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rofi/source/widgets/widget.c
Dave Davenport 151547a99e
[Themes] add calc() support to distance in theme format. (#1105) 
* Initial test to allow math in distances.

Support + and -
Needs spaces around + and -.

* [THEME] Fix printing theme with math in distance.

* [Theme] use calc() syntax.

* [Theme] Add * and /  to calc().

* [Theme] Fix the precedense ordering in parsing. Also avoid making copies.

* [Theme] Don't print unneeded ().

* [Theme] Add modulo to calc.
2020-04-24 19:54:08 +02:00

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/*
* rofi
*
* MIT/X11 License
* Copyright © 2013-2020 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.
*
*/
#include <glib.h>
#include <math.h>
#include "widgets/widget.h"
#include "widgets/widget-internal.h"
#include "theme.h"
/** Default padding. */
#define WIDGET_DEFAULT_PADDING 0
void widget_init ( widget *wid, widget *parent, WidgetType type, const char *name )
{
wid->type = type;
wid->parent = parent;
wid->name = g_strdup ( name );
wid->def_padding =
(RofiPadding){ { {WIDGET_DEFAULT_PADDING, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID }, { {WIDGET_DEFAULT_PADDING, ROFI_PU_PX,ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID }, { {WIDGET_DEFAULT_PADDING, ROFI_PU_PX,ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID },
{ {WIDGET_DEFAULT_PADDING, ROFI_PU_PX,ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID } };
wid->def_border = (RofiPadding){ { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL} , ROFI_HL_SOLID }, { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID }, { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID }, { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID } };
wid->def_border_radius = (RofiPadding){ { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL} , ROFI_HL_SOLID }, { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID }, { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID }, { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID } };
wid->def_margin = (RofiPadding){ { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL} , ROFI_HL_SOLID }, { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID }, { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID }, { {0, ROFI_PU_PX, ROFI_DISTANCE_MODIFIER_NONE, NULL, NULL}, ROFI_HL_SOLID } };
wid->padding = rofi_theme_get_padding ( wid, "padding", wid->def_padding );
wid->border = rofi_theme_get_padding ( wid, "border", wid->def_border );
wid->border_radius = rofi_theme_get_padding ( wid, "border-radius", wid->def_border_radius );
wid->margin = rofi_theme_get_padding ( wid, "margin", wid->def_margin );
// bled by default
wid->enabled = rofi_theme_get_boolean ( wid, "enabled", TRUE );
}
void widget_set_state ( widget *widget, const char *state )
{
if ( g_strcmp0 ( widget->state, state ) ) {
widget->state = state;
// Update border.
widget->border = rofi_theme_get_padding ( widget, "border", widget->def_border );
widget->border_radius = rofi_theme_get_padding ( widget, "border-radius", widget->def_border_radius );
widget_queue_redraw ( widget );
}
}
int widget_intersect ( const widget *widget, int x, int y )
{
if ( widget == NULL ) {
return FALSE;
}
if ( x >= ( widget->x ) && x < ( widget->x + widget->w ) ) {
if ( y >= ( widget->y ) && y < ( widget->y + widget->h ) ) {
return TRUE;
}
}
return FALSE;
}
void widget_resize ( widget *widget, short w, short h )
{
if ( widget != NULL ) {
if ( widget->resize != NULL ) {
if ( widget->w != w || widget->h != h ) {
widget->resize ( widget, w, h );
}
}
else {
widget->w = w;
widget->h = h;
}
// On a resize we always want to udpate.
