Реферат Тычинин И. А. Разработка приложения для портативных устройств с использованием qt framework, квалификационная работа на степень бакалавра наук: стр. 56, рис. 6, табл. 1, схем 3, библ. 15 назв., приложений 1

Constellations ver. 0.1

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The cross-platform aplication based on Nokia Qt.
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Writed by Ilya Tychinin.
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Send your questions and spam to "

"elive@mail.ru :)"

" Thanks for the viewing.
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QMessageBox::about(0, "About", translatedTextAboutQt);}

void View::quit(){

this->parentWidget()->close();}

void View::wheelEvent(QWheelEvent *event) {

if(event->delta()>0)

zoomSlider->setValue(zoomSlider->value() + 1);

else

zoomSlider->setValue(zoomSlider->value() - 1); }

void View::mousePressEvent(QMouseEvent *event){

if (event->y()>this->size().height()-10){

rotateSlider->show();

rotateRightIcon->show();

rotateLeftIcon->show();

resetButton->show();

compView->show(); }

else{

rotateSlider->hide();

rotateRightIcon->hide();

rotateLeftIcon->hide();

resetButton->hide();

compView->hide(); }

if (event->x()>this->size().width()-10){

zoomSlider->show();

zoomInIcon->show();

zoomOutIcon->show();}

else{

zoomSlider->hide();

zoomInIcon->hide();

zoomOutIcon->hide();}

if (event->y()<10){

nextItemButton->show();

searchButton->show();

label->show();

menuButton->show();

hourButton->show();}

else{

nextItemButton->hide();

searchButton->hide();

label->hide();

menuButton->hide();

hourButton->hide(); }

update();

QWidget::mousePressEvent(event);}

void View::mouseMoveEvent(QMouseEvent *event){

graphicsView->items().at(1)->setPos(0,(/*graphicsView->height()-20+*/graphicsView->verticalScrollBar()->sliderPosition())/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50)));}

void View::mouseReleaseEvent(QMouseEvent *event)

{}

void View::keyPressEvent(QKeyEvent *event){

switch(event->key()){

case (Qt::Key_Up)||(Qt::Key_5):{

if (rotateSlider->isHidden()){

rotateSlider->show();

rotateRightIcon->show();

rotateLeftIcon->show();

resetButton->show();

zoomSlider->show();

zoomInIcon->show();

zoomOutIcon->show();

hourButton->show();

nextItemButton->show();

searchButton->show();

label->show();

compView->show(); }

else{

rotateSlider->hide();

rotateRightIcon->hide();

rotateLeftIcon->hide();

resetButton->hide();

zoomSlider->hide();

zoomInIcon->hide();

zoomOutIcon->hide();

hourButton->hide();

nextItemButton->hide();

searchButton->hide();

label->hide();

compView->hide(); }

break;}

break;

default:1; }

update();}

bool View::eventFilter(QObject* pobj, QEvent* pe){

if (rotateSlider->value() == 0 && showRule->isChecked()) {

graphicsView->items().at(1)->show();

graphicsView->items().at(50)->show();}

else{

graphicsView->items().at(1)->hide();

graphicsView->items().at(50)->hide();}

qreal hSlidePosR = (graphicsView->horizontalScrollBar()->sliderPosition()+150*graphicsView->width()/191)/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50));

qreal hSlidePosL = (graphicsView->horizontalScrollBar()->sliderPosition()+50*graphicsView->width()/191)/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50));

qreal hSlidePosRR = (graphicsView->horizontalScrollBar()->sliderPosition()+110*graphicsView->width()/191)/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50));

qreal hSlidePosLL = (graphicsView->horizontalScrollBar()->sliderPosition()+80*graphicsView->width()/191)/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50));
qreal vSlidePosU = (graphicsView->verticalScrollBar()->sliderPosition()+150*graphicsView->height()/200)/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50));

qreal vSlidePosD = (graphicsView->verticalScrollBar()->sliderPosition()+50*graphicsView->height()/200)/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50));

qreal vSlidePosUU = (graphicsView->verticalScrollBar()->sliderPosition()+120*graphicsView->height()/200)/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50));

