Move ARDOUR_UI::ui_scale into UIConfiguration class

[ardour.git] / gtk2_ardour / ui_config.cc

diff --git a/gtk2_ardour/ui_config.cc b/gtk2_ardour/ui_config.cc
index e1aba7d524259cb285982ed0ae25a0a9df6a79f7..cc8a737cd9434d75d28ee963b88f00fd8c370acc 100644 (file)
--- a/gtk2_ardour/ui_config.cc
+++ b/gtk2_ardour/ui_config.cc
@@ -17,19 +17,31 @@
 
 */
 
+#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 <glib/gstdio.h>
 
+#include <gtkmm/settings.h>
+
 #include "pbd/convert.h"
 #include "pbd/failed_constructor.h"
 #include "pbd/xml++.h"
 #include "pbd/file_utils.h"
+#include "pbd/locale_guard.h"
 #include "pbd/error.h"
 #include "pbd/stacktrace.h"
 
@@ -37,9 +49,8 @@
 #include "gtkmm2ext/gtk_ui.h"
 
 #include "ardour/filesystem_paths.h"
+#include "ardour/utils.h"
 
-#include "ardour_ui.h"
-#include "global_signals.h"
 #include "ui_config.h"
 
 #include "i18n.h"
@@ -55,6 +66,10 @@ UIConfiguration* UIConfiguration::_instance = 0;
 
 static const double hue_width = 18.0;
 
+sigc::signal<void>  UIConfiguration::ColorsChanged;
+
+sigc::signal<void>  UIConfiguration::DPIReset;
+
 UIConfiguration::UIConfiguration ()
        :
 #undef  UI_CONFIG_VARIABLE
@@ -75,13 +90,9 @@ UIConfiguration::UIConfiguration ()
 
        load_state();
 
-       ARDOUR_UI_UTILS::ColorsChanged.connect (boost::bind (&UIConfiguration::colors_changed, this));
+       ColorsChanged.connect (boost::bind (&UIConfiguration::colors_changed, this));
 
        ParameterChanged.connect (sigc::mem_fun (*this, &UIConfiguration::parameter_changed));
-
-       /* force GTK theme setting, so that loading an RC file will work */
-       
-       load_color_theme ();
 }
 
 UIConfiguration::~UIConfiguration ()
@@ -129,7 +140,6 @@ UIConfiguration::reset_gtk_theme ()
        for (ColorAliases::iterator g = color_aliases.begin(); g != color_aliases.end(); ++g) {
                
                if (g->first.find ("gtk_") == 0) {
-                       ColorAliases::const_iterator a = color_aliases.find (g->first);
                        const string gtk_name = g->first.substr (4);
                        ss << gtk_name << ":#" << std::setw (6) << setfill ('0') << (color (g->second) >> 8) << ';';
                }
@@ -141,7 +151,41 @@ UIConfiguration::reset_gtk_theme ()
 
        Gtk::Settings::get_default()->property_gtk_color_scheme() = ss.str();
 }
-       
+
+void
+UIConfiguration::reset_dpi ()
+{
+       long val = get_font_scale();
+       set_pango_fontsize ();
+       /* Xft rendering */
+
+       gtk_settings_set_long_property (gtk_settings_get_default(),
+                                       "gtk-xft-dpi", val, "ardour");
+       DPIReset(); //Emit Signal
+}
+
+void
+UIConfiguration::set_pango_fontsize ()
+{
+       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);
+}
+
+float
+UIConfiguration::get_ui_scale ()
+{
+       return get_font_scale () / 102400.;
+}
+
 void
 UIConfiguration::map_parameters (boost::function<void (std::string)>& functor)
 {
@@ -151,6 +195,29 @@ UIConfiguration::map_parameters (boost::function<void (std::string)>& functor)
 #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 ();
+       return this;
+}
+
 int
 UIConfiguration::load_defaults ()
 {
@@ -177,13 +244,14 @@ UIConfiguration::load_defaults ()
                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);
-               ARDOUR_UI_UTILS::ColorsChanged (); /* EMIT SIGNAL */
+               ColorsChanged (); /* EMIT SIGNAL */
        }
 
-       return 0;
+       return ret;
 }
 
 int
@@ -228,7 +296,7 @@ UIConfiguration::load_color_theme (bool allow_own)
                        return -1;
                }
 
-               ARDOUR_UI_UTILS::ColorsChanged ();
+               ColorsChanged ();
        } else {
                warning << string_compose (_("Color file %1 not found"), basename) << endmsg;
        }
@@ -240,7 +308,7 @@ int
 UIConfiguration::store_color_theme ()
 {
        XMLNode* root;
-       LocaleGuard lg (X_("POSIX"));
+       LocaleGuard lg (X_("C"));
 
        root = new XMLNode("Ardour");
 
@@ -375,7 +443,7 @@ XMLNode&
 UIConfiguration::get_state ()
 {
        XMLNode* root;
-       LocaleGuard lg (X_("POSIX"));
+       LocaleGuard lg (X_("C"));
 
        root = new XMLNode("Ardour");
 
@@ -393,7 +461,7 @@ XMLNode&
 UIConfiguration::get_variables (std::string which_node)
 {
        XMLNode* node;
-       LocaleGuard lg (X_("POSIX"));
+       LocaleGuard lg (X_("C"));
 
        node = new XMLNode (which_node);
 
@@ -497,7 +565,7 @@ UIConfiguration::load_colors (XMLNode const & node)
 
                if (name && color) {
                        ArdourCanvas::Color c;
-                       c = strtol (color->value().c_str(), 0, 16);
+                       c = strtoul (color->value().c_str(), 0, 16);
                        colors.insert (make_pair (name->value(), c));
                }
        }
@@ -506,7 +574,7 @@ UIConfiguration::load_colors (XMLNode const & node)
 void
 UIConfiguration::load_modifiers (XMLNode const & node)
 {
-       PBD::LocaleGuard lg ("POSIX");
+       PBD::LocaleGuard lg ("C");
        XMLNodeList const nlist = node.children();
        XMLNodeConstIterator niter;
        XMLProperty const *name;
@@ -557,6 +625,12 @@ UIConfiguration::color_mod (std::string const & colorname, std::string const & m
        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
 {
@@ -614,7 +688,7 @@ UIConfiguration::set_color (string const& name, ArdourCanvas::Color color)
        i->second = color;
        colors_modified = true;
 
-       ARDOUR_UI_UTILS::ColorsChanged (); /* EMIT SIGNAL */
+       ColorsChanged (); /* EMIT SIGNAL */
 }
 
 void
@@ -628,7 +702,7 @@ UIConfiguration::set_alias (string const & name, string const & alias)
        i->second = alias;
        aliases_modified = true;
 
-       ARDOUR_UI_UTILS::ColorsChanged (); /* EMIT SIGNAL */
+       ColorsChanged (); /* EMIT SIGNAL */
 }
 
 void
@@ -643,7 +717,7 @@ UIConfiguration::set_modifier (string const & name, SVAModifier svam)
        m->second = svam;
        modifiers_modified = true;
 
-       ARDOUR_UI_UTILS::ColorsChanged (); /* EMIT SIGNAL */
+       ColorsChanged (); /* EMIT SIGNAL */
 }
 
 void