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-rw-r--r--widgets/table/e-table-header-utils.c451
1 files changed, 0 insertions, 451 deletions
diff --git a/widgets/table/e-table-header-utils.c b/widgets/table/e-table-header-utils.c
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index 0933359206..0000000000
--- a/widgets/table/e-table-header-utils.c
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@@ -1,451 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/* ETable widget - utilities for drawing table header buttons
- *
- * Copyright (C) 2000 Ximian, Inc.
- *
- * Authors: Chris Lahey <clahey@ximian.com>
- * Miguel de Icaza <miguel@ximian.com>
- * Federico Mena-Quintero <federico@ximian.com>
- *
- * 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <string.h> /* strlen() */
-#include <glib.h>
-#include "e-table-defines.h"
-#include "e-table-header-utils.h"
-
-
-
-/**
- * e_table_header_compute_height:
- * @ecol: Table column description.
- * @style: Style for the button's bevel.
- * @font: Font for the button's text, or NULL if no font is available.
- *
- * Computes the minimum height required for a table header button.
- *
- * Return value: The height of the button, in pixels.
- **/
-double
-e_table_header_compute_height (ETableCol *ecol, GtkStyle *style, GdkFont *font)
-{
- int ythick;
- int height;
-
- g_return_val_if_fail (ecol != NULL, -1);
- g_return_val_if_fail (E_IS_TABLE_COL (ecol), -1);
- g_return_val_if_fail (style != NULL, -1);
-
- ythick = style->klass->ythickness;
-
- if (font)
- height = font->ascent + font->descent;
- else
- height = 16; /* FIXME: default? */
-
- if (ecol->is_pixbuf) {
- g_assert (ecol->pixbuf != NULL);
- height = MAX (height, gdk_pixbuf_get_height (ecol->pixbuf));
- }
-
- height = MAX (height, MIN_ARROW_SIZE);
-
- height += 2 * (ythick + HEADER_PADDING);
-
- return height;
-}
-
-double
-e_table_header_width_extras (GtkStyle *style)
-{
- g_return_val_if_fail (style != NULL, -1);
-
- return 2 * (style->klass->xthickness + HEADER_PADDING);
-}
-
-/* Creates a pixmap that is a composite of a background color and the upper-left
- * corner rectangle of a pixbuf.
- */
-static GdkPixmap *
-make_composite_pixmap (GdkDrawable *drawable, GdkGC *gc,
- GdkPixbuf *pixbuf, GdkColor *bg, int width, int height,
- int dither_xofs, int dither_yofs)
-{
- int pwidth, pheight;
- GdkPixmap *pixmap;
- GdkPixbuf *tmp;
- int color;
-
- pwidth = gdk_pixbuf_get_width (pixbuf);
- pheight = gdk_pixbuf_get_height (pixbuf);
- g_assert (width <= pwidth && height <= pheight);
-
- color = ((bg->red & 0xff00) << 8) | (bg->green & 0xff00) | ((bg->blue & 0xff00) >> 8);
-
- if (width >= pwidth && height >= pheight) {
- tmp = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, width, height);
- if (!tmp)
- return NULL;
-
- gdk_pixbuf_composite_color (pixbuf, tmp,
- 0, 0,
- width, height,
- 0, 0,
- 1.0, 1.0,
- GDK_INTERP_NEAREST,
- 255,
- 0, 0,
- 16,
- color, color);
- } else {
- int x, y, rowstride;
- GdkPixbuf *fade;
- guchar *pixels;
-
- /* Do a nice fade of the pixbuf down and to the right */
-
- fade = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, width, height);
- if (!fade)
- return NULL;
-
- gdk_pixbuf_copy_area (pixbuf,
- 0, 0,
- width, height,
- fade,
- 0, 0);
-
- rowstride = gdk_pixbuf_get_rowstride (fade);
- pixels = gdk_pixbuf_get_pixels (fade);
-
- for (y = 0; y < height; y++) {
- guchar *p;
- int yfactor;
-
- p = pixels + y * rowstride;
-
- if (height < pheight)
- yfactor = height - y;
- else
- yfactor = height;
-
- for (x = 0; x < width; x++) {
- int xfactor;
-
- if (width < pwidth)
- xfactor = width - x;
- else
- xfactor = width;
-
- p[3] = ((int) p[3] * xfactor * yfactor / (width * height));
- p += 4;
- }
- }
-
- tmp = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, width, height);
- if (!tmp) {
- gdk_pixbuf_unref (fade);
- return NULL;
- }
-
- gdk_pixbuf_composite_color (fade, tmp,
- 0, 0,
- width, height,
- 0, 0,
- 1.0, 1.0,
- GDK_INTERP_NEAREST,
- 255,
- 0, 0,
- 16,
- color, color);
-
- gdk_pixbuf_unref (fade);
- }
-
- pixmap = gdk_pixmap_new (drawable, width, height, gdk_rgb_get_visual ()->depth);
- gdk_draw_rgb_image_dithalign (pixmap, gc,
- 0, 0,
- width, height,
- GDK_RGB_DITHER_NORMAL,
- gdk_pixbuf_get_pixels (tmp),
- gdk_pixbuf_get_rowstride (tmp),
- dither_xofs, dither_yofs);
- gdk_pixbuf_unref (tmp);
-
- return pixmap;
-}
-
-/**
- * e_table_header_draw_button:
- * @drawable: Destination drawable.
