Increase icon size on tab and workspace popups

Alt+Tab and Workspace popups should be sized relative to the monitor size.
This way they look nice and large regardless of the display resolution.

Also, given much larger modern resolutions, icon sizes should be larger by default.

src/core/screen-private.h

@@ -36,6 +36,7 @@
 #include "display-private.h"
 #include "screen.h"
 #include <X11/Xutil.h>
+#include <gdk/gdk.h>
 #include "ui.h"
 
 typedef struct _MetaXineramaScreenInfo MetaXineramaScreenInfo;
@@ -193,6 +194,8 @@ void          meta_screen_update_workspace_layout (MetaScreen             *scree
 void          meta_screen_update_workspace_names  (MetaScreen             *screen);
 void          meta_screen_queue_workarea_recalc   (MetaScreen             *screen);
 
+GdkMonitor* meta_screen_get_current_monitor (void);
+
 Window meta_create_offscreen_window (Display *xdisplay,
                                      Window   parent,
                                      long     valuemask);

src/core/screen.c

@@ -1214,7 +1214,7 @@ meta_screen_update_cursor (MetaScreen *screen)
   XFreeCursor (screen->display->xdisplay, xcursor);
 }
 
-#define MAX_PREVIEW_SIZE 150.0
+#define MAX_PREVIEW_SCALE 10.0
 
 static GdkPixbuf *
 get_window_pixbuf (MetaWindow *window,
@@ -1224,6 +1224,8 @@ get_window_pixbuf (MetaWindow *window,
   MetaDisplay *display;
   cairo_surface_t *surface;
   GdkPixbuf *pixbuf, *scaled;
+  GdkMonitor *monitor;
+  GdkRectangle rect;
   double ratio;
 
   display = window->display;
@@ -1246,17 +1248,30 @@ get_window_pixbuf (MetaWindow *window,
   *width = gdk_pixbuf_get_width (pixbuf);
   *height = gdk_pixbuf_get_height (pixbuf);
 
-  /* Scale pixbuf to max dimension MAX_PREVIEW_SIZE */
+  monitor = meta_screen_get_current_monitor ();
+  if (monitor != NULL)
+  {
+    gdk_monitor_get_geometry (monitor, &rect);
+  }
+  else
+  {
+    rect.width = window->screen->rect.width;
+    rect.height = window->screen->rect.height;
+  }
+
+  /* Scale pixbuf to max dimension based on monitor size */
   if (*width > *height)
     {
-      ratio = ((double) *width) / MAX_PREVIEW_SIZE;
-      *width = (int) MAX_PREVIEW_SIZE;
+      int max_preview_width = rect.width / MAX_PREVIEW_SCALE;
+      ratio = ((double) *width) / max_preview_width;
+      *width = (int) max_preview_width;
       *height = (int) (((double) *height) / ratio);
     }
   else
     {
-      ratio = ((double) *height) / MAX_PREVIEW_SIZE;
-      *height = (int) MAX_PREVIEW_SIZE;
+      int max_preview_height = rect.height / MAX_PREVIEW_SCALE;
+      ratio = ((double) *height) / max_preview_height;
+      *height = (int) max_preview_height;
       *width = (int) (((double) *width) / ratio);
     }
 
@@ -1797,6 +1812,29 @@ meta_screen_get_current_xinerama (MetaScreen *screen)
   return &screen->xinerama_infos[screen->last_xinerama_index];
 }
 
+GdkMonitor *
+meta_screen_get_current_monitor ()
+{
+  GdkDisplay *display;
+  GdkSeat *seat;
+  GdkDevice *device;
+  GdkMonitor *current;
+  gint x, y;
+
+  display = gdk_display_get_default ();
+  seat = gdk_display_get_default_seat (display);
+  device = gdk_seat_get_pointer (seat);
+
+  gdk_device_get_position (device, NULL, &x, &y);
+  current = gdk_display_get_monitor_at_point (display, x, y);
+
+  if (current != NULL) {
+    return current;
+  }
+
+  return gdk_display_get_primary_monitor (display);
+}
+
 #define _NET_WM_ORIENTATION_HORZ 0
 #define _NET_WM_ORIENTATION_VERT 1
 

src/include/common.h

@@ -301,8 +301,8 @@ struct _MetaButtonLayout
 };
 
 /* should investigate changing these to whatever most apps use */
-#define META_ICON_WIDTH 32
-#define META_ICON_HEIGHT 32
+#define META_ICON_WIDTH 48
+#define META_ICON_HEIGHT 48
 #define META_MINI_ICON_WIDTH 16
 #define META_MINI_ICON_HEIGHT 16
 

src/ui/tabpopup.c

@@ -68,7 +68,8 @@ static GtkWidget* selectable_image_new (GdkPixbuf *pixbuf);
 static void       select_image         (GtkWidget *widget);
 static void       unselect_image       (GtkWidget *widget);
 
-static GtkWidget* selectable_workspace_new (MetaWorkspace *workspace);
+static GtkWidget* selectable_workspace_new (MetaWorkspace *workspace,
+                                                           int entry_count);
 static void       select_workspace         (GtkWidget *widget);
 static void       unselect_workspace       (GtkWidget *widget);
 
@@ -361,7 +362,7 @@ meta_ui_tab_popup_new (const MetaTabEntry *entries,
             }
           else
             {
-              image = selectable_workspace_new ((MetaWorkspace *) te->key);
+              image = selectable_workspace_new ((MetaWorkspace *) te->key, entry_count);
             }
 
           te->widget = image;
@@ -753,23 +754,47 @@ struct _MetaSelectWorkspaceClass
 static GType meta_select_workspace_get_type (void) G_GNUC_CONST;
 
