void Viewport::Resize () {
canvas->SetBackground(output->GetBgColor());
float px = XPos();
float py = YPos();
float zx = XMag();
float zy = YMag();
perspective->curwidth = xmax+1;
perspective->curheight = ymax+1;
perspective->lx = round(0.90 * perspective->curwidth);
perspective->ly = round(0.90 * perspective->curheight);
DoAdjust(px, py, zx, zy);
}
static void DoMove
(
int *x, int *y,
int dx, int dy,
int cols, int rows
)
{
DoAdjust( x, y, dx, dy, cols, rows );
if( *y==(rows+1) && *x==1 ) {
fb_Locate( rows, cols, -1, 0, 0 );
fb_PrintBufferEx( FB_NEWLINE, sizeof(FB_NEWLINE)-1, 0 );
} else {
fb_Locate( *y, *x, -1, 0, 0 );
}
}
void Viewport::Adjust (Perspective& np) {
long x = np.curx;
long y = np.cury;
AlignHelper(align, x, y, np.curwidth, np.curheight);
float px = float(x - np.x0) / float(np.width);
float py = float(y - np.y0) / float(np.height);
float zx = (
float(np.width) / float(cwidth) *
float(perspective->curwidth) / float(np.curwidth)
);
float zy = (
float(np.height) / float(cheight) *
float(perspective->curheight) / float(np.curheight)
);
DoAdjust(px, py, zx, zy);
np = *perspective;
}
void Viewport::ZoomYBy (float dzy) {
DoAdjust(XPos(), YPos(), XMag(), YMag() * dzy);
}
void Viewport::ZoomXBy (float dzx) {
DoAdjust(XPos(), YPos(), XMag() * dzx, YMag());
}
void Viewport::ZoomYTo (float zy) {
DoAdjust(XPos(), YPos(), XMag(), zy);
}
void Viewport::ZoomXTo (float zx) {
DoAdjust(XPos(), YPos(), zx, YMag());
}
void Viewport::ZoomTo (float zx, float zy) {
DoAdjust(XPos(), YPos(), zx, zy);
}
void Viewport::ScrollYBy (float dpy) {
DoAdjust(XPos(), YPos() + dpy, XMag(), YMag());
}
void Viewport::ScrollXBy (float dpx) {
DoAdjust(XPos() + dpx, YPos(), XMag(), YMag());
}
void Viewport::ScrollYTo (float py) {
DoAdjust(XPos(), py, XMag(), YMag());
}
void Viewport::ScrollXTo (float px) {
DoAdjust(px, YPos(), XMag(), YMag());
}
void Viewport::ScrollTo (float px, float py) {
DoAdjust(px, py, XMag(), YMag());
}
void Viewport::AdjustBy (float dpx, float dpy, float dzx, float dzy) {
DoAdjust(XPos() + dpx, YPos() + dpy, XMag() * dzx, YMag() * dzy);
}
void Viewport::AdjustTo (float px, float py, float zx, float zy) {
DoAdjust(px, py, zx, zy);
}
FBCALL FBSTRING *fb_ConReadLine( int soft_cursor )
{
FBSTRING result = { 0 };
int current_x, current_y;
int cols, rows;
size_t pos, len, tmp_buffer_len = 0;
int cursor_visible;
int k;
char ch, tmp_buffer[12];
fb_GetSize(&cols, &rows);
cursor_visible = (fb_Locate( 0, 0, -1, 0, 0 ) & 0x10000) != 0;
fb_Locate( 0, 0, FALSE, 0, 0 );
pos = len = 0;
fb_PrintBufferEx( NULL, 0, 0 );
/* Ensure that the cursor is visible during INPUT */
fb_Locate( 0, 0, (soft_cursor == FALSE), 0, 0 );
do {
size_t delete_char_count = 0, add_char = FALSE;
FBSTRING *sTmp;
fb_GetXY(¤t_x, ¤t_y);
if( soft_cursor )
{
fb_PrintFixString( 0, "\377", 0 );
fb_Locate( current_y, current_x, FALSE, 0, 0 );
}
while( fb_KeyHit( ) == 0 )
{
fb_Delay( 25 ); /* release time slice */
}
sTmp = fb_Inkey( );
if( sTmp->data != NULL )
{
if( FB_STRSIZE(sTmp) == 2 )
{
k = FB_MAKE_EXT_KEY(sTmp->data[1]);
ch = 0;
}
else
{
k = FB_MAKE_KEY(ch = sTmp->data[0]);
}
fb_hStrDelTemp( sTmp );
}
else
{
k = 0;
continue;
}
if( soft_cursor )
{
char mask[2] = { ((result.data != NULL) && (pos < len)? result.data[pos]: ' '), '\0' };
fb_PrintFixString( 0, mask, 0 );
fb_Locate( current_y, current_x, FALSE, 0, 0 );
}
switch (k) {
case 8:
/* DEL */
if (pos!=0) {
DoMove( ¤t_x, ¤t_y, -1, 0, cols, rows );
