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Tweak the scale display/entry so that users can enter scales in the form

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x:y


git-svn-id: http://svn.osgeo.org/qgis/trunk@6775 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
g_j_m 2007-03-08 08:45:07 +00:00
parent e89ff94e28
commit 41e63a928f
2 changed files with 30 additions and 14 deletions
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41
src/app/qgisapp.cpp
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@ -63,7 +63,8 @@
#include <QVBoxLayout>
#include <QWhatsThis>
#include <QtGlobal>
#include <QRegExp>
#include <QRegExpValidator>
//
// Mac OS X Includes
// Must include before GEOS 3 due to unqualified use of 'Point'
@ -1021,17 +1022,21 @@ void QgisApp::createStatusBar()
mScaleLabel->setMinimumWidth(10);
mScaleLabel->setMargin(3);
mScaleLabel->setAlignment(Qt::AlignCenter);
// QWhatsThis::add(mScaleLabel, tr("Displays the current map scale"));
// QToolTip::add (mScaleLabel, tr("Current map scale"));
mScaleLabel->setFrameStyle(QFrame::NoFrame);
mScaleLabel->setText(tr("Scale "));
statusBar()->addWidget(mScaleLabel, 0,true);
mScaleEdit = new QLineEdit(QString(),statusBar());
mScaleEdit->setFont(myFont);
mScaleEdit->setMinimumWidth(10);
mScaleEdit->setMaximumWidth(100);
mScaleEdit->setMargin(0);
mScaleEdit->setAlignment(Qt::AlignLeft);
QRegExp validator("\\d+\\.?\\d*:\\d+\\.?\\d*");
mScaleEditValidator = new QRegExpValidator(validator, mScaleEdit);
mScaleEdit->setValidator(mScaleEditValidator);
QWhatsThis::add(mScaleEdit, tr("Displays the current map scale"));
QToolTip::add (mScaleEdit, tr("Current map scale"));
QToolTip::add (mScaleEdit, tr("Current map scale (formatted as x:y)"));
statusBar()->addWidget(mScaleEdit, 0,true);
connect(mScaleEdit, SIGNAL(editingFinished()), this, SLOT(userScale()));
@ -3544,13 +3549,14 @@ void QgisApp::showMouseCoordinate(QgsPoint & p)
void QgisApp::showScale(double theScale)
{
mScaleLabel->setText(tr("Scale 1: "));
if (theScale >= 1.0)
mScaleEdit->setText(QString::number(theScale, 'f', 0));
mScaleEdit->setText("1:" + QString::number(theScale, 'f', 0));
else if (theScale > 0.0)
mScaleEdit->setText(QString::number(1.0/theScale, 'f', 0) + ":1");
else
mScaleEdit->setText(QString::number(theScale));
// Set minimum necessary width
mScaleEdit->setText(tr("Invalid scale"));
// Set minimum necessary width
if ( mScaleEdit->width() > mScaleEdit->minimumWidth() )
{
mScaleEdit->setMinimumWidth(mScaleEdit->width());
@ -3559,13 +3565,20 @@ void QgisApp::showScale(double theScale)
void QgisApp::userScale()
{
bool ok;
double currentScale = mMapCanvas->getScale();
double wantedScale = mScaleEdit->text().toDouble(&ok);
if (ok)
mMapCanvas->zoom(wantedScale/currentScale);
QStringList parts = mScaleEdit->text().split(':');
if (parts.size() == 2)
{
bool leftOk, rightOk;
double leftSide = parts.at(0).toDouble(&leftOk);
double rightSide = parts.at(1).toDouble(&rightOk);
if (leftSide > 0.0 && leftOk && rightOk)
{
double wantedScale = rightSide / leftSide;
mMapCanvas->zoom(wantedScale/currentScale);
}
}
}
void QgisApp::testButton()
{

3
src/app/qgisapp.h
View File

@ -34,6 +34,7 @@ class QKeyEvent;
class QMenu;
class QPixmap;
class QSplashScreen;
class QValidator;
class QgisAppInterface;
class QgsClipboard;
@ -547,6 +548,8 @@ private:
QLabel * mScaleLabel;
//! Widget that will live on the statusbar to display scale value
QLineEdit * mScaleEdit;
//! The validator for the mScaleEdit
QValidator * mScaleEditValidator;
//! Widget that will live in the statusbar to display coords
QLabel * mCoordsLabel;
//! Widget that will live in the statusbar to show progress of operations