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authorMihai Moldovan <ionic@ionic.de>2022-12-06 05:10:29 +0100
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2023-02-06 08:30:01 +0100
commit33d2f8d0461314c5eeaab2c74b10b545906e1491 (patch)
treeb550428b5d03ff49f8f9b8dab514d63dd64c9766 /src
parent131bcb9889b9eb9b8eeb895f23ae1d53a25aefe8 (diff)
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misc src/: completely rework high contrast mode, add stub for big font mode.
This is a work-in-progress. The reworked high contrast mode adds support for a configurable high contrast GTK theme and changes a lot of widgets to change their color. The big font mode is a stub currently.
Diffstat (limited to 'src')
-rw-r--r--src/arctica-greeter.vala110
-rw-r--r--src/dash-box.vala19
-rw-r--r--src/main-window.vala5
-rw-r--r--src/menubar.vala182
-rw-r--r--src/prompt-box.vala188
-rw-r--r--src/settings.vala60
-rw-r--r--src/toggle-box.vala39
-rw-r--r--src/user-list.vala6
8 files changed, 574 insertions, 35 deletions
diff --git a/src/arctica-greeter.vala b/src/arctica-greeter.vala
index 013739c..6d31a9b 100644
--- a/src/arctica-greeter.vala
+++ b/src/arctica-greeter.vala
@@ -306,6 +306,47 @@ public class ArcticaGreeter : Object
Canberra.PROP_EVENT_ID,
"system-ready");
+ /* Synchronize properties in AGSettings once. */
+ var agsettings = new AGSettings ();
+ agsettings.high_contrast = !(!(agsettings.high_contrast));
+ agsettings.big_font = !(!(agsettings.big_font));
+
+ /*
+ * Add timeouts to process the full node hierarchy to handle a11y
+ * changes.
+ *
+ * That's the easiest way to handle a changing node hierarchy.
+ *
+ * Alternatives would involve connecting a function for every a11y
+ * change to the GtkWidget::parent-set event to *every widget* we
+ * create, but that would make the code incredibly messy.
+ *
+ * The value has been determined by a fair dice roll and should make
+ * sure that changes are visible almost instantaneously to users.
+ */
+ Timeout.add_full (GLib.Priority.HIGH_IDLE, 302, () => {
+ var agsettings_intimer = new AGSettings ();
+ /*
+ if (0 == GLib.Random.int_range (0, 10)) {
+ debug ("Syncing up high contrast value via timer: %s", agsettings_intimer.high_contrast.to_string ());
+ }
+ */
+ switch_contrast (agsettings_intimer.high_contrast);
+
+ return true;
+ });
+ Timeout.add_full (GLib.Priority.HIGH_IDLE, 302, () => {
+ var agsettings_intimer = new AGSettings ();
+ /*
+ if (0 == GLib.Random.int_range (0, 10)) {
+ debug ("Syncing up big font value via timer: %s", agsettings_intimer.big_font.to_string ());
+ }
+ */
+ switch_font (agsettings_intimer.big_font);
+
+ return true;
+ });
+
return false;
}
@@ -419,6 +460,75 @@ public class ArcticaGreeter : Object
return greeter.has_guest_account_hint;
}
+ private delegate void SwitchClassType (Gtk.Widget widget, string classname, bool enable);
+
+ private delegate void IterateChildrenType (Gtk.Widget widget);
+
+ private void switch_generic (Gtk.Widget widget, string classname, bool enable)
+ {
+ var style_ctx = widget.get_style_context ();
+ if (enable)
+ {
+ style_ctx.add_class (classname);
+ }
+ else
+ {
+ style_ctx.remove_class (classname);
+ }
+ }
+
+ private void iterate_children_generic (Gtk.Widget widget, SwitchClassType switch_func, string classname, bool enable)
+ {
+ /*
+ * GTK 4 changed its API quite dramatically, got rid of GtkContainer
+ * and made each GtkWidget accept children, while also defining a new
+ * way to access those.
+ */
+ IterateChildrenType rec_func = null;
+ rec_func = (widget) => {
+#if HAVE_GTK_4_0
+ Gtk.Widget child = widget.get_first_child ();
+ while (null != child)
+ {
+ rec_func (child);
+ child = child.get_next_sibling ();
+ }
+#else
+ if (gtk_is_container (widget))
+ {
+ ((Gtk.Container)(widget)).@foreach (rec_func);
+ }
+#endif
+
+ /* Common code to add or remove the CSS class. */
+ switch_func (widget, classname, enable);
+ };
+
+ /*
+ * Actually recursively iterate through this item and all of its
+ * children.
