QT標准對話框

1. //CommonDialog.h
2. #ifndef COMMONDIALOG_H
3. #define COMMONDIALOG_H
4. #include <QDialog>
5. class QPushButton;
6. class QLineEdit;
7. class QFrame;
8. class QGridLayout;
9. class StandardDialogs:public QDialog
10. {
11. Q_OBJECT
13. public:
14. StandardDialogs(QWidget *parent = 0, Qt::WindowFlags f = 0);
15. ~StandardDialogs();
17. public:
18. QGridLayout *layout;
19. QPushButton *filePushButton;
20. QPushButton *colorPushButton;
21. QPushButton *fontPushButton;
22. QLineEdit *fileLineEdit;
23. QLineEdit *fontLineEdit;
24. QFrame *colorFrame;
26. private slots:
27. void slotOpenFileDlg();
28. void slotOpenColorDlg();
29. void slotOpenFontDlg();
30. };
31. #endif // COMMONDIALOG_H

1. //CommonDialog.cpp
2. #include "CommonDialog.h"
3. #include <QtGui>
4. StandardDialogs::StandardDialogs(QWidget *parent, Qt::WindowFlags f):QDialog(parent, f)
5. {
6. setWindowTitle(tr("Standard Dialogs"));
8. layout = new QGridLayout(this);
10. filePushButton = new QPushButton;
11. filePushButton->setText(tr("File Dialog"));
13. colorPushButton = new QPushButton;
14. colorPushButton->setText(tr("Color Dialog"));
16. fontPushButton = new QPushButton;
17. fontPushButton->setText(tr("Font Dialog"));
19. fileLineEdit = new QLineEdit;
21. colorFrame = new QFrame;
22. colorFrame->setFrameShape(QFrame::Box);
23. colorFrame->setAutoFillBackground(true);
25. fontLineEdit = new QLineEdit;
26. fontLineEdit->setText(tr("Hello World"));
28. layout->addWidget(filePushButton, 0, 0);
29. layout->addWidget(fileLineEdit, 0, 1);
30. layout->addWidget(colorPushButton, 1, 0);
31. layout->addWidget(colorFrame, 1, 1);
32. layout->addWidget(fontPushButton, 2, 0);
33. layout->addWidget(fontLineEdit, 2, 1);
34. layout->setMargin(15);
35. layout->setSpacing(10);
37. connect(filePushButton, SIGNAL(clicked()), this, SLOT(slotOpenFileDlg()));
38. connect(colorPushButton, SIGNAL(clicked()), this, SLOT(slotOpenColorDlg()));
39. connect(fontPushButton, SIGNAL(clicked()), this, SLOT(slotOpenFontDlg()));
40. }
42. StandardDialogs::~StandardDialogs()
43. {
44. }
46. void StandardDialogs::slotOpenFileDlg()
47. {
48. QString s = QFileDialog::getOpenFileName(
49. this,
50. "open file dialog",
51. "/",
52. "C++ files(*.cpp);;C files(*.c);;Head files(*.h)");
53. fileLineEdit->setText(s.toAscii());
54. }
56. void StandardDialogs::slotOpenColorDlg()
57. {
58. QColor color = QColorDialog::getColor(Qt::blue);
59. if(color.isValid())
60. {
61. colorFrame->setPalette(QPalette(color));
62. }
63. }
65. void StandardDialogs::slotOpenFontDlg()
66. {
67. bool ok;
68. QFont font = QFontDialog::getFont(&ok);
69. if(ok)
70. {
71. fontLineEdit->setFont(font);
72. }
73. }

1. //main.cpp
3. #include <QApplication>
5. #include "CommonDialog.h"
7. int main(int argc, char *argv[])
9. {
11. QApplication app(argc, argv);
13. StandardDialogs *sd = new StandardDialogs;
15. sd->show();
17. return app.exec();
19. }

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