- * @ecol: Table column for the header information.
- * @style: Style to use for drawing the button.
- * @font: Font for the button's text.
- * @state: State of the table widget.
- * @widget: The table widget.
- * @gc: GC to use for drawing.
- * @x: Leftmost coordinate of the button.
- * @y: Topmost coordinate of the button.
- * @width: Width of the region to draw.
- * @height: Height of the region to draw.
- * @button_width: Width for the complete button.
- * @button_height: Height for the complete button.
- * @arrow: Arrow type to use as a sort indicator.
- *
- * Draws a button suitable for a table header.
- **/
-void
-e_table_header_draw_button (GdkDrawable *drawable, ETableCol *ecol,
- GtkStyle *style, GdkFont *font, GtkStateType state,
- GtkWidget *widget, GdkGC *gc,
- int x, int y, int width, int height,
- int button_width, int button_height,
- ETableColArrow arrow)
-{
- int xthick, ythick;
- int inner_x, inner_y;
- int inner_width, inner_height;
-
- g_return_if_fail (drawable != NULL);
- g_return_if_fail (ecol != NULL);
- g_return_if_fail (E_IS_TABLE_COL (ecol));
- g_return_if_fail (style != NULL);
- g_return_if_fail (font != NULL);
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_WIDGET (widget));
- g_return_if_fail (button_width > 0 && button_height > 0);
-
- xthick = style->klass->xthickness;
- ythick = style->klass->ythickness;
-
- /* Button bevel */
-
- gtk_paint_box (style, drawable, state, GTK_SHADOW_OUT,
- NULL, widget, "button",
- x, y, button_width, button_height);
-
- /* Inside area */
-
- inner_width = button_width - 2 * (xthick + HEADER_PADDING);
- inner_height = button_height - 2 * (ythick + HEADER_PADDING);
-
- if (inner_width < 1 || inner_height < 1)
- return; /* nothing fits */
-
- inner_x = x + xthick + HEADER_PADDING;
- inner_y = y + ythick + HEADER_PADDING;
-
- /* Arrow */
-
- switch (arrow) {
- case E_TABLE_COL_ARROW_NONE:
- break;
-
- case E_TABLE_COL_ARROW_UP:
- case E_TABLE_COL_ARROW_DOWN: {
- int arrow_width, arrow_height;
-
- arrow_width = MIN (MIN_ARROW_SIZE, inner_width);
- arrow_height = MIN (MIN_ARROW_SIZE, inner_height);
-
- gtk_paint_arrow (style, drawable, state,
- GTK_SHADOW_IN, NULL, widget, "header",
- (arrow == E_TABLE_COL_ARROW_UP) ? GTK_ARROW_UP : GTK_ARROW_DOWN,
- TRUE,
- inner_x + inner_width - arrow_width,
- inner_y + (inner_height - arrow_height) / 2,
- arrow_width, arrow_height);
-
- inner_width -= arrow_width + HEADER_PADDING;
- break;
- }
-
- default:
- g_assert_not_reached ();
- return;
- }
-
- if (inner_width < 1)
- return; /* nothing else fits */
-
- /* Pixbuf or label */
-
- if (ecol->is_pixbuf) {
- int pwidth, pheight;
- int clip_width, clip_height;
- int xpos;
- GdkPixmap *pixmap;
-
- g_assert (ecol->pixbuf != NULL);
-
- pwidth = gdk_pixbuf_get_width (ecol->pixbuf);
- pheight = gdk_pixbuf_get_height (ecol->pixbuf);
-
- clip_width = MIN (pwidth, inner_width);
- clip_height = MIN (pheight, inner_height);
-
- xpos = inner_x;
-
- if (inner_width - pwidth > 11) {
- int rbearing;
- int width;
- int ypos;
-
- gdk_string_extents (font, ecol->text, NULL, &rbearing, &width, NULL, NULL);
- if (rbearing < inner_width - (pwidth + 1)) {
- xpos = inner_x + (inner_width - width - (pwidth + 1)) / 2;
- }
-
- ypos = inner_y + (inner_height - font->ascent - font->descent) / 2 + font->ascent;
-
