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livetrax/gtk2_ardour/ui_config.cc
Julien "_FrnchFrgg_" RIVAUD 01ac1b5362 Merge set_pango_fontsize() into reset_dpi() 
… since reset_dpi() is the only caller.
2016-08-21 15:04:06 +02:00

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/*
Copyright (C) 1999-2014 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined USE_CAIRO_IMAGE_SURFACE && !defined NDEBUG
#define OPTIONAL_CAIRO_IMAGE_SURFACE
#endif
#include <iostream>
#include <sstream>
#include <unistd.h>
#include <cstdlib>
#include <cstdio> /* for snprintf, grrr */
#include <cairo/cairo.h>
#include <pango/pangoft2.h> // for fontmap resolution control for GnomeCanvas
#include <pango/pangocairo.h> // for fontmap resolution control for GnomeCanvas
#include <glibmm/miscutils.h>
#include <gtkmm/settings.h>
#include "pbd/convert.h"
#include "pbd/error.h"
#include "pbd/failed_constructor.h"
#include "pbd/file_utils.h"
#include "pbd/gstdio_compat.h"
#include "pbd/locale_guard.h"
#include "pbd/unwind.h"
#include "pbd/xml++.h"
#include "ardour/filesystem_paths.h"
#include "ardour/search_paths.h"
#include "ardour/revision.h"
#include "ardour/utils.h"
#include "gtkmm2ext/rgb_macros.h"
#include "gtkmm2ext/gtk_ui.h"
#include "ui_config.h"
#include "pbd/i18n.h"
using namespace std;
using namespace PBD;
using namespace ARDOUR;
using namespace ArdourCanvas;
static const char* ui_config_file_name = "ui_config";
static const char* default_ui_config_file_name = "default_ui_config";
static const double hue_width = 18.0;
std::string UIConfiguration::color_file_suffix = X_(".colors");
UIConfiguration&
UIConfiguration::instance ()
{
static UIConfiguration s_instance;
return s_instance;
}
UIConfiguration::UIConfiguration ()
:
#undef UI_CONFIG_VARIABLE
#define UI_CONFIG_VARIABLE(Type,var,name,val) var (name,val),
#define CANVAS_FONT_VARIABLE(var,name) var (name),
#include "ui_config_vars.h"
#include "canvas_vars.h"
#undef UI_CONFIG_VARIABLE
#undef CANVAS_FONT_VARIABLE
_dirty (false),
aliases_modified (false),
colors_modified (false),
modifiers_modified (false),
block_save (0)
{
load_state();
ColorsChanged.connect (boost::bind (&UIConfiguration::colors_changed, this));
ParameterChanged.connect (sigc::mem_fun (*this, &UIConfiguration::parameter_changed));
}
UIConfiguration::~UIConfiguration ()
{
}
void
UIConfiguration::colors_changed ()
{
reset_gtk_theme ();
/* In theory, one of these ought to work:
gtk_rc_reparse_all_for_settings (gtk_settings_get_default(), true);
gtk_rc_reset_styles (gtk_settings_get_default());
but in practice, neither of them do. So just reload the current
GTK RC file, which causes a reset of all styles and a redraw
*/
parameter_changed ("ui-rc-file");
}
void
UIConfiguration::parameter_changed (string param)
{
_dirty = true;
if (param == "ui-rc-file") {
load_rc_file (true);
} else if (param == "color-file") {
load_color_theme (true);
}
save_state ();
}
void
UIConfiguration::reset_gtk_theme ()
{
LocaleGuard lg;
stringstream ss;
ss << "gtk_color_scheme = \"" << hex;
for (ColorAliases::iterator g = color_aliases.begin(); g != color_aliases.end(); ++g) {
if (g->first.find ("gtk_") == 0) {
const string gtk_name = g->first.substr (4);
ss << gtk_name << ":#" << std::setw (6) << setfill ('0') << (color (g->second) >> 8) << ';';
}
}
ss << '"' << dec << endl;