qreal vSlidePosDD = (graphicsView->verticalScrollBar()->sliderPosition()+70*graphicsView->height()/200)/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50));

if (graphicsView->items().at(1)->data(0) == "ruler")

graphicsView->items().at(1)->setPos(0,(graphicsView->verticalScrollBar()->sliderPosition())/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50)));

if (graphicsView->items().at(50)->data(0) == "ruler")

graphicsView->items().at(50)->setPos((graphicsView->horizontalScrollBar()->sliderPosition())/qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50)), 0);

repaint();

for (int i=2; i<50;i++)

if (graphicsView->items().at(i)->data(0) == "ruler")

if (graphicsView->items().at(i)->pos().x()< hSlidePosRR && graphicsView->items().at(i)->pos().x() > hSlidePosLL)

graphicsView->items().at(i)->setOpacity(1);

else

if (graphicsView->items().at(i)->pos().x()< hSlidePosR && graphicsView->items().at(i)->pos().x() > hSlidePosL)

graphicsView->items().at(i)->setOpacity(0.7);

else

graphicsView->items().at(i)->setOpacity(0.3);

for (int i=51; i<75;i++)

if (graphicsView->items().at(i)->data(0) == "ruler")

if (graphicsView->items().at(i)->pos().y()< vSlidePosUU && graphicsView->items().at(i)->pos().y() > vSlidePosDD)

graphicsView->items().at(i)->setOpacity(1);

else

if (graphicsView->items().at(i)->pos().y()< vSlidePosU && graphicsView->items().at(i)->pos().y() > vSlidePosD)

graphicsView->items().at(i)->setOpacity(0.7);

else

graphicsView->items().at(i)->setOpacity(0.3);

if (pe->type() == QEvent::KeyPress) {

if (((QKeyEvent*)pe)->key() == Qt::Key_Up || ((QKeyEvent*)pe)->key() == Qt::Key_5) {

if (rotateSlider->isHidden()){

rotateSlider->show();

rotateRightIcon->show();

rotateLeftIcon->show();

resetButton->show();

zoomSlider->show();

zoomInIcon->show();

zoomOutIcon->show();

nextItemButton->show();

hourButton->show();

searchButton->show();

label->show();

menuButton->show();

compView->show();

menuButton->setFocus(); }

else{

rotateSlider->hide();

rotateRightIcon->hide();

rotateLeftIcon->hide();

resetButton->hide();

zoomSlider->hide();

zoomInIcon->hide();

zoomOutIcon->hide();

hourButton->hide();

nextItemButton->hide();

searchButton->hide();

label->hide();

menuButton->hide();

compView->hide(); }}

return true;

}else

return false;}
Листинг 6

ruler.h

#ifndef RULER_H_

#define RULER_H_

#include

#include
class Ruler : public QGraphicsTextItem

{

public:

Ruler(QString value);
QRectF boundingRect() const;

QPainterPath shape() const;

void paint(QPainter *painter, const QStyleOptionGraphicsItem *item, QWidget *widget);

private:

QString value;

};

#endif
Листинг 7

ruler.cpp

#include "ruler.h"

#include

Ruler::Ruler(QString value){

this->value = value;

setDefaultTextColor(Qt::magenta);}

QRectF Ruler::boundingRect() const{

return QRectF(-100, -100, 1000, 1000);}

QPainterPath Ruler::shape() const{

QPainterPath path;

path.addEllipse(0, 0, 100, 100);

return path;}

void Ruler::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)

{

Q_UNUSED(widget);

painter->setBrush(QBrush(Qt::magenta));

painter->setPen(QPen(Qt::white));

QFont font("Times", 10);

font.setStyleStrategy(QFont::ForceOutline);

painter->scale(1/option->levelOfDetail,1/option->levelOfDetail);

painter->translate(option->levelOfDetail*10,0);

if (option->levelOfDetail>1)

painter->translate(option->levelOfDetail*10,option->levelOfDetail*10);

painter->setFont(font);

painter->drawText(0,20, value);

//update();}
Листинг 8

InputDialog.h

#ifndef _InputDialog_h_

#define _InputDialog_h_

#include

class QLineEdit;

class QLabel;

class QSpinBox;

class InputDialog : public QDialog {

Q_OBJECT

private:

