if (text->text && text->font)
+		text->height = (text->font->ascent + text->font->descent) * text->num_lines;
+	else
+		text->height = 0;
+
+	/* Anchor text */
+
+	switch (text->anchor) {
+	case GTK_ANCHOR_NW:
+	case GTK_ANCHOR_W:
+	case GTK_ANCHOR_SW:
+		break;
+
+	case GTK_ANCHOR_N:
+	case GTK_ANCHOR_CENTER:
+	case GTK_ANCHOR_S:
+		x -= text->max_width / 2;
+		clip_x -= text->clip_width / 2;
+		break;
+
+	case GTK_ANCHOR_NE:
+	case GTK_ANCHOR_E:
+	case GTK_ANCHOR_SE:
+		x -= text->max_width;
+		clip_x -= text->clip_width;
+		break;
+	}
+
+	switch (text->anchor) {
+	case GTK_ANCHOR_NW:
+	case GTK_ANCHOR_N:
+	case GTK_ANCHOR_NE:
+		break;
+
+	case GTK_ANCHOR_W:
+	case GTK_ANCHOR_CENTER:
+	case GTK_ANCHOR_E:
+		y -= text->height / 2;
+		clip_y -= text->clip_height / 2;
+		break;
+
+	case GTK_ANCHOR_SW:
+	case GTK_ANCHOR_S:
+	case GTK_ANCHOR_SE:
+		y -= text->height;
+		clip_y -= text->clip_height;
+		break;
+	}
+
+	/* Bounds */
+
+	if (text->clip) {
+		/* maybe do bbox intersection here? */
+		*px1 = clip_x;
+		*py1 = clip_y;
+		*px2 = clip_x + text->clip_width;
+		*py2 = clip_y + text->clip_height;
+	} else {
+		*px1 = x;
+		*py1 = y;
+		*px2 = x + text->max_width;
+		*py2 = y + text->height;
+	}
+}
+
+static void
+get_bounds (EText *text, double *px1, double *py1, double *px2, double *py2)
+{
+	GnomeCanvasItem *item;
+	double wx, wy;
+
+	item = GNOME_CANVAS_ITEM (text);
+
+	/* Get canvas pixel coordinates for text position */
+
+	wx = text->x;
+	wy = text->y;
+	gnome_canvas_item_i2w (item, &wx, &wy);
+	gnome_canvas_w2c (item->canvas, wx + text->xofs, wy + text->yofs, &text->cx, &text->cy);
+
+	/* Get canvas pixel coordinates for clip rectangle position */
+
+	gnome_canvas_w2c (item->canvas, wx, wy, &text->clip_cx, &text->clip_cy);
+	text->clip_cwidth = text->clip_width * item->canvas->pixels_per_unit;
+	text->clip_cheight = text->clip_height * item->canvas->pixels_per_unit;
+
+	/* Calculate text dimensions */
+
+	if (text->text && text->font)
+		text->height = (text->font->ascent + text->font->descent) * text->num_lines;
+	else
+		text->height = 0;
+
+	/* Anchor text */
+
+	switch (text->anchor) {
+	case GTK_ANCHOR_NW:
+	case GTK_ANCHOR_W:
+	case GTK_ANCHOR_SW:
+		break;
+
+	case GTK_ANCHOR_N:
+	case GTK_ANCHOR_CENTER:
+	case GTK_ANCHOR_S:
+		text->cx -= text->max_width / 2;
+		text->clip_cx -= text->clip_cwidth / 2;
+		break;
+
+	case GTK_ANCHOR_NE:
+	case GTK_ANCHOR_E:
+	case GTK_ANCHOR_SE:
+		text->cx -= text->max_width;
+		text->clip_cx -= text->clip_cwidth;
+		break;
+	}
+
+	switch (text->anchor) {
+	case GTK_ANCHOR_NW:
+	case GTK_ANCHOR_N:
+	case GTK_ANCHOR_NE:
+		break;
+
+	case GTK_ANCHOR_W:
+	case GTK_ANCHOR_CENTER:
+	case GTK_ANCHOR_E:
+		text->cy -= text->height / 2;
+		text->clip_cy -= text->clip_cheight / 2;
+		break;
+
+	case GTK_ANCHOR_SW:
+	case GTK_ANCHOR_S:
+	case GTK_ANCHOR_SE:
+		text->cy -= text->height;
+		text->clip_cy -= text->clip_cheight;
+		break;
+	}
+
+	/* Bounds */
+
+	if (text->clip) {
+		*px1 = text->clip_cx;
+		*py1 = text->clip_cy;
+		*px2 = text->clip_cx + text->clip_cwidth;
+		*py2 = text->clip_cy + text->clip_cheight;
+	} else {
+		*px1 = text->cx;
+		*py1 = text->cy;
+		*px2 = text->cx + text->max_width;
+		*py2 = text->cy + text->height;
+	}
+}
+
+/* Recalculates the bounding box of the text item.  The bounding box is defined
+ * by the text's extents if the clip rectangle is disabled.  If it is enabled,
+ * the bounding box is defined by the clip rectangle itself.
