521 lines
10 KiB
C++
521 lines
10 KiB
C++
/*
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Copyright (C) 2003 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#include <cstdlib>
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#include <cctype>
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#include <libart_lgpl/art_misc.h>
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#include <gtkmm/window.h>
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#include <gtkmm/combo.h>
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#include <gtkmm/label.h>
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#include <gtkmm/paned.h>
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#include <gtk/gtkpaned.h>
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#include <gtkmm2ext/utils.h>
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#include "ardour_ui.h"
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#include "utils.h"
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#include "i18n.h"
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#include "rgb_macros.h"
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using namespace std;
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using namespace Gtk;
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string
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short_version (string orig, string::size_type target_length)
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{
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/* this tries to create a recognizable abbreviation
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of "orig" by removing characters until we meet
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a certain target length.
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note that we deliberately leave digits in the result
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without modification.
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*/
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string::size_type pos;
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/* remove white-space and punctuation, starting at end */
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while (orig.length() > target_length) {
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if ((pos = orig.find_last_of (_("\"\n\t ,<.>/?:;'[{}]~`!@#$%^&*()_-+="))) == string::npos) {
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break;
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}
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orig.replace (pos, 1, "");
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}
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/* remove lower-case vowels, starting at end */
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while (orig.length() > target_length) {
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if ((pos = orig.find_last_of (_("aeiou"))) == string::npos) {
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break;
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}
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orig.replace (pos, 1, "");
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}
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/* remove upper-case vowels, starting at end */
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while (orig.length() > target_length) {
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if ((pos = orig.find_last_of (_("AEIOU"))) == string::npos) {
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break;
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}
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orig.replace (pos, 1, "");
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}
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/* remove lower-case consonants, starting at end */
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while (orig.length() > target_length) {
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if ((pos = orig.find_last_of (_("bcdfghjklmnpqrtvwxyz"))) == string::npos) {
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break;
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}
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orig.replace (pos, 1, "");
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}
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/* remove upper-case consonants, starting at end */
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while (orig.length() > target_length) {
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if ((pos = orig.find_last_of (_("BCDFGHJKLMNPQRTVWXYZ"))) == string::npos) {
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break;
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}
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orig.replace (pos, 1, "");
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}
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/* whatever the length is now, use it */
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return orig;
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}
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string
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fit_to_pixels (string str, int32_t pixel_width, Gdk_Font& font)
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{
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gint width;
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gint lbearing;
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gint rbearing;
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gint ascent;
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gint descent;
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int namelen = str.length();
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char cstr[namelen+1];
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strcpy (cstr, str.c_str());
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while (namelen) {
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gdk_string_extents (font,
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cstr,
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&lbearing,
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&rbearing,
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&width,
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&ascent,
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&descent);
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if (width < (pixel_width)) {
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break;
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}
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--namelen;
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cstr[namelen] = '\0';
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}
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return cstr;
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}
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int
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atoi (const string& s)
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{
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return atoi (s.c_str());
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}
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double
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atof (const string& s)
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{
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return atof (s.c_str());
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}
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void
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strip_whitespace_edges (string& str)
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{
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string::size_type i;
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string::size_type len;
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string::size_type s;
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len = str.length();
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for (i = 0; i < len; ++i) {
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if (isgraph (str[i])) {
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break;
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}
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}
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s = i;
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for (i = len - 1; i >= 0; --i) {
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if (isgraph (str[i])) {
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break;
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}
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}
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str = str.substr (s, (i - s) + 1);
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}
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vector<string>
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internationalize (const char **array)
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{
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vector<string> v;
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for (uint32_t i = 0; array[i]; ++i) {
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v.push_back (_(array[i]));
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}
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return v;
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}
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gint
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just_hide_it (GdkEventAny *ev, Gtk::Window *win)
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{
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ARDOUR_UI::instance()->allow_focus (false);
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win->hide_all ();
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return TRUE;
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}
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void
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allow_keyboard_focus (bool yn)
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{
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ARDOUR_UI::instance()->allow_focus (yn);
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}
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/* xpm2rgb copied from nixieclock, which bore the legend:
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nixieclock - a nixie desktop timepiece
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Copyright (C) 2000 Greg Ercolano, erco@3dsite.com
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and was released under the GPL.