+ */
+ rec_func (widget);
+ }
+
+ public void switch_contrast (bool high)
+ {
+ var time_pre = GLib.get_monotonic_time ();
+ iterate_children_generic (main_window, switch_generic, "high_contrast", high);
+ var time_post = GLib.get_monotonic_time ();
+ var time_diff = time_post - time_pre;
+ assert (0 <= time_diff);
+ var time_diff_sec = time_diff / 1000000;
+ var time_diff_msec = time_diff / 1000;
+ var time_diff_usec = time_diff % 1000000;
+ // debug ("Time passed: %" + int64.FORMAT + " s, %" + int64.FORMAT + " ms, %" + int64.FORMAT + " us", time_diff_sec, time_diff_msec, time_diff_usec);
+ }
+
+ public void switch_font (bool big)
+ {
+ iterate_children_generic (main_window, switch_generic, "big_font", big);
+ }
+
private Gdk.FilterReturn focus_upon_map (Gdk.XEvent gxevent, Gdk.Event event)
{
var xevent = (X.Event*)gxevent;
diff --git a/src/dash-box.vala b/src/dash-box.vala
index d8fe6fd..1073aa5 100644
--- a/src/dash-box.vala
+++ b/src/dash-box.vala
@@ -221,10 +221,25 @@ public class DashBox : Gtk.Box
CairoUtils.rounded_rectangle (c, 0, box_y, box_w, box_h, box_r);
- c.set_source_rgba (0.1, 0.1, 0.1, 0.4);
+ var agsettings = new AGSettings ();
+ if (agsettings.high_contrast)
+ {
+ c.set_source_rgba (1.0, 1.0, 1.0, 1.0);
+ }
+ else
+ {
+ c.set_source_rgba (0.1, 0.1, 0.1, 0.4);
+ }
c.fill_preserve ();
- c.set_source_rgba (0.4, 0.4, 0.4, 0.4);
+ if (agsettings.high_contrast)
+ {
+ c.set_source_rgba (0.0, 0.0, 0.0, 1.0);
+ }
+ else
+ {
+ c.set_source_rgba (0.4, 0.4, 0.4, 0.4);
+ }
c.set_line_width (1);
c.stroke ();
diff --git a/src/main-window.vala b/src/main-window.vala
index 172c6f4..d7fe6f0 100644
--- a/src/main-window.vala
+++ b/src/main-window.vala
@@ -40,7 +40,7 @@ public class MainWindow : Gtk.Window
public ListStack stack;
// Menubar is smaller, but with shadow, we reserve more space
- public const int MENUBAR_HEIGHT = 32;
+ public const int MENUBAR_HEIGHT = 40;
construct
{
@@ -75,6 +75,8 @@ public class MainWindow : Gtk.Window
shadow_style = "background-image: url('%s');
background-repeat: repeat;".printf(shadow_path);
}
+ /* Disable the shadow image, we will use CSS instead. */
+ /*
try
{
var style = new Gtk.CssProvider ();
@@ -89,6 +91,7 @@ public class MainWindow : Gtk.Window
{
debug ("Internal error loading menubox style: %s", e.message);
}
+ */
menubox.set_size_request (-1, MENUBAR_HEIGHT);
menubox.show ();
menualign.show ();
diff --git a/src/menubar.vala b/src/menubar.vala
index 3f9f72c..8915530 100644
--- a/src/menubar.vala
+++ b/src/menubar.vala
@@ -68,7 +68,6 @@ private class IndicatorMenuItem : Gtk.MenuItem
public class MenuBar : Gtk.MenuBar
{
public Background? background { get; construct; default = null; }
- public bool high_contrast { get; private set; default = false; }
public Gtk.Window? keyboard_window { get; private set; default = null; }
public Gtk.AccelGroup? accel_group { get; construct; }
@@ -83,16 +82,57 @@ public class MenuBar : Gtk.MenuBar
{
if (background != null)
{
+ /* Disable background drawing to see how it changes the visuals. */
+ /*
int x, y;
background.translate_coordinates (this, 0, 0, out x, out y);
c.save ();
c.translate (x, y);
background.draw_full (c, Background.DrawFlags.NONE);
c.restore ();
+ */
}
- c.set_source_rgb (0.1, 0.1, 0.1);
- c.paint_with_alpha (0.4);
+ /* Get the style and dimensions. */
+ var style_ctx = this.get_style_context ();
+
+ var w = this.get_allocated_width ();
+ var h = this.get_allocated_height ();
+
+ /* Add a group. */
+ c.push_group ();
+
+ /* Draw the background normally. */
+ style_ctx.render_background (c, 0, 0, w, h);
+
+ /* Draw the frame normally. */
+ style_ctx.render_frame (c, 0, 0, w, h);
+
+ /* Go back to the original widget. */
+ c.pop_group_to_source ();
+
+ var agsettings = new AGSettings ();
+ if (agsettings.high_contrast) {
+ /*
+ * In case the high contrast mode is enabled, do not add any
+ * transparency. While the GTK theme might define one (even though
+ * it better should not, given that we are also switching to a
+ * high contrast theme), we certainly do not want to make the look
+ * fuzzy.