+ */
+static void
+recalc_bounds (EText *text)
+{
+	GnomeCanvasItem *item;
+
+	item = GNOME_CANVAS_ITEM (text);
+
+	get_bounds (text, &item->x1, &item->y1, &item->x2, &item->y2);
+
+	gnome_canvas_group_child_bounds (GNOME_CANVAS_GROUP (item->parent), item);
+}
+
+static void
+calc_ellipsis (EText *text)
+{
+	if (text->font)
+		text->ellipsis_width = 
+			gdk_text_width (text->font,
+					text->ellipsis ? text->ellipsis : "...",
+					text->ellipsis ? strlen (text->ellipsis) : 3);
+}
+
+/* Calculates the line widths (in pixels) of the text's splitted lines */
+static void
+calc_line_widths (EText *text)
+{
+	struct line *lines;
+	int i;
+	int j;
+
+	lines = text->lines;
+	text->max_width = 0;
+
+	if (!lines)
+		return;
+
+	for (i = 0; i < text->num_lines; i++) {
+		if (lines->length != 0) {
+			if (text->font) {
+				lines->width = gdk_text_width (text->font,
+							       lines->text, lines->length);
+				lines->ellipsis_length = 0;
+			} else {
+				lines->width = 0;
+			}
+			
+			if (text->clip && 
+			    text->use_ellipsis && 
+			    lines->width > text->clip_width) {
+				if (text->font) {
+					lines->ellipsis_length = 0;
+					for (j = 0; j < lines->length; j++ ) {
+						if (gdk_text_width (text->font, lines->text, j) + text->ellipsis_width <= text->clip_width)
+							lines->ellipsis_length = j;
+						else
+							break;
+					}
+				}
+				else
+					lines->ellipsis_length = 0;
+				lines->width = gdk_text_width (text->font, lines->text, lines->ellipsis_length) +
+					text->ellipsis_width;
+			}
+			else
+				lines->ellipsis_length = lines->length;
+
+			if (lines->width > text->max_width)
+				text->max_width = lines->width;
+		}
+
+		lines++;
+	}
+}
+
+/* Splits the text of the text item into lines */
+static void
+split_into_lines (EText *text)
+{
+	char *p;
+	struct line *lines;
+	int len;
+
+	/* Free old array of lines */
+
+	if (text->lines)
+		g_free (text->lines);
+
+	text->lines = NULL;
+	text->num_lines = 0;
+
+	if (!text->text)
+		return;
+
+	/* First, count the number of lines */
+
+	for (p = text->text; *p; p++)
+		if (*p == '\n')
+			text->num_lines++;
+
+	text->num_lines++;
+
+	/* Allocate array of lines and calculate split positions */
+
+	text->lines = lines = g_new0 (struct line, text->num_lines);
+	len = 0;
+
+	for (p = text->text; *p; p++) {
+		if (*p == '\n') {
+			lines->length = len;
+			lines++;
+			len = 0;
+		} else if (len == 0) {
+			len++;
+			lines->text = p;
+		} else
+			len++;
+	}
+
+	lines->length = len;
+
+	calc_line_widths (text);
+}
+
+/* Convenience function to set the text's GC's foreground color */
+static void
+set_text_gc_foreground (EText *text)
+{
+	GdkColor c;
+
+	if (!text->gc)
+		return;
+
+	c.pixel = text->pixel;
+	gdk_gc_set_foreground (text->gc, &c);
+}
+
+/* Sets the stipple pattern for the text */
+static void
+set_stipple (EText *text, GdkBitmap *stipple, int reconfigure)
