diff options
Diffstat (limited to 'capplets/display/xrandr-capplet.c')
| -rw-r--r-- | capplets/display/xrandr-capplet.c | 2571 |
1 files changed, 2571 insertions, 0 deletions
diff --git a/capplets/display/xrandr-capplet.c b/capplets/display/xrandr-capplet.c new file mode 100644 index 00000000..94de7771 --- /dev/null +++ b/capplets/display/xrandr-capplet.c @@ -0,0 +1,2571 @@ +/* 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 <[email protected]> + */ + +#include <config.h> +#include <string.h> +#include <stdlib.h> +#include <sys/wait.h> + +#include <gtk/gtk.h> +#include "scrollarea.h" +#define MATE_DESKTOP_USE_UNSTABLE_API +#include <libmateui/mate-rr.h> +#include <libmateui/mate-rr-config.h> +#include <libmateui/mate-rr-labeler.h> +#include <gdk/gdkx.h> +#include <X11/Xlib.h> +#include <glib/gi18n.h> +#include <mateconf/mateconf-client.h> +#include <dbus/dbus-glib.h> +#include <dbus/dbus-glib-bindings.h> + +typedef struct App App; +typedef struct GrabInfo GrabInfo; + +struct App +{ + MateRRScreen *screen; + MateRRConfig *current_configuration; + MateRRLabeler *labeler; + MateOutputInfo *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; + + /* We store the event timestamp when the Apply button is clicked */ + GtkWidget *apply_button; + guint32 apply_button_clicked_timestamp; + + GtkWidget *area; + gboolean ignore_gui_changes; + MateConfClient *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; + + enum { + APPLYING_VERSION_1, + APPLYING_VERSION_2 + } apply_configuration_state; +}; + +/* Response codes for custom buttons in the main dialog */ +enum { + RESPONSE_MAKE_DEFAULT = 1 +}; + +static void rebuild_gui (App *app); +static void on_clone_changed (GtkWidget *box, gpointer data); +static void on_rate_changed (GtkComboBox *box, gpointer data); +static gboolean output_overlaps (MateOutputInfo *output, MateRRConfig *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 (MateOutputInfo *output, int *w, int *h); +static void apply_configuration_returned_cb (DBusGProxy *proxy, DBusGProxyCall *call_id, void *data); +static gboolean get_clone_size (MateRRScreen *screen, int *width, int *height); +static gboolean output_info_supports_mode (App *app, MateOutputInfo *info, int width, int height); + +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); + + if (secondary_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 void +on_screen_changed (MateRRScreen *scr, + gpointer data) +{ + MateRRConfig *current; + App *app = data; + + current = mate_rr_config_new_current (app->screen); + + if (app->current_configuration) + mate_rr_config_free (app->current_configuration); + + app->current_configuration = current; + app->current_output = NULL; + + if (app->labeler) { + mate_rr_labeler_hide (app->labeler); + g_object_unref (app->labeler); + } + + app->labeler = mate_rr_labeler_new (app->current_configuration); + + 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, + MateRRRotation 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 MateRRMode ** +get_current_modes (App *app) +{ + MateRROutput *output; + + if (app->current_configuration->clone) + { + return mate_rr_screen_list_clone_modes (app->screen); + } + else + { + if (!app->current_output) + return NULL; + + output = mate_rr_screen_get_output_by_name ( + app->screen, app->current_output->name); + + if (!output) + return NULL; + + return mate_rr_output_list_modes (output); + } +} + +static void +rebuild_rotation_combo (App *app) +{ + typedef struct + { + MateRRRotation rotation; + const char * name; + } RotationInfo; + static const RotationInfo rotations[] = { + { MATE_RR_ROTATION_0, N_("Normal") }, + { MATE_RR_ROTATION_90, N_("Left") }, + { MATE_RR_ROTATION_270, N_("Right") }, + { MATE_RR_ROTATION_180, N_("Upside Down") }, + }; + const char *selection; + MateRRRotation 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 (mate_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, _("Normal")); +} + +static char * +make_rate_string (int hz) +{ + return g_strdup_printf (_("%d Hz"), hz); +} + +static void +rebuild_rate_combo (App *app) +{ + GHashTable *rates; + MateRRMode **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) + { + MateRRMode *mode = modes[i]; + int width, height, rate; + + width = mate_rr_mode_get_width (mode); + height = mate_rr_mode_get_height (mode); + rate = mate_rr_mode_get_freq (mode); + + if (width == app->current_output->width && + height == app->current_output->height) + { + add_key (app->refresh_combo, + idle_free (make_rate_string (rate)), + 0, 0, rate, -1); + + if (rate > best) + best = rate; + } + } + + if (!combo_select (app->refresh_combo, idle_free (make_rate_string (app->current_output->rate)))) + combo_select (app->refresh_combo, idle_free (make_rate_string (best))); +} + +static int +count_active_outputs (App *app) +{ + int i, count = 0; + + for (i = 0; app->current_configuration->outputs[i] != NULL; ++i) + { + MateOutputInfo *output = app->current_configuration->outputs[i]; + if (output->on) + count++; + } + + return count; +} + +#if 0 +static int +count_all_outputs (MateRRConfig *config) +{ + int i; + + for (i = 0; config->outputs[i] != NULL; i++) + ; + + return i; +} +#endif + +/* Computes whether "Mirror Screens" (clone mode) is supported based on these criteria: + * + * 1. There is an available size for cloning. + * + * 2. There are 2 or more connected outputs that support that size. + */ +static gboolean +mirror_screens_is_supported (App *app) +{ + int clone_width, clone_height; + gboolean have_clone_size; + gboolean mirror_is_supported; + + mirror_is_supported = FALSE; + + have_clone_size = get_clone_size (app->screen, &clone_width, &clone_height); + + if (have_clone_size) { + int i; + int num_outputs_with_clone_size; + + num_outputs_with_clone_size = 0; + + for (i = 0; app->current_configuration->outputs[i] != NULL; i++) + { + MateOutputInfo *output = app->current_configuration->outputs[i]; + + /* We count the connected outputs that support the clone size. It + * doesn't matter if those outputs aren't actually On currently; we + * will turn them on in on_clone_changed(). + */ + if (output->connected && output_info_supports_mode (app, output, clone_width, clone_height)) + num_outputs_with_clone_size++; + } + + if (num_outputs_with_clone_size >= 2) + mirror_is_supported = TRUE; + } + + return mirror_is_supported; +} + +static void +rebuild_mirror_screens (App *app) +{ + gboolean mirror_is_active; + gboolean mirror_is_supported; + + g_signal_handlers_block_by_func (app->clone_checkbox, G_CALLBACK (on_clone_changed), app); + + mirror_is_active = app->current_configuration && app->current_configuration->clone; + + /* If mirror_is_active, then it *must* be possible to turn mirroring off */ + mirror_is_supported = mirror_is_active || mirror_screens_is_supported (app); + + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (app->clone_checkbox), mirror_is_active); + gtk_widget_set_sensitive (app->clone_checkbox, mirror_is_supported); + + g_signal_handlers_unblock_by_func (app->clone_checkbox, G_CALLBACK (on_clone_changed), app); +} + +static void +rebuild_current_monitor_label (App *app) +{ + char *str, *tmp; + GdkColor color; + gboolean use_color; + + if (app->current_output) + { + if (app->current_configuration->clone) + tmp = g_strdup (_("Mirror Screens")); + else + tmp = g_strdup_printf (_("Monitor: %s"), app->current_output->display_name); + + str = g_strdup_printf ("<b>%s</b>", tmp); + mate_rr_labeler_get_color_for_output (app->labeler, app->current_output, &color); + use_color = TRUE; + g_free (tmp); + } + else + { + str = g_strdup_printf ("<b>%s</b>", _("Monitor")); + use_color = FALSE; + } + + gtk_label_set_markup (GTK_LABEL (app->current_monitor_label), str); + g_free (str); + + if (use_color) + { + GdkColor black = { 0, 0, 0, 0 }; + + gtk_widget_modify_bg (app->current_monitor_event_box, gtk_widget_get_state (app->current_monitor_event_box), &color); + + /* Make the label explicitly black. We don't want it to follow the + * theme's colors, since the label is always shown against a light + * pastel background. See bgo#556050 + */ + gtk_widget_modify_fg (app->current_monitor_label, gtk_widget_get_state (app->current_monitor_label), &black); + } + else + { + /* Remove any modifications we did on the label's color */ + GtkRcStyle *reset_rc_style; + + reset_rc_style = gtk_rc_style_new (); + gtk_widget_modify_style (app->current_monitor_label, reset_rc_style); /* takes ownership of, and destroys, the rc style */ + } + + 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); + + sensitive = FALSE; + on_active = FALSE; + off_active = FALSE; + + if (!app->current_configuration->clone && 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; + } + + 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 char * +make_resolution_string (int width, int