void Text::expose(unsigned line, unsigned column)
{
if (! canvas_)
return;
String string;
if (line < text_->Height())
{
string = text_->getNth(line);
}
FontBoundingBox fbb;
font_->font_bbox(fbb);
Coord x = columnCoord(string, column) - allocation_->left() + curLowerX_;
bool invisibleX = (x < curLowerX_) || ((x + width(' ')) > curUpperX_);
Coord y = line * (fbb.ascent() + fbb.descent());
bool invisibleY = (y < curLowerY_) || ((y + fbb.ascent() +
fbb.descent()) > curUpperY_);
if (invisibleX)
{
scroll_to(Dimension_X, x - (curUpperX_ - curLowerX_) / 2);
}
if (invisibleY)
{
scroll_to(Dimension_Y, height() - y - (curUpperY_ - curLowerY_) / 2);
}
}
void Text::scroll_backward(DimensionName dimension) {
FontBoundingBox fbb;
font_->font_bbox(fbb);
if (dimension == Dimension_X) {
scroll_to(dimension, cur_lower(Dimension_X) - width(' '));
} else {
scroll_to(dimension, cur_lower(Dimension_Y) -
(fbb.ascent() + fbb.descent()));
}
}
bool NoteEditor::key_pressed (GdkEventKey * ev)
{
bool ret_value = false;
if(!get_editable()) {
return ret_value;
}
switch (ev->keyval)
{
case GDK_KEY_KP_Enter:
case GDK_KEY_Return:
// Allow opening notes with Ctrl + Enter
if (ev->state != Gdk::CONTROL_MASK) {
if (ev->state & Gdk::SHIFT_MASK) {
ret_value = NoteBuffer::Ptr::cast_static(get_buffer())->add_new_line (true);
}
else {
ret_value = NoteBuffer::Ptr::cast_static(get_buffer())->add_new_line (false);
}
scroll_to (get_buffer()->get_insert());
}
break;
case GDK_KEY_Tab:
ret_value = NoteBuffer::Ptr::cast_static(get_buffer())->add_tab ();
scroll_to (get_buffer()->get_insert());
break;
case GDK_KEY_ISO_Left_Tab:
ret_value = NoteBuffer::Ptr::cast_static(get_buffer())->remove_tab ();
scroll_to (get_buffer()->get_insert());
break;
case GDK_KEY_Delete:
if (Gdk::SHIFT_MASK != (ev->state & Gdk::SHIFT_MASK)) {
ret_value = NoteBuffer::Ptr::cast_static(get_buffer())->delete_key_handler();
scroll_to (get_buffer()->get_insert());
}
break;
case GDK_KEY_BackSpace:
ret_value = NoteBuffer::Ptr::cast_static(get_buffer())->backspace_key_handler();
break;
case GDK_KEY_Left:
case GDK_KEY_Right:
case GDK_KEY_Up:
case GDK_KEY_Down:
case GDK_KEY_End:
ret_value = false;
break;
default:
NoteBuffer::Ptr::cast_static(get_buffer())->check_selection();
break;
}
return ret_value;
}
void
scrollable_widget_rep::handle_set_coord2 (set_coord2_event ev) {
if (ev->which == "scroll position")
scroll_to (ev->c1, ev->c2);
else if (ev->which == "extra width");
else attribute_widget_rep::handle_set_coord2 (ev);
}
void Fl_ImageViewer::image(Fl_Image* aimg)
{
if( aimg == NULL )
return;
#ifdef DEBUG
if ( dispbox->label() != NULL )
{
dispbox->label( NULL );
}
#endif
unloadimage();
imgsrc = aimg->copy( aimg->w(), aimg->h() );
if ( imgsrc != NULL )
{
dispbox->resize( x(), y(), x()+1, y()+1 );
dispbox->image( imgsrc );
dispbox->resize( x(), y(), x() + imgsrc->w(), y() + imgsrc->h() );
dispbox->show();
scroll_to(0, 0);
redraw();
}
}
static void retain_position(struct selector *sel)
{
size_t n;
struct listing *l;
if (sel->target == NULL)
return;
l = sel->view_listing;
switch (sel->sort) {
case SORT_ARTIST:
case SORT_BPM:
n = listing_find(l, sel->target, sel->sort);
break;
case SORT_PLAYLIST:
/* Linear search */
for (n = 0; n < l->entries; n++) {
if (l->record[n] == sel->target)
break;
}
break;
default:
abort();
}
if (n < l->entries)
scroll_to(&sel->records, n);
}
/* Scrolls the image view by the specified offsets. Notifies the adjustments
* about their new values.