widget_queue_redraw ( widget );
}
}
void widget_move ( widget *widget, short x, short y )
{
if ( widget != NULL ) {
widget->x = x;
widget->y = y;
}
}
void widget_set_type ( widget *widget, WidgetType type )
{
if ( widget == NULL ) {
return;
}
widget->type = type;
}
WidgetType widget_type ( widget *widget )
{
if ( widget != NULL ) {
return widget->type;
}
return WIDGET_TYPE_UNKNOWN;
}
gboolean widget_enabled ( widget *widget )
{
if ( widget != NULL ) {
return widget->enabled;
}
return FALSE;
}
void widget_enable ( widget *widget )
{
if ( widget && !widget->enabled ) {
widget->enabled = TRUE;
widget_update ( widget );
widget_update ( widget->parent );
widget_queue_redraw ( widget );
}
}
void widget_disable ( widget *widget )
{
if ( widget && widget->enabled ) {
widget->enabled = FALSE;
widget_update ( widget );
widget_update ( widget->parent );
widget_queue_redraw ( widget );
}
}
void widget_draw ( widget *widget, cairo_t *d )
{
// Check if enabled and if draw is implemented.
if ( widget && widget->enabled && widget->draw ) {
// Don't draw if there is no space.
if ( widget->h < 1 || widget->w < 1 ) {
widget->need_redraw = FALSE;
return;
}
// Store current state.
cairo_save ( d );
const int margin_left = distance_get_pixel ( widget->margin.left, ROFI_ORIENTATION_HORIZONTAL );
const int margin_top = distance_get_pixel ( widget->margin.top, ROFI_ORIENTATION_VERTICAL );
const int margin_right = distance_get_pixel ( widget->margin.right, ROFI_ORIENTATION_HORIZONTAL );
const int margin_bottom = distance_get_pixel ( widget->margin.bottom, ROFI_ORIENTATION_VERTICAL );
const int left = distance_get_pixel ( widget->border.left, ROFI_ORIENTATION_HORIZONTAL );
const int right = distance_get_pixel ( widget->border.right, ROFI_ORIENTATION_HORIZONTAL );
const int top = distance_get_pixel ( widget->border.top, ROFI_ORIENTATION_VERTICAL );
const int bottom = distance_get_pixel ( widget->border.bottom, ROFI_ORIENTATION_VERTICAL );
int radius_bl = distance_get_pixel ( widget->border_radius.left, ROFI_ORIENTATION_HORIZONTAL );
int radius_tr = distance_get_pixel ( widget->border_radius.right, ROFI_ORIENTATION_HORIZONTAL );
int radius_tl = distance_get_pixel ( widget->border_radius.top, ROFI_ORIENTATION_VERTICAL );
int radius_br = distance_get_pixel ( widget->border_radius.bottom, ROFI_ORIENTATION_VERTICAL );
double vspace = widget->h - margin_top - margin_bottom - top / 2.0 - bottom / 2.0;
double hspace = widget->w - margin_left - margin_right - left / 2.0 - right / 2.0;
if ( ( radius_bl + radius_tl ) > ( vspace ) ) {
int j = ( ( vspace ) / 2.0 );
radius_bl = MIN ( radius_bl, j );
radius_tl = MIN ( radius_tl, j );
}
if ( ( radius_br + radius_tr ) > ( vspace ) ) {
int j = ( ( vspace ) / 2.0 );
radius_br = MIN ( radius_br, j );
radius_tr = MIN ( radius_tr, j );
}
if ( ( radius_tl + radius_tr ) > ( hspace ) ) {
int j = ( ( hspace ) / 2.0 );
radius_tr = MIN ( radius_tr, j );
radius_tl = MIN ( radius_tl, j );
}
if ( ( radius_bl + radius_br ) > ( hspace ) ) {
int j = ( ( hspace ) / 2.0 );
radius_br = MIN ( radius_br, j );
radius_bl = MIN ( radius_bl, j );
}
// Background painting.