+{
+	if (text->stipple && !reconfigure)
+		gdk_bitmap_unref (text->stipple);
+
+	text->stipple = stipple;
+	if (stipple && !reconfigure)
+		gdk_bitmap_ref (stipple);
+
+	if (text->gc) {
+		if (stipple) {
+			gdk_gc_set_stipple (text->gc, stipple);
+			gdk_gc_set_fill (text->gc, GDK_STIPPLED);
+		} else
+			gdk_gc_set_fill (text->gc, GDK_SOLID);
+	}
+}
+
+/* Set_arg handler for the text item */
+static void
+e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
+{
+	GnomeCanvasItem *item;
+	EText *text;
+	GdkColor color = { 0, 0, 0, 0, };
+	GdkColor *pcolor;
+	gboolean color_changed;
+	int have_pixel;
+
+	item = GNOME_CANVAS_ITEM (object);
+	text = E_TEXT (object);
+
+	color_changed = FALSE;
+	have_pixel = FALSE;
+
+	switch (arg_id) {
+	case ARG_TEXT:
+		if (text->text)
+			g_free (text->text);
+
+		text->text = g_strdup (GTK_VALUE_STRING (*arg));
+		split_into_lines (text);
+		recalc_bounds (text);
+		break;
+
+	case ARG_X:
+		text->x = GTK_VALUE_DOUBLE (*arg);
+		recalc_bounds (text);
+		break;
+
+	case ARG_Y:
+		text->y = GTK_VALUE_DOUBLE (*arg);
+		recalc_bounds (text);
+		break;
+
+	case ARG_FONT:
+		if (text->font)
+			gdk_font_unref (text->font);
+
+		text->font = gdk_font_load (GTK_VALUE_STRING (*arg));
+
+		if (item->canvas->aa) {
+			if (text->suckfont)
+				e_suck_font_free (text->suckfont);
+
+			text->suckfont = e_suck_font (text->font);
+		}
+		
+		calc_ellipsis (text);
+		calc_line_widths (text);
+		recalc_bounds (text);
+		break;
+
+	case ARG_FONTSET:
+		if (text->font)
+			gdk_font_unref (text->font);
+
+		text->font = gdk_fontset_load (GTK_VALUE_STRING (*arg));
+
+		if (item->canvas->aa) {
+			if (text->suckfont)
+				e_suck_font_free (text->suckfont);
+
+			text->suckfont = e_suck_font (text->font);
+		}
+
+		calc_ellipsis (text);
+		calc_line_widths (text);
+		recalc_bounds (text);
+		break;
+
+	case ARG_FONT_GDK:
+		if (text->font)
+			gdk_font_unref (text->font);
+
+		text->font = GTK_VALUE_BOXED (*arg);
+		gdk_font_ref (text->font);
+
+		if (item->canvas->aa) {
+			if (text->suckfont)
+				e_suck_font_free (text->suckfont);
+
+			text->suckfont = e_suck_font (text->font);
+		}
+		calc_ellipsis (text);
+		calc_line_widths (text);
+		recalc_bounds (text);
+		break;
+
+	case ARG_ANCHOR:
+		text->anchor = GTK_VALUE_ENUM (*arg);
+		recalc_bounds (text);
+		break;
+
+	case ARG_JUSTIFICATION:
+		text->justification = GTK_VALUE_ENUM (*arg);
+		break;
+
+	case ARG_CLIP_WIDTH:
+		text->clip_width = fabs (GTK_VALUE_DOUBLE (*arg));
+		calc_ellipsis (text);
+		calc_line_widths (text);
+		recalc_bounds (text);
+		break;
+
+	case ARG_CLIP_HEIGHT:
+		text->clip_height = fabs (GTK_VALUE_DOUBLE (*arg));
+		recalc_bounds (text);
+		break;
+
+	case ARG_CLIP:
+		text->clip = GTK_VALUE_BOOL (*arg);
+		calc_ellipsis (text);
+		calc_line_widths (text);
+		recalc_bounds (text);
+		break;
+
+	case ARG_X_OFFSET:
