/* Monitor Settings. A preference panel for configuring monitors * * Copyright (C) 2007, 2008 Red Hat, Inc. * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Author: Soren Sandmann */ #include #include #include #include #include #include "scrollarea.h" #define GNOME_DESKTOP_USE_UNSTABLE_API #include #include #include #include #include #include #include #include #include typedef struct App App; typedef struct GrabInfo GrabInfo; struct App { GnomeRRScreen *screen; GnomeRRConfig *current_configuration; GnomeRRLabeler *labeler; GnomeOutputInfo *current_output; GtkWidget *dialog; GtkWidget *current_monitor_event_box; GtkWidget *current_monitor_label; GtkWidget *monitor_on_radio; GtkWidget *monitor_off_radio; GtkListStore *resolution_store; GtkWidget *resolution_combo; GtkWidget *refresh_combo; GtkWidget *rotation_combo; GtkWidget *panel_checkbox; GtkWidget *clone_checkbox; GtkWidget *show_icon_checkbox; GtkWidget *area; gboolean ignore_gui_changes; GConfClient *client; /* These are used while we are waiting for the ApplyConfiguration method to be executed over D-bus */ DBusGConnection *connection; DBusGProxy *proxy; DBusGProxyCall *proxy_call; }; static void rebuild_gui (App *app); static void on_rate_changed (GtkComboBox *box, gpointer data); static gboolean output_overlaps (GnomeOutputInfo *output, GnomeRRConfig *config); static void select_current_output_from_dialog_position (App *app); static void monitor_on_off_toggled_cb (GtkToggleButton *toggle, gpointer data); static void get_geometry (GnomeOutputInfo *output, int *w, int *h); static void error_message (App *app, const char *primary_text, const char *secondary_text) { GtkWidget *dialog; dialog = gtk_message_dialog_new ((app && app->dialog) ? GTK_WINDOW (app->dialog) : NULL, GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "%s", primary_text); gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), "%s", secondary_text); gtk_dialog_run (GTK_DIALOG (dialog)); gtk_widget_destroy (dialog); } static gboolean do_free (gpointer data) { g_free (data); return FALSE; } static gchar * idle_free (gchar *s) { g_idle_add (do_free, s); return s; } static int compare_outputs (const void *p1, const void *p2) { GnomeOutputInfo *const *o1 = p1; GnomeOutputInfo *const *o2 = p2; return (**o1).x - (**o2).x; } static void on_screen_changed (GnomeRRScreen *scr, gpointer data) { GnomeRRConfig *current; App *app = data; int i; current = gnome_rr_config_new_current (app->screen); if (app->current_configuration) gnome_rr_config_free (app->current_configuration); app->current_configuration = current; #if 0 for (i = 0; app->current_configuration->outputs[i] != NULL; ++i) { GnomeOutputInfo *o = app->current_configuration->outputs[i]; g_debug (" output %s %s: %d %d %d %d", o->name, o->on? "on" : "off", o->x, o->y, o->width, o->height); } #endif #if 0 g_debug ("sorting"); #endif /* Sort outputs according to X coordinate */ for (i = 0; app->current_configuration->outputs[i] != NULL; ++i) ; qsort (app->current_configuration->outputs, i, sizeof (GnomeOutputInfo *), compare_outputs); if (app->labeler) { gnome_rr_labeler_hide (app->labeler); g_object_unref (app->labeler); } app->labeler = gnome_rr_labeler_new (app->current_configuration); #if 0 for (i = 0; app->current_configuration->outputs[i] != NULL; ++i) { GnomeOutputInfo *o = app->current_configuration->outputs[i]; g_debug (" output: %d %d %d %d", o->x, o->y, o->width, o->height); } #endif select_current_output_from_dialog_position (app); } static void on_viewport_changed (FooScrollArea *scroll_area, GdkRectangle *old_viewport, GdkRectangle *new_viewport) { foo_scroll_area_set_size (scroll_area, new_viewport->width, new_viewport->height); foo_scroll_area_invalidate (scroll_area); } static void layout_set_font (PangoLayout *layout, const char *font) { PangoFontDescription *desc = pango_font_description_from_string (font); if (desc) { pango_layout_set_font_description (layout, desc); pango_font_description_free (desc); } } static void clear_combo (GtkWidget *widget) { GtkComboBox *box = GTK_COMBO_BOX (widget); GtkTreeModel *model = gtk_combo_box_get_model (box); GtkListStore *store = GTK_LIST_STORE (model); gtk_list_store_clear (store); } typedef struct { const char *text; gboolean found; GtkTreeIter iter; } ForeachInfo; static gboolean foreach (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { ForeachInfo *info = data; char *text = NULL; gtk_tree_model_get (model, iter, 0, &text, -1); g_assert (text != NULL); if (strcmp (info->text, text) == 0) { info->found = TRUE; info->iter = *iter; return TRUE; } return FALSE; } static void add_key (GtkWidget *widget, const char *text, int width, int height, int rate, GnomeRRRotation rotation) { ForeachInfo info; GtkComboBox *box = GTK_COMBO_BOX (widget); GtkTreeModel *model = gtk_combo_box_get_model (box); GtkListStore *store = GTK_LIST_STORE (model); gboolean retval; info.text = text; info.found = FALSE; gtk_tree_model_foreach (model, foreach, &info); if (!info.found) { GtkTreeIter iter; gtk_list_store_insert_with_values (store, &iter, -1, 0, text, 1, width, 2, height, 3, rate, 4, width * height, 5, rotation, -1); retval = TRUE; } else { retval = FALSE; } } static gboolean combo_select (GtkWidget *widget, const char *text) { GtkComboBox *box = GTK_COMBO_BOX (widget); GtkTreeModel *model = gtk_combo_box_get_model (box); ForeachInfo info; info.text = text; info.found = FALSE; gtk_tree_model_foreach (model, foreach, &info); if (!info.found) return FALSE; gtk_combo_box_set_active_iter (box, &info.iter); return TRUE; } static GnomeRRMode ** get_current_modes (App *app) { GnomeRROutput *output; if (app->current_configuration->clone) { return gnome_rr_screen_list_clone_modes (app->screen); } else { if (!app->current_output) return NULL; output = gnome_rr_screen_get_output_by_name ( app->screen, app->current_output->name); if (!output) return NULL; return gnome_rr_output_list_modes (output); } } static void rebuild_rotation_combo (App *app) { typedef struct { GnomeRRRotation rotation; const char * name; } RotationInfo; static const RotationInfo rotations[] = { { GNOME_RR_ROTATION_0, N_("Normal") }, { GNOME_RR_ROTATION_90, N_("Left") }, { GNOME_RR_ROTATION_270, N_("Right") }, { GNOME_RR_ROTATION_180, N_("Upside Down") }, }; const char *selection; GnomeRRRotation current; int i; clear_combo (app->rotation_combo); gtk_widget_set_sensitive ( app->rotation_combo, app->current_output && app->current_output->on); if (!app->current_output) return; current = app->current_output->rotation; selection = NULL; for (i = 0; i < G_N_ELEMENTS (rotations); ++i) { const RotationInfo *info = &(rotations[i]); app->current_output->rotation = info->rotation; /* NULL-GError --- FIXME: we should say why this rotation is not available! */ if (gnome_rr_config_applicable (app->current_configuration, app->screen, NULL)) { add_key (app->rotation_combo, info->name, 0, 0, 0, info->rotation); if (info->rotation == current) selection = info->name; } } app->current_output->rotation = current; if (!(selection && combo_select (app->rotation_combo, selection))) combo_select (app->rotation_combo, N_("Normal")); } static void rebuild_rate_combo (App *app) { GHashTable *rates; GnomeRRMode **modes; int best; int i; clear_combo (app->refresh_combo); gtk_widget_set_sensitive ( app->refresh_combo, app->current_output && app->current_output->on); if (!app->current_output || !(modes = get_current_modes (app))) return; rates = g_hash_table_new_full ( g_str_hash, g_str_equal, (GFreeFunc) g_free, NULL); best = -1; for (i = 0; modes[i] != NULL; ++i) { GnomeRRMode *mode = modes[i]; int width, height, rate; width = gnome_rr_mode_get_width (mode); height = gnome_rr_mode_get_height (mode); rate = gnome_rr_mode_get_freq (mode); if (width == app->current_output->width && height == app->current_output->height) { add_key (app->refresh_combo, idle_free (g_strdup_printf (_("%d Hz"), rate)), 0, 0, rate, -1); if (rate > best) best = rate; } } if (!combo_select (app->refresh_combo, idle_free (g_strdup_printf (_("%d Hz"), app->current_output->rate)))) combo_select (app->refresh_combo, idle_free (g_strdup_printf (_("%d Hz"), best))); } static int count_active_outputs (App *app) { int i, count = 0; for (i = 0; app->current_configuration->outputs[i] != NULL; ++i) { GnomeOutputInfo *output = app->current_configuration->outputs[i]; if (output->on) count++; } return count; } #if 0 static int count_all_outputs (GnomeRRConfig *config) { int i; for (i = 0; config->outputs[i] != NULL; i++) ; return i; } #endif static void rebuild_current_monitor_label (App *app) { char *str; gboolean free_str; GdkColor color; gboolean use_color; if (app->current_output) { str = g_strdup_printf (_("Monitor: %s"), app->current_output->display_name); free_str = TRUE; gnome_rr_labeler_get_color_for_output (app->labeler, app->current_output, &color); use_color = TRUE; } else { str = _("Monitor"); free_str = FALSE; use_color = FALSE; } gtk_label_set_markup (GTK_LABEL (app->current_monitor_label), str); if (free_str) g_free (str); if (use_color) gtk_widget_modify_bg (app->current_monitor_event_box, app->current_monitor_event_box->state, &color); gtk_event_box_set_visible_window (GTK_EVENT_BOX (app->current_monitor_event_box), use_color); } static void rebuild_on_off_radios (App *app) { gboolean sensitive; gboolean on_active; gboolean off_active; g_signal_handlers_block_by_func (app->monitor_on_radio, G_CALLBACK (monitor_on_off_toggled_cb), app); g_signal_handlers_block_by_func (app->monitor_off_radio, G_CALLBACK (monitor_on_off_toggled_cb), app); if (app->current_output) { if (count_active_outputs (app) > 1 || !app->current_output->on) sensitive = TRUE; else sensitive = FALSE; on_active = app->current_output->on; off_active = !on_active; } else { sensitive = FALSE; on_active = FALSE; off_active = FALSE; } gtk_widget_set_sensitive (app->monitor_on_radio, sensitive); gtk_widget_set_sensitive (app->monitor_off_radio, sensitive); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (app->monitor_on_radio), on_active); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (app->monitor_off_radio), off_active); g_signal_handlers_unblock_by_func (app->monitor_on_radio, G_CALLBACK (monitor_on_off_toggled_cb), app); g_signal_handlers_unblock_by_func (app->monitor_off_radio, G_CALLBACK (monitor_on_off_toggled_cb), app); } static void rebuild_resolution_combo (App *app) { int i; GnomeRRMode **modes; int best_w, best_h; const char *current; clear_combo (app->resolution_combo); if (!