+ */
+ c.paint ();
+ }
+ else {
+ /*
+ * And finally repaint it with additional transparency.
+ * Note that most GTK styles already define a transparency for OSD
+ * menus. We want to have something more transparent, but also
+ * make sure that it is not too transparent, so do not choose a
+ * value that is too low here - certainly not your desired final
+ * alpha value.
+ */
+ c.paint_with_alpha (AGSettings.get_double (AGSettings.KEY_MENUBAR_ALPHA));
+ }
foreach (var child in get_children ())
{
@@ -102,6 +142,16 @@ public class MenuBar : Gtk.MenuBar
return false;
}
+ public static void add_style_class (Gtk.Widget widget)
+ {
+ /*
+ * Add style context class osd, which makes the widget respect the GTK
+ * style definitions for this type of elements.
+ */
+ var ctx = widget.get_style_context ();
+ ctx.add_class ("osd");
+ }
+
/* Due to LP #973922 the keyboard has to be loaded after the main window
* is shown and given focus. Therefore we don't enable the active state
* until now.
@@ -113,33 +163,110 @@ public class MenuBar : Gtk.MenuBar
onscreen_keyboard_item.set_active (AGSettings.get_boolean (AGSettings.KEY_ONSCREEN_KEYBOARD));
}
- private string default_theme_name;
private List<Indicator.Object> indicator_objects;
private Gtk.CheckMenuItem high_contrast_item;
+ private Gtk.CheckMenuItem big_font_item;
private Pid keyboard_pid = 0;
private Pid reader_pid = 0;
private Gtk.CheckMenuItem onscreen_keyboard_item;
construct
{
- Gtk.Settings.get_default ().get ("gtk-theme-name", out default_theme_name);
+ add_style_class (this);
+
+ /* Add shadow. */
+ var shadow_style = new Gtk.CssProvider ();
+ shadow_style.load_from_data ("* { box-shadow: 0px 0px 5px 5px #000000; }", -1);
+ this.get_style_context ().add_provider (shadow_style,
+ Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
pack_direction = Gtk.PackDirection.RTL;
if (AGSettings.get_boolean (AGSettings.KEY_SHOW_HOSTNAME))
{
- var label = new Gtk.Label (Posix.utsname ().nodename);
- label.show ();
- var hostname_item = new Gtk.MenuItem ();
- hostname_item.add (label);
- hostname_item.sensitive = false;
- hostname_item.right_justified = true;
- hostname_item.show ();
+ var hostname_item = new Gtk.MenuItem.with_label (Posix.utsname ().nodename);
append (hostname_item);
+ hostname_item.show ();
+
+ /*
+ * Even though this (menu) item is insensitive, we want its label
+ * text to have the sensitive color as to not look out of place
+ * and difficult to read.
+ *
+ * There's a really weird bug that leads to always fetch the
+ * sensitive color after the widget (menuitem in this case) has
+ * been set to insensitive once - at least in this constructor.
+ *
+ * I haven't found a way to fix that, or, for that matter, what is
+ * actually causing the issue. Even waiting on the main event loop
+ * until all events are processed didn't help.
+ *
+ * We'll work around this issue by fetching the color before
+ * setting the widget to insensitive and call it proper.
+ */
+ var insensitive_override_style = new Gtk.CssProvider ();
+
+ /*
+ * First, fetch the associated GtkStyleContext and save the state,
+ * we'll override the state later on.