+		text->xofs = GTK_VALUE_DOUBLE (*arg);
+		recalc_bounds (text);
+		break;
+
+	case ARG_Y_OFFSET:
+		text->yofs = GTK_VALUE_DOUBLE (*arg);
+		recalc_bounds (text);
+		break;
+
+        case ARG_FILL_COLOR:
+		if (GTK_VALUE_STRING (*arg))
+			gdk_color_parse (GTK_VALUE_STRING (*arg), &color);
+
+		text->rgba = ((color.red & 0xff00) << 16 |
+			      (color.green & 0xff00) << 8 |
+			      (color.blue & 0xff00) |
+			      0xff);
+		color_changed = TRUE;
+		break;
+
+	case ARG_FILL_COLOR_GDK:
+		pcolor = GTK_VALUE_BOXED (*arg);
+		if (pcolor) {
+			color = *pcolor;
+			gdk_color_context_query_color (item->canvas->cc, &color);
+			have_pixel = TRUE;
+		}
+
+		text->rgba = ((color.red & 0xff00) << 16 |
+			      (color.green & 0xff00) << 8 |
+			      (color.blue & 0xff00) |
+			      0xff);
+		color_changed = TRUE;
+		break;
+
+        case ARG_FILL_COLOR_RGBA:
+		text->rgba = GTK_VALUE_UINT (*arg);
+		color_changed = TRUE;
+		break;
+
+	case ARG_FILL_STIPPLE:
+		set_stipple (text, GTK_VALUE_BOXED (*arg), FALSE);
+		break;
+
+	case ARG_USE_ELLIPSIS:
+		text->use_ellipsis = GTK_VALUE_BOOL (*arg);
+		calc_line_widths (text);
+		recalc_bounds (text);
+		break;
+
+	case ARG_ELLIPSIS:
+		if (text->ellipsis)
+			g_free (text->ellipsis);
+
+		text->ellipsis = g_strdup (GTK_VALUE_STRING (*arg));
+		calc_ellipsis (text);
+		calc_line_widths (text);
+		recalc_bounds (text);
+		break;
+
+	default:
+		break;
+	}
+
+	if (color_changed) {
+		if (have_pixel)
+			text->pixel = color.pixel;
+		else
+			text->pixel = gnome_canvas_get_color_pixel (item->canvas, text->rgba);
+
+		if (!item->canvas->aa)
+			set_text_gc_foreground (text);
+
+		gnome_canvas_item_request_update (item);
+	}
+}
+
+/* Get_arg handler for the text item */
+static void
+e_text_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
+{
+	EText *text;
+	GdkColor *color;
+
+	text = E_TEXT (object);
+
+	switch (arg_id) {
+	case ARG_TEXT:
+		GTK_VALUE_STRING (*arg) = g_strdup (text->text);
+		break;
+
+	case ARG_X:
+		GTK_VALUE_DOUBLE (*arg) = text->x;
+		break;
+
+	case ARG_Y:
+		GTK_VALUE_DOUBLE (*arg) = text->y;
+		break;
+
+	case ARG_FONT_GDK:
+		GTK_VALUE_BOXED (*arg) = text->font;
+		break;
+
+	case ARG_ANCHOR:
+		GTK_VALUE_ENUM (*arg) = text->anchor;
+		break;
+
+	case ARG_JUSTIFICATION:
+		GTK_VALUE_ENUM (*arg) = text->justification;
+		break;
+
+	case ARG_CLIP_WIDTH:
+		GTK_VALUE_DOUBLE (*arg) = text->clip_width;
+		break;
+
+	case ARG_CLIP_HEIGHT:
+		GTK_VALUE_DOUBLE (*arg) = text->clip_height;
+		break;
+
+	case ARG_CLIP:
+		GTK_VALUE_BOOL (*arg) = text->clip;
+		break;
+
+	case ARG_X_OFFSET:
+		GTK_VALUE_DOUBLE (*arg) = text->xofs;
+		break;
+
+	case ARG_Y_OFFSET:
+		GTK_VALUE_DOUBLE (*arg) = text->yofs;
+		break;
+
+	case ARG_FILL_COLOR_GDK:
+		color = g_new (GdkColor, 1);
+		color->pixel = text->pixel;
+		gdk_color_context_query_color (text->item.canvas->cc, color);
