toolbar.h

c++的guiQt做的开发

#ifndef __TOOLBAR_H__
#define __TOOLBAR_H__

#include <QToolBar>

class QMainWindow;

namespace gui {

class ToolButton;

/** Minimal allowed size of one ToolButton */
const int MIN_TOOLBUTTON_SIZE=12;
/** Maximal allowed size of one ToolButton */
const int MAX_TOOLBUTTON_SIZE=128;
/** Default size of one ToolButton */
const int DEFAULT_TOOLBUTTON_SIZE=22;

/**
 Class wrapping QToolBar, providing "click forwarding" from TButtons.
 Buttons must be added with addButton() for this to work properly
 \brief Application toolbar
 */
class ToolBar : public QToolBar {
 Q_OBJECT
public:
 ToolBar(const QString &label,QMainWindow *mainWindow);
 void addButton(ToolButton *qb);
signals:
 /**
  Signal emitted to buttons when request to resize them is received
  @param sz new size of toolbar buttons
 */
 void setNewSize(int sz);
 /**
  Signal emitted when clicked on one of toolbar buttons.
  Send pointer to button with it.
  @param id pointer to clicked button
 */
 void itemClicked(ToolButton *id);
 /**
  Send help message when mouse cursor enters/leaves on of toolbar buttons.
  Help message is sent on entering and QString::null on leaving.
  @param message Help message
 */
 void helpText(const QString &message);
public slots:
 void setButtonSizes(int newSize);
 void slotClicked(ToolButton *id);
 void receiveHelpText(const QString &message);
private:
 /** Currently set button size, applied on new items */
 int currentButtonSize;
};

} // namespace gui

#endif