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rofi/source/widgets/box.c

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/*
* rofi
*
* MIT/X11 License
* Copyright © 2013-2021 Qball Cow <qball@gmpclient.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
/** The log domain of this widget. */
#define G_LOG_DOMAIN "Widgets.Box"
#include <config.h>
#include <stdio.h>
#include "widgets/widget.h"
#include "widgets/widget-internal.h"
#include "widgets/box.h"
#include "theme.h"
/** Default spacing used in the box*/
#define DEFAULT_SPACING 2
struct _box
{
widget widget;
RofiOrientation type;
int max_size;
// RofiPadding between elements
RofiDistance spacing;
GList *children;
};
static void box_update ( widget *wid );
static int box_get_desired_width ( widget *wid )
{
box *b = (box *) wid;
int spacing = distance_get_pixel ( b->spacing, b->type );
int width = 0;
// Allow user to override.
RofiDistance w = rofi_theme_get_distance ( wid, "width", 0 );
width = distance_get_pixel ( w, ROFI_ORIENTATION_HORIZONTAL );
if ( width > 0 ) {
return width;
}
if ( b->type == ROFI_ORIENTATION_HORIZONTAL ) {
int active_widgets = 0;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( !child->enabled ) {
continue;
}
active_widgets++;
if ( child->expand == TRUE ) {
width += widget_get_desired_width ( child );
continue;
}
width += widget_get_desired_width ( child );
}
if ( active_widgets > 0 ) {
width += ( active_widgets - 1 ) * spacing;
}
}
else {
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( !child->enabled ) {
continue;
}
width = MAX ( widget_get_desired_width ( child ), width );
}
}
width += widget_padding_get_padding_width ( wid );
return width;
}
static int box_get_desired_height ( widget *wid )
{
box *b = (box *) wid;
int spacing = distance_get_pixel ( b->spacing, b->type );
int height = 0;
if ( b->type == ROFI_ORIENTATION_VERTICAL ) {
int active_widgets = 0;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( !child->enabled ) {
continue;
}
active_widgets++;
height += widget_get_desired_height ( child );
}
if ( active_widgets > 0 ) {
height += ( active_widgets - 1 ) * spacing;
}
}
else {
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( !child->enabled ) {
continue;
}
height = MAX ( widget_get_desired_height ( child ), height );
}
}
height += widget_padding_get_padding_height ( wid );
return height;
}
static void vert_calculate_size ( box *b )
{
int spacing = distance_get_pixel ( b->spacing, ROFI_ORIENTATION_VERTICAL );
int expanding_widgets = 0;
int active_widgets = 0;
int rem_width = widget_padding_get_remaining_width ( WIDGET ( b ) );
int rem_height = widget_padding_get_remaining_height ( WIDGET ( b ) );
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( child->enabled && child->expand == FALSE ) {
widget_resize ( child, rem_width, widget_get_desired_height ( child ) );
}
}
b->max_size = 0;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( !child->enabled ) {
continue;
}
active_widgets++;
if ( child->expand == TRUE ) {
expanding_widgets++;
continue;
}
if ( child->h > 0 ) {
b->max_size += child->h;
}
}
if ( active_widgets > 0 ) {
b->max_size += ( active_widgets - 1 ) * spacing;
}
if ( b->max_size > rem_height ) {
b->max_size = rem_height;
g_debug ( "Widgets to large (height) for box: %d %d", b->max_size, b->widget.h );
return;
}
if ( active_widgets > 0 ) {
int top = widget_padding_get_top ( WIDGET ( b ) );
double rem = rem_height - b->max_size;
int index = 0;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( child->enabled == FALSE ) {
continue;
}
if ( child->expand == TRUE ) {
// Re-calculate to avoid round issues leaving one pixel left.
int expanding_widgets_size = ( rem ) / ( expanding_widgets - index );
widget_move ( child, widget_padding_get_left ( WIDGET ( b ) ), top );
top += expanding_widgets_size;
widget_resize ( child, rem_width, expanding_widgets_size );
top += spacing;
rem -= expanding_widgets_size;
index++;
}
else {
widget_move ( child, widget_padding_get_left ( WIDGET ( b ) ), top );
top += widget_get_height ( child );
top += spacing;
}
}
}
b->max_size += widget_padding_get_padding_height ( WIDGET ( b ) );
}
static void hori_calculate_size ( box *b )
{
int spacing = distance_get_pixel ( b->spacing, ROFI_ORIENTATION_HORIZONTAL );
int expanding_widgets = 0;
int active_widgets = 0;
int rem_width = widget_padding_get_remaining_width ( WIDGET ( b ) );
int rem_height = widget_padding_get_remaining_height ( WIDGET ( b ) );
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( child->enabled && child->expand == FALSE ) {
widget_resize ( child,
widget_get_desired_width ( child ), //child->w,
rem_height );
}
}
b->max_size = 0;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( !child->enabled ) {
continue;
}
active_widgets++;
if ( child->expand == TRUE ) {
expanding_widgets++;
continue;
}
// Size used by fixed width widgets.