*/
static void
scroll_by (ImageView *view, int xofs, int yofs)
{
ImageViewPrivate *priv;
priv = view->priv;
scroll_to (view, priv->xofs + xofs, priv->yofs + yofs, TRUE);
}
/* Callback used when an adjustment is changed */
static void
adjustment_changed_cb (GtkAdjustment *adj, gpointer data)
{
ImageView *view;
ImageViewPrivate *priv;
view = IMAGE_VIEW (data);
priv = view->priv;
scroll_to (view, priv->hadj->value, priv->vadj->value, FALSE);
}
void selector_toggle(struct selector_t *sel)
{
if (!sel->toggled) {
sel->toggle_back = scroll_current(&sel->crates);
scroll_first(&sel->crates);
sel->toggled = true;
} else {
scroll_to(&sel->crates, sel->toggle_back);
sel->toggled = false;
}
crate_has_changed(sel);
}
void EinDaten::OnBnClickedLoeschen()
{
UpdateData(TRUE);
if (DemoData.get_wert(auswahl, nummer - 1) != 0)
{
DemoData.set_wert(auswahl, nummer - 1, 0);
GetParentFrame()->GetActiveDocument()->SetModifiedFlag();
update_all(0, 0, 1);
}
scroll_to(nummer + 1);
GotoDlgCtrl(GetDlgItem(IDC_WERT));
}
/* Drags the image to the specified position */
static void
drag_to (ImageView *view, int x, int y)
{
ImageViewPrivate *priv;
int dx, dy;
priv = view->priv;
dx = priv->drag_anchor_x - x;
dy = priv->drag_anchor_y - y;
x = priv->drag_ofs_x + dx;
y = priv->drag_ofs_y + dy;
scroll_to (view, x, y, TRUE);
}
BOOL EinDaten::OnInitDialog()
{
CDialog::OnInitDialog();
for (int i = 0; i < DemoData.get_anz_z(); i++)
combobox.InsertString(i, DemoData.get_rname(i));
auswahl = 0;
scrollbar.SetScrollRange(1, DemoData.get_anz_s());
scroll_to(1);
UpdateData(FALSE); //Wir aktualisieren aus der Bildschirmdarstellung unsere Membervariablen
GotoDlgCtrl(GetDlgItem(IDC_WERT)); //Input-Fokus wird auf das Eingabefeld (selektiertes Editierfeld)
return TRUE; // return TRUE unless you set the focus to a control
// AUSNAHME: OCX-Eigenschaftenseite muss FALSE zurückgeben.
}
/**
* image_view_set_pixbuf:
* @view: An image view.
* @pixbuf: A pixbuf.
*
* Sets the pixbuf that an image view will display.
