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CodeAssist: Limit width of tooltips

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This is a workaround for black tooltips or even crahes when the nvidia
driver is used.

Task-number: QTCREATORBUG-11653
Change-Id: I4ddc09354a9956a55ac6b196a596f3eaeef13670
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
This commit is contained in:
Nikolai Kosjar
2014-03-07 13:55:06 -03:00
parent ed537dabfe
commit 2d70c2e212
1 changed files with 20 additions and 1 deletions
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21
src/plugins/texteditor/codeassist/genericproposalwidget.cpp
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@@ -36,6 +36,7 @@
#include <texteditor/completionsettings.h>
#include <texteditor/texteditorconstants.h>
#include <utils/elidinglabel.h>
#include <utils/faketooltip.h>
#include <utils/hostosinfo.h>
@@ -150,13 +151,16 @@ class GenericProposalInfoFrame : public Utils::FakeToolTip
{
public:
GenericProposalInfoFrame(QWidget *parent = 0)
: Utils::FakeToolTip(parent), m_label(new QLabel(this))
: Utils::FakeToolTip(parent), m_label(new Utils::ElidingLabel(this))
{
QVBoxLayout *layout = new QVBoxLayout(this);
layout->setMargin(0);
layout->setSpacing(0);
layout->addWidget(m_label);
// Limit horizontal width
m_label->setSizePolicy(QSizePolicy::Fixed, m_label->sizePolicy().verticalPolicy());
m_label->setForegroundRole(QPalette::ToolTipText);
m_label->setBackgroundRole(QPalette::ToolTipBase);
}
@@ -166,6 +170,20 @@ public:
m_label->setText(text);
}
// Workaround QTCREATORBUG-11653
void calculateMaximumWidth()
{
const QDesktopWidget *desktopWidget = QApplication::desktop();
const int desktopWidth = desktopWidget->isVirtualDesktop()
? desktopWidget->width()
: desktopWidget->availableGeometry(desktopWidget->primaryScreen()).width();
const QMargins widgetMargins = contentsMargins();
const QMargins layoutMargins = layout()->contentsMargins();
const int margins = widgetMargins.left() + widgetMargins.right()
+ layoutMargins.left() + layoutMargins.right();
m_label->setMaximumWidth(desktopWidth - this->pos().x() - margins);
}
private:
QLabel *m_label;
};
@@ -296,6 +314,7 @@ void GenericProposalWidgetPrivate::maybeShowInfoTip()
m_infoFrame->move(m_completionListView->infoFramePos());
m_infoFrame->setText(infoTip);
m_infoFrame->calculateMaximumWidth();
m_infoFrame->adjustSize();
m_infoFrame->show();
m_infoFrame->raise();