+ */
+ var hostname_item_ctx = hostname_item.get_style_context ();
+ hostname_item_ctx.save ();
+
+ try {
+ /* Get the actual color. */
+ var sensitive_color = hostname_item_ctx.get_color (Gtk.StateFlags.NORMAL);
+ debug ("Directly fetched sensitive color: %s", sensitive_color.to_string ());
+
+ insensitive_override_style.load_from_data ("*:disabled { color: %s; }".printf(sensitive_color.to_string ()), -1);
+ }
+ catch (Error e)
+ {
+ debug ("Internal error loading hostname menu item text color: %s", e.message);
+ }
+ finally {
+ /*
+ * Restore the context, which we might have changed through the
+ * previous get_color () call.
+ */
+ hostname_item_ctx.restore ();
+ }
+
+ try {
+ /* And finally override the insensitive color. */
+ hostname_item_ctx.add_provider (insensitive_override_style,
+ Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
+
+ /*
+ * Just overriding the color for the Gtk.MenuItem widget
+ * doesn't help, we'll also apply it to the children.
+ *
+ * In theory, we could just use the get_child () method to
+ * fetch the only child we should ever have on that widget,
+ * namely a GtkAccelLabel, but that isn't future-proof enough,
+ * especially if that is ever extended into having a submenu.
+ *
+ * Thus, iterate over all children and override the style for
+ * all of them.
+ */
+ if (gtk_is_container (hostname_item)) {
+ var children = hostname_item.get_children ();
+ foreach (Gtk.Widget element in children) {
+ var child_ctx = element.get_style_context ();
+ debug ("Adding override style provider to child widget %s", element.name);
+ child_ctx.add_provider (insensitive_override_style,
+ Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
+ }
+ }
+ }
+ catch (Error e)
+ {
+ debug ("Internal error overriding hostname menu item text color: %s", e.message);
+ }
- /* Hack to get a label showing on the menubar */
- var fg = label.get_style_context ().get_color (Gtk.StateFlags.NORMAL);
- label.override_color (Gtk.StateFlags.INSENSITIVE, fg);
+ hostname_item.set_sensitive (false);
+
+ hostname_item.set_right_justified (true);
}
/* Prevent dragging the window by the menubar */
@@ -235,7 +362,15 @@ public class MenuBar : Gtk.MenuBar
high_contrast_item.add_accelerator ("activate", accel_group, Gdk.Key.h, Gdk.ModifierType.CONTROL_MASK, Gtk.AccelFlags.VISIBLE);
high_contrast_item.show ();
submenu.append (high_contrast_item);
- high_contrast_item.set_active (AGSettings.get_boolean (AGSettings.KEY_HIGH_CONTRAST));
+ var agsettings = new AGSettings ();
+ debug ("Initializing high contrast menu item to state %s", agsettings.high_contrast.to_string ());
+ high_contrast_item.set_active (agsettings.high_contrast);
+ big_font_item = new Gtk.CheckMenuItem.with_label (_("Big Font"));
+ big_font_item.toggled.connect (big_font_toggled_cb);
+ big_font_item.add_accelerator ("activate", accel_group, Gdk.Key.b, Gdk.ModifierType.CONTROL_MASK, Gtk.AccelFlags.VISIBLE);
+ big_font_item.show ();
+ submenu.append (big_font_item);
+ big_font_item.set_active (agsettings.big_font);
var item = new Gtk.CheckMenuItem.with_label (_("Screen Reader"));
item.toggled.connect (screen_reader_toggled_cb);
item.add_accelerator ("activate", accel_group, Gdk.Key.s, Gdk.ModifierType.SUPER_MASK | Gdk.ModifierType.MOD1_MASK, Gtk.AccelFlags.VISIBLE);
@@ -443,13 +578,14 @@ public class MenuBar : Gtk.MenuBar
private void high_contrast_toggled_cb (Gtk.CheckMenuItem item)
{
- var settings = Gtk.Settings.get_default ();
- if (item.active)
- settings.set ("gtk-theme-name", "HighContrastInverse");
- else
- settings.set ("gtk-theme-name", default_theme_name);
- high_contrast = item.active;
- AGSettings.set_boolean (AGSettings.KEY_HIGH_CONTRAST, high_contrast);
+ var agsettings = new AGSettings ();
+ agsettings.high_contrast = item.active;
+ }
+
+ private void big_font_toggled_cb (Gtk.CheckMenuItem item)
+ {
+ var agsettings = new AGSettings ();
+ agsettings.big_font = item.active;
}
private void screen_reader_toggled_cb (Gtk.CheckMenuItem item)
diff --git a/src/prompt-box.vala b/src/prompt-box.vala
index 1a0007f..2180c70 100644
--- a/src/prompt-box.vala
+++ b/src/prompt-box.vala
@@ -208,7 +208,21 @@ public class PromptBox : FadableBox
debug ("Internal error loading font style (%s, %dpt): %s", font_family, font_size+2, e.message);
}
- name_label.override_color (Gtk.StateFlags.NORMAL, { 1.0f, 1.0f, 1.0f, 1.0f });
+ var agsettings = new AGSettings ();
+ try
+ {
+ var color_provider = new Gtk.CssProvider ();
+ var css = "* { color: rgba(255, 255, 255, 1.0); }\n" +
+ ".high_contrast { color: rgba (0, 0, 0, 1.0); }";
+ color_provider.load_from_data (css, -1);
+ style_ctx.add_provider (color_provider,
+ Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
+ }
+ catch (Error e)
+ {
+ debug ("Internal error setting color on name label: %s", e.message);
+ }
+
name_label.valign = Gtk.Align.START;
name_label.vexpand = true;
name_label.yalign = 0.5f;
@@ -236,7 +250,40 @@ public class PromptBox : FadableBox
name_grid.attach (align, COL_NAME_MESSAGE, ROW_NAME, 1, 1);
option_button = new FlatButton ();
- option_button.get_style_context ().add_class ("option-button");
+ var option_button_ctx = option_button.get_style_context ();
+ option_button_ctx.add_class ("option-button");
+
+ try {
+ /*
+ * Override background for both high-contrast and normal modes.
