#include "Buffer.h"
#include "BufferView.h"
+#include "CompletionList.h"
#include "Cursor.h"
#include "Dimension.h"
#include "FuncRequest.h"
#include "Paragraph.h"
#include "version.h"
+#include "support/assert.h"
#include "support/debug.h"
#include <QApplication>
-#include <QAbstractListModel>
#include <QHeaderView>
#include <QPainter>
#include <QPixmapCache>
namespace lyx {
namespace frontend {
-class RtlItemDelegate : public QItemDelegate {
+class RtlItemDelegate : public QItemDelegate
+{
public:
- explicit RtlItemDelegate(QObject * parent = 0)
- : QItemDelegate(parent) {}
+ explicit RtlItemDelegate(QObject * parent)
+ : QItemDelegate(parent), enabled_(false)
+ {}
+ void setEnabled(bool enabled = true)
+ {
+ enabled_ = enabled;
+ }
+
protected:
- virtual void drawDisplay(QPainter * painter,
+ void drawDisplay(QPainter * painter,
QStyleOptionViewItem const & option,
QRect const & rect, QString const & text) const
{
+ if (!enabled_) {
+ QItemDelegate::drawDisplay(painter, option, rect, text);
+ return;
+ }
+
// FIXME: do this more elegantly
docstring stltext = qstring_to_ucs4(text);
reverse(stltext.begin(), stltext.end());
QItemDelegate::drawDisplay(painter, option, rect, toqstr(stltext));
}
+
+private:
+ bool enabled_;
};
-class PixmapItemDelegate : public QItemDelegate {
+class PixmapItemDelegate : public QItemDelegate
+{
public:
- explicit PixmapItemDelegate(QObject *parent = 0)
- : QItemDelegate(parent) {}
+ explicit PixmapItemDelegate(QObject * parent)
+ : QItemDelegate(parent)
+ {}
protected:
void paint(QPainter *painter, const QStyleOptionViewItem &option,
};
-class GuiCompletionModel : public QAbstractListModel {
+class GuiCompletionModel : public QAbstractListModel
+{
public:
///
- GuiCompletionModel(QObject * parent,
- Inset::CompletionList const * l)
- : QAbstractListModel(parent), list_(l) {}
+ GuiCompletionModel(QObject * parent, CompletionList const * l)
+ : QAbstractListModel(parent), list_(l)
+ {}
///
- ~GuiCompletionModel()
- { delete list_; }
+ ~GuiCompletionModel() { delete list_; }
///
bool sorted() const
{
if (list_)
return list_->sorted();
- else
- return false;
+ return false;
}
///
int columnCount(const QModelIndex & /*parent*/ = QModelIndex()) const
if (index.column() == 0)
return toqstr(list_->data(index.row()));
- else if (index.column() == 1) {
+
+ if (index.column() == 1) {
// get icon from cache
QPixmap scaled;
QString const name = ":" + toqstr(list_->icon(index.row()));
QPixmap p = QPixmap(name);
if (!p.isNull()) {
// scale it to 16x16 or smaller
- scaled
- = p.scaled(min(16, p.width()), min(16, p.height()),
+ scaled = p.scaled(min(16, p.width()), min(16, p.height()),
Qt::KeepAspectRatio, Qt::SmoothTransformation);
}
}
private:
- ///
- Inset::CompletionList const * list_;
+ /// owned by us
+ CompletionList const * list_;
};
GuiCompleter::GuiCompleter(GuiWorkArea * gui, QObject * parent)
: QCompleter(parent), gui_(gui), updateLock_(0),
- inlineVisible_(false)
+ inlineVisible_(false), popupVisible_(false),
+ modelActive_(false)
{
// Setup the completion popup
setModel(new GuiCompletionModel(this, 0));
listView->setIndentation(0);
listView->setUniformRowHeights(true);
setPopup(listView);
- popup()->setItemDelegateForColumn(1, new PixmapItemDelegate(this));
+
rtlItemDelegate_ = new RtlItemDelegate(this);
+ popup()->setItemDelegateForColumn(0, rtlItemDelegate_);
+ popup()->setItemDelegateForColumn(1, new PixmapItemDelegate(this));
// create timeout timers
popup_timer_.setSingleShot(true);
}
+bool GuiCompleter::completionAvailable() const
+{
+ if (!modelActive_)
+ return false;
+
+ size_t n = popup()->model()->rowCount();
+
+ // if there is exactly one, we have to check whether it is a
+ // real completion, i.e. longer than the current prefix.
+ if (n == 1 && completionPrefix() == currentCompletion())
+ return false;
+
+ return n > 0;
+}
+
+
bool GuiCompleter::popupVisible() const
{
- return popup()->isVisible();
+ return popupVisible_;
}
bool possibleInlineState = inlinePossible(cur) && cursorInView;
// we moved or popup state is not ok for popup?
- if ((moved && !keep) || !possiblePopupState) {
- // stop an old completion timer
- if (popup_timer_.isActive())
- popup_timer_.stop();
-
- // hide old popup
- if (popupVisible())
- popup()->hide();
- }
+ if ((moved && !keep) || !possiblePopupState)
+ hidePopup(cur);
// we moved or inline state is not ok for inline completion?