+		GTK_VALUE_BOXED (*arg) = color;
+		break;
+
+	case ARG_FILL_COLOR_RGBA:
+		GTK_VALUE_UINT (*arg) = text->rgba;
+		break;
+
+	case ARG_FILL_STIPPLE:
+		GTK_VALUE_BOXED (*arg) = text->stipple;
+		break;
+
+	case ARG_TEXT_WIDTH:
+		GTK_VALUE_DOUBLE (*arg) = text->max_width / text->item.canvas->pixels_per_unit;
+		break;
+
+	case ARG_TEXT_HEIGHT:
+		GTK_VALUE_DOUBLE (*arg) = text->height / text->item.canvas->pixels_per_unit;
+		break;
+
+	case ARG_USE_ELLIPSIS:
+		GTK_VALUE_BOOL (*arg) = text->use_ellipsis;
+		break;
+
+	case ARG_ELLIPSIS:
+		GTK_VALUE_STRING (*arg) = g_strdup (text->ellipsis);
+		break;
+
+	default:
+		arg->type = GTK_TYPE_INVALID;
+		break;
+	}
+}
+
+/* Update handler for the text item */
+static void
+e_text_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
+{
+	EText *text;
+	double x1, y1, x2, y2;
+	ArtDRect i_bbox, c_bbox;
+	int i;
+
+	text = E_TEXT (item);
+
+	if (parent_class->update)
+		(* parent_class->update) (item, affine, clip_path, flags);
+
+	if (!item->canvas->aa) {
+		set_text_gc_foreground (text);
+		set_stipple (text, text->stipple, TRUE);
+		get_bounds (text, &x1, &y1, &x2, &y2);
+
+		gnome_canvas_update_bbox (item, x1, y1, x2, y2);
+	} else {
+		/* aa rendering */
+		for (i = 0; i < 6; i++)
+			text->affine[i] = affine[i];
+		get_bounds_item_relative (text, &i_bbox.x0, &i_bbox.y0, &i_bbox.x1, &i_bbox.y1);
+		art_drect_affine_transform (&c_bbox, &i_bbox, affine);
+		gnome_canvas_update_bbox (item, c_bbox.x0, c_bbox.y0, c_bbox.x1, c_bbox.y1);
+
+	}
+}
+
+/* Realize handler for the text item */
+static void
+e_text_realize (GnomeCanvasItem *item)
+{
+	EText *text;
+
+	text = E_TEXT (item);
+
+	if (parent_class->realize)
+		(* parent_class->realize) (item);
+
+	text->gc = gdk_gc_new (item->canvas->layout.bin_window);
+}
+
+/* Unrealize handler for the text item */
+static void
+e_text_unrealize (GnomeCanvasItem *item)
+{
+	EText *text;
+
+	text = E_TEXT (item);
+
+	gdk_gc_unref (text->gc);
+	text->gc = NULL;
+
+	if (parent_class->unrealize)
+		(* parent_class->unrealize) (item);
+}
+
+/* Calculates the x position of the specified line of text, based on the text's justification */
+static double
+get_line_xpos_item_relative (EText *text, struct line *line)
+{
+	double x;
+
+	x = text->x;
+
+	switch (text->anchor) {
+	case GTK_ANCHOR_NW:
+	case GTK_ANCHOR_W:
+	case GTK_ANCHOR_SW:
+		break;
+
+	case GTK_ANCHOR_N:
+	case GTK_ANCHOR_CENTER:
+	case GTK_ANCHOR_S:
+		x -= text->max_width / 2;
+		break;
+
+	case GTK_ANCHOR_NE:
+	case GTK_ANCHOR_E:
+	case GTK_ANCHOR_SE:
+		x -= text->max_width;
+		break;
+	}
+
+	switch (text->justification) {
+	case GTK_JUSTIFY_RIGHT:
+		x += text->max_width - line->width;
+		break;
+
+	case GTK_JUSTIFY_CENTER:
+		x += (text->max_width - line->width) * 0.5;
+		break;
+
+	default:
+		/* For GTK_JUSTIFY_LEFT, we don't have to do anything.  We do not support
+		 * GTK_JUSTIFY_FILL, yet.
