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pimpl ButtonController
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@24342 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
André Pönitz
parent
527d3ac174
commit
eee0ebdff2
@ -15,24 +15,132 @@
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#include "qt_helpers.h"
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#include "support/debug.h"
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#include "support/foreach.h"
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#include <QPushButton>
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#include <QLineEdit>
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#include <QLabel>
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#include <QList>
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#include <QValidator>
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namespace lyx {
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namespace frontend {
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ButtonController::ButtonController()
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static void setWidgetEnabled(QWidget * obj, bool enabled)
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{
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if (QLineEdit * le = qobject_cast<QLineEdit*>(obj))
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le->setReadOnly(!enabled);
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else
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obj->setEnabled(enabled);
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obj->setFocusPolicy(enabled ? Qt::StrongFocus : Qt::NoFocus);
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}
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/////////////////////////////////////////////////////////////////////////
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//
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// CheckedLineEdit
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//
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/////////////////////////////////////////////////////////////////////////
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class CheckedLineEdit
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{
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public:
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CheckedLineEdit(QLineEdit * input, QWidget * label = 0);
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bool check() const;
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private:
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// non-owned
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QLineEdit * input_;
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QWidget * label_;
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};
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CheckedLineEdit::CheckedLineEdit(QLineEdit * input, QWidget * label)
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: input_(input), label_(label)
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{}
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bool CheckedLineEdit::check() const
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{
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QValidator const * validator = input_->validator();
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if (!validator)
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return true;
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QString t = input_->text();
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int p = 0;
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bool const valid = validator->validate(t, p) == QValidator::Acceptable;
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// Visual feedback.
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setValid(input_, valid);
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if (label_)
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setValid(label_, valid);
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return valid;
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}
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/////////////////////////////////////////////////////////////////////////
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//
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// ButtonController::Private
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//
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/////////////////////////////////////////////////////////////////////////
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class ButtonController::Private
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{
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public:
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typedef QList<CheckedLineEdit> CheckedWidgetList;
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Private()
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: okay_(0), apply_(0), cancel_(0), restore_(0),
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policy_(ButtonPolicy::IgnorantPolicy)
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{}
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/// \return true if all CheckedWidgets are in a valid state.
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bool checkWidgets() const
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{
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bool valid = true;
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foreach (const CheckedLineEdit & w, checked_widgets_)
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valid &= w.check();
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return valid;
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}
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public:
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CheckedWidgetList checked_widgets_;
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QPushButton * okay_;
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QPushButton * apply_;
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QPushButton * cancel_;
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QPushButton * restore_;
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typedef QList<QWidget *> Widgets;
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Widgets read_only_;
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ButtonPolicy policy_;
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};
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/////////////////////////////////////////////////////////////////////////
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//
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// ButtonController
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//
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/////////////////////////////////////////////////////////////////////////
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ButtonController::ButtonController()
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: d(new Private)
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{}
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ButtonController::~ButtonController()
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{
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delete d;
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}
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void ButtonController::setPolicy(ButtonPolicy::Policy policy)
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{
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policy_.setPolicy(policy);
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d->policy_.setPolicy(policy);
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}
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@ -46,7 +154,7 @@ void ButtonController::input(ButtonPolicy::SMInput in)
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{
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if (ButtonPolicy::SMI_NOOP == in)
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return;
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policy_.input(in);
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d->policy_.input(in);
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refresh();
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}
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@ -85,7 +193,7 @@ bool ButtonController::setReadOnly(bool ro)
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{
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LYXERR(Debug::GUI, "Setting controller ro: " << ro);
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policy_.input(ro ?
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d->policy_.input(ro ?
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ButtonPolicy::SMI_READ_ONLY : ButtonPolicy::SMI_READ_WRITE);
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// refreshReadOnly(); This will enable all widgets in dialogs, no matter if
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// they allowed to be enabled, so when you plan to
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@ -100,106 +208,89 @@ void ButtonController::refresh() const
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{
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LYXERR(Debug::GUI, "Calling BC refresh()");
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bool const all_valid = checkWidgets();
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bool const all_valid = d->checkWidgets();
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if (okay_) {
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if (d->okay_) {
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bool const enabled =
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all_valid && policy().buttonStatus(ButtonPolicy::OKAY);
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okay_->setEnabled(enabled);
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d->okay_->setEnabled(enabled);
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}
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if (apply_) {
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if (d->apply_) {
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bool const enabled =
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all_valid && policy().buttonStatus(ButtonPolicy::APPLY);
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apply_->setEnabled(enabled);
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d->apply_->setEnabled(enabled);
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}
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if (restore_) {
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if (d->restore_) {
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bool const enabled =
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all_valid && policy().buttonStatus(ButtonPolicy::RESTORE);
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restore_->setEnabled(enabled);
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d->restore_->setEnabled(enabled);
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}
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if (cancel_) {
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if (d->cancel_) {
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bool const enabled = policy().buttonStatus(ButtonPolicy::CANCEL);
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if (enabled)
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cancel_->setText(qt_("Cancel"));
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d->cancel_->setText(qt_("Cancel"));
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else
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cancel_->setText(qt_("Close"));
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d->cancel_->setText(qt_("Close"));
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}
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}
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void ButtonController::refreshReadOnly() const
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{
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if (read_only_.empty())
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if (d->read_only_.empty())
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return;
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bool const enable = !policy().isReadOnly();
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Widgets::const_iterator end = read_only_.end();
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Widgets::const_iterator iter = read_only_.begin();
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for (; iter != end; ++iter)
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setWidgetEnabled(*iter, enable);
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}
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void ButtonController::setWidgetEnabled(QWidget * obj, bool enabled) const
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{
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if (QLineEdit * le = qobject_cast<QLineEdit*>(obj))
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le->setReadOnly(!enabled);
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else
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obj->setEnabled(enabled);
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obj->setFocusPolicy(enabled ? Qt::StrongFocus : Qt::NoFocus);
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foreach (QWidget * w, d->read_only_)
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setWidgetEnabled(w, enable);
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}
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void ButtonController::addCheckedLineEdit(QLineEdit * input, QWidget * label)
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{
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checked_widgets.push_back(CheckedLineEdit(input, label));
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d->checked_widgets_.append(CheckedLineEdit(input, label));
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}
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bool ButtonController::checkWidgets() const
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void ButtonController::setOK(QPushButton * obj)
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{
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bool valid = true;
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CheckedWidgetList::const_iterator it = checked_widgets.begin();
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CheckedWidgetList::const_iterator end = checked_widgets.end();
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for (; it != end; ++it)
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valid &= it->check();
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// return valid status after checking ALL widgets
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return valid;
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d->okay_ = obj;
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}
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//////////////////////////////////////////////////////////////
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//
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// CheckedLineEdit
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//
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//////////////////////////////////////////////////////////////
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CheckedLineEdit::CheckedLineEdit(QLineEdit * input, QWidget * label)
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: input_(input), label_(label)
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{}
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bool CheckedLineEdit::check() const
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void ButtonController::setApply(QPushButton * obj)
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{
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QValidator const * validator = input_->validator();
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if (!validator)
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return true;
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d->apply_ = obj;
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}
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QString t = input_->text();
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int p = 0;
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bool const valid = validator->validate(t, p) == QValidator::Acceptable;
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// Visual feedback.