QSpinBox* hourSpinBox;

QSpinBox* gradSpinBox;

public:

InputDialog(QWidget* pwgt = 0);

QString hour() const;

QString grad () const;

};

#endif
Листинг 9

InputDialog.cpp

#include "InputDialog.h"

#include

InputDialog::InputDialog(QWidget* pwgt/*= 0*/)

:QDialog(pwgt, Qt::WindowTitleHint | Qt::WindowSystemMenuHint){

QLabel* hourLabel = new QLabel("&Hour(Ascension):");

QLabel* gradLabel = new QLabel("&Gradus(Declination):");

hourSpinBox = new QSpinBox;

gradSpinBox = new QSpinBox;

hourSpinBox->setRange(0, 23);

gradSpinBox->setRange(-90, 90);

hourLabel->setBuddy(hourSpinBox);

gradLabel->setBuddy(gradSpinBox);

QPushButton* pcmdOk = new QPushButton("&0k");

QPushButton* pcmdCancel = new QPushButton("&Cancel");

connect(pcmdOk, SIGNAL(clicked()), SLOT(accept()));

connect(pcmdCancel, SIGNAL(clicked()), SLOT(reject()));

//Layout setup

QGridLayout* ptopLayout = new QGridLayout;

ptopLayout->addWidget(hourLabel, 0, 0);

ptopLayout->addWidget(gradLabel, 1, 0);

ptopLayout->addWidget(hourSpinBox, 0, 1);

ptopLayout->addWidget(gradSpinBox, 1, 1);

ptopLayout->addWidget(pcmdOk, 2,0);

ptopLayout->addWidget(pcmdCancel, 2, 1);

setLayout(ptopLayout);}

QString InputDialog::hour() const{

return hourSpinBox->text();}

QString InputDialog::grad() const{

return gradSpinBox->text() ;}
Листинг 10

star.h

#ifndef STAR_H

#define STAR_H

#include

#include

class Star : public QGraphicsItem{

public:

Star(QString starData, int dH, int dG);
QRectF boundingRect() const;

QPainterPath shape() const;

void paint(QPainter *painter, const QStyleOptionGraphicsItem *item, QWidget *widget);

protected:

void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);

private:

double x, y;

QColor color;

QList stuff;

QString starData;

int id;

int num;

qint16 raHour;

qint16 raMin;

qint16 raSec;

bool south;

qint16 decGrad;

qint16 decMin;

qint16 decSec;

QString name;

int volume;

};

#endif
Листинг 11

star.cpp

#include "star.h"

#include

Star::Star(QString starData, int dH, int dG){

this->x = 0;

this->y = 0;

this->color = Qt::white;

this->starData = starData;

setZValue(10);

QTextStream stream(&starData);

volume = starData.right(3).toInt();

volume = qAbs(volume);

volume = volume/10;

starData.resize(starData.size()-3);

stream >> id;

stream >> num;

stream >> raHour;

stream >> raMin;

stream >> raSec;

QString strPole;

stream >> strPole;

if(strPole == "+") south = true;

else south = false;

stream >> decGrad;

stream >> decMin;

stream >> decSec;

if (south){

decGrad = -decGrad;

decMin = -decMin;

decSec = -decSec;}

QString name1,name2;

stream >> name1;

stream >> name2;

name = name1 + name2;

if (raHour+dH < 24)

x=(raHour+dH)*3600;

else

x = ((raHour+dH) - 24)*3600;

x+=raMin*60;

x+=raSec;

x=(x*3.14159)/12; // ->> Rad //сдвиг по часам больше 1, п.э. всё ок

y = decGrad*3600;

y+=decMin*60;

y+=decSec;

y=(y*3.14159)/180; // ->> Rad

qreal dGr = dG*62.8318;

if (dGr>=0)

if (y+dGr<90*62.8318)

y=y+dGr;

else

y=(y+dGr)-180*62.8318;

if (dGr<0)

if (y+dGr>-90*62.8318)

y=y+dGr;

else

y=(y+dGr)+180*62.8318;

setPos(x,y);