// Set new x/y position.
cairo_translate ( d, widget->x, widget->y );
cairo_set_line_width ( d, 0 );
// Set outlines.
cairo_move_to ( d, margin_left + radius_tl + left / 2.0, margin_top + radius_tl + top / 2.0 );
if ( radius_tl ) {
cairo_arc ( d, margin_left + radius_tl + left / 2.0, margin_top + radius_tl + top / 2.0, radius_tl, -1.0 * G_PI, -G_PI_2 );
}
cairo_line_to ( d, widget->w - margin_right - radius_tr - right / 2.0, margin_top + top / 2.0 );
if ( radius_tr ) {
cairo_arc ( d, widget->w - margin_right - radius_tr - right / 2.0, margin_top + radius_tr + top / 2.0, radius_tr, -G_PI_2, 0 * G_PI );
}
cairo_line_to ( d, widget->w - margin_right - right / 2.0, widget->h - margin_bottom - radius_br - bottom / 2.0 );
if ( radius_br ) {
cairo_arc ( d, widget->w - margin_right - radius_br - right / 2.0, widget->h - margin_bottom - radius_br - bottom / 2.0, radius_br, 0.0 * G_PI, G_PI_2 );
}
cairo_line_to ( d, margin_left + radius_bl + left / 2.0, widget->h - margin_bottom - bottom / 2.0 );
if ( radius_bl ) {
cairo_arc ( d, margin_left + radius_bl + left / 2.0, widget->h - margin_bottom - radius_bl - bottom / 2.0, radius_bl, G_PI_2, 1.0 * G_PI );
}
cairo_line_to ( d, margin_left + left / 2.0, margin_top + radius_tl + top / 2.0 );
cairo_close_path ( d );
cairo_set_source_rgba ( d, 1.0, 1.0, 1.0, 1.0 );
rofi_theme_get_color ( widget, "background-color", d );
cairo_fill_preserve ( d );
cairo_clip ( d );
widget->draw ( widget, d );
widget->need_redraw = FALSE;
cairo_restore ( d );
if ( left || top || right || bottom ) {
cairo_save ( d );
cairo_translate ( d, widget->x, widget->y );
cairo_new_path ( d );
rofi_theme_get_color ( widget, "border-color", d );
// Calculate the different offsets for the corners.
double minof_tr = MIN ( right / 2.0, top / 2.0 );
double minof_tl = MIN ( left / 2.0, top / 2.0 );
double minof_br = MIN ( right / 2.0, bottom / 2.0 );
double minof_bl = MIN ( left / 2.0, bottom / 2.0 );
// Inner radius
double radius_inner_tl = radius_tl - minof_tl;
double radius_inner_tr = radius_tr - minof_tr;
double radius_inner_bl = radius_bl - minof_bl;
double radius_inner_br = radius_br - minof_br;
// Offsets of the different lines in each corner.
//
// | |
// ttl ttr
// | |
// -ltl-###############-rtr-
// $ $
// $ $
// -lbl-###############-rbr-
// | |
// bbl bbr
// | |
//
// The left and right part ($) start at thinkness top bottom when no radius
double offset_ltl = ( radius_inner_tl > 0 ) ? ( left ) + radius_inner_tl : left;
double offset_rtr = ( radius_inner_tr > 0 ) ? ( right ) + radius_inner_tr : right;
double offset_lbl = ( radius_inner_bl > 0 ) ? ( left ) + radius_inner_bl : left;
double offset_rbr = ( radius_inner_br > 0 ) ? ( right ) + radius_inner_br : right;
// The top and bottom part (#) go into the corner when no radius
double offset_ttl = ( radius_inner_tl > 0 ) ? ( top ) + radius_inner_tl : ( radius_tl > 0 ) ? top : 0;