(modes = get_current_modes (app)) || !app->current_output || !app->current_output->on) { gtk_widget_set_sensitive (app->resolution_combo, FALSE); return; } g_assert (app->current_output != NULL); gtk_widget_set_sensitive (app->resolution_combo, TRUE); best_w = 0; best_h = 0; for (i = 0; modes[i] != NULL; ++i) { int width, height; width = gnome_rr_mode_get_width (modes[i]); height = gnome_rr_mode_get_height (modes[i]); add_key (app->resolution_combo, idle_free (g_strdup_printf (_("%d x %d"), width, height)), width, height, 0, -1); if (width * height > best_w * best_h) { best_w = width; best_h = height; } } current = idle_free (g_strdup_printf (_("%d x %d"), app->current_output->width, app->current_output->height)); if (!combo_select (app->resolution_combo, current)) { combo_select (app->resolution_combo, idle_free ( g_strdup_printf (_("%d x %d"), best_w, best_h))); } } static void rebuild_gui (App *app) { gboolean sensitive; /* We would break spectacularly if we recursed, so * just assert if that happens */ g_assert (app->ignore_gui_changes == FALSE); app->ignore_gui_changes = TRUE; sensitive = app->current_output ? TRUE : FALSE; #if 0 g_debug ("rebuild gui, is on: %d", app->current_output->on); #endif rebuild_current_monitor_label (app); rebuild_on_off_radios (app); rebuild_resolution_combo (app); rebuild_rate_combo (app); rebuild_rotation_combo (app); #if 0 g_debug ("sensitive: %d, on: %d", sensitive, app->current_output->on); #endif gtk_widget_set_sensitive (app->panel_checkbox, sensitive); app->ignore_gui_changes = FALSE; if (app->current_configuration && app->current_configuration->clone) gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (app->clone_checkbox), TRUE); else gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (app->clone_checkbox), FALSE); } static gboolean get_mode (GtkWidget *widget, int *width, int *height, int *freq, GnomeRRRotation *rot) { GtkTreeIter iter; GtkTreeModel *model; GtkComboBox *box = GTK_COMBO_BOX (widget); int dummy; if (!gtk_combo_box_get_active_iter (box, &iter)) return FALSE; if (!width) width = &dummy; if (!height) height = &dummy; if (!freq) freq = &dummy; if (!rot) rot = (GnomeRRRotation *)&dummy; model = gtk_combo_box_get_model (box); gtk_tree_model_get (model, &iter, 1, width, 2, height, 3, freq, 5, rot, -1); return TRUE; } static void on_rotation_changed (GtkComboBox *box, gpointer data) { App *app = data; GnomeRRRotation rotation; if (!app->current_output) return; if (get_mode (app->rotation_combo, NULL, NULL, NULL, &rotation)) app->current_output->rotation = rotation; foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area)); } static void on_rate_changed (GtkComboBox *box, gpointer data) { App *app = data; int rate; if (!app->current_output) return; if (get_mode (app->refresh_combo, NULL, NULL, &rate, NULL)) app->current_output->rate = rate; foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area)); } static void monitor_on_off_toggled_cb (GtkToggleButton *toggle, gpointer data) { App *app = data; gboolean is_on; if (!app->current_output) return; if (!gtk_toggle_button_get_active (toggle)) return; if (GTK_WIDGET (toggle) == app->monitor_on_radio) is_on = TRUE; else if (GTK_WIDGET (toggle) == app->monitor_off_radio) is_on = FALSE; else { g_assert_not_reached (); return; } app->current_output->on = is_on; rebuild_gui (app); foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area)); } static void realign_outputs_after_resolution_change (App *app, GnomeOutputInfo *output_that_changed, int old_width, int old_height) { /* We find the outputs that were below or to the right of the output that * changed, and realign them; we also do that for outputs that shared the * right/bottom edges with the output that changed. The outputs that are * above or to the left of that output don't need to change. */ int i; int old_right_edge, old_bottom_edge; int dx, dy; g_assert (app->current_configuration != NULL); old_right_edge = output_that_changed->x + old_width; old_bottom_edge = output_that_changed->y + old_height; dx = output_that_changed->width - old_width; dy = output_that_changed->height - old_height; for (i = 0; app->current_configuration->outputs[i] != NULL; i++) { GnomeOutputInfo *output; int output_width, output_height; output = app->current_configuration->outputs[i]; if (output == output_that_changed || !output->connected) continue; get_geometry (output, &output_width, &output_height); if (output->x >= old_right_edge) output->x += dx; else if (output->x + output_width == old_right_edge) output->x = output_that_changed->x + output_that_changed->width - output_width; if (output->y >= old_bottom_edge) output->y += dy; else if (output->y + output_height == old_bottom_edge) output->y = output_that_changed->y + output_that_changed->height - output_height; } } static void on_resolution_changed (GtkComboBox *box, gpointer data) { App *app = data; int old_width, old_height; int width; int height; if (!app->current_output) return; old_width = app->current_output->width; old_height = app->current_output->height; if (get_mode (app->resolution_combo, &width, &height, NULL, NULL)) { app->current_output->width = width; app->current_output->height = height; if (width == 0 || height == 0) app->current_output->on = FALSE; else app->current_output->on = TRUE; } realign_outputs_after_resolution_change (app, app->current_output, old_width, old_height); rebuild_rate_combo (app); rebuild_rotation_combo (app); foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area)); } static void lay_out_outputs_horizontally (App *app) { int i; int x; /* Lay out all the monitors horizontally when "mirror screens" is turned * off, to avoid having all of them overlapped initially. We put the * outputs turned off on the right-hand side. */ x = 0; /* First pass, all "on" outputs */ for (i = 0; app->current_configuration->outputs[i]; ++i) { GnomeOutputInfo *output; output = app->current_configuration->outputs[i]; if (output->connected && output->on) output->x = x; x += output->width; } /* Second pass, all the black screens */ for (i = 0; app->current_configuration->outputs[i]; ++i) { GnomeOutputInfo *output; output = app->current_configuration->outputs[i]; if (!