我用编码方式在qt创建一个窗口,为什么除了窗口的标题显示正常外,其余地方窗口都没有显示?求指教！
代码：#ifndef CALENDER_H
#define CALENDER_H
#include
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QT_BEGIN_NAMESPACE
class QTextBrowser;
QT_END_NAMESPACE
class Calender : public QDialog
{
Q_OBJECT
public:
explicit Calender(QWidget *parent = 0);
~Calender();
QTextCharFormat getBoldFormat() const;
public slots:
void setFontSize(int size);
void setMonth(int month);
void setYear(QDate date);
private:
void insertCalendar();
int fontSize;
QDate selectedDate;
QTextBrowser *editor;
QWidget *centralWidget;
QLabel *dateLabel;
QComboBox *monthCombo;
QDateTimeEdit *yearEdit;
QLabel *fontSizeLabel;
QSpinBox *fontSizeSpinBox;
QHBoxLayout *controlsLayout;
QVBoxLayout *centralLayout;
QTextTable *table;
QTextFrame *frame;
QTextFrameFormat frameFormat;
QTextCharFormat format;
QTextCharFormat boldFormat;
QTextCharFormat highlightedFormat;
QTextTableCell cell;
QTextCursor cellCursor;
QVector<QTextLength> constraints;
QTextTableFormat tableFormat;
QTextCursor cursor;
};
#endif // CALENDER_H
#include "calender.h"
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Calender::Calender(QWidget *parent)
:QDialog(parent)
{
selectedDate = QDate::currentDate();
fontSize = 10;
QWidget *centralWidget = new QWidget;
//! [0]
//! [1]
QLabel *dateLabel = new QLabel(tr("Date:"));
QComboBox *monthCombo = new QComboBox;
for (int month = 1; month <= 12; ++month)
monthCombo->addItem(QDate::longMonthName(month));
QDateTimeEdit *yearEdit = new QDateTimeEdit;
yearEdit->setDisplayFormat("yyyy");
yearEdit->setDateRange(QDate(1753, 1, 1), QDate(8000, 1, 1));
//! [1]
monthCombo->setCurrentIndex(selectedDate.month() - 1);
yearEdit->setDate(selectedDate);
//! [2]
QLabel *fontSizeLabel = new QLabel(tr("Font size:"));
QSpinBox *fontSizeSpinBox = new QSpinBox;
fontSizeSpinBox->setRange(1, 64);
editor = new QTextBrowser;
insertCalendar();
//! [2]
//! [3]
connect(monthCombo, SIGNAL(activated(int)), this, SLOT(setMonth(int)));
connect(yearEdit, SIGNAL(dateChanged(QDate)), this, SLOT(setYear(QDate)));
connect(fontSizeSpinBox, SIGNAL(valueChanged(int)),
this, SLOT(setFontSize(int)));
//! [3]
fontSizeSpinBox->setValue(10);
//! [4]
QHBoxLayout *controlsLayout = new QHBoxLayout;
controlsLayout->addWidget(dateLabel);
controlsLayout->addWidget(monthCombo);
controlsLayout->addWidget(yearEdit);
controlsLayout->addSpacing(24);
controlsLayout->addWidget(fontSizeLabel);
controlsLayout->addWidget(fontSizeSpinBox);
controlsLayout->addStretch(1);
QVBoxLayout *centralLayout = new QVBoxLayout;
centralLayout->addLayout(controlsLayout);
centralLayout->addWidget(editor, 1);
centralWidget->setLayout(centralLayout);
//! [4]
}
//! [5]
void Calender:: insertCalendar()
{
editor->clear();
QTextCursor cursor = editor->textCursor();
cursor.beginEditBlock();
QDate date(selectedDate.year(), selectedDate.month(), 1);
//! [5]
//! [6]
QTextTableFormat tableFormat;
tableFormat.setAlignment(Qt::AlignHCenter);
tableFormat.setBackground(QColor("#e0e0e0"));
tableFormat.setCellPadding(2);
tableFormat.setCellSpacing(4);
//! [6] //! [7]
QVector constraints;
constraints << QTextLength(QTextLength::PercentageLength, 14)
<< QTextLength(QTextLength::PercentageLength, 14)
<< QTextLength(QTextLength::PercentageLength, 14)
<< QTextLength(QTextLength::PercentageLength, 14)
<< QTextLength(QTextLength::PercentageLength, 14)
<< QTextLength(QTextLength::PercentageLength, 14)
<< QTextLength(QTextLength::PercentageLength, 14);
tableFormat.setColumnWidthConstraints(constraints);
//! [7]
//! [8]
QTextTable *table = cursor.insertTable(1, 7, tableFormat);
//! [8]
//! [9]
QTextFrame *frame = cursor.currentFrame();
QTextFrameFormat frameFormat = frame->frameFormat();
frameFormat.setBorder(1);
frame->setFrameFormat(frameFormat);
//! [9]
//! [10]
QTextCharFormat format = cursor.charFormat();
format.setFontPointSize(fontSize);
QTextCharFormat boldFormat = format;
boldFormat.setFontWeight(QFont::Bold);
QTextCharFormat highlightedFormat = boldFormat;
highlightedFormat.setBackground(Qt::yellow);
//! [10]
//! [11]
for (int weekDay = 1; weekDay <= 7; ++weekDay) {
QTextTableCell cell = table->cellAt(0, weekDay-1);
//! [11] //! [12]
QTextCursor cellCursor = cell.firstCursorPosition();
cellCursor.insertText(QString("%1").arg(QDate::longDayName(weekDay)), boldFormat);
}
//! [12]
//! [13]
table->insertRows(table->rows(), 1);
//! [13]
while (date.month() == selectedDate.month()) {
int weekDay = date.dayOfWeek();
QTextTableCell cell = table->cellAt(table->rows()-1, weekDay-1);
QTextCursor cellCursor = cell.firstCursorPosition();
if (date == QDate::currentDate())
cellCursor.insertText(QString("%1").arg(date.day()), highlightedFormat);
else
cellCursor.insertText(QString("%1").arg(date.day()), format);
date = date.addDays(1);
if (weekDay == 7 && date.month() == selectedDate.month())
table->insertRows(table->rows(), 1);
}
cursor.endEditBlock();
//! [14]
setWindowTitle(tr("Calendar for %1 %2"
).arg(QDate::longMonthName(selectedDate.month())
).arg(selectedDate.year()));
}
QTextCharFormat Calender:: getBoldFormat() const
{
return boldFormat;
}
//! [14]
//! [15]
void Calender::setFontSize(int size)
{
fontSize = size;
insertCalendar();
}
//! [15]
//! [16]
void Calender::setMonth(int month)
{
selectedDate = QDate(selectedDate.year(), month + 1, selectedDate.day());
insertCalendar();
}
//! [16]
//! [17]
void Calender::setYear(QDate date)
{
selectedDate = QDate(date.year(), selectedDate.month(), selectedDate.day());
insertCalendar();
}
//! [17]
Calender::~Calender()
{
}
