Initial revision.
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curt
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#include "puLocal.h"
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void puInput::normalize_cursors ( void )
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{
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char val [ PUSTRING_MAX ] ;
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getValue ( val ) ;
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int sl = strlen ( val ) ;
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/* Clamp the positions to the limits of the text. */
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if ( cursor_position < 0 ) cursor_position = 0 ;
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if ( select_start_position < 0 ) select_start_position = 0 ;
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if ( select_end_position < 0 ) select_end_position = 0 ;
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if ( cursor_position > sl ) cursor_position = sl ;
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if ( select_start_position > sl ) select_start_position = sl ;
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if ( select_end_position > sl ) select_end_position = sl ;
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/* Swap the ends of the select window if they get crossed over */
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if ( select_end_position < select_start_position )
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{
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int tmp = select_end_position ;
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select_end_position = select_start_position ;
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select_start_position = tmp ;
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}
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}
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void puInput::draw ( int dx, int dy )
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{
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normalize_cursors () ;
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if ( !visible ) return ;
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/* 3D Input boxes look nicest if they are always in inverse style. */
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abox . draw ( dx, dy, (style==PUSTYLE_SMALL_BEVELLED) ? -style :
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(accepting ? -style : style ), colour, FALSE ) ;
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int xx = puGetStringWidth ( legendFont, " " ) ;
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int yy = ( abox.max[1] - abox.min[1] - puGetStringHeight(legendFont) ) / 2 ;
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if ( accepting )
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{
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char val [ PUSTRING_MAX ] ;
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getValue ( val ) ;
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/* Highlight the select area */
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if ( select_end_position > 0 &&
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select_end_position != select_start_position )
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{
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val [ select_end_position ] = '\0' ;
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int cpos2 = puGetStringWidth ( legendFont, val ) + xx + dx + abox.min[0] ;
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val [ select_start_position ] = '\0' ;
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int cpos1 = puGetStringWidth ( legendFont, val ) + xx + dx + abox.min[0] ;
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glColor3f ( 1.0, 1.0, 0.7 ) ;
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glRecti ( cpos1, dy + abox.min[1] + 6 ,
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cpos2, dy + abox.max[1] - 6 ) ;
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}
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}
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/* Draw the text */
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{
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/* If greyed out then halve the opacity when drawing the label and legend */
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if ( active )
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glColor4fv ( colour [ PUCOL_LEGEND ] ) ;
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else
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glColor4f ( colour [ PUCOL_LEGEND ][0],
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colour [ PUCOL_LEGEND ][1],
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colour [ PUCOL_LEGEND ][2],
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colour [ PUCOL_LEGEND ][3] / 2.0 ) ; /* 50% more transparent */
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char val [ PUSTRING_MAX ] ;
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getValue ( val ) ;
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puDrawString ( legendFont, val,
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dx + abox.min[0] + xx,
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dy + abox.min[1] + yy ) ;
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draw_label ( dx, dy ) ;
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}
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if ( accepting )
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{
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char val [ PUSTRING_MAX ] ;
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getValue ( val ) ;
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/* Draw the 'I' bar cursor. */
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if ( cursor_position >= 0 )
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{
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val [ cursor_position ] = '\0' ;
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int cpos = puGetStringWidth ( legendFont, val ) + xx + dx + abox.min[0] ;
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glColor3f ( 0.1, 0.1, 1.0 ) ;
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glBegin ( GL_LINES ) ;
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glVertex2i ( cpos , dy + abox.min[1] + 7 ) ;
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glVertex2i ( cpos , dy + abox.max[1] - 7 ) ;
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glVertex2i ( cpos - 1, dy + abox.min[1] + 7 ) ;
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glVertex2i ( cpos - 1, dy + abox.max[1] - 7 ) ;
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glVertex2i ( cpos - 4, dy + abox.min[1] + 7 ) ;
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glVertex2i ( cpos + 3, dy + abox.min[1] + 7 ) ;
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glVertex2i ( cpos - 4, dy + abox.max[1] - 7 ) ;
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glVertex2i ( cpos + 3, dy + abox.max[1] - 7 ) ;
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glEnd () ;
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}
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}
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}
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void puInput::doHit ( int button, int updown, int x, int /* y */ )
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{
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if ( button == PU_LEFT_BUTTON )
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{
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/* Most GUI's activate a button on button-UP not button-DOWN. */
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if ( updown == active_mouse_edge || active_mouse_edge == PU_UP_AND_DOWN )
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{
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lowlight () ;
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char *strval ;
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getValue ( & strval ) ;
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char *tmpval = new char [ strlen(strval) + 1 ] ;
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strcpy ( tmpval, strval ) ;
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int i = strlen ( tmpval ) ;
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while ( x <= puGetStringWidth ( legendFont, tmpval ) + abox.min[0] &&
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i >= 0 )
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tmpval[--i] = '\0' ;
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accepting = TRUE ;
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cursor_position = i ;
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normalize_cursors () ;
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invokeCallback () ;
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}
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else
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highlight () ;
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}
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else
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lowlight () ;
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}
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int puInput::checkKey ( int key, int updown )
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{
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(updown,updown);
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if ( ! isAcceptingInput() || ! isActive () || ! isVisible () )
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return FALSE ;
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normalize_cursors () ;
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char *p ;
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switch ( key )
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{
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case PU_KEY_PAGE_UP :
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case PU_KEY_PAGE_DOWN :
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case PU_KEY_INSERT : return FALSE ;
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case PU_KEY_UP :
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case PU_KEY_DOWN :
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case 0x1B /* ESC */ :
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case '\t' :
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case '\r' :
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case '\n' : /* Carriage return/Line Feed/TAB -- End of input */
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rejectInput () ;
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normalize_cursors () ;
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invokeCallback () ;
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break ;
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case '\b' : /* Backspace */
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if ( cursor_position > 0 )
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for ( p = & string [ --cursor_position ] ; *p != '\0' ; p++ )
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*p = *(p+1) ;
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break ;
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case 0x7F : /* DEL */
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if ( select_start_position != select_end_position )
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{
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char *p1 = & string [ select_start_position ] ;
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char *p2 = & string [ select_end_position ] ;
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while ( *p1 != '\0' )
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*p1++ = *p2++ ;
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select_end_position = select_start_position ;
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}
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else
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for ( p = & string [ cursor_position ] ; *p != '\0' ; p++ )
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*p = *(p+1) ;
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break ;
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case 0x15 /* ^U */ : string [ 0 ] = '\0' ; break ;
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case PU_KEY_HOME : cursor_position = 0 ; break ;
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case PU_KEY_END : cursor_position = PUSTRING_MAX ; break ;
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case PU_KEY_LEFT : cursor_position-- ; break ;
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case PU_KEY_RIGHT : cursor_position++ ; break ;
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default:
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if ( key < ' ' || key > 127 ) return FALSE ;
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if ( strlen ( string ) >= PUSTRING_MAX )
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return FALSE ;
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for ( p = & string [ strlen(string) ] ;
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p != &string[cursor_position] ; p-- )
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*(p+1) = *p ;
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*p = key ;
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cursor_position++ ;
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break ;
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}
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setValue ( string ) ;
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normalize_cursors () ;
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return TRUE ;
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}
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