 #define SELECT_OUTLINE_WIDTH 2
-#define MINI_WORKSPACE_WIDTH 48
+#define MINI_WORKSPACE_SCALE 2
 
 static GtkWidget*
-selectable_workspace_new (MetaWorkspace *workspace)
+selectable_workspace_new (MetaWorkspace *workspace, int entry_count)
 {
   GtkWidget *widget;
-  double screen_aspect;
+  GdkMonitor *monitor;
+  GdkRectangle rect;
+  int mini_workspace_width, mini_workspace_height;
+  double mini_workspace_ratio;
 
   widget = g_object_new (meta_select_workspace_get_type (), NULL);
 
-  screen_aspect = (double) workspace->screen->rect.height /
-                  (double) workspace->screen->rect.width;
+  monitor = meta_screen_get_current_monitor ();
+  if (monitor != NULL)
+  {
+    gdk_monitor_get_geometry (monitor, &rect);
+  }
+  else
+  {
+    rect.width = workspace->screen->rect.width;
+    rect.height = workspace->screen->rect.height;
+  }
+
+  if (workspace->screen->rect.width < workspace->screen->rect.height)
+  {
+    mini_workspace_ratio = (double) workspace->screen->rect.width / (double) workspace->screen->rect.height;
+    mini_workspace_height = (int) ((double) rect.height / entry_count - SELECT_OUTLINE_WIDTH * 2);
+    mini_workspace_width = (int) ((double) mini_workspace_height * mini_workspace_ratio);
+  }
+  else
+  {
+    mini_workspace_ratio = (double) workspace->screen->rect.height / (double) workspace->screen->rect.width;
+    mini_workspace_width = (int) ((double) rect.width / entry_count - SELECT_OUTLINE_WIDTH * 2);
+    mini_workspace_height = (int) ((double) mini_workspace_width * mini_workspace_ratio);
+  }
 
   /* account for select rect */
   gtk_widget_set_size_request (widget,
-                               MINI_WORKSPACE_WIDTH + SELECT_OUTLINE_WIDTH * 2,
-                               MINI_WORKSPACE_WIDTH * screen_aspect + SELECT_OUTLINE_WIDTH * 2);
+                               mini_workspace_width / MINI_WORKSPACE_SCALE,
+                               mini_workspace_height / MINI_WORKSPACE_SCALE);
 
   META_SELECT_WORKSPACE (widget)->workspace = workspace;
 

src/ui/theme.c

@@ -5341,20 +5341,24 @@ meta_theme_load_image (MetaTheme  *theme,
                        GError    **error)
 {
   GdkPixbuf *pixbuf;
+  int scale;
 
   pixbuf = g_hash_table_lookup (theme->images_by_filename,
                                 filename);
 
+  scale = gdk_window_get_scale_factor (gdk_get_default_root_window ());
+
   if (pixbuf == NULL)
     {
 
       if (g_str_has_prefix (filename, "theme:") &&
           META_THEME_ALLOWS (theme, META_THEME_IMAGES_FROM_ICON_THEMES))
         {
-          pixbuf = gtk_icon_theme_load_icon (
+          pixbuf = gtk_icon_theme_load_icon_for_scale (
               gtk_icon_theme_get_default (),
               filename+6,
               size_of_theme_icons,
+              scale,
               0,
               error);
           if (pixbuf == NULL) return NULL;

src/ui/ui.c

@@ -569,7 +569,7 @@ meta_ui_pop_delay_exposes  (MetaUI *ui)
 }
 
 static GdkPixbuf *
-load_default_window_icon (int size)
+load_default_window_icon (int size, int scale)
 {
   GtkIconTheme *theme = gtk_icon_theme_get_default ();
   const char *icon_name;
@@ -579,17 +579,19 @@ load_default_window_icon (int size)
   else
     icon_name = "image-missing";
 
-  return gtk_icon_theme_load_icon (theme, icon_name, size, 0, NULL);
+  return gtk_icon_theme_load_icon_for_scale (theme, icon_name, size, scale, 0, NULL);
 }
 
 GdkPixbuf*
 meta_ui_get_default_window_icon (MetaUI *ui)
 {
   static GdkPixbuf *default_icon = NULL;
+  int scale;
 
   if (default_icon == NULL)
     {
-      default_icon = load_default_window_icon (META_ICON_WIDTH);
+      scale = gtk_widget_get_scale_factor (GTK_WIDGET (ui->frames));
+      default_icon = load_default_window_icon (META_ICON_WIDTH, scale);
       g_assert (default_icon);
     }
 
@@ -602,29 +604,12 @@ GdkPixbuf*
 meta_ui_get_default_mini_icon (MetaUI *ui)
 {
   static GdkPixbuf *default_icon = NULL;
+  int scale;
 
   if (default_icon == NULL)
     {
-      GtkIconTheme *theme;
-      gboolean icon_exists;
-
-      theme = gtk_icon_theme_get_default ();
-
-      icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME);
-
-      if (icon_exists)
-          default_icon = gtk_icon_theme_load_icon (theme,
-                                                   META_DEFAULT_ICON_NAME,
-                                                   META_MINI_ICON_WIDTH,
-                                                   0,
-                                                   NULL);
-      else
-          default_icon = gtk_icon_theme_load_icon (theme,
-                                                   "image-missing",
-                                                   META_MINI_ICON_WIDTH,
-                                                   0,
-                                                   NULL);
-
+      scale = gtk_widget_get_scale_factor (GTK_WIDGET (ui->frames));
+      default_icon = load_default_window_icon (META_MINI_ICON_WIDTH, scale);
       g_assert (default_icon);
     }