+ * Note that we have to use CSS selectors here, since this code
+ * is only executed once.
+ */
+ var background_style = new Gtk.CssProvider ();
+ background_style.load_from_data ("button.flat.option-button.high_contrast {\n" +
+ " background-color: %s;\n".printf("rgba(0,0,0,1.0)") +
+ " background-image: none;\n" +
+ "}\n" +
+ "button.flat.option-button:hover:not(.high_contrast), " +
+ "button.flat.option-button:active:not(.high_contrast), " +
+ "button.flat.option-button:hover:active:not(.high_contrast) {\n"+
+ " background-color: %s;\n".printf("rgba(255,255,255,0.5)")+
+ " background-image: none;"+
+ "}\n" +
+ "button.flat.option-button:hover.high_contrast," +
+ "button.flat.option-button:active.high_contrast," +
+ "button.flat.option-button:hover:active.high_contrast {\n" +
+ " background-color:%s;\n".printf("rgba(70, 70, 70, 1.0)") +
+ " background-image: none;" +
+ "}\n", -1);
+ option_button_ctx.add_provider (background_style,
+ Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
+ }
+ catch (Error e)
+ {
+ debug ("Internal error loading option button background style: %s", e.message);
+ }
+
option_button.hexpand = true;
option_button.halign = Gtk.Align.END;
option_button.valign = Gtk.Align.START;
@@ -388,6 +435,7 @@ public class PromptBox : FadableBox
public void clear ()
{
prompt_visibility = PromptVisibility.HIDDEN;
+ active_indicator.expanded = false;
/* Hold a ref while removing the prompt widgets -
* if we just do w.destroy() we get this warning:
@@ -452,6 +500,7 @@ public class PromptBox : FadableBox
{
case PromptVisibility.HIDDEN:
w.hide ();
+ active_indicator.expanded = false;
break;
case PromptVisibility.FADING:
var f = w as Fadable;
@@ -460,10 +509,12 @@ public class PromptBox : FadableBox
f.fade_in ();
else
w.show ();
+ active_indicator.expanded = true;
break;
case PromptVisibility.SHOWN:
w.show ();
w.sensitive = true;
+ active_indicator.expanded = true;
break;
}
}
@@ -473,6 +524,7 @@ public class PromptBox : FadableBox
prompt_visibility = PromptVisibility.FADING;
show ();
foreach_prompt_widget ((w) => { update_prompt_visibility (w); });
+ active_indicator.expanded = true;
}
public void show_prompts ()
@@ -480,6 +532,7 @@ public class PromptBox : FadableBox
prompt_visibility = PromptVisibility.SHOWN;
show ();
foreach_prompt_widget ((w) => { update_prompt_visibility (w); });
+ active_indicator.expanded = true;
}
protected void attach_item (Gtk.Widget w, bool add_style_class = true)
@@ -713,6 +766,7 @@ public class PromptBox : FadableBox
private class ActiveIndicator : Gtk.Image
{
public bool active { get; set; }
+ public bool expanded { get; set; }
public const int WIDTH = 8;
public const int HEIGHT = 7;
@@ -722,12 +776,16 @@ private class ActiveIndicator : Gtk.Image
try
{
pixbuf = new Gdk.Pixbuf.from_file (filename);
+ pixbuf_changed_helper ();
}
catch (Error e)
{
debug ("Could not load active image: %s", e.message);
}
notify["active"].connect (() => { queue_draw (); });
+ notify["expanded"].connect (() => { notify_expanded (); });