--pos;
delete_char_count = 1;
}
break;
case 9:
/* TAB */
tmp_buffer_len = ((pos + 8) / 8 * 8) - pos;
memset(tmp_buffer, 32, tmp_buffer_len);
add_char = TRUE;
break;
case 27:
/* ESC */
DoMove( ¤t_x, ¤t_y, -pos, 0, cols, rows );
pos = 0;
delete_char_count = len;
break;
case FB_MAKE_EXT_KEY(0x53):
/* CLeaR */
if( len!=pos ) {
delete_char_count = 1;
} else {
fb_Beep();
}
break;
case FB_MAKE_EXT_KEY(0x4B):
/* Cursor LEFT */
if( pos != 0 ) {
DoMove( ¤t_x, ¤t_y, -1, 0, cols, rows );
--pos;
}
break;
case FB_MAKE_EXT_KEY(0x4D):
/* Cursor RIGHT */
if( pos != len ) {
DoMove( ¤t_x, ¤t_y, 1, 0, cols, rows );
++pos;
}
break;
case FB_MAKE_EXT_KEY(0x47):
/* HOME */
DoMove( ¤t_x, ¤t_y, -pos, 0, cols, rows );
pos = 0;
break;
case FB_MAKE_EXT_KEY(0x4F):
/* END */
DoMove( ¤t_x, ¤t_y, len-pos, 0, cols, rows );
pos = len;
break;
case FB_MAKE_EXT_KEY(0x48):
/* Cursor UP */
if( pos >= cols) {
DoMove( ¤t_x, ¤t_y, -cols, 0, cols, rows );
pos -= cols;
}
break;
case FB_MAKE_EXT_KEY(0x50):
/* Cursor DOWN */
if( ( pos + cols ) <= len ) {
DoMove( ¤t_x, ¤t_y, cols, 0, cols, rows );
pos += cols;
}
break;
default:
if( k>=32 && k<=255 ) {
tmp_buffer[0] = (char) k;
tmp_buffer_len = 1;
add_char = TRUE;
/* DoMove( ¤t_x, ¤t_y, 1, 0, cols ); */
}
break;
}
if( delete_char_count!=0 || add_char ) {
/* Turn off the cursor during output (speed-up) */
fb_Locate( 0, 0, FALSE, 0, 0 );
}
if( delete_char_count ) {
FBSTRING *str_fill;
FBSTRING *str_left = fb_StrMid( &result, 1, pos );
FBSTRING *str_right = fb_StrMid( &result,
pos + 1 + delete_char_count,
len - pos - delete_char_count);
fb_StrAssign( &result, -1, str_left, -1, FALSE );
fb_StrConcatAssign( &result, -1, str_right, -1, FALSE );
len -= delete_char_count;
FB_LOCK();
fb_PrintBufferEx( result.data + pos, len - pos, 0 );
/* Overwrite all deleted characters with SPC's */
str_fill = fb_StrFill1 ( delete_char_count, ' ' );
fb_PrintBufferEx( str_fill->data, delete_char_count, 0 );
fb_hStrDelTemp( str_fill );
fb_Locate( current_y, current_x, -1, 0, 0 );
FB_UNLOCK();
}
if( add_char ) {
tmp_buffer[tmp_buffer_len] = 0;
}
if( add_char ) {
int old_x = current_x, old_y = current_y;
FBSTRING *str_add = fb_StrAllocTempDescF( tmp_buffer, tmp_buffer_len + 1 );
FBSTRING *str_left = fb_StrMid( &result, 1, pos );
FBSTRING *str_right = fb_StrMid( &result, pos + 1, len - pos);
fb_StrAssign( &result, -1, str_left, -1, FALSE );
fb_StrConcatAssign( &result, -1, str_add, -1, FALSE );
fb_StrConcatAssign( &result, -1, str_right, -1, FALSE );
len += tmp_buffer_len;
FB_LOCK();
fb_PrintBufferEx( result.data + pos, len - pos, 0 );
fb_GetXY(¤t_x, ¤t_y);
if( pos==(len-tmp_buffer_len) ) {
current_x = old_x; current_y = old_y;
DoMove( ¤t_x, ¤t_y, tmp_buffer_len, 0, cols, rows );
} else {
int tmp_x_2 = old_x, tmp_y_2 = old_y;
DoAdjust( &tmp_x_2, &tmp_y_2, len - pos, 0, cols, rows );
if( tmp_y_2 > (rows+1) || (tmp_y_2==(rows+1) && tmp_x_2>1) ) {
DoMove( ¤t_x, ¤t_y, -(len - pos - tmp_buffer_len), 0, cols, rows );
} else {
current_x = old_x; current_y = old_y;
DoMove( ¤t_x, ¤t_y, tmp_buffer_len, 0, cols, rows );
}
}
pos += tmp_buffer_len;
FB_UNLOCK();
}
fb_Locate( 0, 0, (soft_cursor == FALSE), 0, 0 );
} while (k!='\r' && k!='\n');
FB_LOCK();
/* set cursor to end of line */
fb_GetXY(¤t_x, ¤t_y);
DoMove( ¤t_x, ¤t_y, len - pos, 0, cols, rows );
/* Restore old cursor visibility */
fb_Locate( 0, 0, cursor_visible, 0, 0 );
FB_UNLOCK();
return fb_StrAllocTempResult( &result );
}
