Freeciv-3.2
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Functions | Variables
widget.c File Reference
#include <SDL3/SDL.h>
#include "log.h"
#include "colors.h"
#include "graphics.h"
#include "gui_id.h"
#include "gui_main.h"
#include "gui_tilespec.h"
#include "mapview.h"
#include "themespec.h"
#include "widget.h"
#include "widget_p.h"

Go to the source code of this file.

Functions

void correct_size_bcgnd_surf (SDL_Surface *ptheme, int *width, int *height)
 
SDL_Surfacecreate_bcgnd_surf (SDL_Surface *ptheme, enum widget_state state, Uint16 width, Uint16 height)
 
struct widgetfind_next_widget_at_pos (struct widget *start_widget, int x, int y)
 
struct widgetfind_next_widget_for_key (struct widget *start_widget, SDL_KeyboardEvent *key)
 
Uint16 widget_pressed_action (struct widget *pwidget)
 
void unselect_widget_action (void)
 
void widget_selected_action (struct widget *pwidget)
 
void redraw_widget_info_label (SDL_Rect *rect)
 
struct widgetget_widget_pointer_from_id (const struct widget *gui_list, Uint16 id, enum scan_direction direction)
 
struct widgetget_widget_pointer_from_main_list (Uint16 id)
 
void add_to_gui_list (Uint16 id, struct widget *gui)
 
void widget_add_as_prev (struct widget *new_widget, struct widget *add_dock)
 
void del_widget_pointer_from_gui_list (struct widget *gui)
 
bool is_this_widget_first_on_list (struct widget *gui)
 
void move_widget_to_front_of_gui_list (struct widget *gui)
 
void del_main_list (void)
 
void del_gui_list (struct widget *gui_list)
 
Uint16 redraw_group (const struct widget *begin_group_widget_list, const struct widget *end_group_widget_list, int add_to_update)
 
void undraw_group (struct widget *begin_group_widget_list, struct widget *end_group_widget_list)
 
void set_new_group_start_pos (const struct widget *begin_group_widget_list, const struct widget *end_group_widget_list, Sint16 Xrel, Sint16 Yrel)
 
void move_group_to_front_of_gui_list (struct widget *begin_group_widget_list, struct widget *end_group_widget_list)
 
void del_group_of_widgets_from_gui_list (struct widget *begin_group_widget_list, struct widget *end_group_widget_list)
 
void set_group_state (struct widget *begin_group_widget_list, struct widget *end_group_widget_list, enum widget_state state)
 
void hide_group (struct widget *begin_group_widget_list, struct widget *end_group_widget_list)
 
void show_group (struct widget *begin_group_widget_list, struct widget *end_group_widget_list)
 
void group_set_area (struct widget *begin_group_widget_list, struct widget *end_group_widget_list, SDL_Rect area)
 
void popdown_window_group_dialog (struct widget *begin_group_widget_list, struct widget *end_group_widget_list)
 
bool select_window_group_dialog (struct widget *begin_widget_list, struct widget *pwindow)
 
bool move_window_group_dialog (struct widget *begin_group_widget_list, struct widget *end_group_widget_list)
 
void move_window_group (struct widget *begin_widget_list, struct widget *pwindow)
 
int setup_vertical_widgets_position (int step, Sint16 start_x, Sint16 start_y, Uint16 w, Uint16 h, struct widget *begin, struct widget *end)
 
void draw_frame (SDL_Surface *pdest, Sint16 start_x, Sint16 start_y, Uint16 w, Uint16 h)
 
void refresh_widget_background (struct widget *pwidget)
 

Variables

struct widgetselected_widget
 
SDL_Rectinfo_area = NULL
 
Uint32 widget_info_counter
 
static struct widgetbegin_main_widget_list
 
static SDL_Surfaceinfo_label = NULL
 

Function Documentation

◆ add_to_gui_list()

void add_to_gui_list ( Uint16  id,
struct widget gui 
)

Add Widget to Main widgets list ( begin_widget_list )

Definition at line 581 of file widget.c.

◆ correct_size_bcgnd_surf()

void correct_size_bcgnd_surf ( SDL_Surface ptheme,
int width,
int height 
)

Correct background size ( set min size ). Used in create widget functions.

Definition at line 59 of file widget.c.

◆ create_bcgnd_surf()

SDL_Surface * create_bcgnd_surf ( SDL_Surface ptheme,
enum widget_state  state,
Uint16  width,
Uint16  height 
)

Create background image for buttons, iconbuttons and edit fields then return pointer to this image.