- if ((moved && !keep) || !possibleInlineState) {
- // stop an old completion timer
- if (inline_timer_.isActive())
- inline_timer_.stop();
-
- // hide old inline completion
- if (inlineVisible()) {
- gui_->bufferView().setInlineCompletion(cur, DocIterator(), docstring());
- inlineVisible_ = false;
- }
- }
+ if ((moved && !keep) || !possibleInlineState)
+ hideInline(cur);
// we inserted something and are in a possible popup state?
if (!popupVisible() && possiblePopupState && start
&& cur.inset().automaticInlineCompletion())
inline_timer_.start(int(lyxrc.completion_inline_delay * 1000));
- // update prefix if popup is visible or if it will be visible soon
- if (popupVisible() || inlineVisible()
- || popup_timer_.isActive() || inline_timer_.isActive())
- updatePrefix(cur);
+ // update prefix if any completion is possible
+ bool modelActive = modelActive_ && model()->rowCount() > 0;
+ if (possiblePopupState || possibleInlineState) {
+ if (modelActive)
+ updatePrefix(cur);
+ else
+ updateAvailability();
+ }
}
// if popup is not empty, the new selection will
// be our last valid one
QString const & s = currentCompletion();
- if (s.length() > 0)
- last_selection_ = s;
- else
- last_selection_ = old;
-
+ if (popupVisible() || inlineVisible()) {
+ if (s.length() > 0)
+ last_selection_ = s;
+ else
+ last_selection_ = old;
+ }
+
// update inline completion because the default
// completion string might have changed
if (inlineVisible())
if (!cur.inset().completionSupported(cur))
return;
- if (completionCount() == 0)
+ popupVisible_ = true;
+
+ if (completionCount() == 0) {
+ QTimer::singleShot(0, popup(), SLOT(hide()));
return;
-
+ }
+
+ QTimer::singleShot(0, this, SLOT(asyncUpdatePopup()));
+}
+
+
+void GuiCompleter::asyncUpdatePopup()
+{
+ Cursor cur = gui_->bufferView().cursor();
+ if (!cur.inset().completionSupported(cur)) {
+ popupVisible_ = false;
+ return;
+ }
+
// get dimensions of completion prefix
Dimension dim;
int x;
else
rect = QRect(x, y - dim.ascent() - 3, 200, dim.height() + 6);
+ // Resize the columns in the popup.
+ // This should really be in the constructor. But somehow the treeview
+ // has a bad memory about it and we have to tell him again and again.
+ QTreeView * listView = static_cast<QTreeView *>(popup());
+ listView->header()->setStretchLastSection(false);
+ listView->header()->setResizeMode(0, QHeaderView::Stretch);
+ listView->header()->setResizeMode(1, QHeaderView::Fixed);
+ listView->header()->resizeSection(1, 22);
+
// show/update popup
complete(rect);
- QTreeView * p = static_cast<QTreeView *>(popup());
- p->setColumnWidth(0, popup()->width() - 22 - p->verticalScrollBar()->width());
}
+void GuiCompleter::updateAvailability()
+{
+ // this should really only be of interest if no completion is
+ // visible yet, i.e. especially if automatic completion is disabled.
+ if (inlineVisible() || popupVisible())
+ return;
+ Cursor & cur = gui_->bufferView().cursor();
+ if (!popupPossible(cur) && !inlinePossible(cur))
+ return;
+
+ updateModel(cur, false, false);
+}
+
+
void GuiCompleter::updateModel(Cursor & cur, bool popupUpdate, bool inlineUpdate)
{
// value which should be kept selected
// turn the direction of the strings in the popup.
// Qt does not do that itself.
- popup()->setItemDelegateForColumn(0, rtl ? rtlItemDelegate_ : 0);
+ rtlItemDelegate_->setEnabled(rtl);
// set new model
- Inset::CompletionList const * list
- = cur.inset().createCompletionList(cur);
+ CompletionList const * list = cur.inset().createCompletionList(cur);
setModel(new GuiCompletionModel(this, list));
+ modelActive_ = true;
if (list->sorted())
setModelSorting(QCompleter::CaseSensitivelySortedModel);
else
// if popup is not empty, the new selection will
// be our last valid one
- QString const & s = currentCompletion();
- if (s.length() > 0)
- last_selection_ = s;
- else
- last_selection_ = old;
+ if (popupVisible() || inlineVisible()) {
+ QString const & s = currentCompletion();
+ if (s.length() > 0)
+ last_selection_ = s;
+ else
+ last_selection_ = old;
+ }
// show inline completion
if (inlineUpdate)
}
+void GuiCompleter::hidePopup(Cursor &)
+{
+ popupVisible_ = false;
+
+ if (popup_timer_.isActive())
+ popup_timer_.stop();
+
+ // hide popup asynchronously because we might be here inside of
+ // LFUN dispatchers. Hiding a popup can trigger a focus event on the
+ // workarea which then redisplays the cursor. But the metrics are not
+ // yet up to date such that the coord cache has not all insets yet. The
+ // cursorPos methods would triggers asserts in the coord cache then.
