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  1. 21st June 2008, 17:29 #6
    JimDaniel
    JimDaniel is offline Intermediate user
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    Default Re: Custom Widget - First Steps

    This should get you started:

    Qt Code: 
    1. #include <QtGui/QApplication>
    2. #include "TabWidget.h"
    3.  
    4. int main(int argc, char *argv[])
    5. {
    6. 	QApplication a(argc, argv);
    7. 	TabWidget w;
    8. 	w.show();
    9. 	return a.exec();
    10. }
    11.  
    12. #include <QList>
    13. #include <QWidget>
    14.  
    15. class SubMaster;
    16.  
    17. class TabWidget : public QWidget
    18. {
    19. 	Q_OBJECT
    20.  
    21. public:
    22. 	TabWidget(QWidget * parent = 0);
    23. 	virtual ~TabWidget();
    24.  
    25. signals:
    26. 	void buttonOneClicked(int submaster);
    27. 	void buttonTwoClicked(int submaster);
    28. 	void buttonThreeClicked(int submaster);
    29.  
    30. 	void sliderValueChanged(int submaster, int value);
    31. 	void spinboxValueChanged(int submaster, int value);
    32.  
    33. public slots:
    34. 	void handleSliderValueChange(int submaster);
    35. 	void handleSpinboxValueChange(int submaster);
    36.  
    37. private:
    38. 	QList<SubMaster *> m_submasters;
    39. };
    40.  
    41. #endif // TABWIDGET_H
    42.  
    43. #include <QVBoxLayout>
    44. #include <QSignalMapper>
    45.  
    46. #include "TabWidget.h"
    47. #include "ParentSignals.h"
    48.  
    49. TabWidget::TabWidget(QWidget *parent) : QWidget(parent)
    50. {
    51. 	QVBoxLayout * layout = new QVBoxLayout();
    52.  
    53. 	QSignalMapper * buttonOneMapper = new QSignalMapper(this);
    54. 	QSignalMapper * buttonTwoMapper = new QSignalMapper(this);
    55. 	QSignalMapper * buttonThreeMapper = new QSignalMapper(this);
    56. 	QSignalMapper * sliderMapper = new QSignalMapper(this);
    57. 	QSignalMapper * spinboxMapper = new QSignalMapper(this);
    58.  
    59. 	for(int i = 0; i < 18; ++i)
    60. 	{
    61. 		SubMaster * sub_master = new SubMaster();
    62.  
    63. 		connect(sub_master, SIGNAL(buttonOneClicked()), buttonOneMapper, SLOT(map()));
    64. 		buttonOneMapper->setMapping(sub_master, i);
    65. 		connect(buttonOneMapper, SIGNAL(mapped(int)), this, SIGNAL(buttonOneClicked(int)));
    66.  
    67. 		connect(sub_master, SIGNAL(buttonTwoClicked()), buttonTwoMapper, SLOT(map()));
    68. 		buttonTwoMapper->setMapping(sub_master, i);
    69. 		connect(buttonTwoMapper, SIGNAL(mapped(int)), this, SIGNAL(buttonTwoClicked(int)));
    70.  
    71. 		connect(sub_master, SIGNAL(buttonThreeClicked()), buttonThreeMapper, SLOT(map()));
    72. 		buttonThreeMapper->setMapping(sub_master, i);
    73. 		connect(buttonThreeMapper, SIGNAL(mapped(int)), this, SIGNAL(buttonThreeClicked(int)));
    74.  
    75. 		connect(sub_master, SIGNAL(sliderValueChanged()), sliderMapper, SLOT(map()));
    76. 		sliderMapper->setMapping(sub_master, i);
    77. 		connect(sliderMapper, SIGNAL(mapped(int)), this, SLOT(handleSliderValueChange(int)));
    78.  