Graphic is taken from ptheme surface and blit to new created image.

Type of image depend of "state" parameter.

Definition at line 74 of file widget.c.

◆ del_group_of_widgets_from_gui_list()

void del_group_of_widgets_from_gui_list ( struct widget begin_group_widget_list,
struct widget end_group_widget_list 
)

Remove all widgets of the group from the list of displayed widgets. Does not free widget memory.

Definition at line 858 of file widget.c.

◆ del_gui_list()

void del_gui_list ( struct widget gui_list)

Delete Wideget's List ('gui_list').

Definition at line 694 of file widget.c.

◆ del_main_list()

void del_main_list ( void  )

Delete Main widgets list.

Definition at line 686 of file widget.c.

◆ del_widget_pointer_from_gui_list()

void del_widget_pointer_from_gui_list ( struct widget gui)

Delete Widget from Main widgets list ( begin_widget_list )

NOTE: This function does not destroy Widget, only remove its pointer from list. To destroy this Widget totaly ( free mem... ) call macro: del_widget_from_gui_list( pwidget ). This macro call this function.

Definition at line 617 of file widget.c.

◆ draw_frame()

void draw_frame ( SDL_Surface pdest,
Sint16  start_x,
Sint16  start_y,
Uint16  w,
Uint16  h 
)

Draw Themed Frame.

Definition at line 1109 of file widget.c.

◆ find_next_widget_at_pos()

struct widget * find_next_widget_at_pos ( struct widget start_widget,
int  x,
int  y 
)

Find the next visible widget in the widget list starting with start_widget that is drawn at position (x, y). If start_widget is NULL, the search starts with the first entry of the main widget list.

Definition at line 218 of file widget.c.

◆ find_next_widget_for_key()

struct widget * find_next_widget_for_key ( struct widget start_widget,
SDL_KeyboardEvent key 
)

Find the next enabled and visible widget in the widget list starting with start_widget that handles the given key. If start_widget is NULL, the search starts with the first entry of the main widget list. NOTE: This function ignores CapsLock and NumLock Keys.

Definition at line 248 of file widget.c.

◆ get_widget_pointer_from_id()

struct widget * get_widget_pointer_from_id ( const struct widget gui_list,
Uint16  id,
enum scan_direction  direction 
)

Find ID in widgets list ('gui_list') and return pointer to this Widget.

Definition at line 547 of file widget.c.

◆ get_widget_pointer_from_main_list()

struct widget * get_widget_pointer_from_main_list ( Uint16  id)

Find ID in MAIN widgets list ( begin_widget_list ) and return pointer to this Widgets.

Definition at line 573 of file widget.c.

◆ group_set_area()

void group_set_area ( struct widget begin_group_widget_list,
struct widget end_group_widget_list,
SDL_Rect  area 
)

Set area for all widgets in the group.

Definition at line 948 of file widget.c.

◆ hide_group()

void hide_group ( struct widget begin_group_widget_list,
struct widget end_group_widget_list 
)

Hide all widgets in the group.

Definition at line 910 of file widget.c.

◆ is_this_widget_first_on_list()

bool is_this_widget_first_on_list ( struct widget gui)

Determinate if 'gui' is first on WidgetList

NOTE: This is used by My (move) GUI Window mechanism. Return TRUE if is first.

Definition at line 652 of file widget.c.

◆ move_group_to_front_of_gui_list()

void move_group_to_front_of_gui_list ( struct widget begin_group_widget_list,
struct widget end_group_widget_list 
)

Move group of Widget's pointers to begin of main list. Move group destination buffer to end of buffer array. NOTE: This is used by My GUI Window(group) mechanism.

Definition at line 807 of file widget.c.

◆ move_widget_to_front_of_gui_list()

void move_widget_to_front_of_gui_list ( struct widget gui)

Move pointer to Widget to list begin.

NOTE: This is used by My GUI Window mechanism.

Definition at line 662 of file widget.c.

◆ move_window_group()

void move_window_group ( struct widget begin_widget_list,
struct widget pwindow 
)

Standart Window Group Widget Callback (window) When Pressed check mouse move; if move then move window and redraw else if not on front then move window up to list and redraw.

Definition at line 1034 of file widget.c.