+ notify["pixbuf"].connect ((s, p) => { notify_pixbuf_changed (s, p); });
+ this.style_updated.connect ((w) => { handle_style_updated (w); });
xalign = 0.0f;
}
@@ -747,6 +805,132 @@ private class ActiveIndicator : Gtk.Image
{
if (!active)
return false;
+
return base.draw (c);
}
+
+ private void notify_pixbuf_changed (Object src, ParamSpec prop) {
+ assert ("pixbuf" == prop.name);
+
+ if (!(this.swapping_)) {
+ pixbuf_changed_helper ();
+ }
+ }
+
+ private void pixbuf_changed_helper () {
+ /* Copy the new pixbuf. */
+ this.pixbuf_orig_ = this.pixbuf.copy ();
+ this.pixbuf.copy_options (this.pixbuf_orig_);
+ this.pixbuf_inverted_ = this.pixbuf.copy ();
+ this.pixbuf.copy_options (this.pixbuf_inverted_);
+
+ /* Invert the new pixbuf. */
+ invert_pixbuf ();
+
+ if (this.inverted_) {
+ this.swapping_ = true;
+ this.pixbuf = this.pixbuf_inverted_;
+ this.swapping_ = false;
+ }
+ }
+
+ private void handle_style_updated (Gtk.Widget widget) {
+ var style_ctx = this.get_style_context ();
+ if (style_ctx.has_class ("high_contrast")) {
+ if ((!(this.inverted_)) && (this.expanded)) {
+ this.swapping_ = true;
+ this.pixbuf = this.pixbuf_inverted_;
+ this.inverted_ = true;
+ this.swapping_ = false;
+ }
+ }
+ else {
+ if (this.inverted_) {
+ this.swapping_ = true;
+ this.pixbuf = this.pixbuf_orig_;
+ this.inverted_ = false;
+ this.swapping_ = false;
+ }
+ }
+ }
+
+ private void invert_pixbuf () {
+ assert (Gdk.Colorspace.RGB == this.pixbuf_inverted_.get_colorspace ());
+ var sample_size = this.pixbuf_inverted_.get_bits_per_sample ();
+ var alpha = this.pixbuf_inverted_.get_has_alpha ();
+ var channels = this.pixbuf_inverted_.get_n_channels ();
+
+ assert (((4 == channels) && (alpha)) ||
+ (3 == channels));
+
+ /*
+ * Fun fact: we don't need to decompose the actual colors. Since
+ * the inversion is just a simple XOR operation, we can just
+ * invert all the bits minus the alpha value.
+ */
+ assert (1 <= sample_size);
+
+ var rowstride = this.pixbuf_inverted_.get_rowstride ();
+ var col_bytes = (((channels * sample_size) + 7) / 8);
+ var row_bytes = (this.pixbuf_inverted_.width * col_bytes);
+ unowned var pixels = this.pixbuf_inverted_.get_pixels ();
+ assert (pixels != null);
+ size_t color_bits = channels;
+ if (alpha) {
+ --color_bits;
+ }
+ color_bits *= sample_size;
+ for (size_t i = 0; i < this.pixbuf_inverted_.height; (++i)) {
+ for (size_t y = 0; y < this.pixbuf_inverted_.width; (++y)) {
+ /* Invert full bytes first. */
+ for (size_t x = 0; x < (color_bits / 8); (++(x))) {
+ pixels[(i * rowstride) + (y * col_bytes) + (x)] ^= (~(0));
+ }
+
+ /*
+ * And now, invert the last actual color bits minus alpha
+ * and padding.
+ */
+ uint8 rest = (uint8) (color_bits % 8);
+ if (0 < rest) {
+ uint8 mask = (~(0));
+ mask <<= (8 - rest);
+ pixels[(i * rowstride) + (y * col_bytes) + (color_bits / 8)] ^= mask;
+ }
+ }
+ }
+ }
+
+ private void notify_expanded () {
+ if (!(this.expanded)) {
+ /*
+ * In non-expanded form, we always want to have the original
+ * look.
