I'm trying to implement pinned menu items for use in a list of recently opened files. (For example, like Microsoft Office 2007 and 2010 do.) I'm almost there, but I haven't been able to properly align the pin images. What I need is something like putting a grid layout on the whole menu, but I don't think I can do that. Any suggestions? I've appended my pinmenu code and a test program.

Qt Code: 
  1. // pinmenu.cpp
  2. #include "pinmenu.h"
  3.  
  4. PinMenu::PinMenu(const QString& title, int id, bool pinstate) : QWidgetAction(NULL)
  5. 	{
  6. 	pinmap = QPixmap(":/pin.png");
  7. 	unpinmap = QPixmap(":/unpin.png");
  8. 	pinWidget = new QWidget();
  9. 	pinLayout = new QHBoxLayout();
  10. 	pinLayout->setMargin(0);
  11. 	pinLayout->setContentsMargins(5, 3, 5, 3);
  12. 	pinTitle = new ClickableLabel(title);
  13.  
  14. // This ugly attempt to line up the pin icons will break if title is too long,
  15. // and it doesn't even succeed in lining up the icons very well.
  16. 	int pixelWidth = pinTitle->fontMetrics().boundingRect(pinTitle->text()).width();
  17. 	pinLayout->setSpacing(200 - pixelWidth);
  18.  
  19. 	pinLayout->addWidget(pinTitle);
  20. 	pinImage = new ClickableLabel();
  21. 	pinLayout->addWidget(pinImage);
  22. 	pinWidget->setLayout(pinLayout);
  23. 	setPinState(pinstate);
  24. 	setDefaultWidget(pinWidget);
  25. 	idno = id;
  26. 	connect(pinTitle, SIGNAL(clicked()), this, SLOT(slot_textClicked()));
  27. 	connect(pinImage, SIGNAL(clicked()), this, SLOT(slot_pinClicked()));
  28. 	}
  29.  
  30. PinMenu::~PinMenu()
  31. 	{
  32. 	delete pinLayout;
  33. 	delete pinWidget;
  34. 	}
  35.  
  36. bool PinMenu::isPinned()
  37. 	{
  38. 	return pinned;
  39. 	}
  40.  
  41. bool PinMenu::togglePin()
  42. 	{
  43. 	setPinState(!pinned);
  44. 	return pinned;
  45. 	}
  46.  
  47. void PinMenu::setPinState(bool pin)
  48. 	{
  49. 	pinned = pin;
  50. 	pinImage->setPixmap(pinned ? pinmap : unpinmap);
  51. 	}
  52.  
  53. void PinMenu::slot_textClicked()
  54. 	{
  55. 	emit signal_textClicked(idno);
  56. 	}
  57.  
  58. void PinMenu::slot_pinClicked()
  59. 	{
  60. 	togglePin();
  61. // Don't emit this signal - it closes the menu
  62. //	emit signal_pinClicked(idno);
  63. 	}
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Qt Code: 
  1. // pinmenu.h
  2. #ifndef PINMENU_H
  3. #define PINMENU_H
  4.  
  5. #include <QWidgetAction>
  6. #include <QHBoxLayout>
  7. #include "clickablelabel.h"
  8.  
  9. class PinMenu : public QWidgetAction
  10. 	{
  11. 	Q_OBJECT
  12. public:
  13. 	PinMenu(const QString& title, int id, bool pinstate);
  14. 	~PinMenu();
  15. 	bool isPinned();
  16. 	bool togglePin();
  17. 	void setPinState(bool pin);
  18.  
  19. private:
  20. 	int idno;
  21. 	bool pinned;
  22. 	ClickableLabel *pinImage;
  23. 	ClickableLabel *pinTitle;
  24. 	QPixmap pinmap;
  25. 	QPixmap unpinmap;
  26. 	QWidget *pinWidget;
  27. 	QHBoxLayout *pinLayout;
  28.  
  29. private slots:
  30. 	void slot_textClicked();
  31. 	void slot_pinClicked();
  32.  
  33. signals:
  34. 	void signal_textClicked(int);
  35. 	void signal_pinClicked(int);
  36. 	};
  37.  
  38. #endif // PINMENU_H
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Qt Code: 
  1. // main.cpp
  2. #include <QtGui/QApplication>
  3. #include "mainwindow.h"
  4.  
  5. int main(int argc, char *argv[])
  6. 	{
  7. 	QApplication a(argc, argv);
  8. 	MainWindow w(0);
  9. 	w.show();
  10. 	return a.exec();
  11. 	}
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Qt Code: 
  1. // mainwindow.cpp
  2. #include "mainwindow.h"
  3. #include "ui_mainwindow.h"
  4. #include "pinmenu.h"
  5.  
  6. #include <QMessageBox>
  7. #include <QHBoxLayout>
  8. #include <QLabel>
  9.  
  10. MainWindow::MainWindow(QWidget *parent)
  11. 	 : QMainWindow(parent), ui(new Ui::MainWindow)
  12. 	{
  13. 	ui->setupUi(this);
  14.  