height) +{ + return g_strdup_printf (_("%d x %d"), width, height); +} + +static void +find_best_mode (MateRRMode **modes, int *out_width, int *out_height) +{ + int i; + + *out_width = 0; + *out_height = 0; + + for (i = 0; modes[i] != NULL; i++) + { + int w, h; + + w = mate_rr_mode_get_width (modes[i]); + h = mate_rr_mode_get_height (modes[i]); + + if (w * h > *out_width * *out_height) + { + *out_width = w; + *out_height = h; + } + } +} + +static void +rebuild_resolution_combo (App *app) +{ + int i; + MateRRMode **modes; + 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); + g_assert (app->current_output->width != 0 && app->current_output->height != 0); + + gtk_widget_set_sensitive (app->resolution_combo, TRUE); + + for (i = 0; modes[i] != NULL; ++i) + { + int width, height; + + width = mate_rr_mode_get_width (modes[i]); + height = mate_rr_mode_get_height (modes[i]); + + add_key (app->resolution_combo, + idle_free (make_resolution_string (width, height)), + width, height, 0, -1); + } + + current = idle_free (make_resolution_string (app->current_output->width, app->current_output->height)); + + if (!combo_select (app->resolution_combo, current)) + { + int best_w, best_h; + + find_best_mode (modes, &best_w, &best_h); + combo_select (app->resolution_combo, idle_free (make_resolution_string (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_mirror_screens (app); + 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; +} + +static gboolean +get_mode (GtkWidget *widget, int *width, int *height, int *freq, MateRRRotation *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 = (MateRRRotation *)&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; + MateRRRotation 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 +select_resolution_for_current_output (App *app) +{ + MateRRMode **modes; + int width, height; + + if (app->current_output->pref_width != 0 && app->current_output->pref_height != 0) + { + app->current_output->width = app->current_output->pref_width; + app->current_output->height = app->current_output->pref_height; + return; + } + + modes = get_current_modes (app); + if (!modes) + return; + + find_best_mode (modes, &width, &height); + + app->current_output->width = width; + app->current_output->height = height; +} + +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; + + if (is_on) + select_resolution_for_current_output (app); /* The refresh rate will be picked in rebuild_rate_combo() */ + + rebuild_gui (app); + foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area)); +} + +static void +realign_outputs_after_resolution_change (App *app, MateOutputInfo *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); + + if (output_that_changed->width == old_width && output_that_changed->height == old_height) + return; + + 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++) { + MateOutputInfo *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) + { + MateOutputInfo *output; + + output = app->current_configuration->outputs[i]; + if (output->connected && output->on) { + output->x = x; + output->y = 0; + x += output->width; + } + } + + /* Second pass, all the black screens */ + + for (i = 0; app->current_configuration->outputs[i]; ++i) + { + MateOutputInfo *output; + + output = app->current_configuration->outputs[i]; + if (!(output->connected && output->on)) { + output->x = x; + output->y = 0; + x += output->width; + } + } + +} + +/* FIXME: this function is copied from mate-settings-daemon/plugins/xrandr/gsd-xrandr-manager.c. + * Do we need to put this function in mate-desktop for public use? + */ +static gboolean +get_clone_size (MateRRScreen *screen, int *width, int *height) +{ + MateRRMode **modes = mate_rr_screen_list_clone_modes (screen); + int best_w, best_h; + int i; + + best_w = 0; + best_h = 0; + + for (i = 0; modes[i] != NULL; ++i) { + MateRRMode *mode = modes[i]; + int w, h; + + w = mate_rr_mode_get_width (mode); + h = mate_rr_mode_get_height (mode); + + if (w * h > best_w * best_h) { + best_w = w; + best_h = h; + } + } + + if (best_w > 0 && best_h > 0) { + if (width) + *width = best_w; + if (height) + *height = best_h; + + return TRUE; + } + + return FALSE; +} + +static gboolean +output_info_supports_mode (App *app, MateOutputInfo *info, int width, int height) +{ + MateRROutput *output; + MateRRMode **modes; + int i; + + if (!info->connected) + return FALSE; + + output = mate_rr_screen_get_output_by_name (app->screen, info->name); + if (!output) + return FALSE; + + modes = mate_rr_output_list_modes (output); + + for (i = 0; modes[i]; i++) { + if (mate_rr_mode_get_width (modes[i]) == width + && mate_rr_mode_get_height (modes[i]) == height) + return TRUE; + } + + return FALSE; +} + +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; + int width, height; + + 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; + } + } + + /* Turn on all the connected screens that support the best clone mode. + * The user may hit "Mirror Screens", but he shouldn't have to turn on + * all the required outputs as well. + */ + + get_clone_size (app->screen, &width, &height); + + for (i = 0; app->current_configuration->outputs[i]; i++) { + if (output_info_supports_mode (app, app->current_configuration->outputs[i], width, height)) { + app->current_configuration->outputs[i]->on = TRUE; + app->current_configuration->outputs[i]->width = width; + app->current_configuration->outputs[i]->height = height; + } + } + } + else + { + if (output_overlaps (app->current_output, app->current_configuration)) + lay_out_outputs_horizontally (app); + } + + rebuild_gui (app); +} + +static void +get_geometry (MateOutputInfo *output, int *w, int *h) +{ + if (output->on) + { + *h = output->height; + *w = output->width; + } + else + { + *h = output->pref_height; + *w = output->pref_width; + } + if ((output->rotation & MATE_RR_ROTATION_90) || (output->rotation & MATE_RR_ROTATION_270)) + { + int tmp; + tmp = *h; + *h = *w; + *w = tmp; + } +} + +#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) + { + MateOutputInfo *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 +{ + MateOutputInfo *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 (MateOutputInfo *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 (MateOutputInfo *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 (MateRRConfig *config, GArray *edges) +{ + int i; + + for (i = 0; config->outputs[i]; ++i) + { + MateOutputInfo *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 (MateOutputInfo *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 (MateOutputInfo *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 (MateOutputInfo *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 (MateOutputInfo *output, MateRRConfig *config) +{ + int i; + GdkRectangle output_rect; + + get_output_rect (output, &output_rect); + + for (i = 0; config->outputs[i]; ++i) + { + MateOutputInfo *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 +mate_rr_config_is_aligned (MateRRConfig *config, GArray *edges) +{ + int i; + gboolean result = TRUE; + + for (i = 0; config->outputs[i]; ++i) + { + MateOutputInfo *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; + } +} + +/* Sets a mouse cursor for a widget's window. As a hack, you can pass + * GDK_BLANK_CURSOR to mean "set the cursor to NULL" (i.e. reset the widget's + * window's cursor to its default). + */ +static void +set_cursor (GtkWidget *widget, GdkCursorType type) +{ + GdkCursor *cursor; + GdkWindow *window; + + if (type == GDK_BLANK_CURSOR) + cursor = NULL; + else + cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget), type); + + window = gtk_widget_get_window (widget); + + if (window) + gdk_window_set_cursor (window, cursor); + + if (cursor) + gdk_cursor_unref (cursor); +} + +static void +set_monitors_tooltip (App *app, gboolean is_dragging) +{ + const char *text; + + if (is_dragging) + text = NULL; + else + text = _("Select a monitor to change its properties; drag it to rearrange its placement."); + + gtk_widget_set_tooltip_text (app->area, text); +} + +static void +on_output_event (FooScrollArea *area, + FooScrollAreaEvent *event, + gpointer data) +{ + MateOutputInfo *output = data; + App *app = g_object_get_data (G_OBJECT (area), "app"); + + /* If the mouse is inside the outputs, set the cursor to "you can move me". See + * on_canvas_event() for where we reset the cursor to the default if it + * exits the outputs' area. + */ + if (!app->current_configuration->clone && get_n_connected (app) > 1) + set_cursor (GTK_WIDGET (area), GDK_FLEUR); + + if (event->type == FOO_BUTTON_PRESS) + { + GrabInfo *info; + + app->current_output = output; + + rebuild_gui (app); + set_monitors_tooltip (app, TRUE); + + 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 (mate_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); + set_monitors_tooltip (app, FALSE); + + 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); + } + } +} + +static void +on_canvas_event (FooScrollArea *area, + FooScrollAreaEvent *event, + gpointer data) +{ + /* If the mouse exits the outputs, reset the cursor to the default. See + * on_output_event() for where we set the cursor to the movement cursor if + * it is over one of the outputs. + */ + set_cursor (GTK_WIDGET (area), GDK_BLANK_CURSOR); +} + +static PangoLayout * +get_display_name (App *app, + MateOutputInfo *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; + GtkStyle *widget_style; + + widget = GTK_WIDGET (area); + + foo_scroll_area_get_viewport (area, &viewport); + widget_style = gtk_widget_get_style (widget); + + 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); + + foo_scroll_area_add_input_from_fill (area, cr, on_canvas_event, NULL); + + 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); + MateOutputInfo *output = g_list_nth (connected_outputs, i)->data; + PangoLayout *layout = get_display_name (app, output); + PangoRectangle ink_extent, log_extent; + GdkRectangle viewport; + GdkColor output_color; + double r, g, b; + double available_w; + double factor; + + 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); + + /* rotation is already applied in get_geometry */ + + if (output->rotation & MATE_RR_REFLECT_X) + cairo_scale (cr, -1, 1); + + if (output->rotation & MATE_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); + + mate_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, &ink_extent, &log_extent); + + available_w = w * scale + 0.5 - 6; /* Same as the inner rectangle's width, minus 1 pixel of padding on each side */ + if (available_w < ink_extent.width) + factor = available_w / ink_extent.width; + else + factor = 1.0; + + cairo_move_to (cr, + x + ((w * scale + 0.5) - factor * log_extent.width) / 2, + y + ((h * scale + 0.5) - factor * log_extent.height) / 2); + + cairo_scale (cr, factor, factor); + + 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 (MateRRConfig *config, int *ret_width, int *ret_height) +{ + int i; + int width, height; + + width = height = 0; + + for (i = 0; config->outputs[i] != NULL; i++) + { + MateOutputInfo *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); + + mate_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 + } +} + +static void +begin_version2_apply_configuration (App *app, GdkWindow *parent_window, guint32 timestamp) +{ + XID parent_window_xid; + + parent_window_xid = GDK_WINDOW_XID (parent_window); + + app->proxy = dbus_g_proxy_new_for_name (app->connection, + "org.mate.SettingsDaemon", + "/org/mate/SettingsDaemon/XRANDR", + "org.mate.SettingsDaemon.XRANDR_2"); + g_assert (app->proxy != NULL); /* that call does not fail unless we pass bogus names */ + + app->apply_configuration_state = APPLYING_VERSION_2; + app->proxy_call = dbus_g_proxy_begin_call (app->proxy, "ApplyConfiguration", + apply_configuration_returned_cb, app, + NULL, + G_TYPE_INT64, (gint64) parent_window_xid, + G_TYPE_INT64, (gint64) timestamp, + G_TYPE_INVALID, + G_TYPE_INVALID); + /* FIXME: we don't check for app->proxy_call == NULL, which could happen if + * the connection was disconnected. This is left as an exercise for the + * reader. + */ +} + +static void +begin_version1_apply_configuration (App *app) +{ + app->proxy = dbus_g_proxy_new_for_name (app->connection, + "org.mate.SettingsDaemon", + "/org/mate/SettingsDaemon/XRANDR", + "org.mate.SettingsDaemon.XRANDR"); + g_assert (app->proxy != NULL); /* that call does not fail unless we pass bogus names */ + + app->apply_configuration_state = APPLYING_VERSION_1; + app->proxy_call = dbus_g_proxy_begin_call (app->proxy, "ApplyConfiguration", + apply_configuration_returned_cb, app, + NULL, + G_TYPE_INVALID, + G_TYPE_INVALID); + /* FIXME: we don't check for app->proxy_call == NULL, which could happen if + * the connection was disconnected. This is left as an exercise for the + * reader. + */ +} + +static void +ensure_current_configuration_is_saved (void) +{ + MateRRScreen *rr_screen; + MateRRConfig *rr_config; + + /* Normally, mate_rr_config_save() creates a backup file based on the + * old monitors.xml. However, if *that* file didn't exist, there is + * nothing from which to create a backup. So, here we'll save the + * current/unchanged configuration and then let our caller call + * mate_rr_config_save() again with the new/changed