(output->connected && output->on)) output->x = x; x += output->width; } } static void on_clone_changed (GtkWidget *box, gpointer data) { App *app = data; app->current_configuration->clone = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (app->clone_checkbox)); if (app->current_configuration->clone) { int i; for (i = 0; app->current_configuration->outputs[i]; ++i) { if (app->current_configuration->outputs[i]->connected) { app->current_output = app->current_configuration->outputs[i]; break; } } } else { if (output_overlaps (app->current_output, app->current_configuration)) lay_out_outputs_horizontally (app); } rebuild_gui (app); } static void get_geometry (GnomeOutputInfo *output, int *w, int *h) { if (output->on) { *h = output->height; *w = output->width; } else { *h = output->pref_height; *w = output->pref_width; } } #define SPACE 15 #define MARGIN 15 static GList * list_connected_outputs (App *app, int *total_w, int *total_h) { int i, dummy; GList *result = NULL; if (!total_w) total_w = &dummy; if (!total_h) total_h = &dummy; *total_w = 0; *total_h = 0; for (i = 0; app->current_configuration->outputs[i] != NULL; ++i) { GnomeOutputInfo *output = app->current_configuration->outputs[i]; if (output->connected) { int w, h; result = g_list_prepend (result, output); get_geometry (output, &w, &h); *total_w += w; *total_h += h; } } return g_list_reverse (result); } static int get_n_connected (App *app) { GList *connected_outputs = list_connected_outputs (app, NULL, NULL); int n = g_list_length (connected_outputs); g_list_free (connected_outputs); return n; } static double compute_scale (App *app) { int available_w, available_h; int total_w, total_h; int n_monitors; GdkRectangle viewport; GList *connected_outputs; foo_scroll_area_get_viewport (FOO_SCROLL_AREA (app->area), &viewport); connected_outputs = list_connected_outputs (app, &total_w, &total_h); n_monitors = g_list_length (connected_outputs); g_list_free (connected_outputs); available_w = viewport.width - 2 * MARGIN - (n_monitors - 1) * SPACE; available_h = viewport.height - 2 * MARGIN - (n_monitors - 1) * SPACE; return MIN ((double)available_w / total_w, (double)available_h / total_h); } typedef struct Edge { GnomeOutputInfo *output; int x1, y1; int x2, y2; } Edge; typedef struct Snap { Edge *snapper; /* Edge that should be snapped */ Edge *snappee; int dy, dx; } Snap; static void add_edge (GnomeOutputInfo *output, int x1, int y1, int x2, int y2, GArray *edges) { Edge e; e.x1 = x1; e.x2 = x2; e.y1 = y1; e.y2 = y2; e.output = output; g_array_append_val (edges, e); } static void list_edges_for_output (GnomeOutputInfo *output, GArray *edges) { int x, y, w, h; x = output->x; y = output->y; get_geometry (output, &w, &h); /* Top, Bottom, Left, Right */ add_edge (output, x, y, x + w, y, edges); add_edge (output, x, y + h, x + w, y + h, edges); add_edge (output, x, y, x, y + h, edges); add_edge (output, x + w, y, x + w, y + h, edges); } static void list_edges (GnomeRRConfig *config, GArray *edges) { int i; for (i = 0; config->outputs[i]; ++i) { GnomeOutputInfo *output = config->outputs[i]; if (output->connected) list_edges_for_output (output, edges); } } static gboolean overlap (int s1, int e1, int s2, int e2) { return (!(e1 < s2 || s1 >= e2)); } static gboolean horizontal_overlap (Edge *snapper, Edge *snappee) { if (snapper->y1 != snapper->y2 || snappee->y1 != snappee->y2) return FALSE; return overlap (snapper->x1, snapper->x2, snappee->x1, snappee->x2); } static gboolean vertical_overlap (Edge *snapper, Edge *snappee) { if (snapper->x1 != snapper->x2 || snappee->x1 != snappee->x2) return FALSE; return overlap (snapper->y1, snapper->y2, snappee->y1, snappee->y2); } static void add_snap (GArray *snaps, Snap snap) { if (ABS (snap.dx) <= 200 || ABS (snap.dy) <= 200) g_array_append_val (snaps, snap); } static void add_edge_snaps (Edge *snapper, Edge *snappee, GArray *snaps) { Snap snap; snap.snapper = snapper; snap.snappee = snappee; if (horizontal_overlap (snapper, snappee)) { snap.dx = 0; snap.dy = snappee->y1 - snapper->y1; add_snap (snaps, snap); } else if (vertical_overlap (snapper, snappee)) { snap.dy = 0; snap.dx = snappee->x1 - snapper->x1; add_snap (snaps, snap); } /* Corner snaps */ /* 1->1 */ snap.dx = snappee->x1 - snapper->x1; snap.dy = snappee->y1 - snapper->y1; add_snap (snaps, snap); /* 1->2 */ snap.dx = snappee->x2 - snapper->x1; snap.dy = snappee->y2 - snapper->y1; add_snap (snaps, snap); /* 2->2 */ snap.dx = snappee->x2 - snapper->x2; snap.dy = snappee->y2 - snapper->y2; add_snap (snaps, snap); /* 2->1 */ snap.dx = snappee->x1 - snapper->x2; snap.dy = snappee->y1 - snapper->y2; add_snap (snaps, snap); } static void list_snaps (GnomeOutputInfo *output, GArray *edges, GArray *snaps) { int i; for (i = 0; i < edges->len; ++i) { Edge *output_edge = &(g_array_index (edges, Edge, i)); if (output_edge->output == output) { int j; for (j = 0; j < edges->len; ++j) { Edge *edge = &(g_array_index (edges, Edge, j)); if (edge->output != output) add_edge_snaps (output_edge, edge, snaps); } } } } #if 0 static void print_edge (Edge *edge) { g_debug ("(%d %d %d %d)", edge->x1, edge->y1, edge->x2, edge->y2); } #endif static gboolean corner_on_edge (int x, int y, Edge *e) { if (x == e->x1 && x == e->x2 && y >= e->y1 && y <= e->y2) return TRUE; if (y == e->y1 && y == e->y2 && x >= e->x1 && x <= e->x2) return TRUE; return FALSE; } static gboolean edges_align (Edge *e1, Edge *e2) { if (corner_on_edge (e1->x1, e1->y1, e2)) return TRUE; if (corner_on_edge (e2->x1, e2->y1, e1)) return TRUE; return FALSE; } static gboolean output_is_aligned (GnomeOutputInfo *output, GArray *edges) { gboolean result = FALSE; int i; for (i = 0; i < edges->len; ++i) { Edge *output_edge = &(g_array_index (edges, Edge, i)); if (output_edge->output == output) { int