  15. 	QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
  16. // Avoid warning that open is not used in this test program
  17. //	QAction *open = addMenuItem(fileMenu, tr("&Open"), SLOT(slot_open_clicked()));
  18. 	addMenuItem(fileMenu, tr("&Open"), SLOT(slot_open_clicked()));
  19. 	QMenu *openRecentFilesMenu = fileMenu->addMenu(tr("&Recently used files"));
  20. 	addMenuItem(fileMenu, tr("E&xit"), SLOT(slot_close_clicked()));
  21.  
  22. 	PinMenu *pinMenuAction1 = new PinMenu(tr("Short name"), 1, true);
  23. 	openRecentFilesMenu->addAction(pinMenuAction1);
  24. 	connect(pinMenuAction1, SIGNAL(signal_textClicked(int)), this, SLOT(slot_textClicked(int)));
  25. //	connect(pinMenuAction1, SIGNAL(signal_pinClicked(int)), this, SLOT(slot_iconClicked(int)));
  26.  
  27. 	PinMenu *pinMenuAction2 = new PinMenu(tr("Long name to test alignment"), 2, false);
  28. 	openRecentFilesMenu->addAction(pinMenuAction2);
  29. 	connect(pinMenuAction2, SIGNAL(signal_textClicked(int)), this, SLOT(slot_textClicked(int)));
  30. //	connect(pinMenuAction2, SIGNAL(signal_pinClicked(int)), this, SLOT(slot_iconClicked(int)));
  31. 	fileMenu->setLayout(new QGridLayout());
  32. 	}
  33.  
  34. MainWindow::~MainWindow()
  35. 	{
  36. 	delete ui;
  37. 	}
  38.  
  39. void MainWindow::slot_close_clicked()
  40. 	{
  41. 	close();
  42. 	}
  43.  
  44. void MainWindow::slot_open_clicked()
  45. 	{
  46. // Code here to open file
  47. 	}
  48.  
  49. void MainWindow::slot_textClicked(int id)
  50. 	{
  51. 	QMessageBox::information(this, "Info", tr("Text clicked, id = %1").arg(id));
  52. 	}
  53.  
  54. void MainWindow::slot_iconClicked(int id)
  55. 	{
  56. 	QMessageBox::information(this, "Info", tr("Icon clicked, id = %1").arg(id));
  57. 	}
  58.  
  59. QAction *MainWindow::addMenuItem(QMenu *whichMenu, QString menuText, const char *method)
  60. 	{
  61. 	QAction *openAction = new QAction(menuText, this);
  62. 	connect(openAction, SIGNAL(triggered()), this, method);
  63. 	whichMenu->addAction(openAction);
  64. 	return openAction;
  65. 	}
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Qt Code: 
  1. // mainwindow.h
  2. #ifndef MAINWINDOW_H
  3. #define MAINWINDOW_H
  4.  
  5. #include <QtGui/QMainWindow>
  6.  
  7. namespace Ui
  8. 	{
  9. 	class MainWindow;
  10. 	}
  11.  
  12. class MainWindow : public QMainWindow
  13. 	{
  14. 	Q_OBJECT
  15.  
  16. public:
  17. 	MainWindow(QWidget *parent = 0);
  18. 	~MainWindow();
  19.  
  20. private:
  21. 	QAction *addMenuItem(QMenu *whichMenu, QString menuText, const char *method);
  22.  
  23. private slots:
  24. 	void slot_close_clicked();
  25. 	void slot_open_clicked();
  26. 	void slot_iconClicked(int id);
  27. 	void slot_textClicked(int id);
  28.  
  29. private:
  30. 	Ui::MainWindow *ui;
  31. 	};
  32.  
  33. #endif // MAINWINDOW_H
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Qt Code: 
  1. // clickablelabel.cpp
  2. #include "clickablelabel.h"
  3.  
  4. // This comes from http://qt-project.org/wiki/Make-a-QLabel-Clickable
  5. // License is Creative Commons Attribution-ShareAlike 2.5 Generic
  6.  
  7. ClickableLabel::ClickableLabel(const QString& text, QWidget *parent) :
  8. 	QLabel(parent)
  9. 	{
  10. 	this->setText(text);
  11. 	}
  12.  
  13. ClickableLabel::~ClickableLabel()
  14. 	{
  15. 	}
  16.  
  17. void ClickableLabel::mousePressEvent (QMouseEvent * /* event */)
  18. 	{
  19. 	emit clicked();
  20. 	}
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Qt Code: 
  1. // clickablelabel.h
  2. #ifndef CLICKABLELABEL_H
  3. #define CLICKABLELABEL_H
  4.  
  5. // This comes from http://qt-project.org/wiki/Make-a-QLabel-Clickable
  6. // License is Creative Commons Attribution-ShareAlike 2.5 Generic
  7.  
  8. #include <QLabel>
  9.  
  10. class ClickableLabel : public QLabel
  11. 	{
  12. 	Q_OBJECT
  13.  
  14. public:
  15. 	explicit ClickableLabel(const QString& text ="", QWidget *parent = 0);
  16. 	~ClickableLabel();
  17.  
  18. signals:
  19. 	void clicked();
  20.  
  21. protected:
  22. 	void mousePressEvent(QMouseEvent *event) ;
  23. 	};
  24.  
  25. #endif // CLICKABLELABEL_H
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