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*/
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unsigned char*
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xpm2rgb (const char** xpm, uint32_t& w, uint32_t& h)
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{
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static long vals[256], val;
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uint32_t t, x, y, colors, cpp;
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unsigned char c;
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unsigned char *savergb, *rgb;
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// PARSE HEADER
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if ( sscanf(xpm[0], "%u%u%u%u", &w, &h, &colors, &cpp) != 4 ) {
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error << compose (_("bad XPM header %1"), xpm[0])
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<< endmsg;
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return 0;
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}
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savergb = rgb = (unsigned char*)art_alloc (h * w * 3);
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// LOAD XPM COLORMAP LONG ENOUGH TO DO CONVERSION
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for (t = 0; t < colors; ++t) {
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sscanf (xpm[t+1], "%c c #%lx", &c, &val);
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vals[c] = val;
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}
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// COLORMAP -> RGB CONVERSION
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// Get low 3 bytes from vals[]
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//
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const char *p;
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for (y = h-1; y > 0; --y) {
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for (p = xpm[1+colors+(h-y-1)], x = 0; x < w; x++, rgb += 3) {
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val = vals[(int)*p++];
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*(rgb+2) = val & 0xff; val >>= 8; // 2:B
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*(rgb+1) = val & 0xff; val >>= 8; // 1:G
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*(rgb+0) = val & 0xff; // 0:R
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}
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}
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return (savergb);
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}
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unsigned char*
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xpm2rgba (const char** xpm, uint32_t& w, uint32_t& h)
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{
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static long vals[256], val;
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uint32_t t, x, y, colors, cpp;
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unsigned char c;
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unsigned char *savergb, *rgb;
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char transparent;
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// PARSE HEADER
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if ( sscanf(xpm[0], "%u%u%u%u", &w, &h, &colors, &cpp) != 4 ) {
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error << compose (_("bad XPM header %1"), xpm[0])
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<< endmsg;
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return 0;
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}
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savergb = rgb = (unsigned char*)art_alloc (h * w * 4);
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// LOAD XPM COLORMAP LONG ENOUGH TO DO CONVERSION
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if (strstr (xpm[1], "None")) {
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sscanf (xpm[1], "%c", &transparent);
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t = 1;
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} else {
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transparent = 0;
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t = 0;
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}
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for (; t < colors; ++t) {
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sscanf (xpm[t+1], "%c c #%lx", &c, &val);
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vals[c] = val;
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}
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// COLORMAP -> RGB CONVERSION
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// Get low 3 bytes from vals[]
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//
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const char *p;
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for (y = h-1; y > 0; --y) {
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char alpha;
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for (p = xpm[1+colors+(h-y-1)], x = 0; x < w; x++, rgb += 4) {
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if (transparent && (*p++ == transparent)) {
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alpha = 0;
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val = 0;
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} else {
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alpha = 255;
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val = vals[(int)*p];
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}
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*(rgb+3) = alpha; // 3: alpha
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*(rgb+2) = val & 0xff; val >>= 8; // 2:B
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*(rgb+1) = val & 0xff; val >>= 8; // 1:G
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*(rgb+0) = val & 0xff; // 0:R
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}
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}
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return (savergb);
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}
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GnomeCanvasPoints*
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get_canvas_points (string who, uint32_t npoints)
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{
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// cerr << who << ": wants " << npoints << " canvas points" << endl;
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#ifdef TRAP_EXCESSIVE_POINT_REQUESTS
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if (npoints > (uint32_t) gdk_screen_width() + 4) {
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abort ();
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}
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#endif
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return gnome_canvas_points_new (npoints);
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}
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int
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channel_combo_get_channel_count (Gtk::Combo& combo)
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{
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string str = combo.get_entry()->get_text();
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int chns;
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if (str == _("mono")) {
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return 1;
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} else if (str == _("stereo")) {
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return 2;
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} else if ((chns = atoi (str)) != 0) {
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return chns;
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} else {
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return 0;
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}
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}
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static int32_t
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int_from_hex (char hic, char loc)
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{
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int hi; /* hi byte */
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int lo; /* low byte */
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hi = (int) hic;
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if( ('0'<=hi) && (hi<='9') ) {
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hi -= '0';
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} else if( ('a'<= hi) && (hi<= 'f') ) {
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hi -= ('a'-10);
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} else if( ('A'<=hi) && (hi<='F') ) {
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hi -= ('A'-10);