if ( child->h > 0 ) {
b->max_size += child->w;
}
}
b->max_size += MAX ( 0, ( ( active_widgets - 1 ) * spacing ) );
if ( b->max_size > ( rem_width ) ) {
b->max_size = rem_width;
g_debug ( "Widgets to large (width) for box: %d %d", b->max_size, b->widget.w );
//return;
}
if ( active_widgets > 0 ) {
int left = widget_padding_get_left ( WIDGET ( b ) );
double rem = rem_width - b->max_size;
int index = 0;
if ( rem < 0 ) {
rem = 0;
}
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( child->enabled == FALSE ) {
continue;
}
if ( child->expand == TRUE ) {
// Re-calculate to avoid round issues leaving one pixel left.
int expanding_widgets_size = ( rem ) / ( expanding_widgets - index );
widget_move ( child, left, widget_padding_get_top ( WIDGET ( b ) ) );
left += expanding_widgets_size;
widget_resize ( child, expanding_widgets_size, rem_height );
left += spacing;
rem -= expanding_widgets_size;
index++;
}
else {
widget_move ( child, left, widget_padding_get_top ( WIDGET ( b ) ) );
left += widget_get_width ( child );
left += spacing;
}
}
}
b->max_size += widget_padding_get_padding_width ( WIDGET ( b ) );
}
static void box_draw ( widget *wid, cairo_t *draw )
{
box *b = (box *) wid;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
widget_draw ( child, draw );
}
}
static void box_free ( widget *wid )
{
box *b = (box *) wid;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
widget_free ( child );
}
g_list_free ( b->children );
g_free ( b );
}
void box_add ( box *box, widget *child, gboolean expand )
{
if ( box == NULL ) {
return;
}
// Make sure box is width/heigh enough.
if ( box->type == ROFI_ORIENTATION_VERTICAL ) {
int width = box->widget.w;
width = MAX ( width, child->w + widget_padding_get_padding_width ( WIDGET ( box ) ) );
box->widget.w = width;
}
else {
int height = box->widget.h;
height = MAX ( height, child->h + widget_padding_get_padding_height ( WIDGET ( box ) ) );
box->widget.h = height;
}
child->expand = rofi_theme_get_boolean ( child, "expand", expand );
g_assert ( child->parent == WIDGET ( box ) );
box->children = g_list_append ( box->children, (void *) child );
widget_update ( WIDGET ( box ) );
}
static void box_resize ( widget *widget, short w, short h )
{
box *b = (box *) widget;
if ( b->widget.w != w || b->widget.h != h ) {
b->widget.w = w;
b->widget.h = h;
widget_update ( widget );
}
}
static widget *box_find_mouse_target ( widget *wid, WidgetType type, gint x, gint y )
{
box *b = (box *) wid;
for ( GList *iter = g_list_first ( b->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
if ( !child->enabled ) {
continue;
}
if ( widget_intersect ( child, x, y ) ) {
gint rx = x - child->x;
gint ry = y - child->y;
widget *target = widget_find_mouse_target ( child, type, rx, ry );
if ( target != NULL ) {
return target;
}
}
}
return NULL;
}
static void box_set_state ( widget *wid, const char *state )
{
for ( GList *iter = g_list_first ( ( (box *) wid )->children ); iter != NULL; iter = g_list_next ( iter ) ) {
widget * child = (widget *) iter->data;
widget_set_state ( child, state );
}
}
box * box_create ( widget *parent, const char *name, RofiOrientation type )
{
box *b = g_malloc0 ( sizeof ( box ) );
// Initialize widget.
widget_init ( WIDGET ( b ), parent, WIDGET_TYPE_UNKNOWN, name );
b->type = type;
b->widget.draw = box_draw;
b->widget.free = box_free;
b->widget.resize = box_resize;
b->widget.update = box_update;
b->widget.find_mouse_target = box_find_mouse_target;
b->widget.get_desired_height = box_get_desired_height;
b->widget.get_desired_width = box_get_desired_width;
b->widget.set_state = box_set_state;
b->type = rofi_theme_get_orientation ( WIDGET ( b ), "orientation", b->type );
b->spacing = rofi_theme_get_distance ( WIDGET ( b ), "spacing", DEFAULT_SPACING );
return b;
}
static void box_update ( widget *wid )
{
box *b = (box *) wid;
switch ( b->type )
{
case ROFI_ORIENTATION_VERTICAL:
vert_calculate_size ( b );
break;
case ROFI_ORIENTATION_HORIZONTAL:
default:
hori_calculate_size ( b );
}
if ( wid->parent ) {
widget_update ( wid->parent );
}
}
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