**/
void
image_view_set_pixbuf (ImageView *view, GdkPixbuf *pixbuf)
{
ImageViewPrivate *priv;
g_return_if_fail (view != NULL);
g_return_if_fail (IS_IMAGE_VIEW (view));
priv = view->priv;
if (pixbuf) {
g_object_ref (pixbuf);
if (view->priv->pixbuf)
g_object_unref (view->priv->pixbuf);
}
view->priv->pixbuf = pixbuf;
remove_dirty_region (view);
scroll_to (view, 0, 0, TRUE);
gtk_widget_queue_draw (GTK_WIDGET (view));
}
//nSBCode = gedrückte 'Buttons' der Scrollbar (Dreieck rechts/links, etc.), pScrollBar = Zeiger auf den Scrollbar
void EinDaten::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
UpdateData(TRUE);
if (pScrollBar == &scrollbar)
{
switch (nSBCode)
{
case SB_LEFT: //Ganz links
scroll_to(1);
break;
case SB_RIGHT: //Ganz rechts
scroll_to(DemoData.get_anz_s());
break;
case SB_LINELEFT: //Dreieck links
scroll_to(nummer - 1);
break;
case SB_LINERIGHT: //Dreieck rechts
scroll_to(nummer + 1);
break;
case SB_PAGELEFT: //Zwischenfeld links
scroll_to(nummer - 5);
break;
case SB_PAGERIGHT: //Zwischenfeld rechts
scroll_to(nummer + 5);
break;
case SB_THUMBPOSITION:
case SB_THUMBTRACK: //Positionsänderung
scroll_to(nPos);
break;
case SB_ENDSCROLL:
break;
}
GotoDlgCtrl(GetDlgItem(IDC_WERT));
}
CDialog::OnHScroll(nSBCode, nPos, pScrollBar);
}
void popup_menu::init()
{
iLayout.set_margins(neogfx::margins{});
closed([this]()
{
if (iMenu.is_open())
iMenu.close();
});
for (i_menu::item_index i = 0; i < iMenu.item_count(); ++i)
iLayout.add_item(std::make_shared<menu_item_widget>(*this, iMenu, iMenu.item(i)));
layout_items();
iMenu.open();
iSink += iMenu.item_added([this](i_menu::item_index aIndex)
{
iLayout.add_item(aIndex, std::make_shared<menu_item_widget>(*this, iMenu, iMenu.item(aIndex)));
layout_items();
});
iSink += iMenu.item_removed([this](i_menu::item_index aIndex)
{
iLayout.remove_item(aIndex);
layout_items();
});
iSink += iMenu.item_changed([this](i_menu::item_index)
{
layout_items();
});
iSink += iMenu.item_selected([this](i_menu_item& aMenuItem)
{
if (!app::instance().keyboard().is_keyboard_grabbed_by(*this))
app::instance().keyboard().grab_keyboard(*this);
if (iOpenSubMenu != nullptr)
{
if (aMenuItem.type() == i_menu_item::Action ||
(aMenuItem.type() == i_menu_item::SubMenu && &iOpenSubMenu->menu() != &aMenuItem.sub_menu()))
{
iOpenSubMenu->menu().close();
}
}
scroll_to(layout().get_widget<menu_item_widget>(iMenu.find_item(aMenuItem)));
update();
});
iSink += iMenu.open_sub_menu([this](i_menu& aSubMenu)
{
if (!iOpeningSubMenu && aSubMenu.item_count() > 0)
{
neolib::scoped_flag sf(iOpeningSubMenu);
auto& itemWidget = layout().get_widget<menu_item_widget>(iMenu.find_item(aSubMenu));
close_sub_menu();
iOpenSubMenu = std::make_unique<popup_menu>(*this, itemWidget.sub_menu_position(), aSubMenu);
iSink2 += iOpenSubMenu->menu().closed([this]()
{
if (iOpenSubMenu != nullptr)
iOpenSubMenu->close();
});
iSink2 += iOpenSubMenu->closed([this]()
{
close_sub_menu();
});
}
});
show();
}
void Adjustable::scroll_backward(DimensionName d) {
scroll_to(d, cur_lower(d) - small_scroll(d));
}
void Adjustable::page_backward(DimensionName d) {
scroll_to(d, cur_lower(d) - large_scroll(d));
}
void Text::page_backward(DimensionName dimension) {
scroll_to(dimension, cur_lower(dimension) - cur_length(dimension));
}