dxx-rebirth/common/ui/checkbox.cpp
2018-05-19 23:21:42 +00:00

158 lines
4.1 KiB
C++

/*
* Portions of this file are copyright Rebirth contributors and licensed as
* described in COPYING.txt.
* Portions of this file are copyright Parallax Software and licensed
* according to the Parallax license below.
* See COPYING.txt for license details.
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
*/
#include <stdlib.h>
#include <string.h>
#include "u_mem.h"
#include "maths.h"
#include "pstypes.h"
#include "event.h"
#include "gr.h"
#include "ui.h"
#include "mouse.h"
#include "key.h"
namespace dcx {
#define Middle(x) ((2*(x)+1)/4)
void ui_draw_checkbox( UI_DIALOG *dlg, UI_GADGET_CHECKBOX * checkbox )
{
#if 0 //ndef OGL
if ((checkbox->status==1) || (checkbox->position != checkbox->oldposition))
#endif
{
checkbox->status = 0;
gr_set_current_canvas( checkbox->canvas );
auto &canvas = *grd_curcanv;
gr_set_fontcolor(canvas, dlg->keyboard_focus_gadget == checkbox
? CRED
: CBLACK, -1);
unsigned offset;
if (checkbox->position == 0 )
{
ui_draw_box_out(canvas, 0, 0, checkbox->width-1, checkbox->height-1);
offset = 0;
} else {
ui_draw_box_in(canvas, 0, 0, checkbox->width-1, checkbox->height-1);
offset = 1;
}
ui_string_centered(canvas, Middle(checkbox->width) + offset, Middle(checkbox->height) + offset, checkbox->flag ? "X" : " ");
gr_ustring(canvas, *canvas.cv_font, checkbox->width + 4, 2, checkbox->text.get());
}
}
std::unique_ptr<UI_GADGET_CHECKBOX> ui_add_gadget_checkbox(UI_DIALOG * dlg, short x, short y, short w, short h, short group, const char * text)
{
std::unique_ptr<UI_GADGET_CHECKBOX> checkbox{ui_gadget_add<UI_GADGET_CHECKBOX>(dlg, x, y, x+w-1, y+h-1)};
auto ltext = strlen(text) + 1;
MALLOC(checkbox->text, char[], ltext + 4);
memcpy(checkbox->text.get(), text, ltext);
checkbox->width = w;
checkbox->height = h;
checkbox->position = 0;
checkbox->oldposition = 0;
checkbox->pressed = 0;
checkbox->flag = 0;
checkbox->group = group;
return checkbox;
}
window_event_result ui_checkbox_do( UI_DIALOG *dlg, UI_GADGET_CHECKBOX * checkbox,const d_event &event )
{
checkbox->oldposition = checkbox->position;
checkbox->pressed = 0;
if (event.type == EVENT_MOUSE_BUTTON_DOWN || event.type == EVENT_MOUSE_BUTTON_UP)
{
int OnMe;
OnMe = ui_mouse_on_gadget( checkbox );
if (B1_JUST_PRESSED && OnMe)
{
checkbox->position = 1;
return window_event_result::handled;
}
else if (B1_JUST_RELEASED)
{
if ((checkbox->position==1) && OnMe)
checkbox->pressed = 1;
checkbox->position = 0;
}
}
if (event.type == EVENT_KEY_COMMAND)
{
int key;
key = event_key_get(event);
if ((dlg->keyboard_focus_gadget==checkbox) && ((key==KEY_SPACEBAR) || (key==KEY_ENTER)) )
{
checkbox->position = 2;
return window_event_result::handled;
}
}
else if (event.type == EVENT_KEY_RELEASE)
{
int key;
key = event_key_get(event);
checkbox->position = 0;
if ((dlg->keyboard_focus_gadget==checkbox) && ((key==KEY_SPACEBAR) || (key==KEY_ENTER)) )
checkbox->pressed = 1;
}
if (checkbox->pressed == 1)
{
checkbox->flag ^= 1;
auto rval = ui_gadget_send_event(dlg, EVENT_UI_GADGET_PRESSED, checkbox);
if (rval == window_event_result::ignored)
rval = window_event_result::handled;
return rval;
}
if (event.type == EVENT_WINDOW_DRAW)
ui_draw_checkbox( dlg, checkbox );
return window_event_result::ignored;
}
void ui_checkbox_check(UI_GADGET_CHECKBOX * checkbox, int check)
{
check = check != 0;
if (checkbox->flag == check)
return;
checkbox->flag = check;
checkbox->status = 1; // redraw
}
}