/* reset GTK color scheme */
Gtk::Settings::get_default()->property_gtk_color_scheme() = ss.str();
}
void
UIConfiguration::reset_dpi ()
{
long val = get_font_scale();
/* FT2 rendering - used by GnomeCanvas, sigh */
#ifndef PLATFORM_WINDOWS
pango_ft2_font_map_set_resolution ((PangoFT2FontMap*) pango_ft2_font_map_new(), val/1024, val/1024);
#endif
/* Cairo rendering, in case there is any */
pango_cairo_font_map_set_resolution ((PangoCairoFontMap*) pango_cairo_font_map_get_default(), val/1024);
/* Xft rendering */
gtk_settings_set_long_property (gtk_settings_get_default(),
"gtk-xft-dpi", val, "ardour");
DPIReset(); //Emit Signal
}
float
UIConfiguration::get_ui_scale ()
{
return get_font_scale () / 102400.;
}
void
UIConfiguration::map_parameters (boost::function<void (std::string)>& functor)
{
#undef UI_CONFIG_VARIABLE
#define UI_CONFIG_VARIABLE(Type,var,Name,value) functor (Name);
#include "ui_config_vars.h"
#undef UI_CONFIG_VARIABLE
}
int
UIConfiguration::pre_gui_init ()
{
#ifdef CAIRO_SUPPORTS_FORCE_BUGGY_GRADIENTS_ENVIRONMENT_VARIABLE
if (get_buggy_gradients()) {
g_setenv ("FORCE_BUGGY_GRADIENTS", "1", 1);
}
#endif
#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
if (get_cairo_image_surface()) {
g_setenv ("ARDOUR_IMAGE_SURFACE", "1", 1);
}
#endif
return 0;
}
UIConfiguration*
UIConfiguration::post_gui_init ()
{
load_color_theme (true);
return this;
}
int
UIConfiguration::load_defaults ()
{
std::string rcfile;
int ret = -1;
if (find_file (ardour_config_search_path(), default_ui_config_file_name, rcfile) ) {
XMLTree tree;
info << string_compose (_("Loading default ui configuration file %1"), rcfile) << endmsg;
if (!tree.read (rcfile.c_str())) {
error << string_compose(_("cannot read default ui configuration file \"%1\""), rcfile) << endmsg;
} else {
if (set_state (*tree.root(), Stateful::loading_state_version)) {
error << string_compose(_("default ui configuration file \"%1\" not loaded successfully."), rcfile) << endmsg;
} else {
_dirty = false;
ret = 0;
}
}
} else {
warning << string_compose (_("Could not find default UI configuration file %1"), default_ui_config_file_name) << endmsg;
}
if (ret == 0) {
/* reload color theme */
load_color_theme (false);
}
return ret;
}
std::string
UIConfiguration::color_file_name (bool use_my, bool with_version) const
{
string basename;
if (use_my) {
basename += "my-";
}
//this is the overall theme file, e.g. "dark" plus "-downcase(PROGRAM_NAME)"
basename += color_file.get();
std::string rev (revision);
std::size_t pos = rev.find_first_of("-");
if (with_version && pos != string::npos && pos > 0) {
basename += "-";
basename += rev.substr (0, pos); // COLORFILE_VERSION - program major.minor
}
basename += color_file_suffix;
return basename;
}
int
UIConfiguration::load_color_file (string const & path)
{
XMLTree tree;
info << string_compose (_("Loading color file %1"), path) << endmsg;
if (!tree.read (path.c_str())) {
error << string_compose(_("cannot read color file \"%1\""), path) << endmsg;
return -1;
}
if (set_state (*tree.root(), Stateful::loading_state_version)) {
error << string_compose(_("color file \"%1\" not loaded successfully."), path) << endmsg;
return -1;
}
return 0;
}
int
UIConfiguration::load_color_theme (bool allow_own)
{
std::string cfile;
bool found = false;
/* ColorsChanged() will trigger a parameter_changed () which