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setValid(input_, valid);
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if (label_)
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setValid(label_, valid);
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void ButtonController::setCancel(QPushButton * obj)
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{
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d->cancel_ = obj;
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}
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return valid;
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void ButtonController::setRestore(QPushButton * obj)
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{
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d->restore_ = obj;
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}
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void ButtonController::addReadOnly(QWidget * obj)
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{
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d->read_only_.push_back(obj);
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}
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ButtonPolicy const & ButtonController::policy() const
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{
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return d->policy_;
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}
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ButtonPolicy & ButtonController::policy()
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{
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return d->policy_;
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}
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} // namespace frontend
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@ -14,8 +14,6 @@
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#include "ButtonPolicy.h"
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#include <list>
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class QWidget;
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class QPushButton;
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class QLineEdit;
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@ -23,18 +21,6 @@ class QLineEdit;
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namespace lyx {
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namespace frontend {
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class CheckedLineEdit
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{
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public:
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CheckedLineEdit(QLineEdit * input, QWidget * label = 0);
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bool check() const;
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private:
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// non-owned
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QLineEdit * input_;
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QWidget * label_;
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};
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/** General purpose button controller for up to four buttons.
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Controls the activation of the OK, Apply and Cancel buttons.
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Actually supports 4 buttons in all and it's up to the user to decide on
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@ -55,14 +41,15 @@ class ButtonController
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{
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public:
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ButtonController();
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~ButtonController();
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//@{
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/** Methods to set and get the ButtonPolicy.
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* \param ptr is owned by the ButtonController.
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*/
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void setPolicy(ButtonPolicy::Policy policy);
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ButtonPolicy const & policy() const { return policy_; }
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ButtonPolicy & policy() { return policy_; }
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ButtonPolicy const & policy() const;
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ButtonPolicy & policy();
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//@}
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///
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@ -92,12 +79,12 @@ public:
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/** Passthrough function -- returns its input value
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* Tell the BC about the read-only status of the underlying buffer.
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*/
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bool setReadOnly(bool = true);
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bool setReadOnly(bool);
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/** \param validity Tell the BC that the data is, or is not, valid.
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* Sets the activation state of the buttons immediately.
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*/
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void setValid(bool = true);
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void setValid(bool);
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//
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// View
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@ -106,45 +93,31 @@ public:
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//@{
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/** Store pointers to these widgets.
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*/
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void setOK(QPushButton * obj) { okay_ = obj; }
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void setApply(QPushButton * obj) { apply_ = obj; }
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void setCancel(QPushButton * obj) { cancel_ = obj; }
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void setRestore(QPushButton * obj) { restore_ = obj; }
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void setOK(QPushButton * obj);
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void setApply(QPushButton * obj);
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void setCancel(QPushButton * obj);
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void setRestore(QPushButton * obj);
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//@}
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/** Add a pointer to the list of widgets whose activation
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* state is dependent upon the read-only status of the
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* underlying buffer.
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*/
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void addReadOnly(QWidget * obj) { read_only_.push_back(obj); }
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void addReadOnly(QWidget * obj);
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/** Add a widget to the list of all widgets whose validity should
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* be checked explicitly when the buttons are refreshed.
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*/
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void addCheckedLineEdit(QLineEdit * input, QWidget * label = 0);
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protected:
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/// \return true if all CheckedWidgets are in a valid state.
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bool checkWidgets() const;
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private:
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typedef std::list<CheckedLineEdit> CheckedWidgetList;
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CheckedWidgetList checked_widgets;
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/// noncopyable
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ButtonController(ButtonController const &);
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void operator=(ButtonController const &);
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private:
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/// Updates the widget sensitivity (enabled/disabled)
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void setWidgetEnabled(QWidget *, bool enabled) const;
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QPushButton * okay_;
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QPushButton * apply_;
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QPushButton * cancel_;
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QPushButton * restore_;
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typedef std::list<QWidget *> Widgets;
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Widgets read_only_;
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private:
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ButtonPolicy policy_;
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/// pimpl
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class Private;
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Private * d;
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};
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} // namespace frontend
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