X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=gtk2_ardour%2Futils.cc;h=aa68519560534977294548c432fc9735dab9ce18;hb=2292e33ee418070c4d12971a72e01eb29dfc8de9;hp=b313d3b129bc01603bd427f4ab2a21f1288e56e5;hpb=97c911262100ad866a17a0aea8f4f0d306fb6625;p=ardour.git diff --git a/gtk2_ardour/utils.cc b/gtk2_ardour/utils.cc index b313d3b129..aa68519560 100644 --- a/gtk2_ardour/utils.cc +++ b/gtk2_ardour/utils.cc @@ -1,7 +1,7 @@ /* - Copyright (C) 2003 Paul Davis + Copyright (C) 2003 Paul Davis - This program is free software; you can redistribute it and/or modify + This program is free software; you an 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. @@ -15,189 +15,77 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id$ */ +#ifdef WAF_BUILD +#include "gtk2ardour-config.h" +#endif + +#include // for fontmap resolution control for GnomeCanvas +#include // for fontmap resolution control for GnomeCanvas + #include +#include +#include #include +#include +#include +#include #include +#include #include #include #include #include #include +#include + +#include "pbd/file_utils.h" #include +#include "ardour/rc_configuration.h" + +#include "ardour/filesystem_paths.h" #include "ardour_ui.h" +#include "debug.h" +#include "public_editor.h" +#include "keyboard.h" #include "utils.h" #include "i18n.h" #include "rgb_macros.h" +#include "canvas_impl.h" +#include "gui_thread.h" using namespace std; using namespace Gtk; +using namespace Glib; +using namespace PBD; +using Gtkmm2ext::Keyboard; -string -short_version (string orig, string::size_type target_length) -{ - /* this tries to create a recognizable abbreviation - of "orig" by removing characters until we meet - a certain target length. - - note that we deliberately leave digits in the result - without modification. - */ - - - string::size_type pos; - - /* remove white-space and punctuation, starting at end */ - - while (orig.length() > target_length) { - if ((pos = orig.find_last_of (_("\"\n\t ,<.>/?:;'[{}]~`!@#$%^&*()_-+="))) == string::npos) { - break; - } - orig.replace (pos, 1, ""); - } - - /* remove lower-case vowels, starting at end */ - - while (orig.length() > target_length) { - if ((pos = orig.find_last_of (_("aeiou"))) == string::npos) { - break; - } - orig.replace (pos, 1, ""); - } - - /* remove upper-case vowels, starting at end */ - - while (orig.length() > target_length) { - if ((pos = orig.find_last_of (_("AEIOU"))) == string::npos) { - break; - } - orig.replace (pos, 1, ""); - } - - /* remove lower-case consonants, starting at end */ - - while (orig.length() > target_length) { - if ((pos = orig.find_last_of (_("bcdfghjklmnpqrtvwxyz"))) == string::npos) { - break; - } - orig.replace (pos, 1, ""); - } - - /* remove upper-case consonants, starting at end */ +sigc::signal DPIReset; - while (orig.length() > target_length) { - if ((pos = orig.find_last_of (_("BCDFGHJKLMNPQRTVWXYZ"))) == string::npos) { - break; - } - orig.replace (pos, 1, ""); - } - - /* whatever the length is now, use it */ - - return orig; -} - -string -fit_to_pixels (string str, int32_t pixel_width, Gdk_Font& font) -{ - gint width; - gint lbearing; - gint rbearing; - gint ascent; - gint descent; - - int namelen = str.length(); - char cstr[namelen+1]; - strcpy (cstr, str.c_str()); - - while (namelen) { - - gdk_string_extents (font, - cstr, - &lbearing, - &rbearing, - &width, - &ascent, - &descent); - - if (width < (pixel_width)) { - break; - } - - --namelen; - cstr[namelen] = '\0'; - - } - - return cstr; -} - -int -atoi (const