- e_table_draw_elided_string (drawable, font, gc,
- xpos + pwidth + 1, ypos,
- ecol->text, inner_width - (xpos - inner_x), FALSE);
- }
-
- pixmap = make_composite_pixmap (drawable, gc,
- ecol->pixbuf, &style->bg[state],
- clip_width, clip_height,
- xpos,
- inner_y + (inner_height - clip_height) / 2);
- if (pixmap) {
- gdk_draw_pixmap (drawable, gc, pixmap,
- 0, 0,
- xpos,
- inner_y + (inner_height - clip_height) / 2,
- clip_width, clip_height);
- gdk_pixmap_unref (pixmap);
- }
- } else {
- int ypos;
-
- ypos = inner_y + (inner_height - font->ascent - font->descent) / 2 + font->ascent;
-
- e_table_draw_elided_string (drawable, font, gc,
- inner_x, ypos,
- ecol->text, inner_width, TRUE);
- }
-}
-
-/* Computes the length of a string that needs to be trimmed for elision */
-static int
-compute_elision_length (GdkFont *font, const char *str, int max_width)
-{
- int len;
- int l = 0, left, right;
- int rbearing;
-
- len = strlen (str);
-
- if (len <= 0)
- return 0;
-
- left = 0;
- right = len;
-
- while (left < right) {
- l = (left + right) / 2;
- gdk_text_extents (font, str, l, NULL, &rbearing, NULL, NULL, NULL);
-
- if (rbearing < max_width)
- left = l + 1;
- else if (rbearing > max_width)
- right = l;
- else
- return l;
- }
-
- if (rbearing > max_width)
- return MAX (0, l - 1);
- else
- return l;
-}
-
-/* Default width of the elision arrow in pixels */
-#define ARROW_WIDTH 4
-
-/**
- * e_table_draw_elided_string:
- * @drawable: Destination drawable.
- * @font: Font for the text.
- * @gc: GC to use for drawing.
- * @x: X insertion point for the string.
- * @y: Y insertion point for the string's baseline.
- * @str: String to draw.
- * @max_width: Maximum width in which the string must fit.
- * @center: Whether to center the string in the available area if it does fit.
- *
- * Draws a string, possibly trimming it so that it fits inside the specified
- * maximum width. If it does not fit, an elision indicator is drawn after the
- * last character that does fit.
- **/
-void
-e_table_draw_elided_string (GdkDrawable *drawable, GdkFont *font, GdkGC *gc,
- int x, int y, const char *str, int max_width, gboolean center)
-{
- int rbearing;
- int width;
-
- g_return_if_fail (drawable != NULL);
- g_return_if_fail (font != NULL);
- g_return_if_fail (gc != NULL);
- g_return_if_fail (str != NULL);
- g_return_if_fail (max_width >= 0);
-
- gdk_string_extents (font, str, NULL, &rbearing, &width, NULL, NULL);
-
- if (rbearing <= max_width) {
- int xpos;
-
- if (center)
- xpos = x + (max_width - width) / 2;
- else
- xpos = x;
-
- gdk_draw_string (drawable, font, gc, xpos, y, str);
- } else {
- int arrow_width;
- int len;
- int i;
-
- if (max_width < ARROW_WIDTH + 1)
- arrow_width = max_width - 1;
- else
- arrow_width = ARROW_WIDTH;
-
- len = compute_elision_length (font, str, max_width - arrow_width - 1);
- gdk_draw_text (drawable, font, gc, x, y, str, len);
-
- gdk_text_extents (font, str, len, NULL, &rbearing, NULL, NULL, NULL);
-
- y -= font->ascent;
-
- for (i = 0; i < arrow_width; i++) {
- int h;
-
- h = 2 * i + 1;
-
- gdk_draw_line (drawable, gc,
- x + rbearing + arrow_width - i,
- y + (font->ascent + font->descent - h) / 2,
- x + rbearing + arrow_width - i,
- y + (font->ascent + font->descent - h) / 2 + h - 1);
- }
- }
-}
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