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/* ------------------------------------------------------------------------- */
/* */
/* widget_layer.cpp Widget Layer */
/* */
/* opie developers <opie@handhelds.org> */
/* */
/* ------------------------------------------------------------------------- */
#include "widget_layer.h"
#include <string.h>
//#include <
WidgetLayer::WidgetLayer( const Profile &config, QWidget *parent, const char *name ) : QFrame( parent, name )
{
// get the clipboard
m_clipboard = QApplication::clipboard();
// when data on clipboard changes, clear selection
QObject::connect( (QObject*) m_clipboard, SIGNAL( dataChanged() ),
(QObject*)this, SLOT( onClearSelection() ) );
// initialize vars:
m_lines = 1;
m_columns = 1;
m_resizing = false;
// just for demonstrating
//m_image = QArray<Character>( m_lines * m_columns );
m_image = QArray<Character>( 1 );
// we need to install an event filter,
// to emit keypresses.
qApp->installEventFilter( this );
}
WidgetLayer::~WidgetLayer()
{
// clean up
delete m_image;
}
QSize WidgetLayer::sizeHint()
{
return size();
}
/* --------------------------------- audio ---------------------------------- */
void WidgetLayer::bell()
{
QApplication::beep();
}
bool WidgetLayer::eventFilter( QObject *obj, QEvent *e )
{
if ( (e->type() == QEvent::Accel ||
e->type() == QEvent::AccelAvailable ) && qApp->focusWidget() == this ) {
static_cast<QKeyEvent *>( e )->ignore();
return true;
}
if ( obj != this /* when embedded */ && obj != parent() /* when standalone */ )
return false; // not us
#ifdef FAKE_CTRL_AND_ALT
static bool control = false;
static bool alt = false;
// qDebug(" Has a keyboard with no CTRL and ALT keys, but we fake it:");
bool dele = false;
if ( e->type() == QEvent::KeyPress || e->type() == QEvent::KeyRelease ) {
QKeyEvent* ke = (QKeyEvent*)e;
bool keydown = e->type() == QEvent::KeyPress || ke->isAutoRepeat();
switch (ke->key()) {
case Key_F9: // let this be "Control"
control = keydown;
e = new QKeyEvent(QEvent::KeyPress, Key_Control, 0, ke->state());
dele=TRUE;
break;
case Key_F13: // let this be "Alt"
alt = keydown;
e = new QKeyEvent(QEvent::KeyPress, Key_Alt, 0, ke->state());
dele=TRUE;
break;
default:
if ( control ) {
int a = toupper(ke->ascii())-64;
if ( a >= 0 && a < ' ' ) {
e = new QKeyEvent(e->type(), ke->key(),
a, ke->state()|ControlButton,
QChar(a,0));
dele=TRUE;
}
}
if ( alt ) {
e = new QKeyEvent(e->type(), ke->key(),
ke->ascii(), ke->state()|AltButton, ke->text());
dele=TRUE;
}
}
}
#endif
if ( e->type() == QEvent::KeyPress ) {
QKeyEvent* ke = (QKeyEvent*)e;
//actSel=0; // Key stroke implies a screen update, so Widget won't
// know where the current selection is.
// qDebug("key pressed is 0x%x",ke->key());
if( ke->state() == ShiftButton && ke->key() == Key_Tab) { //lets hardcode this sucker
insertText("\\"); // expose
} else
emit keyPressed( ke ); // expose
ke->accept();
#ifdef FAKE_CTRL_AND_ALT
if ( dele ) delete e;
#endif
return true; // stop the event
}
return QFrame::eventFilter( obj, e );
}
/* --------------------------------- screen --------------------------------- */
void WidgetLayer::propagateSize()
{
QArray<Character> oldimage = m_image.copy();
int oldlines = m_lines;
int oldcolumns = m_columns;
makeImage();
// copy old image, to reduce flicker
if ( ! oldimage.isEmpty() )
{
int lins = QMIN( oldlines, m_lines );
int cols = QMIN( oldcolumns, m_columns );
for ( int lin = 0; lin < lins; ++lin )
{
memcpy( (void*) &m_image[m_columns*lin],
(void*) &oldimage[oldcolumns*lin],
cols*sizeof( Character ) );
}
}
else
clearImage();
delete oldimage;
m_resizing = true;
emit imageSizeChanged( m_lines, m_columns );
m_resizing = false;
}
void WidgetLayer::makeImage()
{
calcGeometry();
m_image = QArray<Character>( m_columns * m_lines );
clearImage();
}
void WidgetLayer::clearImage()
{
//should this belong here??
for ( int y = 0; y < m_lines; y++ )
for ( int x = 0; x < m_columns; x++ )
{
m_image[loc(x,y)].c = 0xff;
m_image[loc(x,y)].f = 0xff;
m_image[loc(x,y)].b = 0xff;
m_image[loc(x,y)].r = 0xff;
}
}
/* --------------------------------- selection ------------------------------ */
void WidgetLayer::pasteClipboard()
{
insertSelection();
}
void WidgetLayer::insertSelection()
{
QString text = QApplication::clipboard()->text();
if ( ! text.isNull() )
{
text.replace( QRegExp( "\n" ), "\r" );
insertText( text );
// selection should be unselected
emit selectionCleared();
}
}
void WidgetLayer::insertText( QString text )
{
// text is inserted as key event
QKeyEvent e( QEvent::KeyPress, 0, -1, 0, text);
emit keyPressed( &e );
}
void WidgetLayer::onClearSelection()
{
emit selectionCleared();
}
void WidgetLayer::setSelection( const QString& text )
{
// why get the clipboard, we have it as instance var...
QObject *m_clipboard = QApplication::clipboard();
// we know, that cliboard changes, when we change clipboard
QObject::disconnect( (QObject*) m_clipboard, SIGNAL( dataChanged() ),
(QObject*) this, SLOT( selectionCleared() ) );
QApplication::clipboard()->setText( text );
QObject::connect( (QObject*) m_clipboard, SIGNAL( dataChanged() ),
(QObject*) this, SLOT( selectionCleared() ) );
}
/////////
// special font characters
/////////
unsigned short vt100_graphics[32] =
{ // 0/8 1/9 2/10 3/11 4/12 5/13 6/14 7/15
0x0020, 0x25C6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0,
0x00b1, 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c,
0xF800, 0xF801, 0x2500, 0xF803, 0xF804, 0x251c, 0x2524, 0x2534,
0x252c, 0x2502, 0x2264, 0x2265, 0x03C0, 0x2260, 0x00A3, 0x00b7
};
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