configuration, so + * that there *will* be a backup file in the end. + */ + + rr_screen = mate_rr_screen_new (gdk_screen_get_default (), NULL, NULL, NULL); /* NULL-GError */ + if (!rr_screen) + return; + + rr_config = mate_rr_config_new_current (rr_screen); + mate_rr_config_save (rr_config, NULL); /* NULL-GError */ + + mate_rr_config_free (rr_config); + mate_rr_screen_destroy (rr_screen); +} + +/* 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) { + if (app->apply_configuration_state == APPLYING_VERSION_2 + && g_error_matches (error, DBUS_GERROR, DBUS_GERROR_UNKNOWN_METHOD)) { + g_error_free (error); + + g_object_unref (app->proxy); + app->proxy = NULL; + + begin_version1_apply_configuration (app); + return; + } else { + /* We don't pop up an error message; mate-settings-daemon already does that + * in case the selected RANDR configuration could not be applied. + */ + 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 gboolean +sanitize_and_save_configuration (App *app) +{ + GError *error; + + mate_rr_config_sanitize (app->current_configuration); + + check_required_virtual_size (app); + + foo_scroll_area_invalidate (FOO_SCROLL_AREA (app->area)); + + ensure_current_configuration_is_saved (); + + error = NULL; + if (!mate_rr_config_save (app->current_configuration, &error)) + { + error_message (app, _("Could not save the monitor configuration"), error->message); + g_error_free (error); + return FALSE; + } + + return TRUE; +} + +static void +apply (App *app) +{ + GError *error = NULL; + + if (!sanitize_and_save_configuration (app)) + 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; + } + + gtk_widget_set_sensitive (app->dialog, FALSE); + + begin_version2_apply_configuration (app, gtk_widget_get_window (app->dialog), app->apply_button_clicked_timestamp); +} + +#if 0 +/* Returns whether the graphics driver doesn't advertise RANDR 1.2 features, and just 1.0 */ +static gboolean +driver_is_randr_10 (MateRRConfig *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 <[email protected]> + * + * FIXME: however, we don't even check for XRRQueryVersion() returning 1.2, neither + * here nor in mate-desktop/libmatedesktop*.c. Do we need to check for that, + * or is mate_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 (!mate_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/mate_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; + + mateconf_client_set_bool (app->client, SHOW_ICON_KEY, + gtk_toggle_button_get_active (tb), NULL); +} + +static MateOutputInfo * +get_nearest_output (MateRRConfig *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++) + { + MateOutputInfo *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 MateOutputInfo * +get_output_for_window (MateRRConfig *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++) + { + MateOutputInfo *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_get_realized (app->dialog)) + app->current_output = get_output_for_window (app->current_configuration, gtk_widget_get_window (app->dialog)); + else + app->current_output = NULL; + + 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 +apply_button_clicked_cb (GtkButton *button, gpointer data) +{ + App *app = data; + + /* We simply store the timestamp at which the Apply button was clicked. + * We'll just wait for the dialog to return from gtk_dialog_run(), and + * *then* use the timestamp when applying the RANDR configuration. + */ + + app->apply_button_clicked_timestamp = gtk_get_current_event_time (); +} + +static void +success_dialog_for_make_default (App *app) +{ + GtkWidget *dialog; + + dialog = gtk_message_dialog_new (GTK_WINDOW (app->dialog), + GTK_DIALOG_MODAL, + GTK_MESSAGE_INFO, + GTK_BUTTONS_OK, + _("The monitor configuration has been saved")); + gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), + _("This configuration will be used the next time someone logs in.")); + + gtk_dialog_run (GTK_DIALOG (dialog)); + gtk_widget_destroy (dialog); +} + +static void +error_dialog_for_make_default (App *app, const char *error_text) +{ + error_message (app, _("Could not set the default configuration for monitors"), error_text); +} + +static void +make_default (App *app) +{ + char *command_line; + char *source_filename; + char *dest_filename; + char *dest_basename; + char *std_error; + gint exit_status; + GError *error; + + if (!sanitize_and_save_configuration (app)) + return; + + dest_filename = mateconf_client_get_string (app->client, "/apps/mate_settings_daemon/xrandr/default_configuration_file", NULL); + if (!dest_filename) + return; /* FIXME: present an error? */ + + dest_basename = g_path_get_basename (dest_filename); + + source_filename = mate_rr_config_get_intended_filename (); + + command_line = g_strdup_printf ("pkexec %s/mate-display-properties-install-systemwide %s %s", + SBINDIR, + source_filename, + dest_basename); + + error = NULL; + if (!g_spawn_command_line_sync (command_line, NULL, &std_error, &exit_status, &error)) + { + error_dialog_for_make_default (app, error->message); + g_error_free (error); + } + else if (!WIFEXITED (exit_status) || WEXITSTATUS (exit_status) != 0) + { + error_dialog_for_make_default (app, std_error); + } + else + { + success_dialog_for_make_default (app); + } + + g_free (std_error); + g_free (dest_filename); + g_free (dest_basename); + g_free (source_filename); + g_free (command_line); +} + +static GtkWidget* +_gtk_builder_get_widget (GtkBuilder *builder, const gchar *name) +{ + return GTK_WIDGET (gtk_builder_get_object (builder, name)); +} + +static void +run_application (App *app) +{ +#ifndef UIDIR +#define UIDIR "." +#endif +#define UI_FILE UIDIR "/display-capplet.ui" + GtkBuilder *builder; + GtkWidget *align; + GError *error; + + error = NULL; + builder = gtk_builder_new (); + + if (gtk_builder_add_from_file (builder, UI_FILE, &error) == 0) + { + g_warning ("Could not parse UI definition: %s", error->message); + g_error_free (error); + g_object_unref (builder); + return; + } + + app->screen = mate_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 (builder); + return; + } + + app->client = mateconf_client_get_default (); + + app->dialog = _gtk_builder_get_widget (builder, "dialog"); + g_signal_connect_after (app->dialog, "map-event", + G_CALLBACK (dialog_map_event_cb), app); + + gtk_window_set_default_icon_name ("mate-preferences-desktop-display"); + gtk_window_set_icon_name (GTK_WINDOW (app->dialog), + "mate-preferences-desktop-display"); + + app->current_monitor_event_box = _gtk_builder_get_widget (builder, + "current_monitor_event_box"); + app->current_monitor_label = _gtk_builder_get_widget (builder, + "current_monitor_label"); + + app->monitor_on_radio = _gtk_builder_get_widget (builder, + "monitor_on_radio"); + app->monitor_off_radio = _gtk_builder_get_widget (builder, + "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 = _gtk_builder_get_widget (builder, + "resolution_combo"); + g_signal_connect (app->resolution_combo, "changed", + G_CALLBACK (on_resolution_changed), app); + + app->refresh_combo = _gtk_builder_get_widget (builder, "refresh_combo"); + g_signal_connect (app->refresh_combo, "changed", + G_CALLBACK (on_rate_changed), app); + + app->rotation_combo = _gtk_builder_get_widget (builder, "rotation_combo"); + g_signal_connect (app->rotation_combo, "changed", + G_CALLBACK (on_rotation_changed), app); + + app->clone_checkbox = _gtk_builder_get_widget (builder, "clone_checkbox"); + g_signal_connect (app->clone_checkbox, "toggled", + G_CALLBACK (on_clone_changed), app); + + g_signal_connect (_gtk_builder_get_widget (builder, "detect_displays_button"), + "clicked", G_CALLBACK (on_detect_displays), app); + + app->show_icon_checkbox = _gtk_builder_get_widget (builder, + "show_notification_icon"); + + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (app->show_icon_checkbox), + mateconf_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 = _gtk_builder_get_widget (builder, "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); + + set_monitors_tooltip (app, FALSE); + + /* 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 = _gtk_builder_get_widget (builder, "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); + + app->apply_button = _gtk_builder_get_widget (builder, "apply_button"); + g_signal_connect (app->apply_button, "clicked", + G_CALLBACK (apply_button_clicked_cb), app); + + on_screen_changed (app->screen, app); + + g_object_unref (builder); + +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; + + case RESPONSE_MAKE_DEFAULT: + make_default (app); + goto restart; + break; + } + + gtk_widget_destroy (app->dialog); + mate_rr_screen_destroy (app->screen); + g_object_unref (app->client); +} + +int +main (int argc, char **argv) +{ + App *app; + + bindtextdomain (GETTEXT_PACKAGE, MATELOCALEDIR); + 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; +} |