j; for (j = 0; j < edges->len; ++j) { Edge *edge = &(g_array_index (edges, Edge, j)); /* We are aligned if an output edge matches * an edge of another output */ if (edge->output != output_edge->output) { if (edges_align (output_edge, edge)) { result = TRUE; goto done; } } } } } done: return result; } static void get_output_rect (GnomeOutputInfo *output, GdkRectangle *rect) { int w, h; get_geometry (output, &w, &h); rect->width = w; rect->height = h; rect->x = output->x; rect->y = output->y; } static gboolean output_overlaps (GnomeOutputInfo *output, GnomeRRConfig *config) { int i; GdkRectangle output_rect; get_output_rect (output, &output_rect); for (i = 0; config->outputs[i]; ++i) { GnomeOutputInfo *other = config->outputs[i]; if (other != output && other->connected) { GdkRectangle other_rect; get_output_rect (other, &other_rect); if (gdk_rectangle_intersect (&output_rect, &other_rect, NULL)) return TRUE; } } return FALSE; } static gboolean gnome_rr_config_is_aligned (GnomeRRConfig *config, GArray *edges) { int i; gboolean result = TRUE; for (i = 0; config->outputs[i]; ++i) { GnomeOutputInfo *output = config->outputs[i]; if (output->connected) { if (!output_is_aligned (output, edges)) return FALSE; if (output_overlaps (output, config)) return FALSE; } } return result; } struct GrabInfo { int grab_x; int grab_y; int output_x; int output_y; }; static gboolean is_corner_snap (const Snap *s) { return s->dx != 0 && s->dy != 0; } static int compare_snaps (gconstpointer v1, gconstpointer v2) { const Snap *s1 = v1; const Snap *s2 = v2; int sv1 = MAX (ABS (s1->dx), ABS (s1->dy)); int sv2 = MAX (ABS (s2->dx), ABS (s2->dy)); int d; d = sv1 - sv2; /* This snapping algorithm is good enough for rock'n'roll, but * this is probably a better: * * First do a horizontal/vertical snap, then * with the new coordinates from that snap, * do a corner snap. * * Right now, it's confusing that corner snapping * depends on the distance in an axis that you can't actually see. * */ if (d == 0) { if (is_corner_snap (s1) && !is_corner_snap (s2)) return -1; else if (is_corner_snap (s2) && !is_corner_snap (s1)) return 1; else return 0; } else { return d; } } static void on_output_event (FooScrollArea *area, FooScrollAreaEvent *event, gpointer data) { GnomeOutputInfo *output = data; App *app = g_object_get_data (G_OBJECT (area), "app"); if (event->type == FOO_BUTTON_PRESS) { GrabInfo *info; app->current_output = output; rebuild_gui (app); if (!app->current_configuration->clone && get_n_connected (app) > 1) { foo_scroll_area_begin_grab (area, on_output_event, data); info = g_new0 (GrabInfo, 1); info->grab_x = event->x; info->grab_y = event->y; info->output_x = output->x; info->output_y = output->y; output->user_data = info; } foo_scroll_area_invalidate (area); } else { if (foo_scroll_area_is_grabbed (area)) { GrabInfo *info = output->user_data; double scale = compute_scale (app); int old_x, old_y; int new_x, new_y; int i; GArray *edges, *snaps, *new_edges; old_x = output->x; old_y = output->y; new_x = info->output_x + (event->x - info->grab_x) / scale; new_y = info->output_y + (event->y - info->grab_y) / scale; output->x = new_x; output->y = new_y; edges = g_array_new (TRUE, TRUE, sizeof (Edge)); snaps = g_array_new (TRUE, TRUE, sizeof (Snap)); new_edges = g_array_new (TRUE, TRUE, sizeof (Edge)); list_edges (app->current_configuration, edges); list_snaps (output, edges, snaps); g_array_sort (snaps, compare_snaps); output->x = info->output_x; output->y = info->output_y; for (i = 0; i < snaps->len; ++i) { Snap *snap = &(g_array_index (snaps, Snap, i)); GArray *new_edges = g_array_new (TRUE, TRUE, sizeof (Edge)); output->x = new_x + snap->dx; output->y = new_y + snap->dy; g_array_set_size (new_edges, 0); list_edges (app->current_configuration, new_edges); if (gnome_rr_config_is_aligned (app->current_configuration, new_edges)) { g_array_free (new_edges, TRUE); break; } else { output->x = info->output_x; output->y = info->output_y; } } g_array_free (new_edges, TRUE); g_array_free (snaps, TRUE); g_array_free (edges, TRUE); if (event->type == FOO_BUTTON_RELEASE) { foo_scroll_area_end_grab (area); g_free (output->user_data); output->user_data = NULL; #if 0 g_debug ("new position: %d %d %d %d", output->x, output->y, output->width, output->height); #endif } foo_scroll_area_invalidate (area); } } } #if 0 static void on_canvas_event (FooScrollArea *area, FooScrollAreaEvent *event, gpointer data) { App *app = g_object_get_data (G_OBJECT (area), "app"); if (event->type == FOO_BUTTON_PRESS) { app->current_output = NULL; rebuild_gui (app); foo_scroll_area_invalidate (area); } } #endif static PangoLayout * get_display_name (App *app, GnomeOutputInfo *output) { const char *text; if (app->current_configuration->clone) { /* Translators: this is the feature where what you see on your laptop's * screen is the same as your external monitor. Here, "Mirror" is being * used as an adjective, not as a verb. For example, the Spanish * translation could be "Pantallas en Espejo", *not* "Espejar Pantallas". */ text = _("Mirror Screens"); } else text = output->display_name; return gtk_widget_create_pango_layout ( GTK_WIDGET (app->area), text); } static void paint_background (FooScrollArea *area, cairo_t *cr) { GdkRectangle viewport; GtkWidget *widget; widget = GTK_WIDGET (area); foo_scroll_area_get_viewport (area, &viewport); cairo_set_source_rgb (cr, widget->style->base[GTK_STATE_SELECTED].red / 65535.0, widget->style->base[GTK_STATE_SELECTED].green / 65535.0, widget->style->base[GTK_STATE_SELECTED].blue / 65535.0); cairo_rectangle (cr, viewport.x, viewport.y, viewport.width, viewport.height); cairo_fill_preserve (cr); #if 0 foo_scroll_area_add_input_from_fill (area, cr, on_canvas_event, NULL); #endif cairo_set_source_rgb (cr, widget->style->dark[GTK_STATE_SELECTED].red / 65535.0, widget->style->dark[GTK_STATE_SELECTED].green / 65535.0, widget->style->dark[GTK_STATE_SELECTED].blue / 65535.0); cairo_stroke (cr); } static void paint_output (App *app, cairo_t *cr, int i) { int w, h; double scale = compute_scale (app); double x, y; int total_w, total_h; GList *connected_outputs = list_connected_outputs (app, &total_w, &total_h); GnomeOutputInfo *output = g_list_nth (connected_outputs, i)->data; PangoLayout *layout = get_display_name (app, output); PangoRectangle extent; GdkRectangle viewport; double angle; GdkColor output_color; double r, g, b; cairo_save (cr); foo_scroll_area_get_viewport (FOO_SCROLL_AREA (app->area), &viewport); get_geometry (output, &w, &h); #if 0 g_debug ("%s (%p) geometry %d %d %d", output->name, output, w, h, output->rate); #endif viewport.height -= 2 * MARGIN; viewport.width -= 2 * MARGIN; x = output->x * scale + MARGIN + (viewport.width - total_w * scale) / 2.0; y = output->y * scale + MARGIN + (viewport.height - total_h * scale) / 2.0; #if 0 g_debug ("scaled: %f %f", x, y); g_debug ("scale: %f", scale); g_debug ("%f %f %f %f", x, y, w * scale + 0.5, h * scale + 0.5); #endif cairo_save (cr); cairo_translate (cr, x + (w * scale + 0.5) / 2, y + (h * scale + 0.5) / 2); if (output->rotation & GNOME_RR_ROTATION_0) { angle = 0; } else if (output->rotation & GNOME_RR_ROTATION_90) { angle = 1.5 * G_PI; } else if (output->rotation & GNOME_RR_ROTATION_180) { angle = G_PI; } else if (output->rotation & GNOME_RR_ROTATION_270) { angle = G_PI / 2; } else { angle = 0; } cairo_rotate (cr, angle); if (output->rotation & GNOME_RR_REFLECT_X) cairo_scale (cr, -1, 1); if (output->rotation & GNOME_RR_REFLECT_Y) cairo_scale (cr, 1, -1); cairo_translate (cr, - x - (w * scale + 0.5) / 2, - y - (h * scale + 0.5) / 2); cairo_rectangle (cr, x, y, w * scale + 0.5, h * scale + 0.5); cairo_clip_preserve (cr); gnome_rr_labeler_get_color_for_output (app->labeler, output, &output_color); r = output_color.red / 65535.0; g = output_color.green / 65535.0; b = output_color.blue / 65535.0; if (!output->on) { /* If the output is turned off, just darken the selected color */ r *= 0.2; g *= 0.2; b *= 0.2; } cairo_set_source_rgba (cr, r, g, b, 1.0); foo_scroll_area_add_input_from_fill (FOO_SCROLL_AREA (app->area), cr, on_output_event, output); cairo_fill (cr); if (output == app->current_output) { cairo_rectangle (cr, x + 2, y + 2, w * scale + 0.5 - 4, h * scale + 0.5 - 4); cairo_set_line_width (cr, 4); cairo_set_source_rgba (cr, 0.33, 0.43, 0.57, 1.0); cairo_stroke (cr); } cairo_rectangle (cr, x + 0.5, y + 0.5, w * scale + 0.5 - 1, h * scale + 0.5 - 1); cairo_set_line_width (cr, 1); cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0); cairo_stroke (cr); cairo_set_line_width (cr, 2); layout_set_font (layout, "Sans Bold 12"); pango_layout_get_pixel_extents (layout, NULL, &extent); extent.x = x + ((w * scale + 0.5) - extent.width) / 2; extent.y = y + ((h * scale + 0.5) - extent.height) / 2; cairo_move_to (cr, extent.x, extent.y); if (output->on) cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); else cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); pango_cairo_show_layout (cr, layout); cairo_restore (cr); g_object_unref (layout); } static void on_area_paint (FooScrollArea *area, cairo_t *cr, GdkRectangle *extent, GdkRegion *region, gpointer data) { App *app = data; double scale; GList *connected_outputs = NULL; GList *list; paint_background (area, cr); if (!app->current_configuration) return; scale = compute_scale (app); connected_outputs = list_connected_outputs (app, NULL, NULL); #if 0 g_debug ("scale: %f", scale); #endif for (list = connected_outputs; list != NULL; list = list->next) { paint_output (app, cr, g_list_position (connected_outputs, list)); if (app->current_configuration->clone) break; } } static void make_text_combo (GtkWidget *widget, int sort_column) { GtkComboBox *box = GTK_COMBO_BOX (widget); GtkListStore *store = gtk_list_store_new ( 6, G_TYPE_STRING, /* Text */ G_TYPE_INT, /* Width */ G_TYPE_INT, /* Height */ G_TYPE_INT, /* Frequency */ G_TYPE_INT, /* Width * Height */ G_TYPE_INT); /* Rotation */ GtkCellRenderer *cell; gtk_cell_layout_clear (GTK_CELL_LAYOUT (widget)); gtk_combo_box_set_model (box, GTK_TREE_MODEL (store)); cell = gtk_cell_renderer_text_new (); gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (box), cell, TRUE); gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (box), cell, "text", 0, NULL); if (sort_column != -1) { gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (store), sort_column, GTK_SORT_DESCENDING); } } static void compute_virtual_size_for_configuration (GnomeRRConfig *config, int *ret_width, int *ret_height) { int i; int width, height; width = height = 0; for (i = 0; config->outputs[i] != NULL; i++) { GnomeOutputInfo *output; output = config->outputs[i]; if (output->on) { width = MAX (width, output->x + output->width); height = MAX (height, output->y + output->height); } } *ret_width = width; *ret_height = height; } static void check_required_virtual_size (App *app) { int req_width, req_height; int min_width, max_width; int min_height, max_height; compute_virtual_size_for_configuration (app->current_configuration, &req_width, &req_height); gnome_rr_screen_get_ranges (app->screen, &min_width, &max_width, &min_height, &max_height); #if 0 g_debug ("X Server supports:"); g_debug ("min_width = %d, max_width = %d", min_width, max_width); g_debug ("min_height = %d, max_height = %d", min_height, max_height); g_debug ("Requesting size of %dx%d", req_width, req_height); #endif if (!