+		 */
+		break;
+	}
+
+	return x;
+}
+
+/* Calculates the y position of the first line of text. */
+static double
+get_line_ypos_item_relative (EText *text)
+{
+	double y;
+
+	y = text->y;
+
+	switch (text->anchor) {
+	case GTK_ANCHOR_NW:
+	case GTK_ANCHOR_N:
+	case GTK_ANCHOR_NE:
+		break;
+
+	case GTK_ANCHOR_W:
+	case GTK_ANCHOR_CENTER:
+	case GTK_ANCHOR_E:
+		y -= text->height / 2;
+		break;
+
+	case GTK_ANCHOR_SW:
+	case GTK_ANCHOR_S:
+	case GTK_ANCHOR_SE:
+		y -= text->height;
+		break;
+	}
+
+	return y;
+}
+
+/* Calculates the x position of the specified line of text, based on the text's justification */
+static int
+get_line_xpos (EText *text, struct line *line)
+{
+	int x;
+
+	x = text->cx;
+
+	switch (text->justification) {
+	case GTK_JUSTIFY_RIGHT:
+		x += text->max_width - line->width;
+		break;
+
+	case GTK_JUSTIFY_CENTER:
+		x += (text->max_width - line->width) / 2;
+		break;
+
+	default:
+		/* For GTK_JUSTIFY_LEFT, we don't have to do anything.  We do not support
+		 * GTK_JUSTIFY_FILL, yet.
+		 */
+		break;
+	}
+
+	return x;
+}
+
+/* Draw handler for the text item */
+static void
+e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
+			int x, int y, int width, int height)
+{
+	EText *text;
+	GdkRectangle rect;
+	struct line *lines;
+	int i;
+	int xpos, ypos;
+
+	text = E_TEXT (item);
+
+	if (!text->text || !text->font)
+		return;
+
+	if (text->clip) {
+		rect.x = text->clip_cx - x;
+		rect.y = text->clip_cy - y;
+		rect.width = text->clip_cwidth;
+		rect.height = text->clip_cheight;
+		
+		gdk_gc_set_clip_rectangle (text->gc, &rect);
+	}
+	lines = text->lines;
+	ypos = text->cy + text->font->ascent;
+
+	if (text->stipple)
+		gnome_canvas_set_stipple_origin (item->canvas, text->gc);
+
+	for (i = 0; i < text->num_lines; i++) {
+		if (lines->length != 0) {
+			xpos = get_line_xpos (text, lines);
+			if ( text->clip && text->use_ellipsis && lines->ellipsis_length < lines->length) {
+				gdk_draw_text (drawable,
+					       text->font,
+					       text->gc,
+					       xpos - x,
+					       ypos - y,
+					       lines->text,
+					       lines->ellipsis_length);
+				gdk_draw_text (drawable,
+					       text->font,
+					       text->gc,
+					       xpos - x + 
+					       lines->width - text->ellipsis_width,
+					       ypos - y,
+					       text->ellipsis ? text->ellipsis : "...",
+					       text->ellipsis ? strlen (text->ellipsis) : 3);
+			} else
+				
+				gdk_draw_text (drawable,
+					       text->font,
+					       text->gc,
+					       xpos - x,
+					       ypos - y,
+					       lines->text,
+					       lines->length);
+		}
+
+		ypos += text->font->ascent + text->font->descent;
+		lines++;
+	}
+
+	if (text->clip)
+		gdk_gc_set_clip_rectangle (text->gc, NULL);
+}
+
+/* Render handler for the text item */
+static void
+e_text_render (GnomeCanvasItem *item, GnomeCanvasBuf *buf)
+{
+	EText *text;
+	guint32 fg_color;
+	double xpos, ypos;
+	struct line *lines;
+	int i, j;
+	double affine[6];
+	ETextSuckFont *suckfont;
+	int dx, dy;
+	ArtPoint start_i, start_c;
+
+	text = E_TEXT (item);
+
+	if (!text->text || !text->font || !text->suckfont)
+		return;
+
+	suckfont = text->suckfont;
+
+	fg_color = text->rgba;
+
+        gnome_canvas_buf_ensure_buf (buf);
+
+	lines = text->lines;
+	start_i.y = get_line_ypos_item_relative (text);
+