+ */
+ if (this.inverted_) {
+ this.swapping_ = true;
+ this.pixbuf = this.pixbuf_orig_;
+ this.inverted_ = false;
+ this.swapping_ = false;
+ }
+ }
+ else {
+ /*
+ * In expanded form, we want to restore the inverted form iff the
+ * high contrast mode is enabled.
+ */
+ var agsettings = new AGSettings ();
+ if ((!(this.inverted_)) && (agsettings.high_contrast)) {
+ this.swapping_ = true;
+ this.pixbuf = this.pixbuf_inverted_;
+ this.inverted_ = true;
+ this.swapping_ = false;
+ }
+ }
+ }
+
+ private bool inverted_ = false;
+ private bool swapping_ = false;
+ private Gdk.Pixbuf? pixbuf_orig_ = null;
+ private Gdk.Pixbuf? pixbuf_inverted_ = null;
}
diff --git a/src/settings.vala b/src/settings.vala
index 3c50bbc..af753ce 100644
--- a/src/settings.vala
+++ b/src/settings.vala
@@ -31,6 +31,7 @@ public class AGSettings : Object
public const string KEY_SHOW_HOSTNAME = "show-hostname";
public const string KEY_LOGO = "logo";
public const string KEY_THEME_NAME = "theme-name";
+ public const string KEY_HIGH_CONTRAST_THEME_NAME = "high-contrast-theme-name";
public const string KEY_ICON_THEME_NAME = "icon-theme-name";
public const string KEY_FONT_NAME = "font-name";
public const string KEY_XFT_ANTIALIAS = "xft-antialias";
@@ -39,6 +40,7 @@ public class AGSettings : Object
public const string KEY_XFT_RGBA = "xft-rgba";
public const string KEY_ONSCREEN_KEYBOARD = "onscreen-keyboard";
public const string KEY_HIGH_CONTRAST = "high-contrast";
+ public const string KEY_BIG_FONT = "big-font";
public const string KEY_SCREEN_READER = "screen-reader";
public const string KEY_PLAY_READY_SOUND = "play-ready-sound";
public const string KEY_INDICATORS = "indicators";
@@ -51,6 +53,8 @@ public class AGSettings : Object
public const string KEY_TOGGLEBOX_FONT_FGCOLOR = "togglebox-font-fgcolor";
public const string KEY_TOGGLEBOX_BUTTON_BGCOLOR = "togglebox-button-bgcolor";
public const string KEY_ENABLE_HIDPI = "enable-hidpi";
+ public const string KEY_MENUBAR_ALPHA = "menubar-alpha";
+
public static bool get_boolean (string key)
{
@@ -112,7 +116,63 @@ public class AGSettings : Object
}
construct {
+ Gtk.Settings.get_default ().get ("gtk-theme-name", out this.default_theme_name_);
+ /*
+ debug ("Fetched default theme name in construct: %s", this.default_theme_name_);
+ */
+ }
+
+ public bool high_contrast {
+ get {
+ return this.high_contrast_;
+ }
+
+ set {
+ debug ("Called high contrast setter with value %s", value.to_string ());
+ this.high_contrast_ = value;
+
+ /* Also sync back to dconf, so that this state is persistent. */
+ set_boolean (AGSettings.KEY_HIGH_CONTRAST, value);
+
+ var greeter = new ArcticaGreeter ();
+ greeter.switch_contrast (value);
+
+ var settings = Gtk.Settings.get_default ();
+ if (value)
+ {
+ /*
+ debug ("Switching GTK Theme to high contrast theme \"%s\"", AGSettings.get_string (AGSettings.KEY_HIGH_CONTRAST_THEME_NAME));
+ */
+ settings.set ("gtk-theme-name", AGSettings.get_string (AGSettings.KEY_HIGH_CONTRAST_THEME_NAME));
+ }
+ else
+ {
+ /*
+ debug ("Switching GTK Theme to default theme \"%s\"", this.default_theme_name_);
+ */
+ settings.set ("gtk-theme-name", this.default_theme_name_);
+ }
+ }
+ }
+
+ public bool big_font {
+ get {
+ return this.big_font_;
+ }
+
+ set {
+ this.big_font_ = value;
+
+ /* Also sync back to dconf, so that this state is persistent. */
+ set_boolean (AGSettings.KEY_BIG_FONT, value);
+
+ var greeter = new ArcticaGreeter ();
+ greeter.switch_font (value);
+ }
}
private const string SCHEMA = "org.ArcticaProject.arctica-greeter";
+ private bool high_contrast_ = AGSettings.get_boolean (AGSettings.KEY_HIGH_CONTRAST);