string& s) -{ - return atoi (s.c_str()); -} - -double -atof (const string& s) -{ - return atof (s.c_str()); -} +/** Add an element to a menu, settings its sensitivity. + * @param m Menu to add to. + * @param e Element to add. + * @param s true to make sensitive, false to make insensitive + */ void -strip_whitespace_edges (string& str) +add_item_with_sensitivity (Menu_Helpers::MenuList& m, Menu_Helpers::MenuElem e, bool s) { - string::size_type i; - string::size_type len; - string::size_type s; - - len = str.length(); - - for (i = 0; i < len; ++i) { - if (isgraph (str[i])) { - break; - } + m.push_back (e); + if (!s) { + m.back().set_sensitive (false); } - - s = i; - - for (i = len - 1; i >= 0; --i) { - if (isgraph (str[i])) { - break; - } - } - - str = str.substr (s, (i - s) + 1); } -vector -internationalize (const char **array) -{ - vector v; - - for (uint32_t i = 0; array[i]; ++i) { - v.push_back (_(array[i])); - } - - return v; -} gint -just_hide_it (GdkEventAny *ev, Gtk::Window *win) -{ - ARDOUR_UI::instance()->allow_focus (false); - win->hide_all (); - return TRUE; -} - -void -allow_keyboard_focus (bool yn) +just_hide_it (GdkEventAny */*ev*/, Gtk::Window *win) { - ARDOUR_UI::instance()->allow_focus (yn); + win->hide (); + return 0; } /* xpm2rgb copied from nixieclock, which bore the legend: @@ -215,23 +103,23 @@ xpm2rgb (const char** xpm, uint32_t& w, uint32_t& h) uint32_t t, x, y, colors, cpp; unsigned char c; unsigned char *savergb, *rgb; - + // PARSE HEADER - + if ( sscanf(xpm[0], "%u%u%u%u", &w, &h, &colors, &cpp) != 4 ) { - error << compose (_("bad XPM header %1"), xpm[0]) + error << string_compose (_("bad XPM header %1"), xpm[0]) << endmsg; return 0; } - savergb = rgb = (unsigned char*)art_alloc (h * w * 3); - + savergb = rgb = (unsigned char*) malloc (h * w * 3); + // LOAD XPM COLORMAP LONG ENOUGH TO DO CONVERSION for (t = 0; t < colors; ++t) { sscanf (xpm[t+1], "%c c #%lx", &c, &val); vals[c] = val; } - + // COLORMAP -> RGB CONVERSION // Get low 3 bytes from vals[] // @@ -262,13 +150,13 @@ xpm2rgba (const char** xpm, uint32_t& w, uint32_t& h) // PARSE HEADER if ( sscanf(xpm[0], "%u%u%u%u", &w, &h, &colors, &cpp) != 4 ) { - error << compose (_("bad XPM header %1"), xpm[0]) + error << string_compose (_("bad XPM header %1"), xpm[0]) << endmsg; return 0; } - savergb = rgb = (unsigned char*)art_alloc (h * w * 4); - + savergb = rgb = (unsigned char*) malloc (h * w * 4); + // LOAD XPM COLORMAP LONG ENOUGH TO DO CONVERSION if (strstr (xpm[1], "None")) { @@ -283,7 +171,7 @@ xpm2rgba (const char** xpm, uint32_t& w, uint32_t& h) sscanf (xpm[t+1], "%c c #%lx", &c, &val); vals[c] = val; } - + // COLORMAP -> RGB CONVERSION // Get low 3 bytes from vals[] // @@ -313,8 +201,8 @@ xpm2rgba (const char** xpm, uint32_t& w, uint32_t& h) return (savergb); } -GnomeCanvasPoints* -get_canvas_points (string who, uint32_t npoints) +ArdourCanvas::Points* +get_canvas_points (string /*who*/, uint32_t npoints) { // cerr << who << ": wants " << npoints << " canvas points" << endl; #ifdef TRAP_EXCESSIVE_POINT_REQUESTS @@ -322,199 +210,569 @@ get_canvas_points (string who, uint32_t npoints) abort (); } #endif - return gnome_canvas_points_new (npoints); + return new ArdourCanvas::Points (npoints); } -int -channel_combo_get_channel_count (Gtk::Combo& combo) +Pango::FontDescription +get_font_for_style (string widgetname) { - string str = combo.get_entry()->get_text(); - int chns; - - if (str == _("mono")) { - return 1; - } else if (str == _("stereo")) { - return 2; - } else if ((chns = atoi (str)) != 0) { - return chns; - } else { - return 0; + Gtk::Window window (WINDOW_TOPLEVEL); + Gtk::Label foobar; + Glib::RefPtr style; + + window.add (foobar); + foobar.set_name (widgetname); + foobar.ensure_style(); + + style = foobar.get_style (); + + Glib::RefPtr layout = foobar.get_layout(); + + PangoFontDescription *pfd = const_cast (pango_layout_get_font_description(const_cast(layout->gobj()))); + + if (!pfd) { + + /* layout inherited its font description from a PangoContext */ + + PangoContext* ctxt = (PangoContext*) pango_layout_get_context (const_cast(layout->gobj())); + pfd = pango_context_get_font_description (ctxt); + return Pango::FontDescription (pfd); /* make a copy */ } + + return Pango::FontDescription (pfd); /* make a copy */ } -static int32_t -int_from_hex (char hic, char loc) +uint32_t +rgba_from_style (string style, uint32_t r, uint32_t g, uint32_t b, uint32_t a, string attr, int state, bool rgba) { - int hi; /* hi byte */ - int lo; /* low byte */ + /* In GTK+2, styles aren't set up correctly if the widget is not + attached to a toplevel window that has a screen pointer. + */ + + static Gtk::Window* window = 0; + + if (window == 0) { + window = new Window (WINDOW_TOPLEVEL); + } + + Gtk::Label foo; - hi = (int) hic; + window->add (foo); - if( ('0'<=hi) && (hi<='9') ) { - hi -= '0'; - } else if( ('a'<= hi) && (hi<= 'f') ) { - hi -= ('a'-10); - } else if( ('A'<=hi) && (hi<='F') ) { - hi -= ('A'-10); + foo.set_name (style); + foo.ensure_style (); + + GtkRcStyle* rc = foo.get_style()->gobj()->rc_style; + + if (rc) { + if (attr == "fg") { + r = rc->fg[state].red / 257; + g = rc->fg[state].green / 257; + b = rc->fg[state].blue / 257; + + /* what a hack ... "a" is for "active" */ + if (state == Gtk::STATE_NORMAL && rgba) { + a = rc->fg[GTK_STATE_ACTIVE].red / 257; + } + } else if (attr == "bg") { + r = g = b = 0; + r = rc->bg[state].red / 257; + g = rc->bg[state].green / 257; + b = rc->bg[state].blue / 257; + } else if (attr == "base") { + r = rc->base[state].red / 257; + g = rc->base[state].green / 257; + b = rc->base[state].blue / 257; + } else if (attr == "text") { + r = rc->text[state].red / 257; + g = rc->text[state].green / 257; + b = rc->text[state].blue / 257; + } + } else { + warning << string_compose (_("missing RGBA style for \"%1\""), style) << endl; } - - lo = (int) loc; - - if( ('0'<=lo) && (lo<='9') ) { - lo -= '0'; - } else if( ('a'<=lo) && (lo<='f') ) { - lo -= ('a'-10); - } else if( ('A'<=lo) && (lo<='F') ) { - lo -= ('A'-10); + + window->remove (); + + if (state == Gtk::STATE_NORMAL && rgba) { + return (uint32_t) RGBA_TO_UINT(r,g,b,a); + } else { + return (uint32_t) RGB_TO_UINT(r,g,b); } +} - return lo + (16 * hi); +bool +canvas_item_visible (ArdourCanvas::Item* item) +{ + return (item->gobj()->object.flags & GNOME_CANVAS_ITEM_VISIBLE) ? true : false; } void -url_decode (string& url) +set_color (Gdk::Color& c, int rgb) +{ + c.set_rgb((rgb >> 16)*256, ((rgb & 0xff00) >> 8)*256, (rgb & 0xff)*256); +} + +bool +relay_key_press (GdkEventKey* ev, Gtk::Window* win) +{ + if (!key_press_focus_accelerator_handler (*win, ev)) { + return PublicEditor::instance().on_key_press_event(ev); + } else { + return true; + } +} + +bool +forward_key_press (GdkEventKey* ev) { - string::iterator last; - string::iterator next; + return PublicEditor::instance().on_key_press_event(ev); +} - for (string::iterator i = url.begin(); i != url.end(); ++i) { - if ((*i) == '+') { - *i = ' '; +bool +key_press_focus_accelerator_handler (Gtk::Window& window, GdkEventKey* ev) +{ + GtkWindow* win = window.gobj(); + GtkWidget* focus = gtk_window_get_focus (win); + bool special_handling_of_unmodified_accelerators = false; + bool allow_activating = true; + /* consider all relevant modifiers but not LOCK or SHIFT */ + const guint mask = (Keyboard::RelevantModifierKeyMask & ~(Gdk::SHIFT_MASK|Gdk::LOCK_MASK)); + + if (focus) { + if (GTK_IS_ENTRY(focus) || Keyboard::some_magic_widget_has_focus()) { + special_handling_of_unmodified_accelerators = true; } } - if (url.length() <= 3) { - return; +#ifdef GTKOSX + /* at one time this appeared to be necessary. As of July 2012, it does not + appear to be. if it ever is necessar, figure out if it should apply + to all platforms. + */ +#if 0 + if (Keyboard::some_magic_widget_has_focus ()) { + allow_activating = false; } +#endif +#endif + + + DEBUG_TRACE (DEBUG::Accelerators, string_compose ("Win = %1 focus = %7 Key event: code = %2 state = %3 special handling ? %4 magic widget focus ? %5 allow_activation ? %6\n", + win, + ev->keyval, + ev->state, + special_handling_of_unmodified_accelerators, + Keyboard::some_magic_widget_has_focus(), + allow_activating, + focus)); + + /* This exists to allow us to override the way GTK handles + key events. The normal sequence is: + + a) event is delivered to a GtkWindow + b) accelerators/mnemonics are activated + c) if (b) didn't handle the event, propagate to + the focus widget and/or focus chain + + The problem with this is that if the accelerators include + keys without modifiers, such as the space bar or the + letter "e", then pressing the key while typing into + a text entry widget results in the accelerator being + activated, instead of the desired letter appearing + in the text entry. + + There is no good way of fixing this, but this + represents a compromise. The idea is that + key events involving modifiers (not Shift) + get routed into the activation pathway first, then + get propagated to the focus widget if necessary. + + If the key event doesn't involve modifiers, + we deliver to the focus widget first, thus allowing + it to get "normal text" without interference + from acceleration. + + Of course, this can also be problematic: if there + is a widget with focus, then it will swallow + all "normal text" accelerators. + */ + + if (!special_handling_of_unmodified_accelerators) { + + /* XXX note that for a brief moment, the conditional above + * included "|| (ev->state & mask)" so as to enforce the + * implication of special_handling_of_UNMODIFIED_accelerators. + * however, this forces any key that GTK doesn't allow and that + * we have an alternative (see next comment) for to be + * automatically sent through the accel groups activation + * pathway, which prevents individual widgets & canvas items + * from ever seeing it if is used by a key binding. + * + * specifically, this hid Ctrl-down-arrow from MIDI region + * views because it is also bound to an action. + * + * until we have a robust, clean binding system, this + * quirk will have to remain in place. + */ + + /* pretend that certain key events that GTK does not allow + to be used as accelerators are actually something that + it does allow. but only where there are no modifiers. + */ + + uint32_t fakekey = ev->keyval; + + if (Gtkmm2ext::possibly_translate_keyval_to_make_legal_accelerator (fakekey)) { + DEBUG_TRACE (DEBUG::Accelerators, string_compose ("\tactivate (was %1 now %2) without special hanlding of unmodified accels\n", + ev->keyval, fakekey)); + + GdkModifierType