+	art_affine_scale (affine, item->canvas->pixels_per_unit, item->canvas->pixels_per_unit);
+	for (i = 0; i < 6; i++)
+		affine[i] = text->affine[i];
+
+	for (i = 0; i < text->num_lines; i++) {
+		if (lines->length != 0) {
+			start_i.x = get_line_xpos_item_relative (text, lines);
+			art_affine_point (&start_c, &start_i, text->affine);
+			xpos = start_c.x;
+			ypos = start_c.y;
+
+			for (j = 0; j < lines->length; j++) {
+				ETextSuckChar *ch;
+
+				ch = &suckfont->chars[(unsigned char)((lines->text)[j])];
+
+				affine[4] = xpos;
+				affine[5] = ypos;
+				art_rgb_bitmap_affine (
+					buf->buf,
+					buf->rect.x0, buf->rect.y0, buf->rect.x1, buf->rect.y1,
+					buf->buf_rowstride,
+					suckfont->bitmap + (ch->bitmap_offset >> 3),
+					ch->width,
+					suckfont->bitmap_height,
+					suckfont->bitmap_width >> 3,
+					fg_color,
+					affine,
+					ART_FILTER_NEAREST, NULL);
+
+				dx = ch->left_sb + ch->width + ch->right_sb;
+				xpos += dx * affine[0];
+				ypos += dx * affine[1];
+			}
+		}
+
+		dy = text->font->ascent + text->font->descent;
+		start_i.y += dy;
+		lines++;
+	}
+
+	buf->is_bg = 0;
+}
+
+/* Point handler for the text item */
+static double
+e_text_point (GnomeCanvasItem *item, double x, double y,
+			 int cx, int cy, GnomeCanvasItem **actual_item)
+{
+	EText *text;
+	int i;
+	struct line *lines;
+	int x1, y1, x2, y2;
+	int font_height;
+	int dx, dy;
+	double dist, best;
+
+	text = E_TEXT (item);
+
+	*actual_item = item;
+
+	/* The idea is to build bounding rectangles for each of the lines of
+	 * text (clipped by the clipping rectangle, if it is activated) and see
+	 * whether the point is inside any of these.  If it is, we are done.
+	 * Otherwise, calculate the distance to the nearest rectangle.
+	 */
+
+	if (text->font)
+		font_height = text->font->ascent + text->font->descent;
+	else
+		font_height = 0;
+
+	best = 1.0e36;
+
+	lines = text->lines;
+
+	for (i = 0; i < text->num_lines; i++) {
+		/* Compute the coordinates of rectangle for the current line,
+		 * clipping if appropriate.
+		 */
+
+		x1 = get_line_xpos (text, lines);
+		y1 = text->cy + i * font_height;
+		x2 = x1 + lines->width;
+		y2 = y1 + font_height;
+
+		if (text->clip) {
+			if (x1 < text->clip_cx)
+				x1 = text->clip_cx;
+
+			if (y1 < text->clip_cy)
+				y1 = text->clip_cy;
+
+			if (x2 > (text->clip_cx + text->clip_width))
+				x2 = text->clip_cx + text->clip_width;
+
+			if (y2 > (text->clip_cy + text->clip_height))
+				y2 = text->clip_cy + text->clip_height;
+
+			if ((x1 >= x2) || (y1 >= y2))
+				continue;
+		}
+
+		/* Calculate distance from point to rectangle */
+
+		if (cx < x1)
+			dx = x1 - cx;
+		else if (cx >= x2)
+			dx = cx - x2 + 1;
+		else
+			dx = 0;
+
+		if (cy < y1)
+			dy = y1 - cy;
+		else if (cy >= y2)
+			dy = cy - y2 + 1;
+		else
+			dy = 0;
+
+		if ((dx == 0) && (dy == 0))
+			return 0.0;
+
+		dist = sqrt (dx * dx + dy * dy);
+		if (dist < best)
+			best = dist;
+
+		/* Next! */
+
+		lines++;
+	}
+
+	return best / item->canvas->pixels_per_unit;
+}
+
+/* Bounds handler for the text item */
+static void
+e_text_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2)
+{
+	EText *text;
+	double width, height;
+
+	text = E_TEXT (item);
+
+	*x1 = text->x;
+	*y1 = text->y;
+
+	if (text->clip) {
+		width = text->clip_width;
+		height = text->clip_height;
