qulogic/libgnt

closing merged branch
panel_window
2019-05-07, Gary Kramlich
219a8f1aa985
closing merged branch
/*
* GNT - The GLib Ncurses Toolkit
*
* GNT is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This library 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdlib.h>
#include <string.h>
#include "gntinternal.h"
#include "gntbutton.h"
#include "gntstyle.h"
#include "gntutils.h"
#include "gntwidgetprivate.h"
typedef struct
{
gchar *text;
} GntButtonPrivate;
enum
{
SIGS = 1,
};
static gboolean small_button = FALSE;
G_DEFINE_TYPE_WITH_PRIVATE(GntButton, gnt_button, GNT_TYPE_WIDGET)
static void
gnt_button_draw(GntWidget *widget)
{
GntButton *button = GNT_BUTTON(widget);
GntButtonPrivate *priv = gnt_button_get_instance_private(button);
WINDOW *window = gnt_widget_get_window(widget);
GntColorType type;
gboolean focus;
if ((focus = gnt_widget_has_focus(widget)))
type = GNT_COLOR_HIGHLIGHT;
else
type = GNT_COLOR_NORMAL;
wbkgdset(window, '\0' | gnt_color_pair(type));
mvwaddstr(window, (small_button) ? 0 : 1, 2, C_(priv->text));
if (small_button) {
gint width;
type = GNT_COLOR_HIGHLIGHT;
gnt_widget_get_internal_size(widget, &width, NULL);
mvwchgat(window, 0, 0, width, focus ? A_BOLD : A_REVERSE, type,
NULL);
}
}
static void
gnt_button_size_request(GntWidget *widget)
{
GntButton *button = GNT_BUTTON(widget);
GntButtonPrivate *priv = gnt_button_get_instance_private(button);
gint width, height;
gnt_util_get_text_bound(priv->text, &width, &height);
width += 4;
if (gnt_widget_get_has_border(widget)) {
height += 2;
}
gnt_widget_set_internal_size(widget, width, height);
}
static void
gnt_button_map(GntWidget *widget)
{
gint width, height;
gnt_widget_get_internal_size(widget, &width, &height);
if (width == 0 || height == 0) {
gnt_widget_size_request(widget);
}
}
static gboolean
gnt_button_clicked(GntWidget *widget, GntMouseEvent event, G_GNUC_UNUSED int x,
G_GNUC_UNUSED int y)
{
if (event == GNT_LEFT_MOUSE_DOWN) {
gnt_widget_activate(widget);
return TRUE;
}
return FALSE;
}
static void
gnt_button_destroy(GntWidget *widget)
{
GntButton *button = GNT_BUTTON(widget);
GntButtonPrivate *priv = gnt_button_get_instance_private(button);
g_free(priv->text);
}
static gboolean
button_activate(GntBindable *bind, G_GNUC_UNUSED GList *params)
{
gnt_widget_activate(GNT_WIDGET(bind));
return TRUE;
}
static void
gnt_button_class_init(GntButtonClass *klass)
{
char *style;
GntBindableClass *bindable = GNT_BINDABLE_CLASS(klass);
GntWidgetClass *widget_class = GNT_WIDGET_CLASS(klass);
widget_class = GNT_WIDGET_CLASS(klass);
widget_class->draw = gnt_button_draw;
widget_class->map = gnt_button_map;
widget_class->size_request = gnt_button_size_request;
widget_class->clicked = gnt_button_clicked;
widget_class->destroy = gnt_button_destroy;
style = gnt_style_get_from_name(NULL, "small-button");
small_button = gnt_style_parse_bool(style);
g_free(style);
gnt_bindable_class_register_action(bindable, "activate", button_activate,
GNT_KEY_ENTER, NULL);
gnt_style_read_actions(G_OBJECT_CLASS_TYPE(klass), GNT_BINDABLE_CLASS(klass));
}
static void
gnt_button_init(GntButton *button)
{
GntWidget *widget = GNT_WIDGET(button);
gnt_widget_set_minimum_size(widget, 4, small_button ? 1 : 3);
if (small_button) {
gnt_widget_set_has_border(widget, FALSE);
gnt_widget_set_has_shadow(widget, FALSE);
}
gnt_widget_set_grow_x(widget, FALSE);
gnt_widget_set_grow_y(widget, FALSE);
}
/******************************************************************************
* GntButton API
*****************************************************************************/
GntWidget *gnt_button_new(const char *text)
{
GntWidget *widget = g_object_new(GNT_TYPE_BUTTON, NULL);
GntButton *button = GNT_BUTTON(widget);
GntButtonPrivate *priv = gnt_button_get_instance_private(button);
priv->text = gnt_util_onscreen_fit_string(text, -1);
gnt_widget_set_take_focus(widget, TRUE);
return widget;
}
const gchar *
gnt_button_get_text(GntButton *button)
{
GntButtonPrivate *priv = gnt_button_get_instance_private(button);
g_return_val_if_fail(GNT_IS_BUTTON(button), NULL);
return priv->text;
}
void
gnt_button_set_text(GntButton *button, const gchar *text)
{
GntButtonPrivate *priv = gnt_button_get_instance_private(button);
g_return_if_fail(GNT_IS_BUTTON(button));
g_free(priv->text);
priv->text = g_strdup(text);
}