示例#1
0
文件: q3dockarea.cpp 项目: Suneal/qt
static void place_line(QList<Q3DockData> &lastLine, Qt::Orientation o, int linestrut, int fullextent, int tbstrut, int maxsize, Q3DockAreaLayout *)
{
    Q3DockWindow *last = 0;
    QRect lastRect;
    for (QList<Q3DockData>::Iterator it = lastLine.begin(); it != lastLine.end(); ++it) {
        if (tbstrut != -1 && qobject_cast<Q3ToolBar*>((*it).w))
            (*it).rect.setHeight(tbstrut);
        if (!last) {
            last = (*it).w;
            lastRect = (*it).rect;
            continue;
        }
        if (!last->isStretchable()) {
            int w = qMin(lastRect.width(), maxsize);
            set_geometry(last, lastRect.x(), lastRect.y(), w, lastRect.height(), o);
        } else {
            int w = qMin((*it).rect.x() - lastRect.x(), maxsize);
            set_geometry(last, lastRect.x(), lastRect.y(), w,
                          last->isResizeEnabled() ? linestrut : lastRect.height(), o);
        }
        last = (*it).w;
        lastRect = (*it).rect;
    }
    if (!last)
        return;
    if (!last->isStretchable()) {
        int w = qMin(lastRect.width(), maxsize);
        set_geometry(last, lastRect.x(), lastRect.y(), w, lastRect.height(), o);
    } else {
        int w = qMin(fullextent - lastRect.x() - (o == Qt::Vertical ? 1 : 0), maxsize);
        set_geometry(last, lastRect.x(), lastRect.y(), w,
                      last->isResizeEnabled() ? linestrut : lastRect.height(), o);
    }
}
示例#2
0
文件: q3dockarea.cpp 项目: Suneal/qt
int Q3DockAreaLayout::layoutItems(const QRect &rect, bool testonly)
{
    if (dockWindows->isEmpty())
        return 0;

    dirty = false;

    // some corrections
    QRect r = rect;
    if (orientation() == Qt::Vertical)
        r.setHeight(r.height() - 3);

    // init
    lines.clear();
    ls.clear();
    int start = start_pos(r, orientation());
    int pos = start;
    int sectionpos = 0;
    int linestrut = 0;
    QList<Q3DockData> lastLine;
    int tbstrut = -1;
    int maxsize = size_extent(rect.size(), orientation());
    int visibleWindows = 0;

    // go through all widgets in the dock
    for (int i = 0; i < dockWindows->size(); ++i) {
        Q3DockWindow *dw = dockWindows->at(i);
        if (dw->isHidden())
            continue;
        ++visibleWindows;
        // find position for the widget: This is the maximum of the
        // end of the previous widget and the offset of the widget. If
        // the position + the width of the widget dosn't fit into the
        // dock, try moving it a bit back, if possible.
        int op = pos;
        int dockExtend = dock_extent(dw, orientation(), maxsize);
        if (!dw->isStretchable()) {
            pos = qMax(pos, dw->offset());
            if (pos + dockExtend > size_extent(r.size(), orientation()) - 1)
                pos = qMax(op, size_extent(r.size(), orientation()) - 1 - dockExtend);
        }
        if (!lastLine.isEmpty() && !dw->newLine() && space_left(rect, pos, orientation()) < dockExtend)
            shrink_extend(dw, dockExtend, space_left(rect, pos, orientation()), orientation());
        // if the current widget doesn't fit into the line anymore and it is not the first widget of the line
        if (!lastLine.isEmpty() &&
             (space_left(rect, pos, orientation()) < dockExtend || dw->newLine())) {
            if (!testonly) // place the last line, if not in test mode
                place_line(lastLine, orientation(), linestrut, size_extent(r.size(), orientation()), tbstrut, maxsize, this);
            // remember the line coordinats of the last line
            if (orientation() == Qt::Horizontal)
                lines.append(QRect(0, sectionpos, r.width(), linestrut));
            else
                lines.append(QRect(sectionpos, 0, linestrut, r.height()));
            // do some clearing for the next line
            lastLine.clear();
            sectionpos += linestrut;
            linestrut = 0;
            pos = start;
            tbstrut = -1;
        }

        // remember first widget of a line
        if (lastLine.isEmpty()) {
            ls.append(dw);
            // try to make the best position
            int op = pos;
            if (!dw->isStretchable())
                pos = qMax(pos, dw->offset());
            if (pos + dockExtend > size_extent(r.size(), orientation()) - 1)
                pos = qMax(op, size_extent(r.size(), orientation()) - 1 - dockExtend);
        }
        // do some calculations and add the remember the rect which the docking widget requires for the placing
        QRect dwRect(pos, sectionpos, dockExtend, dock_strut(dw, orientation() ));
        lastLine.append(Q3DockData(dw, dwRect));
        if (qobject_cast<Q3ToolBar*>(dw))
            tbstrut = qMax(tbstrut, dock_strut(dw, orientation()));
        linestrut = qMax(dock_strut(dw, orientation()), linestrut);
        add_size(dockExtend, pos, orientation());
    }

    // if some stuff was not placed/stored yet, do it now
    if (!testonly)
        place_line(lastLine, orientation(), linestrut, size_extent(r.size(), orientation()), tbstrut, maxsize, this);
    if (orientation() == Qt::Horizontal)
        lines.append(QRect(0, sectionpos, r.width(), linestrut));
    else
        lines.append(QRect(sectionpos, 0, linestrut, r.height()));
    if (lines.size() >= 2 && *(--lines.end()) == *(--(--lines.end())))
        lines.removeLast();

    bool hadResizable = false;
    for (int i = 0; i < dockWindows->size(); ++i) {
        Q3DockWindow *dw = dockWindows->at(i);
        if (!dw->isVisibleTo(parentWidget))
            continue;
        hadResizable = hadResizable || dw->isResizeEnabled();
        dw->updateSplitterVisibility(visibleWindows > 1); //!dw->area()->isLastDockWindow(dw));
        if (Q3ToolBar *tb = qobject_cast<Q3ToolBar *>(dw))
            tb->checkForExtension(dw->size());
    }
    return sectionpos + linestrut;
}