◆ move_window_group_dialog()

bool move_window_group_dialog ( struct widget begin_group_widget_list,
struct widget end_group_widget_list 
)

Move Window Group. The Trick is simple. We move only last member of group: the window , and then set new position to all members of group.

Function return 1 when group was moved.

Definition at line 1011 of file widget.c.

◆ popdown_window_group_dialog()

void popdown_window_group_dialog ( struct widget begin_group_widget_list,
struct widget end_group_widget_list 
)

Undraw and destroy Window Group The Trick is simple. We undraw only last member of group: the window.

Definition at line 978 of file widget.c.

◆ redraw_group()

Uint16 redraw_group ( const struct widget begin_group_widget_list,
const struct widget end_group_widget_list,
int  add_to_update 
)

Universal redraw Group of Widget function. Function is optimized to WindowGroup: start draw from 'end' and stop on 'begin', in theory 'end' is window widget;

Definition at line 715 of file widget.c.

◆ redraw_widget_info_label()

void redraw_widget_info_label ( SDL_Rect rect)

Draw or redraw info label to screen.

Definition at line 463 of file widget.c.

◆ refresh_widget_background()

void refresh_widget_background ( struct widget pwidget)

Redraw background of the widget.

Definition at line 1146 of file widget.c.

◆ select_window_group_dialog()

bool select_window_group_dialog ( struct widget begin_widget_list,
struct widget pwindow 
)

Select Window Group. (move widget group up the widgets list) Function return TRUE when group was selected.

Definition at line 993 of file widget.c.

◆ set_group_state()

void set_group_state ( struct widget begin_group_widget_list,
struct widget end_group_widget_list,
enum widget_state  state 
)

Set state for all the widgets in the group.

Definition at line 893 of file widget.c.

◆ set_new_group_start_pos()

void set_new_group_start_pos ( const struct widget begin_group_widget_list,
const struct widget end_group_widget_list,
Sint16  Xrel,
Sint16  Yrel 
)

Move all widgets in the group by the given amounts.

Definition at line 769 of file widget.c.

◆ setup_vertical_widgets_position()

int setup_vertical_widgets_position ( int  step,
Sint16  start_x,
Sint16  start_y,
Uint16  w,
Uint16  h,
struct widget begin,
struct widget end 
)

Setup widgets vertically.

Definition at line 1046 of file widget.c.

◆ show_group()

void show_group ( struct widget begin_group_widget_list,
struct widget end_group_widget_list 
)

Show all widgets in the group.

Definition at line 929 of file widget.c.

◆ undraw_group()

void undraw_group ( struct widget begin_group_widget_list,
struct widget end_group_widget_list 
)

Undraw all widgets in the group.

Definition at line 749 of file widget.c.

◆ unselect_widget_action()

void unselect_widget_action ( void  )

Unselect (selected) widget and redraw this widget;

Definition at line 414 of file widget.c.

◆ widget_add_as_prev()

void widget_add_as_prev ( struct widget new_widget,
struct widget add_dock 
)

Add Widget to widgets list at add_dock position on 'prev' slot.

Definition at line 597 of file widget.c.

◆ widget_pressed_action()

Uint16 widget_pressed_action ( struct widget pwidget)

Do default Widget action when pressed, and then call widget callback function.

example for Button: set flags FW_Pressed redraw button ( pressed ) refresh screen ( to see result ) wait 300 ms ( to see result :) If exist (button callback function) then call (button callback function)

Function normal return Widget ID. NOTE: NOZERO return of this function determinate exit of MAIN_SDL_GAME_LOOP if ( pwidget->action ) if ( pwidget->action(pwidget) ) ID = 0; if widget callback function return = 0 then return NOZERO I default return (-1) from Widget callback functions.

Definition at line 292 of file widget.c.

◆ widget_selected_action()

void widget_selected_action ( struct widget pwidget)

Select widget. Redraw this widget;

Definition at line 439 of file widget.c.

Variable Documentation

◆ begin_main_widget_list

struct widget* begin_main_widget_list
static

Definition at line 51 of file widget.c.

◆ info_area

SDL_Rect* info_area = NULL

Definition at line 45 of file widget.c.

Referenced by flush_dirty().

◆ info_label

SDL_Surface* info_label = NULL
static

Definition at line 53 of file widget.c.

◆ selected_widget

struct widget* selected_widget

◆ widget_info_counter

Uint32 widget_info_counter
extern

Definition at line 103 of file gui_main.c.

Referenced by gui_event_loop(), and gui_event_loop().