double offset_ttr = ( radius_inner_tr > 0 ) ? ( top ) + radius_inner_tr : ( radius_tr > 0 ) ? top : 0;
double offset_bbl = ( radius_inner_bl > 0 ) ? ( bottom ) + radius_inner_bl : ( radius_bl > 0 ) ? bottom : 0;
double offset_bbr = ( radius_inner_br > 0 ) ? ( bottom ) + radius_inner_br : ( radius_br > 0 ) ? bottom : 0;
if ( left > 0 ) {
cairo_set_line_width ( d, left );
distance_get_linestyle ( widget->border.left, d );
cairo_move_to ( d, margin_left + ( left / 2.0 ), margin_top + offset_ttl );
cairo_line_to ( d, margin_left + left / 2.0, widget->h - margin_bottom - offset_bbl );
cairo_stroke ( d );
}
if ( right > 0 ) {
cairo_set_line_width ( d, right );
distance_get_linestyle ( widget->border.right, d );
cairo_move_to ( d, widget->w - margin_right - right / 2.0, margin_top + offset_ttr );
cairo_line_to ( d, widget->w - margin_right - right / 2.0, widget->h - margin_bottom - offset_bbr );
cairo_stroke ( d );
}
if ( top > 0 ) {
cairo_set_line_width ( d, top );
distance_get_linestyle ( widget->border.top, d );
cairo_move_to ( d, margin_left + offset_ltl, margin_top + top / 2.0 );
cairo_line_to ( d, widget->w - margin_right - offset_rtr, margin_top + top / 2.0 );
cairo_stroke ( d );
}
if ( bottom > 0 ) {
cairo_set_line_width ( d, bottom );
distance_get_linestyle ( widget->border.bottom, d );
cairo_move_to ( d, margin_left + offset_lbl, widget->h - ( bottom / 2.0 ) - margin_bottom );
cairo_line_to ( d, widget->w - margin_right - offset_rbr, widget->h - bottom / 2.0 - margin_bottom );
cairo_stroke ( d );
}
if ( radius_tl > 0 ) {
distance_get_linestyle ( widget->border.left, d );
cairo_set_line_width ( d, 0 );
double radius_outer = radius_tl + minof_tl;
cairo_arc ( d, margin_left + radius_outer, margin_top + radius_outer, radius_outer, -G_PI, -G_PI_2 );
cairo_line_to ( d, margin_left + offset_ltl, margin_top );
cairo_line_to ( d, margin_left + offset_ltl, margin_top + top );
if ( radius_inner_tl > 0 ) {
cairo_arc_negative ( d,
margin_left + left + radius_inner_tl,
margin_top + top + radius_inner_tl,
radius_inner_tl, -G_PI_2, G_PI );
cairo_line_to ( d, margin_left + left, margin_top + offset_ttl );
}
cairo_line_to ( d, margin_left, margin_top + offset_ttl );
cairo_close_path ( d );
cairo_fill ( d );
}
if ( radius_tr > 0 ) {
distance_get_linestyle ( widget->border.right, d );
cairo_set_line_width ( d, 0 );
double radius_outer = radius_tr + minof_tr;
cairo_arc ( d, widget->w - margin_right - radius_outer, margin_top + radius_outer, radius_outer, -G_PI_2, 0 );
cairo_line_to ( d, widget->w - margin_right, margin_top + offset_ttr );
cairo_line_to ( d, widget->w - margin_right - right, margin_top + offset_ttr );
if ( radius_inner_tr > 0 ) {
cairo_arc_negative ( d, widget->w - margin_right - right - radius_inner_tr,
margin_top + top + radius_inner_tr,
radius_inner_tr, 0, -G_PI_2 );
cairo_line_to ( d, widget->w - margin_right - offset_rtr, margin_top + top );
}