* in turn calls save_state()
*/
PBD::Unwinder<uint32_t> uw (block_save, block_save + 1);
if (find_file (theme_search_path(), color_file_name (false, true), cfile)) {
found = true;
}
if (!found) {
if (find_file (theme_search_path(), color_file_name (false, false), cfile)) {
found = true;
}
}
if (!found) {
warning << string_compose (_("Color file for %1 not found along %2"), color_file.get(), theme_search_path().to_string()) << endmsg;
return -1;
}
(void) load_color_file (cfile);
if (allow_own) {
found = false;
PBD::Searchpath sp (user_config_directory());
/* user's own color files never have the program name in them */
if (find_file (sp, color_file_name (true, true), cfile)) {
found = true;
}
if (!found) {
if (find_file (sp, color_file_name (true, false), cfile)) {
found = true;
}
}
if (found) {
(void) load_color_file (cfile);
}
}
ColorsChanged ();
return 0;
}
int
UIConfiguration::store_color_theme ()
{
XMLNode* root;
LocaleGuard lg;
root = new XMLNode("Ardour");
XMLNode* parent = new XMLNode (X_("Colors"));
for (Colors::const_iterator i = colors.begin(); i != colors.end(); ++i) {
XMLNode* node = new XMLNode (X_("Color"));
node->add_property (X_("name"), i->first);
stringstream ss;
ss << "0x" << setw (8) << setfill ('0') << hex << i->second;
node->add_property (X_("value"), ss.str());
parent->add_child_nocopy (*node);
}
root->add_child_nocopy (*parent);
parent = new XMLNode (X_("ColorAliases"));
for (ColorAliases::const_iterator i = color_aliases.begin(); i != color_aliases.end(); ++i) {
XMLNode* node = new XMLNode (X_("ColorAlias"));
node->add_property (X_("name"), i->first);
node->add_property (X_("alias"), i->second);
parent->add_child_nocopy (*node);
}
root->add_child_nocopy (*parent);
parent = new XMLNode (X_("Modifiers"));
for (Modifiers::const_iterator i = modifiers.begin(); i != modifiers.end(); ++i) {
XMLNode* node = new XMLNode (X_("Modifier"));
node->add_property (X_("name"), i->first);
node->add_property (X_("modifier"), i->second.to_string());
parent->add_child_nocopy (*node);
}
root->add_child_nocopy (*parent);
XMLTree tree;
std::string colorfile = Glib::build_filename (user_config_directory(), color_file_name (true, true));;
tree.set_root (root);
if (!tree.write (colorfile.c_str())){
error << string_compose (_("Color file %1 not saved"), colorfile) << endmsg;
return -1;
}
return 0;
}
int
UIConfiguration::load_state ()
{
LocaleGuard lg; // a single guard for all 3 configs
bool found = false;
std::string rcfile;
if (find_file (ardour_config_search_path(), default_ui_config_file_name, rcfile)) {
XMLTree tree;
found = true;
info << string_compose (_("Loading default ui configuration file %1"), rcfile) << endmsg;
if (!tree.read (rcfile.c_str())) {
error << string_compose(_("cannot read default ui configuration file \"%1\""), rcfile) << endmsg;
return -1;
}
if (set_state (*tree.root(), Stateful::loading_state_version)) {
error << string_compose(_("default ui configuration file \"%1\" not loaded successfully."), rcfile) << endmsg;
return -1;
}
}
if (find_file (ardour_config_search_path(), ui_config_file_name, rcfile)) {
XMLTree tree;
found = true;
info << string_compose (_("Loading user ui configuration file %1"), rcfile) << endmsg;
if (!tree.read (rcfile)) {
error << string_compose(_("cannot read ui configuration file \"%1\""), rcfile) << endmsg;
return -1;