QString strNme = name.toLower();

QVariant varId = id;

setData(0,varId.toString());

setData(1,strNme);

setData(2,"star");

setFlags(ItemIsSelectable /*| ItemIsMovable*/);

setAcceptsHoverEvents(true);}

QRectF Star::boundingRect() const

{

return QRectF(-40, -40, volume+40, volume+40);}

QPainterPath Star::shape() const

{

QPainterPath path;

path.addEllipse(-20, -20, volume, volume);

return path;}

void Star::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)

{

Q_UNUSED(widget);
QColor fillColor = (option->state & QStyle::State_Selected) ? color.dark(150) : color;

if (option->state & QStyle::State_MouseOver)

fillColor = fillColor.light(125);

QPen oldPen = painter->pen();

QPen pen = oldPen;

int width = 0;

if (option->state & QStyle::State_Selected)

width += 2;

pen.setWidth(width);

QBrush b = painter->brush();

painter->setBrush(QBrush(fillColor.dark(option->state & QStyle::State_Sunken ? 120 : 100)));

painter->drawEllipse(-20, -20, volume, volume);

painter->setBrush(b);

// Draw text

if (option->levelOfDetail >= 1) {

QFont font("Times", 10);

font.setStyleStrategy(QFont::ForceOutline);

painter->setFont(font);

painter->save();

painter->setPen(QColor(Qt::black));

painter->scale(0.35, 0.35);

QPointF xy = mapToScene(QPointF(0,0));

painter->drawText(-45, -25, name);

painter->restore(); }}

void Star::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event){

QVariant yc = y;

QMessageBox::information(0, "Star's Name", starData);}

Листинг 12

constellation.h

#ifndef CONSTELLATION_H_

#define CONSTELLATION_H_

#include

#include
class Constellation : public QGraphicsItem

{

public:

Constellation(QString name, const QColor &color);
QRectF boundingRect() const;

QPainterPath shape() const;

void paint(QPainter *painter, const QStyleOptionGraphicsItem *item, QWidget *widget);

protected:

void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);

private:

int x, y;

QColor color;

QString name;
};

#endif
Листинг 13

constellation.cpp

#include "constellation.h"

#include

Constellation::Constellation(QString name, const QColor &color)

{ this->color = color;

this->name = name;

setZValue(2000);

setData(0,name.toLower());

setData(1,"constellation");

setFlags(ItemIsSelectable /*| ItemIsMovable*/);

setAcceptsHoverEvents(true);}
QRectF Constellation::boundingRect() const

{return QRectF(0, 0, 800, -150);}
QPainterPath Constellation::shape() const

{ QPainterPath path;

path.addRect(0, 0, 800, -100);

return path;}
void Constellation::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)

{ Q_UNUSED(widget);

painter->save();

painter->setBrush(QBrush(QColor(Qt::black)));

painter->setPen(QPen(QColor(Qt::black)));

painter->setOpacity(0.3);

painter->drawEllipse(-160,135,580,-400);

painter->restore();

painter->save();

painter->setBrush(QBrush(QColor(Qt::black)));

painter->setPen(QPen(QColor(Qt::black)));

painter->setOpacity(0.75);

painter->drawEllipse(-70,50,410,-220);

painter->restore();
QFont font("Arial", 10);

font.setStyleStrategy(QFont::ForceOutline);

painter->setFont(font);

painter->save();

painter->setPen(QColor(Qt::white));

painter->scale(12, 12);

painter->drawText(0, 0, name);

painter->restore();}

void Constellation::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event){

QMessageBox::information(0, "Constellation's Name", name);}
Листинг 14

Constellations_win32.pro

TEMPLATE = app

TARGET = Constellations_win32

QT += core \

gui \

opengl

HEADERS += Constellations_win32.loc \

ruler.h \

InputDialog.h \

constellation.h \

mainwindow.h \

view.h \

star.h

SOURCES += Constellations_win32.rss \

Constellations_win32_reg.rss \

ruler.cpp \

InputDialog.cpp \

constellation.cpp \

star.cpp \

main.cpp \

mainwindow.cpp \

view.cpp

FORMS +=

RESOURCES += images.qrc