(min_width <= req_width && req_width <= max_width && min_height <= req_height && req_height <= max_height)) { /* FIXME: present a useful dialog, maybe even before the user tries to Apply */ #if 0 g_debug ("Your X server needs a larger Virtual size!"); #endif } } /* Callback for dbus_g_proxy_begin_call() */ static void apply_configuration_returned_cb (DBusGProxy *proxy, DBusGProxyCall *call_id, void *data) { App *app = data; gboolean success; GError *error; g_assert (call_id == app->proxy_call); error = NULL; success = dbus_g_proxy_end_call (proxy, call_id, &error, G_TYPE_INVALID); if (!success) { error_message (app, _("Could not apply the selected configuration"), error->message); g_error_free (error); } g_object_unref (app->proxy); app->proxy = NULL; dbus_g_connection_unref (app->connection); app->connection = NULL; app->proxy_call = NULL; gtk_widget_set_sensitive (app->dialog, TRUE); } static void apply (App *app) { GError *error = NULL; gnome_rr_config_sanitize (app->current_configuration); check_required_virtual_size (app); foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area)); if (!gnome_rr_config_save (app->current_configuration, &error)) { error_message (app, _("Could not save the monitor configuration"), error->message); g_error_free (error); return; } g_assert (app->connection == NULL); g_assert (app->proxy == NULL); g_assert (app->proxy_call == NULL); app->connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error); if (app->connection == NULL) { error_message (app, _("Could not get session bus while applying display configuration"), error->message); g_error_free (error); return; } app->proxy = dbus_g_proxy_new_for_name (app->connection, "org.gnome.SettingsDaemon", "/org/gnome/SettingsDaemon/XRANDR", "org.gnome.SettingsDaemon.XRANDR"); if (!app->proxy) { error_message (app, _("Could not get org.gnome.SettingsDaemon.XRANDR"), NULL); dbus_g_connection_unref (app->connection); app->connection = NULL; return; } gtk_widget_set_sensitive (app->dialog, FALSE); app->proxy_call = dbus_g_proxy_begin_call (app->proxy, "ApplyConfiguration", apply_configuration_returned_cb, app, NULL, G_TYPE_INVALID, G_TYPE_INVALID); } #if 0 /* Returns whether the graphics driver doesn't advertise RANDR 1.2 features, and just 1.0 */ static gboolean driver_is_randr_10 (GnomeRRConfig *config) { /* In the Xorg code, see xserver/randr/rrinfo.c:RRScanOldConfig(). It gets * called when the graphics driver doesn't support RANDR 1.2 yet, just 1.0. * In that case, the X server's base code (which supports RANDR 1.2) will * simulate having a single output called "default". For drivers that *do* * support RANDR 1.2, the separate outputs will be named differently, we * hope. * * This heuristic is courtesy of Dirk Mueller * * FIXME: however, we don't even check for XRRQueryVersion() returning 1.2, neither * here nor in gnome-desktop/libgnomedesktop*.c. Do we need to check for that, * or is gnome_rr_screen_new()'s return value sufficient? */ return (count_all_outputs (config) == 1 && strcmp (config->outputs[0]->name, "default") == 0); } #endif static void on_detect_displays (GtkWidget *widget, gpointer data) { App *app = data; GError *error; error = NULL; if (!gnome_rr_screen_refresh (app->screen, &error)) { if (error) { error_message (app, _("Could not detect displays"), error->message); g_error_free (error); } } } #define SHOW_ICON_KEY "/apps/gnome_settings_daemon/xrandr/show_notification_icon" static void on_show_icon_toggled (GtkWidget *widget, gpointer data) { GtkToggleButton *tb = GTK_TOGGLE_BUTTON (widget); App *app = data; gconf_client_set_bool (app->client, SHOW_ICON_KEY, gtk_toggle_button_get_active (tb), NULL); } static GnomeOutputInfo * get_nearest_output (GnomeRRConfig *configuration, int x, int y) { int i; int nearest_index; int nearest_dist; nearest_index = -1; nearest_dist = G_MAXINT; for (i = 0; configuration->outputs[i] != NULL; i++) { GnomeOutputInfo *output; int dist_x, dist_y; output = configuration->outputs[i]; if (!(output->connected && output->on)) continue; if (x < output->x) dist_x = output->x - x; else if (x >= output->x + output->width) dist_x = x - (output->x + output->width) + 1; else dist_x = 0; if (y < output->y) dist_y = output->y - y; else if (y >= output->y + output->height) dist_y = y - (output->y + output->height) + 1; else dist_y = 0; if (MIN (dist_x, dist_y) < nearest_dist) { nearest_dist = MIN (dist_x, dist_y); nearest_index = i; } } if (nearest_index != -1) return configuration->outputs[nearest_index]; else return NULL; } /* Gets the output that contains the largest intersection with the window. * Logic stolen from gdk_screen_get_monitor_at_window(). */ static GnomeOutputInfo * get_output_for_window (GnomeRRConfig *configuration, GdkWindow *window) { GdkRectangle win_rect; int i; int largest_area; int largest_index; gdk_window_get_geometry (window, &win_rect.x, &win_rect.y, &win_rect.width, &win_rect.height, NULL); gdk_window_get_origin (window, &win_rect.x, &win_rect.y); largest_area = 0; largest_index = -1; for (i = 0; configuration->outputs[i] != NULL; i++) { GnomeOutputInfo *output; GdkRectangle output_rect, intersection; output = configuration->outputs[i]; output_rect.x = output->x; output_rect.y = output->y; output_rect.width = output->width; output_rect.height = output->height; if (output->connected && gdk_rectangle_intersect (&win_rect, &output_rect, &intersection)) { int area; area = intersection.width * intersection.height; if (area > largest_area) { largest_area = area; largest_index = i; } } } if (largest_index != -1) return configuration->outputs[largest_index]; else return get_nearest_output (configuration, win_rect.x + win_rect.width / 2, win_rect.y + win_rect.height / 2); } /* We select the current output, i.e. select the one being edited, based on * which output is showing the configuration dialog. */ static void select_current_output_from_dialog_position (App *app) { if (GTK_WIDGET_REALIZED (app->dialog)) { GnomeOutputInfo *output; output = get_output_for_window (app->current_configuration, app->dialog->window); if (output) app->current_output = output; } rebuild_gui (app); } /* This is a GtkWidget::map-event handler. We wait for the display-properties * dialog to be mapped, and then we select the output which corresponds to the * monitor on which the dialog is being shown. */ static gboolean dialog_map_event_cb (GtkWidget *widget, GdkEventAny *event, gpointer data) { App *app = data; select_current_output_from_dialog_position (app); return FALSE; } static void hide_help_button (App *app) { GtkWidget *action_area; GList *children; GList *l; action_area = gtk_dialog_get_action_area (GTK_DIALOG (app->dialog)); children = gtk_container_get_children (GTK_CONTAINER (action_area)); for (l = children; l; l = l->next) { GtkWidget *child; int response; child = GTK_WIDGET (l->data); response = gtk_dialog_get_response_for_widget (GTK_DIALOG (app->dialog), child); if (response == GTK_RESPONSE_HELP) { gtk_widget_hide (child); return; } } } static void run_application (App *app) { #ifndef GLADEDIR #define GLADEDIR "." #endif #define GLADE_FILE GLADEDIR "/display-capplet.glade" GladeXML *xml; GtkWidget *align; GError *error; xml = glade_xml_new (GLADE_FILE, NULL, NULL); if (!xml) { g_warning ("Could not open " GLADE_FILE); return; } error = NULL; app->screen = gnome_rr_screen_new (gdk_screen_get_default (), on_screen_changed, app, &error); if (!app->screen) { error_message (NULL, _("Could not get screen information"), error->message); g_error_free (error); g_object_unref (xml); return; } app->client = gconf_client_get_default (); app->dialog = glade_xml_get_widget (xml, "dialog"); g_signal_connect_after (app->dialog, "map-event", G_CALLBACK (dialog_map_event_cb), app); gtk_window_set_default_icon_name ("gnome-display-properties"); gtk_window_set_icon_name (GTK_WINDOW (app->dialog), "gnome-display-properties"); app->current_monitor_event_box = glade_xml_get_widget (xml, "current_monitor_event_box"); app->current_monitor_label = glade_xml_get_widget (xml, "current_monitor_label"); app->monitor_on_radio = glade_xml_get_widget (xml, "monitor_on_radio"); app->monitor_off_radio = glade_xml_get_widget (xml, "monitor_off_radio"); g_signal_connect (app->monitor_on_radio, "toggled", G_CALLBACK (monitor_on_off_toggled_cb), app); g_signal_connect (app->monitor_off_radio, "toggled", G_CALLBACK (monitor_on_off_toggled_cb), app); app->resolution_combo = glade_xml_get_widget (xml, "resolution_combo"); g_signal_connect (app->resolution_combo, "changed", G_CALLBACK (on_resolution_changed), app); app->refresh_combo = glade_xml_get_widget (xml, "refresh_combo"); g_signal_connect (app->refresh_combo, "changed", G_CALLBACK (on_rate_changed), app); app->rotation_combo = glade_xml_get_widget (xml, "rotation_combo"); g_signal_connect (app->rotation_combo, "changed", G_CALLBACK (on_rotation_changed), app); app->clone_checkbox = glade_xml_get_widget (xml, "clone_checkbox"); g_signal_connect (app->clone_checkbox, "toggled", G_CALLBACK (on_clone_changed), app); g_signal_connect (glade_xml_get_widget (xml, "detect_displays_button"), "clicked", G_CALLBACK (on_detect_displays), app); app->show_icon_checkbox = glade_xml_get_widget (xml, "show_notification_icon"); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (app->show_icon_checkbox), gconf_client_get_bool (app->client, SHOW_ICON_KEY, NULL)); g_signal_connect (app->show_icon_checkbox, "toggled", G_CALLBACK (on_show_icon_toggled), app); app->panel_checkbox = glade_xml_get_widget (xml, "panel_checkbox"); make_text_combo (app->resolution_combo, 4); make_text_combo (app->refresh_combo, 3); make_text_combo (app->rotation_combo, -1); g_assert (app->panel_checkbox); /* Scroll Area */ app->area = (GtkWidget *)foo_scroll_area_new (); g_object_set_data (G_OBJECT (app->area), "app", app); /* FIXME: this should be computed dynamically */ foo_scroll_area_set_min_size (FOO_SCROLL_AREA (app->area), -1, 200); gtk_widget_show (app->area); g_signal_connect (app->area, "paint", G_CALLBACK (on_area_paint), app); g_signal_connect (app->area, "viewport_changed", G_CALLBACK (on_viewport_changed), app); align = glade_xml_get_widget (xml, "align"); gtk_container_add (GTK_CONTAINER (align), app->area); /* Until we have help to show, we'll just hide the Help button */ hide_help_button (app); on_screen_changed (app->screen, app); g_object_unref (xml); restart: switch (gtk_dialog_run (GTK_DIALOG (app->dialog))) { default: /* Fall Through */ case GTK_RESPONSE_DELETE_EVENT: case GTK_RESPONSE_CLOSE: #if 0 g_debug ("Close"); #endif break; case GTK_RESPONSE_HELP: #if 0 g_debug ("Help"); #endif goto restart; break; case GTK_RESPONSE_APPLY: apply (app); goto restart; break; } gtk_widget_destroy (app->dialog); gnome_rr_screen_destroy (app->screen); g_object_unref (app->client); } int main (int argc, char **argv) { App *app; bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR); bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); textdomain (GETTEXT_PACKAGE); gtk_init (&argc, &argv); app = g_new0 (App, 1); run_application (app); g_free (app); return 0; }