}
if (set_state (*tree.root(), Stateful::loading_state_version)) {
error << string_compose(_("user ui configuration file \"%1\" not loaded successfully."), rcfile) << endmsg;
return -1;
}
_dirty = false;
}
if (!found) {
error << _("could not find any ui configuration file, canvas will look broken.") << endmsg;
}
return 0;
}
int
UIConfiguration::save_state()
{
if (block_save != 0) {
return -1;
}
if (_dirty) {
std::string rcfile = Glib::build_filename (user_config_directory(), ui_config_file_name);
XMLTree tree;
tree.set_root (&get_state());
if (!tree.write (rcfile.c_str())){
error << string_compose (_("Config file %1 not saved"), rcfile) << endmsg;
return -1;
}
_dirty = false;
}
if (aliases_modified || colors_modified || modifiers_modified) {
if (store_color_theme ()) {
error << string_compose (_("Color file %1 not saved"), color_file.get()) << endmsg;
return -1;
}
aliases_modified = false;
colors_modified = false;
modifiers_modified = false;
}
return 0;
}
XMLNode&
UIConfiguration::get_state ()
{
XMLNode* root;
LocaleGuard lg;
root = new XMLNode("Ardour");
root->add_child_nocopy (get_variables ("UI"));
root->add_child_nocopy (get_variables ("Canvas"));
if (_extra_xml) {
root->add_child_copy (*_extra_xml);
}
return *root;
}
XMLNode&
UIConfiguration::get_variables (std::string which_node)
{
XMLNode* node;
LocaleGuard lg;
node = new XMLNode (which_node);
#undef UI_CONFIG_VARIABLE
#undef CANVAS_FONT_VARIABLE
#define UI_CONFIG_VARIABLE(Type,var,Name,value) if (node->name() == "UI") { var.add_to_node (*node); }
#define CANVAS_FONT_VARIABLE(var,Name) if (node->name() == "Canvas") { var.add_to_node (*node); }
#include "ui_config_vars.h"
#include "canvas_vars.h"
#undef UI_CONFIG_VARIABLE
#undef CANVAS_FONT_VARIABLE
return *node;
}
int
UIConfiguration::set_state (const XMLNode& root, int /*version*/)
{
LocaleGuard lg;
/* this can load a generic UI configuration file or a colors file */
if (root.name() != "Ardour") {
return -1;
}
Stateful::save_extra_xml (root);
XMLNodeList nlist = root.children();
XMLNodeConstIterator niter;
XMLNode *node;
for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
node = *niter;
if (node->name() == "Canvas" || node->name() == "UI") {
set_variables (*node);
}
}
XMLNode* colors = find_named_node (root, X_("Colors"));
if (colors) {
load_colors (*colors);
}
XMLNode* aliases = find_named_node (root, X_("ColorAliases"));
if (aliases) {
load_color_aliases (*aliases);
}
XMLNode* modifiers = find_named_node (root, X_("Modifiers"));
if (modifiers) {
load_modifiers (*modifiers);
}
return 0;
}
void
UIConfiguration::load_color_aliases (XMLNode const & node)
{
XMLNodeList const nlist = node.children();
XMLNodeConstIterator niter;
XMLProperty const *name;
XMLProperty const *alias;
for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
XMLNode const * child = *niter;
if (child->name() != X_("ColorAlias")) {
continue;
}
name = child->property (X_("name"));
alias = child->property (X_("alias"));
if (name && alias) {
color_aliases[name->value()] = alias->value();
}
}
}
void
UIConfiguration::load_colors (XMLNode const & node)
{
XMLNodeList const nlist = node.children();
XMLNodeConstIterator niter;
XMLProperty const *name;
XMLProperty const *color;
/* don't clear colors, so that we can load > 1 color file and have
the subsequent ones overwrite the later ones.