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}
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lo = (int) loc;
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if( ('0'<=lo) && (lo<='9') ) {
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lo -= '0';
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} else if( ('a'<=lo) && (lo<='f') ) {
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lo -= ('a'-10);
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} else if( ('A'<=lo) && (lo<='F') ) {
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lo -= ('A'-10);
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}
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return lo + (16 * hi);
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}
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void
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url_decode (string& url)
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{
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string::iterator last;
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string::iterator next;
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for (string::iterator i = url.begin(); i != url.end(); ++i) {
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if ((*i) == '+') {
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*i = ' ';
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}
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}
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if (url.length() <= 3) {
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return;
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}
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last = url.end();
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--last; /* points at last char */
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--last; /* points at last char - 1 */
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for (string::iterator i = url.begin(); i != last; ) {
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if (*i == '%') {
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next = i;
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url.erase (i);
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i = next;
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++next;
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if (isxdigit (*i) && isxdigit (*next)) {
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/* replace first digit with char */
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*i = int_from_hex (*i,*next);
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++i; /* points at 2nd of 2 digits */
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url.erase (i);
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}
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} else {
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++i;
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}
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}
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}
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string
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get_font_for_style (string widgetname)
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{
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Gtk::Label foobar;
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foobar.set_name (widgetname);
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foobar.ensure_style();
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if (foobar.get_style() == 0 || foobar.get_style()->gobj()->rc_style == 0 || foobar.get_style()->gobj()->rc_style->font_name == 0) {
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return "fixed";
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}
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string str = foobar.get_style()->gobj()->rc_style->font_name;
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if (str.empty()) {
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return "fixed"; // standard X Window fallback font
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} else {
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return str;
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}
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}
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gint
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pane_handler (GdkEventButton* ev, Gtk::Paned* pane)
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{
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if (ev->window != Gtkmm2ext::get_paned_handle (*pane)) {
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return FALSE;
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}
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if (Keyboard::is_delete_event (ev)) {
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gint pos;
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gint cmp;
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pos = Gtkmm2ext::gtk_paned_get_position (pane->gobj());
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if (dynamic_cast<VPaned*>(pane)) {
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cmp = pane->height();
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} else {
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cmp = pane->width();
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}
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/* we have to use approximations here because we can't predict the
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exact position or sizes of the pane (themes, etc)
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*/
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if (pos < 10 || abs (pos - cmp) < 10) {
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/* already collapsed: restore it (note that this is cast from a pointer value to int, which is tricky on 64bit */
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pane->set_position ((gint64) pane->get_data ("rpos"));
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} else {
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int collapse_direction;
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/* store the current position */
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pane->set_data ("rpos", (gpointer) pos);
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/* collapse to show the relevant child in full */
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collapse_direction = (gint64) pane->get_data ("collapse-direction");
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if (collapse_direction) {
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pane->set_position (1);
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} else {
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if (dynamic_cast<VPaned*>(pane)) {
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pane->set_position (pane->height());
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} else {
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pane->set_position (pane->width());
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}
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}
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}
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return TRUE;
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}
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return FALSE;
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}
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uint32_t
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rgba_from_style (string style, uint32_t r, uint32_t g, uint32_t b, uint32_t a)
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{
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Gtk::Label foo;
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foo.set_name (style);
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foo.ensure_style ();
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GtkRcStyle* waverc = foo.get_style()->gobj()->rc_style;
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if (waverc) {
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r = waverc->fg[Gtk::STATE_NORMAL].red / 257;
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g = waverc->fg[Gtk::STATE_NORMAL].green / 257;
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b = waverc->fg[Gtk::STATE_NORMAL].blue / 257;
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/* what a hack ... "a" is for "active" */
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a = waverc->fg[GTK_STATE_ACTIVE].red / 257;
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} else {
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warning << compose (_("missing RGBA style for \"%1\""), style) << endl;
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}
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return (uint32_t) RGBA_TO_UINT(r,g,b,a);
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}
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