    79. 		connect(sub_master, SIGNAL(spinboxValueChanged()), spinboxMapper, SLOT(map()));
    80. 		spinboxMapper->setMapping(sub_master, i);
    81. 		connect(spinboxMapper, SIGNAL(mapped(int)), this, SLOT(handleSpinboxValueChange(int)));
    82.  
    83. 		layout->addWidget(sub_master);
    84.  
    85. 		m_submasters.push_back(sub_master);
    86. 	}
    87.  
    88. 	this->setLayout(layout);
    89. }
    90.  
    91. TabWidget::~TabWidget()
    92. {
    93.  
    94. }
    95.  
    96. void TabWidget::handleSliderValueChange(int submaster)
    97. {
    98. 	int slider_value = m_submasters.at(submaster)->currentSliderValue();
    99. 	emit sliderValueChanged(submaster, slider_value);
    100. }
    101.  
    102. void TabWidget::handleSpinboxValueChange(int submaster)
    103. {
    104. 	int spinbox_value = m_submasters.at(submaster)->currentSpinBoxValue();
    105. 	emit spinboxValueChanged(submaster, spinbox_value);
    106. }
    107.  
    108.  
    109. #ifndef SUBMASTER_H
    110. #define SUBMASTER_H
    111.  
    112. #include <QtGui>
    113. #include <QtCore>
    114.  
    115. class SubMaster : public QWidget
    116. {
    117. 	Q_OBJECT
    118.  
    119. public:
    120. 	SubMaster(QWidget * parent = 0);
    121. 	virtual ~SubMaster();
    122.  
    123. 	int currentSliderValue() { return slider->value(); }
    124. 	int currentSpinBoxValue() { return spin_box->value(); }
    125.  
    126. signals:
    127. 	void buttonOneClicked();
    128. 	void buttonTwoClicked();
    129. 	void buttonThreeClicked();
    130.  
    131. 	void sliderValueChanged();
    132. 	void spinboxValueChanged();
    133.  
    134. private:
    135. 	QPushButton * button_one;
    136. 	QPushButton * button_two;
    137. 	QPushButton * button_three;
    138.  
    139. 	QSlider * slider;
    140. 	QSpinBox * spin_box;
    141. };
    142.  
    143. #endif // SUBMASTER_H
    144.  
    145. #include "SubMaster.h"
    146.  
    147. SubMaster::SubMaster(QWidget * parent) : QWidget(parent)
    148. {
    149. 	button_one = new QPushButton("One");
    150. 	connect(button_one, SIGNAL(clicked()), this, SIGNAL(buttonOneClicked()));
    151.  
    152. 	button_two = new QPushButton("Two");
    153. 	connect(button_two, SIGNAL(clicked()), this, SIGNAL(buttonTwoClicked()));
    154.  
    155. 	button_three = new QPushButton("Three");
    156. 	connect(button_three, SIGNAL(clicked()), this, SIGNAL(buttonThreeClicked()));
    157.  
    158. 	slider = new QSlider();
    159. 	connect(slider, SIGNAL(valueChanged(int)), this, SIGNAL(sliderValueChanged()));
    160.  
    161. 	spin_box = new QSpinBox();
    162. 	connect(spin_box, SIGNAL(valueChanged(int)), this, SIGNAL(spinboxValueChanged()));
    163.  
    164. 	connect(slider, SIGNAL(valueChanged(int)), spin_box, SLOT(setValue(int)));
    165. 	connect(spin_box, SIGNAL(valueChanged(int)), slider, SLOT(setValue(int)));
    166.  
    167. 	QHBoxLayout * layout = new QHBoxLayout();
    168. 	layout->addWidget(button_one);
    169. 	layout->addWidget(button_two);
    170. 	layout->addWidget(button_three);
    171. 	layout->addWidget(slider);
    172. 	layout->addWidget(spin_box);
    173.  
    174. 	this->setLayout(layout);
    175. }
    176.  
    177. SubMaster::~SubMaster()
    178. {
    179. }
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    Last edited by JimDaniel; 21st June 2008 at 17:39.
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