cairo_line_to ( d, widget->w - margin_right - offset_rtr, margin_top );
cairo_close_path ( d );
cairo_fill ( d );
}
if ( radius_br > 0 ) {
distance_get_linestyle ( widget->border.right, d );
cairo_set_line_width ( d, 1 );
double radius_outer = radius_br + minof_br;
cairo_arc ( d, widget->w - margin_right - radius_outer, widget->h - margin_bottom - radius_outer, radius_outer, 0.0, G_PI_2 );
cairo_line_to ( d, widget->w - margin_right - offset_rbr, widget->h - margin_bottom );
cairo_line_to ( d, widget->w - margin_right - offset_rbr, widget->h - margin_bottom - bottom );
if ( radius_inner_br > 0 ) {
cairo_arc_negative ( d, widget->w - margin_right - right - radius_inner_br,
widget->h - margin_bottom - bottom - radius_inner_br,
radius_inner_br, G_PI_2, 0.0 );
cairo_line_to ( d, widget->w - margin_right - right, widget->h - margin_bottom - offset_bbr );
}
cairo_line_to ( d, widget->w - margin_right, widget->h - margin_bottom - offset_bbr );
cairo_close_path ( d );
cairo_fill ( d );
}
if ( radius_bl > 0 ) {
distance_get_linestyle ( widget->border.left, d );
cairo_set_line_width ( d, 1.0 );
double radius_outer = radius_bl + minof_bl;
cairo_arc ( d, margin_left + radius_outer, widget->h - margin_bottom - radius_outer, radius_outer, G_PI_2, G_PI );
cairo_line_to ( d, margin_left, widget->h - margin_bottom - offset_bbl );
cairo_line_to ( d, margin_left + left, widget->h - margin_bottom - offset_bbl );
if ( radius_inner_bl > 0 ) {
cairo_arc_negative ( d, margin_left + left + radius_inner_bl,
widget->h - margin_bottom - bottom - radius_inner_bl,
radius_inner_bl, G_PI, G_PI_2 );
cairo_line_to ( d, margin_left + offset_lbl, widget->h - margin_bottom - bottom );
}
cairo_line_to ( d, margin_left + offset_lbl, widget->h - margin_bottom );
cairo_close_path ( d );
cairo_fill ( d );
}
cairo_restore ( d );
}
}
}
void widget_free ( widget *wid )
{
if ( wid ) {
if ( wid->name ) {
g_free ( wid->name );
}
if ( wid->free ) {
wid->free ( wid );
}
return;
}
}
int widget_get_height ( widget *widget )
{
if ( widget ) {
if ( widget->get_height ) {
return widget->get_height ( widget );
}
return widget->h;
}
return 0;
}
int widget_get_width ( widget *widget )
{
if ( widget ) {
if ( widget->get_width ) {
return widget->get_width ( widget );
}
return widget->w;
}
return 0;
}
int widget_get_x_pos ( widget *widget )
{
if ( widget ) {
return widget->x;
}
return 0;
}
int widget_get_y_pos ( widget *widget )
{
if ( widget ) {
return widget->y;
}
return 0;
}
void widget_xy_to_relative ( widget *widget, gint *x, gint *y )
{
*x -= widget->x;
*y -= widget->y;
if ( widget->parent != NULL ) {
widget_xy_to_relative ( widget->parent, x, y );
}
}
void widget_update ( widget *widget )
{
// When (desired )size of widget changes.
if ( widget ) {
if ( widget->update ) {
widget->update ( widget );
}
}
}
void widget_queue_redraw ( widget *wid )
{
if ( wid ) {
widget *iter = wid;
// Find toplevel widget.