+ private bool big_font_ = AGSettings.get_boolean (AGSettings.KEY_BIG_FONT);
+ private string default_theme_name_;
}
diff --git a/src/toggle-box.vala b/src/toggle-box.vala
index c157f60..518275f 100644
--- a/src/toggle-box.vala
+++ b/src/toggle-box.vala
@@ -70,8 +70,21 @@ public class ToggleBox : Gtk.Box
" background-image: none;"+
"}\n"+
"button:hover,\n"+
- "button:hover:active {\n"+
+ "button:active,\n" +
+ "button:hover:active,\n" +
+ "button.selected {\n"+
" background-color: %s;\n".printf(AGSettings.get_string (AGSettings.KEY_TOGGLEBOX_BUTTON_BGCOLOR))+
+ "}\n" +
+ "button.high_contrast {\n" +
+ " background-color: %s;\n".printf ("rgba(70, 70, 70, 1.0)") +
+ " background-image: none;\n" +
+ " border-color: %s\n;".printf ("rgba(0, 0, 0, 1.0)") +
+ "}\n" +
+ "button.high_contrast:hover,\n" +
+ "button.high_contrast:active,\n" +
+ "button.high_contrast:hover:active,\n" +
+ "button.high_contrast.selected {\n" +
+ " background-color: %s;\n".printf ("rgba(0, 0, 0, 1.0)") +
"}\n", -1);
button.get_style_context ().add_provider (style, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
}
@@ -113,9 +126,8 @@ public class ToggleBox : Gtk.Box
selected_button = button;
selected_key = selected_button.get_data<string> ("toggle-list-key");
- var bg_color = Gdk.RGBA ();
- bg_color.parse (AGSettings.get_string (AGSettings.KEY_TOGGLEBOX_BUTTON_BGCOLOR));
- selected_button.override_background_color(Gtk.StateFlags.NORMAL, bg_color);
+ /* Handle color via CSS. */
+ selected_button.get_style_context ().add_class ("selected");
}
private Gtk.Button make_button (string key, string name_in, Gdk.Pixbuf? icon)
@@ -140,7 +152,24 @@ public class ToggleBox : Gtk.Box
}
var label = new Gtk.Label (null);
- label.set_markup ("<span font=\"%s %d\" fgcolor=\"%s\">%s</span>".printf (font_family, font_size+2, AGSettings.get_string (AGSettings.KEY_TOGGLEBOX_FONT_FGCOLOR), name));
+ /* Font and other properties are being handled via CSS. */
+ label.set_text (name);
+ try {
+ var style = new Gtk.CssProvider ();
+ style.load_from_data ("label {\n" +
+ " font-family: \"%s\", sans-serif;\n".printf (font_family) +
+ " font-size: %d;\n".printf (font_size + 2) +
+ " color: %s;\n".printf (AGSettings.get_string (AGSettings.KEY_TOGGLEBOX_FONT_FGCOLOR)) +
+ "}\n" +
+ "label.high_contrast {\n" +
+ " color: %s;\n".printf ("rgba(255, 255, 255, 1.0)") +
+ "}\n", -1);
+ label.get_style_context ().add_provider (style, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
+ }
+ catch (Error e)
+ {
+ debug ("Internal error loading session chooser label style: %s", e.message);
+ }
label.halign = Gtk.Align.START;
hbox.pack_start (label, true, true, 0);
diff --git a/src/user-list.vala b/src/user-list.vala
index 3012c7d..9f4b265 100644
--- a/src/user-list.vala
+++ b/src/user-list.vala
@@ -148,7 +148,8 @@ public class UserList : GreeterList
construct
{
- menubar.notify["high-contrast"].connect (() => { change_background (); });
+ var agsettings = new AGSettings ();
+ agsettings.notify["high-contrast"].connect (() => { change_background (); });
entry_displayed_start.connect (() => { change_background (); });
entry_displayed_done.connect (() => { change_background (); });
@@ -593,7 +594,8 @@ public class UserList : GreeterList
private bool change_background_timeout_cb ()
{
string? new_background_file = null;
- if (menubar.high_contrast || !AGSettings.get_boolean (AGSettings.KEY_DRAW_USER_BACKGROUNDS))
+ var agsettings = new AGSettings ();
+ if (agsettings.high_contrast || !AGSettings.get_boolean (AGSettings.KEY_DRAW_USER_BACKGROUNDS))
new_background_file = null;
else if (selected_entry is UserPromptBox)
new_background_file = (selected_entry as UserPromptBox).background;