*/
for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
XMLNode const * child = *niter;
if (child->name() != X_("Color")) {
continue;
}
name = child->property (X_("name"));
color = child->property (X_("value"));
if (name && color) {
ArdourCanvas::Color c;
c = strtoul (color->value().c_str(), 0, 16);
/* insert or replace color name definition */
colors[name->value()] = c;
}
}
}
void
UIConfiguration::load_modifiers (XMLNode const & node)
{
PBD::LocaleGuard lg;
XMLNodeList const nlist = node.children();
XMLNodeConstIterator niter;
XMLProperty const *name;
XMLProperty const *mod;
for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
XMLNode const * child = *niter;
if (child->name() != X_("Modifier")) {
continue;
}
name = child->property (X_("name"));
mod = child->property (X_("modifier"));
if (name && mod) {
SVAModifier svam (mod->value());
modifiers[name->value()] = svam;
}
}
}
void
UIConfiguration::set_variables (const XMLNode& node)
{
#undef UI_CONFIG_VARIABLE
#define UI_CONFIG_VARIABLE(Type,var,name,val) if (var.set_from_node (node)) { ParameterChanged (name); }
#define CANVAS_FONT_VARIABLE(var,name) if (var.set_from_node (node)) { ParameterChanged (name); }
#include "ui_config_vars.h"
#include "canvas_vars.h"
#undef UI_CONFIG_VARIABLE
#undef CANVAS_FONT_VARIABLE
}
ArdourCanvas::SVAModifier
UIConfiguration::modifier (string const & name) const
{
Modifiers::const_iterator m = modifiers.find (name);
if (m != modifiers.end()) {
return m->second;
}
return SVAModifier ();
}
ArdourCanvas::Color
UIConfiguration::color_mod (std::string const & colorname, std::string const & modifiername) const
{
return HSV (color (colorname)).mod (modifier (modifiername)).color ();
}
ArdourCanvas::Color
UIConfiguration::color_mod (const ArdourCanvas::Color& color, std::string const & modifiername) const
{
return HSV (color).mod (modifier (modifiername)).color ();
}
ArdourCanvas::Color
UIConfiguration::color (const std::string& name, bool* failed) const
{
ColorAliases::const_iterator e = color_aliases.find (name);
if (failed) {
*failed = false;
}
if (e != color_aliases.end ()) {
Colors::const_iterator rc = colors.find (e->second);
if (rc != colors.end()) {
return rc->second;
}
} else {
/* not an alias, try directly */
Colors::const_iterator rc = colors.find (name);
if (rc != colors.end()) {
return rc->second;
}
}
if (!failed) {
/* only show this message if the caller wasn't interested in
the fail status.
*/
cerr << string_compose (_("Color %1 not found"), name) << endl;
}
if (failed) {
*failed = true;
}
return rgba_to_color ((g_random_int()%256)/255.0,
(g_random_int()%256)/255.0,
(g_random_int()%256)/255.0,
0xff);
}
Color
UIConfiguration::quantized (Color c) const
{
HSV hsv (c);
hsv.h = hue_width * (round (hsv.h/hue_width));
return hsv.color ();
}
void
UIConfiguration::set_color (string const& name, ArdourCanvas::Color color)
{
Colors::iterator i = colors.find (name);
if (i == colors.end()) {
return;
}
i->second = color;
colors_modified = true;
ColorsChanged (); /* EMIT SIGNAL */
}
void
UIConfiguration::set_alias (string const & name, string const & alias)
{
ColorAliases::iterator i = color_aliases.find (name);
if (i == color_aliases.end()) {
return;
}
i->second = alias;
aliases_modified = true;
ColorsChanged (); /* EMIT SIGNAL */
}
void
UIConfiguration::set_modifier (string const & name, SVAModifier svam)
{
Modifiers::iterator m = modifiers.find (name);
if (m == modifiers.end()) {
return;
}
m->second = svam;
modifiers_modified = true;
ColorsChanged (); /* EMIT SIGNAL */
}
void
UIConfiguration::load_rc_file (bool themechange, bool allow_own)
{
string basename = ui_rc_file.get();
std::string rc_file_path;
if (!find_file (ardour_config_search_path(), basename, rc_file_path)) {
warning << string_compose (_("Unable to find UI style file %1 in search path %2. %3 will look strange"),
basename, ardour_config_search_path().to_string(), PROGRAM_NAME)
<< endmsg;
return;
}
info << "Loading ui configuration file " << rc_file_path << endmsg;
Gtkmm2ext::UI::instance()->load_rcfile (rc_file_path, themechange);
}
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