mod = GdkModifierType (ev->state); + + mod = GdkModifierType (mod & gtk_accelerator_get_default_mod_mask()); +#ifdef GTKOSX + /* GTK on OS X is currently (February 2012) setting both + the Meta and Mod2 bits in the event modifier state if + the Command key is down. + + gtk_accel_groups_activate() does not invoke any of the logic + that gtk_window_activate_key() will that sorts out that stupid + state of affairs, and as a result it fails to find a match + for the key event and the current set of accelerators. - last = url.end(); + to fix this, if the meta bit is set, remove the mod2 bit + from the modifier. this assumes that our bindings use Primary + which will have set the meta bit in the accelerator entry. + */ + if (mod & GDK_META_MASK) { + mod = GdkModifierType (mod & ~GDK_MOD2_MASK); + } +#endif - --last; /* points at last char */ - --last; /* points at last char - 1 */ + if (allow_activating && gtk_accel_groups_activate(G_OBJECT(win), fakekey, mod)) { + DEBUG_TRACE (DEBUG::Accelerators, "\taccel group activated by fakekey\n"); + return true; + } + } + } - for (string::iterator i = url.begin(); i != last; ) { + if (!special_handling_of_unmodified_accelerators || (ev->state & mask)) { - if (*i == '%') { + /* no special handling or there are modifiers in effect: accelerate first */ - next = i; + DEBUG_TRACE (DEBUG::Accelerators, "\tactivate, then propagate\n"); - url.erase (i); - - i = next; - ++next; - - if (isxdigit (*i) && isxdigit (*next)) { - /* replace first digit with char */ - *i = int_from_hex (*i,*next); - ++i; /* points at 2nd of 2 digits */ - url.erase (i); + if (allow_activating) { + DEBUG_TRACE (DEBUG::Accelerators, "\tsending to window\n"); + if (gtk_window_activate_key (win, ev)) { + DEBUG_TRACE (DEBUG::Accelerators, "\t\thandled\n"); + return true; } } else { - ++i; + DEBUG_TRACE (DEBUG::Accelerators, "\tactivation skipped\n"); + } + + DEBUG_TRACE (DEBUG::Accelerators, "\tnot accelerated, now propagate\n"); + + return gtk_window_propagate_key_event (win, ev); + } + + /* no modifiers, propagate first */ + + DEBUG_TRACE (DEBUG::Accelerators, "\tpropagate, then activate\n"); + + if (!gtk_window_propagate_key_event (win, ev)) { + DEBUG_TRACE (DEBUG::Accelerators, "\tpropagation didn't handle, so activate\n"); + if (allow_activating) { + return gtk_window_activate_key (win, ev); + } else { + DEBUG_TRACE (DEBUG::Accelerators, "\tactivation skipped\n"); + } + + } else { + DEBUG_TRACE (DEBUG::Accelerators, "\thandled by propagate\n"); + return true; + } + + DEBUG_TRACE (DEBUG::Accelerators, "\tnot handled\n"); + return true; +} + +Glib::RefPtr +get_xpm (std::string name) +{ + if (!xpm_map[name]) { + + SearchPath spath(ARDOUR::ardour_data_search_path()); + + spath.add_subdirectory_to_paths("pixmaps"); + + std::string data_file_path; + + if(!find_file_in_search_path (spath, name, data_file_path)) { + fatal << string_compose (_("cannot find XPM file for %1"), name) << endmsg; + } + + try { + xpm_map[name] = Gdk::Pixbuf::create_from_file (data_file_path); + } catch(const Glib::Error& e) { + warning << "Caught Glib::Error: " << e.what() << endmsg; } } + + return xpm_map[name]; } -string -get_font_for_style (string widgetname) +std::string +get_icon_path (const char* cname) { - Gtk::Label foobar; + string name = cname; + name += X_(".png"); - foobar.set_name (widgetname); - foobar.ensure_style(); + SearchPath spath(ARDOUR::ardour_data_search_path()); + + spath.add_subdirectory_to_paths("icons"); + + std::string data_file_path; - if (foobar.get_style() == 0 || foobar.get_style()->gobj()->rc_style == 0 || foobar.get_style()->gobj()->rc_style->font_name == 0) { - return "fixed"; + if (!find_file_in_search_path (spath, name, data_file_path)) { + fatal << string_compose (_("cannot find icon image for %1 using %2"), name, spath.to_string()) << endmsg; } - string str = foobar.get_style()->gobj()->rc_style->font_name; + return data_file_path; +} - if (str.empty()) { - return "fixed"; // standard X Window fallback font - } else { - return str; +Glib::RefPtr +get_icon (const char* cname) +{ + Glib::RefPtr img; + try { + img = Gdk::Pixbuf::create_from_file (get_icon_path (cname)); + } catch (const Gdk::PixbufError &e) { + cerr << "Caught PixbufError: " << e.what() << endl; + } catch (...) { + error << string_compose (_("Caught exception while loading icon named %1"), cname) << endmsg; } + + return img; } -gint -pane_handler (GdkEventButton* ev, Gtk::Paned* pane) + +string +longest (vector& strings) { - if (ev->window != Gtkmm2ext::get_paned_handle (*pane)) { - return FALSE; + if (strings.empty()) { + return string (""); } - if (Keyboard::is_delete_event (ev)) { + vector::iterator longest = strings.begin(); + string::size_type longest_length = (*longest).length(); - gint pos; - gint cmp; + vector::iterator i = longest; + ++i; - pos = Gtkmm2ext::gtk_paned_get_position (pane->gobj()); + while (i != strings.end()) { - if (dynamic_cast(pane)) { - cmp = pane->get_height(); + string::size_type len = (*i).length(); + + if (len > longest_length) { + longest = i; + longest_length = len; + } + + ++i; + } + + return *longest; +} + +bool +key_is_legal_for_numeric_entry (guint keyval) +{ + /* we assume that this does not change over the life of the process + */ + + static int comma_decimal = -1; + + switch (keyval) { + case GDK_period: + case GDK_comma: + if (comma_decimal < 0) { + std::lconv* lc = std::localeconv(); + if (strchr (lc->decimal_point, ',') != 0) { + comma_decimal = 1; + } else { + comma_decimal = 0; + } + } + break; + default: + break; + } + + switch (keyval) { + case GDK_decimalpoint: + case GDK_KP_Separator: + return true; + + case GDK_period: + if (comma_decimal) { + return false; } else { - cmp = pane->get_width(); + return true; } + break; + case GDK_comma: + if (comma_decimal) { + return true; + } else { + return false; + } + break; + case GDK_minus: + case GDK_plus: + case GDK_0: + case GDK_1: + case GDK_2: + case GDK_3: + case GDK_4: + case GDK_5: + case GDK_6: + case GDK_7: + case GDK_8: + case GDK_9: + case GDK_KP_Add: + case GDK_KP_Subtract: + case GDK_KP_Decimal: + case GDK_KP_0: + case GDK_KP_1: + case GDK_KP_2: + case GDK_KP_3: + case GDK_KP_4: + case GDK_KP_5: + case GDK_KP_6: + case GDK_KP_7: + case GDK_KP_8: + case GDK_KP_9: + case GDK_Return: + case GDK_BackSpace: + case GDK_Delete: + case GDK_KP_Enter: + case GDK_Home: + case GDK_End: + case GDK_Left: + case GDK_Right: + return true; + + default: + break; + } - /* we have to use approximations here because we can't predict the - exact position or sizes of the pane (themes, etc) - */ + return false; +} +void +set_pango_fontsize () +{ + long val = ARDOUR::Config->get_font_scale(); - if (pos < 10 || abs (pos - cmp) < 10) { + /* FT2 rendering - used by GnomeCanvas, sigh */ - /* already collapsed: restore it (note that this is cast from a pointer value to int, which is tricky on 64bit */ - - pane->set_position ((gint64) pane->get_data ("rpos")); + pango_ft2_font_map_set_resolution ((PangoFT2FontMap*) pango_ft2_font_map_for_display(), val/1024, val/1024); - } else { + /* Cairo rendering, in case there is any */ - int collapse_direction; + pango_cairo_font_map_set_resolution ((PangoCairoFontMap*) pango_cairo_font_map_get_default(), val/1024); +} - /* store the current position */ +void +reset_dpi () +{ + long val = ARDOUR::Config->get_font_scale(); + set_pango_fontsize (); + /* Xft rendering */ - pane->set_data ("rpos", (gpointer) pos); + gtk_settings_set_long_property (gtk_settings_get_default(), + "gtk-xft-dpi", val, "ardour"); + DPIReset();//Emit Signal +} - /* collapse to show the relevant child in full */ - - collapse_direction = (gint64) pane->get_data ("collapse-direction"); +void +resize_window_to_proportion_of_monitor (Gtk::Window* window, int max_width, int max_height) +{ + Glib::RefPtr screen = window->get_screen (); + Gdk::Rectangle monitor_rect; + screen->get_monitor_geometry (0, monitor_rect); - if (collapse_direction) { - pane->set_position (1); - } else { - if (dynamic_cast(pane)) { - pane->set_position (pane->get_height()); - } else { - pane->set_position (pane->get_width()); - } - } + int const w = std::min (int (monitor_rect.get_width() * 0.8), max_width); + int const h = std::min (int (monitor_rect.get_height() * 0.8), max_height); + + window->resize (w, h); +} + + +/** Replace _ with __ in a string; for use with menu item text to make underscores displayed correctly */ +string +escape_underscores (string const & s) +{ + string o; + string::size_type const N = s.length (); + + for (string::size_type i = 0; i < N; ++i) { + if (s[i] == '_') { + o += "__"; + } else { + o += s[i]; } + } - return TRUE; - } + return o; +} - return FALSE; +/** Replace < and > with < and > respectively to make < > display correctly in markup strings */ +string +escape_angled_brackets (string const & s) +{ + string o = s; + boost::replace_all (o, "<", "<"); + boost::replace_all (o, ">", ">"); + return o; } -uint32_t -rgba_from_style (string style, uint32_t r, uint32_t g, uint32_t b, uint32_t a) + +Gdk::Color +unique_random_color (list& used_colors) { - Gtk::Label foo; - - foo.set_name (style); - foo.ensure_style (); - - GtkRcStyle* waverc = foo.get_style()->gobj()->rc_style; + Gdk::Color newcolor; - if (waverc) { - r = waverc->fg[Gtk::STATE_NORMAL].red / 257; - g = waverc->fg[Gtk::STATE_NORMAL].green / 257; - b = waverc->fg[Gtk::STATE_NORMAL].blue / 257; + while (1) { - /* what a hack ... "a" is for "active" */ + /* avoid neon/glowing tones by limiting them to the + "inner section" (paler) of a color wheel/circle. + */ - a = waverc->fg[GTK_STATE_ACTIVE].red / 257; + const int32_t max_saturation = 48000; // 65535 would open up the whole color wheel - } else { - warning << compose (_("missing RGBA style for \"%1\""), style) << endl; + newcolor.set_red (random() % max_saturation); + newcolor.set_blue (random() % max_saturation); + newcolor.set_green (random() % max_saturation); + + if (used_colors.size() == 0) { + used_colors.push_back (newcolor); + return newcolor; + } + + for (list::iterator i = used_colors.begin(); i != used_colors.end(); ++i) { + Gdk::Color c = *i; + float rdelta, bdelta, gdelta; + + rdelta = newcolor.get_red() - c.get_red(); + bdelta = newcolor.get_blue() - c.get_blue(); + gdelta = newcolor.get_green() - c.get_green(); + + if (sqrt (rdelta*rdelta + bdelta*bdelta + gdelta*gdelta) > 25.0) { + used_colors.push_back (newcolor); + return newcolor; + } + } + + /* XXX need throttle here to make sure we don't spin for ever */ } - - return (uint32_t) RGBA_TO_UINT(r,g,b,a); }