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Diffstat (limited to 'src/terminal-screen-container.c')
| -rw-r--r-- | src/terminal-screen-container.c | 391 |
1 files changed, 391 insertions, 0 deletions
diff --git a/src/terminal-screen-container.c b/src/terminal-screen-container.c new file mode 100644 index 0000000..459157b --- /dev/null +++ b/src/terminal-screen-container.c @@ -0,0 +1,391 @@ +/* + * Copyright © 2008, 2010, 2011 Christian Persch + * + * 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 3 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, see <http://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include "terminal-screen-container.h" +#include "terminal-debug.h" + +#if 0 +#define USE_SCROLLED_WINDOW +#endif + +#include <gtk/gtk.h> + +#define TERMINAL_SCREEN_CONTAINER_GET_PRIVATE(screen_container)(G_TYPE_INSTANCE_GET_PRIVATE ((screen_container), TERMINAL_TYPE_SCREEN_CONTAINER, TerminalScreenContainerPrivate)) + +struct _TerminalScreenContainerPrivate +{ + TerminalScreen *screen; +#ifdef USE_SCROLLED_WINDOW + GtkWidget *scrolled_window; +#else + GtkWidget *hbox; + GtkWidget *vscrollbar; +#endif + GtkPolicyType hscrollbar_policy; + GtkPolicyType vscrollbar_policy; +}; + +enum +{ + PROP_0, + PROP_SCREEN, + PROP_HSCROLLBAR_POLICY, + PROP_VSCROLLBAR_POLICY +}; + +G_DEFINE_TYPE (TerminalScreenContainer, terminal_screen_container, GTK_TYPE_OVERLAY) + +#define TERMINAL_SCREEN_CONTAINER_CSS_NAME "terminal-screen-container" + +/* helper functions */ + +/* Widget class implementation */ + +static void +terminal_screen_container_realize (GtkWidget *widget) +{ + + GTK_WIDGET_CLASS (terminal_screen_container_parent_class)->realize (widget); + + /* We need to realize the screen itself too, see issue #203 */ + TerminalScreenContainer *container = TERMINAL_SCREEN_CONTAINER (widget); + TerminalScreenContainerPrivate *priv = container->priv; + gtk_widget_realize (GTK_WIDGET (priv->screen)); +} + +#ifndef USE_SCROLLED_WINDOW + +static void +terminal_screen_container_style_updated (GtkWidget *widget) +{ + TerminalScreenContainer *container = TERMINAL_SCREEN_CONTAINER (widget); + TerminalScreenContainerPrivate *priv = container->priv; + GtkCornerType corner; + gboolean set; + + GTK_WIDGET_CLASS (terminal_screen_container_parent_class)->style_updated (widget); + + gtk_widget_style_get (widget, + "window-placement", &corner, + "window-placement-set", &set, + NULL); + + if (!set) { + g_object_get (gtk_widget_get_settings (widget), + "gtk-scrolled-window-placement", &corner, + NULL); + } + + switch (corner) { + case GTK_CORNER_TOP_LEFT: + case GTK_CORNER_BOTTOM_LEFT: + gtk_box_reorder_child (GTK_BOX (priv->hbox), priv->vscrollbar, -1); + break; + case GTK_CORNER_TOP_RIGHT: + case GTK_CORNER_BOTTOM_RIGHT: + gtk_box_reorder_child (GTK_BOX (priv->hbox), priv->vscrollbar, 0); + break; + default: + g_assert_not_reached (); + } +} + +#endif /* !USE_SCROLLED_WINDOW */ + +/* Class implementation */ + +static void +terminal_screen_container_init (TerminalScreenContainer *container) +{ + TerminalScreenContainerPrivate *priv; + + priv = container->priv = TERMINAL_SCREEN_CONTAINER_GET_PRIVATE (container); + + priv->hscrollbar_policy = GTK_POLICY_AUTOMATIC; + priv->vscrollbar_policy = GTK_POLICY_AUTOMATIC; +} + +static void +terminal_screen_container_constructed (GObject *object) +{ + TerminalScreenContainer *container = TERMINAL_SCREEN_CONTAINER (object); + TerminalScreenContainerPrivate *priv = container->priv; + + G_OBJECT_CLASS (terminal_screen_container_parent_class)->constructed (object); + + g_assert (priv->screen != NULL); + +#ifdef USE_SCROLLED_WINDOW +{ + GtkAdjustment *hadjustment; + GtkAdjustment *vadjustment; + + hadjustment = gtk_scrollable_get_hadjustment (GTK_SCROLLABLE (priv->screen)); + vadjustment = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (priv->screen)); + + priv->scrolled_window = gtk_scrolled_window_new (hadjustment, vadjustment); + gtk_scrolled_window_set_overlay_scrolling (GTK_SCROLLED_WINDOW (priv->scrolled_window), FALSE); + gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), + priv->hscrollbar_policy, + priv->vscrollbar_policy); + gtk_container_add (GTK_CONTAINER (priv->scrolled_window), GTK_WIDGET (priv->screen)); + + gtk_container_add (GTK_CONTAINER (container), priv->scrolled_window); + gtk_widget_show_all (priv->scrolled_window); +} +#else + priv->hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0); + + priv->vscrollbar = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, + gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (priv->screen))); + + gtk_box_pack_start (GTK_BOX (priv->hbox), GTK_WIDGET (priv->screen), TRUE, TRUE, 0); + gtk_box_pack_start (GTK_BOX (priv->hbox), priv->vscrollbar, FALSE, FALSE, 0); + + gtk_container_add (GTK_CONTAINER (container), priv->hbox); + gtk_widget_show_all (priv->hbox); +#endif + + _terminal_screen_update_scrollbar (priv->screen); +} + +static void +terminal_screen_container_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + TerminalScreenContainer *container = TERMINAL_SCREEN_CONTAINER (object); + TerminalScreenContainerPrivate *priv = container->priv; + + switch (prop_id) { + case PROP_SCREEN: + break; + case PROP_HSCROLLBAR_POLICY: + g_value_set_enum (value, priv->hscrollbar_policy); + break; + case PROP_VSCROLLBAR_POLICY: + g_value_set_enum (value, priv->vscrollbar_policy); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +terminal_screen_container_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + TerminalScreenContainer *container = TERMINAL_SCREEN_CONTAINER (object); + TerminalScreenContainerPrivate *priv = container->priv; + + switch (prop_id) { + case PROP_SCREEN: + priv->screen = g_value_get_object (value); + break; + case PROP_HSCROLLBAR_POLICY: + terminal_screen_container_set_policy (container, + g_value_get_enum (value), + priv->vscrollbar_policy); + break; + case PROP_VSCROLLBAR_POLICY: + terminal_screen_container_set_policy (container, + priv->hscrollbar_policy, + g_value_get_enum (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +terminal_screen_container_class_init (TerminalScreenContainerClass *klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + + g_type_class_add_private (gobject_class, sizeof (TerminalScreenContainerPrivate)); + + gobject_class->constructed = terminal_screen_container_constructed; + gobject_class->get_property = terminal_screen_container_get_property; + gobject_class->set_property = terminal_screen_container_set_property; + + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); + widget_class->realize = terminal_screen_container_realize; + +#ifndef USE_SCROLLED_WINDOW + widget_class->style_updated = terminal_screen_container_style_updated; + + gtk_widget_class_install_style_property (widget_class, + g_param_spec_enum ("window-placement", NULL, NULL, + GTK_TYPE_CORNER_TYPE, + GTK_CORNER_BOTTOM_RIGHT, + G_PARAM_READWRITE | + G_PARAM_STATIC_STRINGS)); + gtk_widget_class_install_style_property (widget_class, + g_param_spec_boolean ("window-placement-set", NULL, NULL, + FALSE, + G_PARAM_READWRITE | + G_PARAM_STATIC_STRINGS)); +#endif + + gtk_widget_class_set_css_name(widget_class, TERMINAL_SCREEN_CONTAINER_CSS_NAME); + + g_object_class_install_property + (gobject_class, + PROP_SCREEN, + g_param_spec_object ("screen", NULL, NULL, + TERMINAL_TYPE_SCREEN, + G_PARAM_READWRITE | + G_PARAM_CONSTRUCT_ONLY | + G_PARAM_STATIC_STRINGS)); + + g_object_class_install_property + (gobject_class, + PROP_HSCROLLBAR_POLICY, + g_param_spec_enum ("hscrollbar-policy", NULL, NULL, + GTK_TYPE_POLICY_TYPE, + GTK_POLICY_AUTOMATIC, + G_PARAM_READWRITE | + G_PARAM_STATIC_STRINGS)); + g_object_class_install_property + (gobject_class, + PROP_VSCROLLBAR_POLICY, + g_param_spec_enum ("vscrollbar-policy", NULL, NULL, + GTK_TYPE_POLICY_TYPE, + GTK_POLICY_AUTOMATIC, + G_PARAM_READWRITE | + G_PARAM_STATIC_STRINGS)); +} + +/* public API */ + +/** + * terminal_screen_container_new: + * @screen: a #TerminalScreen + * + * Returns: a new #TerminalScreenContainer for @screen + */ +GtkWidget * +terminal_screen_container_new (TerminalScreen *screen) +{ + return g_object_new (TERMINAL_TYPE_SCREEN_CONTAINER, + "screen", screen, + NULL); +} + +/** + * terminal_screen_container_get_screen: + * @container: a #TerminalScreenContainer + * + * Returns: @container's #TerminalScreen + */ +TerminalScreen * +terminal_screen_container_get_screen (TerminalScreenContainer *container) +{ + if (container == NULL) + return NULL; + + g_return_val_if_fail (TERMINAL_IS_SCREEN_CONTAINER (container), NULL); + + return container->priv->screen; +} + +/** + * terminal_screen_container_get_from_screen: + * @screen: a #TerminalScreenContainerPrivate + * + * Returns the #TerminalScreenContainer containing @screen. + */ +TerminalScreenContainer * +terminal_screen_container_get_from_screen (TerminalScreen *screen) +{ + if (screen == NULL) + return NULL; + + g_return_val_if_fail (TERMINAL_IS_SCREEN (screen), NULL); + + return TERMINAL_SCREEN_CONTAINER (gtk_widget_get_ancestor (GTK_WIDGET (screen), TERMINAL_TYPE_SCREEN_CONTAINER)); +} + +/** + * terminal_screen_container_set_policy: + * @container: a #TerminalScreenContainer + * @hpolicy: a #GtkPolicyType + * @vpolicy: a #GtkPolicyType + * + * Sets @container's scrollbar policy. + */ +void +terminal_screen_container_set_policy (TerminalScreenContainer *container, + GtkPolicyType hpolicy, + GtkPolicyType vpolicy) +{ + TerminalScreenContainerPrivate *priv; + GObject *object; + + g_return_if_fail (TERMINAL_IS_SCREEN_CONTAINER (container)); + + object = G_OBJECT (container); + priv = container->priv; + + g_object_freeze_notify (object); + + if (priv->hscrollbar_policy != hpolicy) { + priv->hscrollbar_policy = hpolicy; + g_object_notify (object, "hscrollbar-policy"); + } + if (priv->vscrollbar_policy != vpolicy) { + priv->vscrollbar_policy = vpolicy; + g_object_notify (object, "vscrollbar-policy"); + } + +#ifdef USE_SCROLLED_WINDOW + switch (vpolicy) { + case GTK_POLICY_NEVER: + vpolicy = GTK_POLICY_EXTERNAL; + break; + case GTK_POLICY_AUTOMATIC: + case GTK_POLICY_ALWAYS: + vpolicy = GTK_POLICY_ALWAYS; + break; + default: + g_assert_not_reached (); + } + + gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), hpolicy, vpolicy); +#else + switch (vpolicy) { + case GTK_POLICY_NEVER: + gtk_widget_hide (priv->vscrollbar); + break; + case GTK_POLICY_AUTOMATIC: + case GTK_POLICY_ALWAYS: + gtk_widget_show (priv->vscrollbar); + break; + default: + g_assert_not_reached (); + } +#endif /* USE_SCROLLED_WINDOW */ + + g_object_thaw_notify (object); +} |