while ( iter->parent != NULL ) {
iter->need_redraw = TRUE;
iter = iter->parent;
}
iter->need_redraw = TRUE;
}
}
gboolean widget_need_redraw ( widget *wid )
{
if ( wid && wid->enabled ) {
return wid->need_redraw;
}
return FALSE;
}
widget *widget_find_mouse_target ( widget *wid, WidgetType type, gint x, gint y )
{
if ( !wid ) {
return NULL;
}
if ( wid->find_mouse_target ) {
widget *target = wid->find_mouse_target ( wid, type, x, y );
if ( target != NULL ) {
return target;
}
}
if ( wid->type == type ) {
return wid;
}
return NULL;
}
WidgetTriggerActionResult widget_trigger_action ( widget *wid, guint action, gint x, gint y )
{
if ( wid && wid->trigger_action ) {
return wid->trigger_action ( wid, action, x, y, wid->trigger_action_cb_data );
}
return FALSE;
}
void widget_set_trigger_action_handler ( widget *wid, widget_trigger_action_cb cb, void * cb_data )
{
if ( wid == NULL ) {
return;
}
wid->trigger_action = cb;
wid->trigger_action_cb_data = cb_data;
}
gboolean widget_motion_notify ( widget *wid, gint x, gint y )
{
if ( wid && wid->motion_notify ) {
wid->motion_notify ( wid, x, y );
}
return FALSE;
}
int widget_padding_get_left ( const widget *wid )
{
if ( wid == NULL ) {
return 0;
}
int distance = distance_get_pixel ( wid->padding.left, ROFI_ORIENTATION_HORIZONTAL );
distance += distance_get_pixel ( wid->border.left, ROFI_ORIENTATION_HORIZONTAL );
distance += distance_get_pixel ( wid->margin.left, ROFI_ORIENTATION_HORIZONTAL );
return distance;
}
int widget_padding_get_right ( const widget *wid )
{
if ( wid == NULL ) {
return 0;
}
int distance = distance_get_pixel ( wid->padding.right, ROFI_ORIENTATION_HORIZONTAL );
distance += distance_get_pixel ( wid->border.right, ROFI_ORIENTATION_HORIZONTAL );
distance += distance_get_pixel ( wid->margin.right, ROFI_ORIENTATION_HORIZONTAL );
return distance;
}
int widget_padding_get_top ( const widget *wid )
{
if ( wid == NULL ) {
return 0;
}
int distance = distance_get_pixel ( wid->padding.top, ROFI_ORIENTATION_VERTICAL );
distance += distance_get_pixel ( wid->border.top, ROFI_ORIENTATION_VERTICAL );
distance += distance_get_pixel ( wid->margin.top, ROFI_ORIENTATION_VERTICAL );
return distance;
}
int widget_padding_get_bottom ( const widget *wid )
{
if ( wid == NULL ) {
return 0;
}
int distance = distance_get_pixel ( wid->padding.bottom, ROFI_ORIENTATION_VERTICAL );
distance += distance_get_pixel ( wid->border.bottom, ROFI_ORIENTATION_VERTICAL );
distance += distance_get_pixel ( wid->margin.bottom, ROFI_ORIENTATION_VERTICAL );
return distance;
}
int widget_padding_get_remaining_width ( const widget *wid )
{
int width = wid->w;
width -= widget_padding_get_left ( wid );
width -= widget_padding_get_right ( wid );
return width;
}
int widget_padding_get_remaining_height ( const widget *wid )
{
int height = wid->h;
height -= widget_padding_get_top ( wid );
height -= widget_padding_get_bottom ( wid );
return height;
}
int widget_padding_get_padding_height ( const widget *wid )
{
int height = 0;
height += widget_padding_get_top ( wid );
height += widget_padding_get_bottom ( wid );
return height;
}
int widget_padding_get_padding_width ( const widget *wid )
{
int width = 0;
width += widget_padding_get_left ( wid );
width += widget_padding_get_right ( wid );
return width;
}
int widget_get_desired_height ( widget *wid )
{
if ( wid == NULL ) {
return 0;
}
if ( wid->get_desired_height ) {
return wid->get_desired_height ( wid );
}
return wid->h;
}
int widget_get_desired_width ( widget *wid )
{
if ( wid == NULL ) {
return 0;
}
if ( wid->get_desired_width ) {
return wid->get_desired_width ( wid );
}
return wid->w;
}
int widget_get_absolute_xpos ( widget *wid )
{
int retv = 0;
if ( wid ) {
retv += wid->x;
if ( wid->parent ) {
retv += widget_get_absolute_xpos ( wid->parent );
}
}
return retv;
}
int widget_get_absolute_ypos ( widget *wid )
{
int retv = 0;
if ( wid ) {
retv += wid->y;
if ( wid->parent ) {
retv += widget_get_absolute_ypos ( wid->parent );
}
}
return retv;
}
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