203 lines
4.7 KiB
C
203 lines
4.7 KiB
C
/*
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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/*
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*
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* Routines for manipulating the button gadgets.
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*
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "u_mem.h"
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#include "fix.h"
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#include "pstypes.h"
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#include "event.h"
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#include "gr.h"
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#include "ui.h"
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#include "mouse.h"
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#include "key.h"
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#define Middle(x) ((2*(x)+1)/4)
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#define BUTTON_EXTRA_WIDTH 15
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#define BUTTON_EXTRA_HEIGHT 2
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int ui_button_any_drawn = 0;
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void ui_get_button_size( char * text, int * width, int * height )
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{
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int avg;
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gr_get_string_size(text, width, height, &avg );
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*width += BUTTON_EXTRA_WIDTH*2;
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*width += 6;
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*height += BUTTON_EXTRA_HEIGHT*2;
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*height += 6;
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}
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void ui_draw_button( UI_GADGET_BUTTON * button )
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{
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int color;
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if ((button->status==1) || (button->position != button->oldposition))
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{
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ui_button_any_drawn = 1;
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ui_mouse_hide();
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gr_set_current_canvas( button->canvas );
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color = button->canvas->cv_color;
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if (CurWindow->keyboard_focus_gadget == (UI_GADGET *)button)
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gr_set_fontcolor( CRED, -1 );
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else
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{
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if ((button->user_function==NULL) && button->dim_if_no_function )
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gr_set_fontcolor( CGREY, -1 );
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else
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gr_set_fontcolor( CBLACK, -1 );
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}
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button->status = 0;
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if (button->position == 0 )
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{
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if (button->text ) {
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ui_draw_box_out( 0, 0, button->width-1, button->height-1 );
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ui_string_centered( Middle(button->width), Middle(button->height), button->text );
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} else {
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gr_setcolor( CBLACK );
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gr_rect( 0, 0, button->width, button->height );
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gr_setcolor( color );
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gr_rect( 1, 1, button->width-1, button->height-1 );
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}
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} else {
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if (button->text ) {
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ui_draw_box_in( 0, 0, button->width-1, button->height-1 );
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ui_string_centered( Middle(button->width)+1, Middle(button->height)+1, button->text );
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} else {
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gr_setcolor( CBLACK );
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gr_rect( 0, 0, button->width, button->height );
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gr_setcolor( color );
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gr_rect( 2, 2, button->width, button->height );
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}
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}
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button->canvas->cv_color = color;
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ui_mouse_show();
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}
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}
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UI_GADGET_BUTTON * ui_add_gadget_button( UI_DIALOG * dlg, short x, short y, short w, short h, char * text, int (*function_to_call)(void) )
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{
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UI_GADGET_BUTTON * button;
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button = (UI_GADGET_BUTTON *)ui_gadget_add( dlg, 1, x, y, x+w-1, y+h-1 );
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if ( text )
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{
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MALLOC( button->text, char, strlen(text)+1 );
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strcpy( button->text, text );
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} else {
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button->text = NULL;
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}
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button->width = w;
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button->height = h;
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button->position = 0;
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button->oldposition = 0;
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button->pressed = 0;
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button->user_function = function_to_call;
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button->user_function1 = NULL;
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button->hotkey1= -1;
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button->dim_if_no_function = 0;
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return button;
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}
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int ui_button_do( UI_GADGET_BUTTON * button, d_event *event )
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{
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int rval = 0;
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button->oldposition = button->position;
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button->pressed = 0;
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if (event->type == EVENT_MOUSE_BUTTON_DOWN || event->type == EVENT_MOUSE_BUTTON_UP)
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{
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int OnMe;
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OnMe = ui_mouse_on_gadget( (UI_GADGET *)button );
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if (B1_JUST_PRESSED && OnMe)
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{
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button->position = 1;
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rval = 1;
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}
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else if (B1_JUST_RELEASED)
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{
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if ((button->position == 1) && OnMe)
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button->pressed = 1;
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button->position = 0;
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}
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}
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if (event->type == EVENT_KEY_COMMAND)
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{
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int keypress;
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keypress = event_key_get(event);
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if ((keypress == button->hotkey) ||
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((keypress == button->hotkey1) && button->user_function1) ||
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((CurWindow->keyboard_focus_gadget==(UI_GADGET *)button) && ((keypress==KEY_SPACEBAR) || (keypress==KEY_ENTER)) ))
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{
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button->position = 2;
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rval = 1;
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}
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}
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else if (event->type == EVENT_KEY_RELEASE)
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{
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int keypress;
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keypress = event_key_get(event);
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button->position = 0;
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if ((keypress == button->hotkey) ||
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((CurWindow->keyboard_focus_gadget==(UI_GADGET *)button) && ((keypress==KEY_SPACEBAR) || (keypress==KEY_ENTER)) ))
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button->pressed = 1;
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if ((keypress == button->hotkey1) && button->user_function1)
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{
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button->user_function1();
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rval = 1;
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}
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}
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ui_draw_button( button );
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if (button->pressed && button->user_function )
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{
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button->user_function();
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rval = 1;
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}
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return rval;
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}
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