From 0e004c696b0e68b2cff37a4c3315b022a35eaf43 Mon Sep 17 00:00:00 2001 From: Perberos Date: Thu, 1 Dec 2011 22:24:23 -0300 Subject: moving from https://github.com/perberos/mate-desktop-environment --- libcaja-private/caja-horizontal-splitter.c | 307 +++++++++++++++++++++++++++++ 1 file changed, 307 insertions(+) create mode 100644 libcaja-private/caja-horizontal-splitter.c (limited to 'libcaja-private/caja-horizontal-splitter.c') diff --git a/libcaja-private/caja-horizontal-splitter.c b/libcaja-private/caja-horizontal-splitter.c new file mode 100644 index 00000000..e31d8a6a --- /dev/null +++ b/libcaja-private/caja-horizontal-splitter.c @@ -0,0 +1,307 @@ +/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ + +/* caja-horizontal-splitter.c - A horizontal splitter with a semi gradient look + + Copyright (C) 1999, 2000 Eazel, Inc. + + The Mate Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The Mate Library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the Mate Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + + Authors: Ramiro Estrugo +*/ + +#include +#include "caja-horizontal-splitter.h" + +#include +#include + +struct CajaHorizontalSplitterDetails +{ + guint32 press_time; + int press_position; + int saved_size; +}; + +#define CLOSED_THRESHOLD 4 +#define NOMINAL_SIZE 148 +#define SPLITTER_CLICK_SLOP 4 +#define SPLITTER_CLICK_TIMEOUT 400 + +static void caja_horizontal_splitter_class_init (CajaHorizontalSplitterClass *horizontal_splitter_class); +static void caja_horizontal_splitter_init (CajaHorizontalSplitter *horizontal_splitter); + +EEL_CLASS_BOILERPLATE (CajaHorizontalSplitter, + caja_horizontal_splitter, + GTK_TYPE_HPANED) + +static void +caja_horizontal_splitter_init (CajaHorizontalSplitter *horizontal_splitter) +{ + horizontal_splitter->details = g_new0 (CajaHorizontalSplitterDetails, 1); +} + +static void +caja_horizontal_splitter_finalize (GObject *object) +{ + CajaHorizontalSplitter *horizontal_splitter; + + horizontal_splitter = CAJA_HORIZONTAL_SPLITTER (object); + + g_free (horizontal_splitter->details); + + EEL_CALL_PARENT (G_OBJECT_CLASS, finalize, (object)); +} + +static void +splitter_expand (CajaHorizontalSplitter *splitter, int position) +{ + g_assert (CAJA_IS_HORIZONTAL_SPLITTER (splitter)); + + if (position >= CLOSED_THRESHOLD) + { + return; + } + + position = splitter->details->saved_size; + if (position < CLOSED_THRESHOLD) + { + position = NOMINAL_SIZE; + } + + gtk_paned_set_position (GTK_PANED (splitter), position); +} + +static void +splitter_collapse (CajaHorizontalSplitter *splitter, int position) +{ + g_assert (CAJA_IS_HORIZONTAL_SPLITTER (splitter)); + + splitter->details->saved_size = position; + gtk_paned_set_position (GTK_PANED (splitter), 0); +} + +static void +splitter_toggle (CajaHorizontalSplitter *splitter, int position) +{ + g_assert (CAJA_IS_HORIZONTAL_SPLITTER (splitter)); + + if (gtk_paned_get_position (GTK_PANED (splitter)) >= CLOSED_THRESHOLD) + { + caja_horizontal_splitter_collapse (splitter); + } + else + { + caja_horizontal_splitter_expand (splitter); + } +} + +static void +splitter_hide (CajaHorizontalSplitter *splitter) +{ + GtkPaned *parent; + + parent = GTK_PANED (splitter); + + gtk_widget_hide (gtk_paned_get_child1 (parent)); +} + +static void +splitter_show (CajaHorizontalSplitter *splitter) +{ + GtkPaned *parent; + + parent = GTK_PANED (splitter); + + gtk_widget_show (gtk_paned_get_child1 (parent)); +} + +static gboolean +splitter_is_hidden (CajaHorizontalSplitter *splitter) +{ + GtkPaned *parent; + + parent = GTK_PANED (splitter); + + return gtk_widget_get_visible (gtk_paned_get_child1 (parent)); +} + +void +caja_horizontal_splitter_expand (CajaHorizontalSplitter *splitter) +{ + splitter_expand (splitter, gtk_paned_get_position (GTK_PANED (splitter))); +} + +void +caja_horizontal_splitter_hide (CajaHorizontalSplitter *splitter) +{ + splitter_hide (splitter); +} + +void +caja_horizontal_splitter_show (CajaHorizontalSplitter *splitter) +{ + splitter_show (splitter); +} + +gboolean +caja_horizontal_splitter_is_hidden (CajaHorizontalSplitter *splitter) +{ + return splitter_is_hidden (splitter); +} + +void +caja_horizontal_splitter_collapse (CajaHorizontalSplitter *splitter) +{ + splitter_collapse (splitter, gtk_paned_get_position (GTK_PANED (splitter))); +} + +/* routine to toggle the open/closed state of the splitter */ +void +caja_horizontal_splitter_toggle_position (CajaHorizontalSplitter *splitter) +{ + splitter_toggle (splitter, gtk_paned_get_position (GTK_PANED (splitter))); +} + +/* CajaHorizontalSplitter public methods */ +GtkWidget * +caja_horizontal_splitter_new (void) +{ + return gtk_widget_new (caja_horizontal_splitter_get_type (), NULL); +} + +/* handle mouse downs by remembering the position and the time */ +static gboolean +caja_horizontal_splitter_button_press (GtkWidget *widget, GdkEventButton *event) +{ + gboolean result; + CajaHorizontalSplitter *splitter; + int position; + + splitter = CAJA_HORIZONTAL_SPLITTER (widget); + + position = gtk_paned_get_position (GTK_PANED (widget)); + + result = EEL_CALL_PARENT_WITH_RETURN_VALUE + (GTK_WIDGET_CLASS, button_press_event, (widget, event)); + + if (result) + { + splitter->details->press_time = event->time; + splitter->details->press_position = position; + } + + return result; +} + +/* handle mouse ups by seeing if it was a tap and toggling the open state accordingly */ +static gboolean +caja_horizontal_splitter_button_release (GtkWidget *widget, GdkEventButton *event) +{ + gboolean result; + CajaHorizontalSplitter *splitter; + int position, delta, delta_time; + splitter = CAJA_HORIZONTAL_SPLITTER (widget); + + position = gtk_paned_get_position (GTK_PANED (widget)); + + result = EEL_CALL_PARENT_WITH_RETURN_VALUE + (GTK_WIDGET_CLASS, button_release_event, (widget, event)); + + if (result) + { + delta = abs (position - splitter->details->press_position); + delta_time = event->time - splitter->details->press_time; + if (delta < SPLITTER_CLICK_SLOP && delta_time < SPLITTER_CLICK_TIMEOUT) + { + caja_horizontal_splitter_toggle_position (splitter); + } + } + + return result; +} + +static void +caja_horizontal_splitter_size_allocate (GtkWidget *widget, + GtkAllocation *allocation) +{ + gint border_width; + GtkPaned *paned; + GtkAllocation child_allocation; + GtkRequisition child_requisition; + + paned = GTK_PANED (widget); + border_width = gtk_container_get_border_width (GTK_CONTAINER (paned)); + + gtk_widget_set_allocation (widget, allocation); + + if (gtk_paned_get_child2 (paned) != NULL && gtk_widget_get_visible (gtk_paned_get_child2 (paned))) + { + EEL_CALL_PARENT (GTK_WIDGET_CLASS, size_allocate, + (widget, allocation)); + } + else if (gtk_paned_get_child1 (paned) && gtk_widget_get_visible (gtk_paned_get_child1 (paned))) + { + + if (gtk_widget_get_realized (widget)) + { + gdk_window_hide (gtk_paned_get_handle_window (paned)); + } + + gtk_widget_get_child_requisition (gtk_paned_get_child1 (paned), + &child_requisition); + + child_allocation.x = allocation->x + border_width; + child_allocation.y = allocation->y + border_width; + child_allocation.width = MIN (child_requisition.width, + allocation->width - 2 * border_width); + child_allocation.height = MIN (child_requisition.height, + allocation->height - 2 * border_width); + + gtk_widget_size_allocate (gtk_paned_get_child1 (paned), &child_allocation); + } + else if (gtk_widget_get_realized (widget)) + { + gdk_window_hide (gtk_paned_get_handle_window (paned)); + } + +} + +static void +caja_horizontal_splitter_class_init (CajaHorizontalSplitterClass *class) +{ + GtkWidgetClass *widget_class; + + widget_class = GTK_WIDGET_CLASS (class); + + G_OBJECT_CLASS (class)->finalize = caja_horizontal_splitter_finalize; + + widget_class->size_allocate = caja_horizontal_splitter_size_allocate; + widget_class->button_press_event = caja_horizontal_splitter_button_press; + widget_class->button_release_event = caja_horizontal_splitter_button_release; +} + +void +caja_horizontal_splitter_pack2 (CajaHorizontalSplitter *splitter, + GtkWidget *child2) +{ + GtkPaned *paned; + + g_return_if_fail (GTK_IS_WIDGET (child2)); + g_return_if_fail (CAJA_IS_HORIZONTAL_SPLITTER (splitter)); + + paned = GTK_PANED (splitter); + gtk_paned_pack2 (paned, child2, TRUE, FALSE); +} -- cgit v1.2.1