+	} else {
+		width = text->max_width / item->canvas->pixels_per_unit;
+		height = text->height / item->canvas->pixels_per_unit;
+	}
+
+	switch (text->anchor) {
+	case GTK_ANCHOR_NW:
+	case GTK_ANCHOR_W:
+	case GTK_ANCHOR_SW:
+		break;
+
+	case GTK_ANCHOR_N:
+	case GTK_ANCHOR_CENTER:
+	case GTK_ANCHOR_S:
+		*x1 -= width / 2.0;
+		break;
+
+	case GTK_ANCHOR_NE:
+	case GTK_ANCHOR_E:
+	case GTK_ANCHOR_SE:
+		*x1 -= width;
+		break;
+	}
+
+	switch (text->anchor) {
+	case GTK_ANCHOR_NW:
+	case GTK_ANCHOR_N:
+	case GTK_ANCHOR_NE:
+		break;
+
+	case GTK_ANCHOR_W:
+	case GTK_ANCHOR_CENTER:
+	case GTK_ANCHOR_E:
+		*y1 -= height / 2.0;
+		break;
+
+	case GTK_ANCHOR_SW:
+	case GTK_ANCHOR_S:
+	case GTK_ANCHOR_SE:
+		*y1 -= height;
+		break;
+	}
+
+	*x2 = *x1 + width;
+	*y2 = *y1 + height;
+}
+
+
+
+/* Routines for sucking fonts from the X server */
+
+static ETextSuckFont *
+e_suck_font (GdkFont *font)
+{
+	ETextSuckFont *suckfont;
+	int i;
+	int x, y;
+	char text[1];
+	int lbearing, rbearing, ch_width, ascent, descent;
+	GdkPixmap *pixmap;
+	GdkColor black, white;
+	GdkImage *image;
+	GdkGC *gc;
+	guchar *bitmap, *line;
+	int width, height;
+	int black_pixel, pixel;
+
+	if (!font)
+		return NULL;
+
+	suckfont = g_new (ETextSuckFont, 1);
+
+	height = font->ascent + font->descent;
+	x = 0;
+	for (i = 0; i < 256; i++) {
+		text[0] = i;
+		gdk_text_extents (font, text, 1,
+				  &lbearing, &rbearing, &ch_width, &ascent, &descent);
+		suckfont->chars[i].left_sb = lbearing;
+		suckfont->chars[i].right_sb = ch_width - rbearing;
+		suckfont->chars[i].width = rbearing - lbearing;
+		suckfont->chars[i].ascent = ascent;
+		suckfont->chars[i].descent = descent;
+		suckfont->chars[i].bitmap_offset = x;
+		x += (ch_width + 31) & -32;
+	}
+
+	width = x;
+
+	suckfont->bitmap_width = width;
+	suckfont->bitmap_height = height;
+	suckfont->ascent = font->ascent;
+
+	pixmap = gdk_pixmap_new (NULL, suckfont->bitmap_width,
+				 suckfont->bitmap_height, 1);
+	gc = gdk_gc_new (pixmap);
+	gdk_gc_set_font (gc, font);
+
+	black_pixel = BlackPixel (gdk_display, DefaultScreen (gdk_display));
+	black.pixel = black_pixel;
+	white.pixel = WhitePixel (gdk_display, DefaultScreen (gdk_display));
+	gdk_gc_set_foreground (gc, &white);
+	gdk_draw_rectangle (pixmap, gc, 1, 0, 0, width, height);
+
+	gdk_gc_set_foreground (gc, &black);
+	for (i = 0; i < 256; i++) {
+		text[0] = i;
+		gdk_draw_text (pixmap, font, gc,
+			       suckfont->chars[i].bitmap_offset - suckfont->chars[i].left_sb,
+			       font->ascent,
+			       text, 1);
+	}
+
+	/* The handling of the image leaves me with distinct unease.  But this
+	 * is more or less copied out of gimp/app/text_tool.c, so it _ought_ to
+	 * work. -RLL
+	 */
+
+	image = gdk_image_get (pixmap, 0, 0, width, height);
+	suckfont->bitmap = g_malloc0 ((width >> 3) * height);
+
+	line = suckfont->bitmap;
+	for (y = 0; y < height; y++) {
+		for (x = 0; x < width; x++) {
+			pixel = gdk_image_get_pixel (image, x, y);
+			if (pixel == black_pixel)
+				line[x >> 3] |= 128 >> (x & 7);
+		}
+		line += width >> 3;
+	}
+
+	gdk_image_destroy (image);
+
+	/* free the pixmap */
+	gdk_pixmap_unref (pixmap);
+
+	/* free the gc */
+	gdk_gc_destroy (gc);
+
+	return suckfont;
+}
+
+static void
+e_suck_font_free (ETextSuckFont *suckfont)
+{
+	g_free (suckfont->bitmap);
+	g_free (suckfont);
+}