+ QTimer::singleShot(0, this, SLOT(asyncHidePopup()));
+
+ // mark that the asynchronous part will reset the model
+ if (!inlineVisible())
+ modelActive_ = false;
+}
+
+
+void GuiCompleter::asyncHidePopup()
+{
+ popup()->hide();
+ if (!inlineVisible())
+ setModel(new GuiCompletionModel(this, 0));
+}
+
+
void GuiCompleter::showInline(Cursor & cur)
{
if (!inlinePossible(cur))
}
+void GuiCompleter::hideInline(Cursor & cur)
+{
+ gui_->bufferView().setInlineCompletion(cur, DocIterator(), docstring());
+ inlineVisible_ = false;
+
+ if (inline_timer_.isActive())
+ inline_timer_.stop();
+
+ // Trigger asynchronous part of hideInline. We might be
+ // in a dispatcher here and the setModel call might
+ // trigger focus events which is are not healthy here.
+ QTimer::singleShot(0, this, SLOT(asyncHideInline()));
+
+ // mark that the asynchronous part will reset the model
+ if (!popupVisible())
+ modelActive_ = false;
+}
+
+
+void GuiCompleter::asyncHideInline()
+{
+ if (!popupVisible())
+ setModel(new GuiCompletionModel(this, 0));
+}
+
+
void GuiCompleter::showPopup()
{
Cursor cur = gui_->bufferView().cursor();
}
+void GuiCompleter::hidePopup()
+{
+ Cursor cur = gui_->bufferView().cursor();
+ cur.updateFlags(Update::None);
+
+ hidePopup(cur);
+
+ // redraw if needed
+ if (cur.disp_.update())
+ gui_->bufferView().processUpdateFlags(cur.disp_.update());
+}
+
+
+void GuiCompleter::hideInline()
+{
+ Cursor cur = gui_->bufferView().cursor();
+ cur.updateFlags(Update::None);
+
+ hideInline(cur);
+
+ // redraw if needed
+ if (cur.disp_.update())
+ gui_->bufferView().processUpdateFlags(cur.disp_.update());
+}
+
+
void GuiCompleter::activate()
{
if (!popupVisible() && !inlineVisible())
return;
- // Complete with current selection in the popup.
- QString s = currentCompletion();
- popup()->hide();
- popupActivated(s);
+ popupActivated(currentCompletion());
}
cur.inset().insertCompletion(cur, docstring(), true);
// hide popup and inline completion
- popup()->hide();
- gui_->bufferView().setInlineCompletion(cur, DocIterator(), docstring());
- inlineVisible_ = false;
+ hidePopup(cur);
+ hideInline(cur);
updateVisibility(false, false);
return;
}
}
} else {
// In sorted models, do binary search for s.
- i = 0;
- size_t r = n - 1;
- int c;
- do {
- size_t mid = (r + i) / 2;
+ int l = 0;
+ int r = n - 1;
+ while (r >= l && l < int(n)) {
+ size_t mid = (r + l) / 2;
QString const & mids
= model.data(model.index(mid, 0),
Qt::EditRole).toString();
// left or right?
// FIXME: is this really the same order that the docstring
// from the CompletionList has?
- c = s.compare(mids, Qt::CaseSensitive);
+ int c = s.compare(mids, Qt::CaseSensitive);
if (c == 0) {
- i = mid;
+ l = mid;
+ break;
+ } else if (l == r) {
+ l = n;
break;
} else if (c > 0)
// middle is not far enough
- i = mid + 1;
+ l = mid + 1;
else
// middle is too far
- r = mid;
-
- } while (r - i > 0 && i < n);
+ r = mid - 1;
+ }
- // loop was left with failed comparison?
- // i.e. word was not found.
- if (c != 0)
+ // loop was left without finding anything
+ if (r < l)
i = n;
+ else
+ i = l;
+ LASSERT(i <= n, /**/);
}
// select the first if none was found
docstring GuiCompleter::longestUniqueCompletion() const
{
QAbstractItemModel const & model = *popup()->model();
- QString s = currentCompletion();
size_t n = model.rowCount();
-
+ if (n == 0)
+ return docstring();
+ QString s = model.data(model.index(0, 0), Qt::EditRole).toString();
+
if (modelSorting() == QCompleter::UnsortedModel) {
// For unsorted model we cannot do more than iteration.
// Iterate through the completions and cut off where s differs
docstring prefix = cur.inset().completionPrefix(cur);
docstring postfix = from_utf8(fromqstr(completion.mid(prefix.length())));
cur.inset().insertCompletion(cur, postfix, true);
- updateVisibility(cur, false);
+ hidePopup(cur);
+ hideInline(cur);
if (cur.disp_.update())
gui_->bufferView().processUpdateFlags(cur.disp_.update());
Cursor cur = gui_->bufferView().cursor();
cur.updateFlags(Update::None);
- updateInline(cur, completion);
+ if (inlineVisible())
+ updateInline(cur, completion);
if (cur.disp_.update())
gui_->bufferView().processUpdateFlags(cur.disp_.update());
projects / lyx.git / blobdiff