titlebar.h
| Код |
#ifndef TITLEBAR_H
#define TITLEBAR_H
#include <QToolButton>
#include <QLayout>
#include <QStyle>
#include <QLabel>
#include <QMouseEvent>
#include <QPushButton>
class TitleBar : public QWidget
{
Q_OBJECT
public:
TitleBar(QWidget *parent);
QLabel *label;
public slots:
void showSmall();
void showMaxRestore();
protected:
void mousePressEvent(QMouseEvent *me);
void mouseMoveEvent(QMouseEvent *me);
private:
QPushButton *minimize;
QPushButton *maximize;
QPushButton *close;
QPixmap restorePix, maxPix;
bool maxNormal;
QPoint startPos;
QPoint clickPos;
};
#endif // TITLEBAR_H
|
titlebar.cpp
| Код |
#include "titlebar.h"
TitleBar::TitleBar(QWidget *parent){
// Don't let this widget inherit the parent's background color
setAutoFillBackground(true);
// Use a brush with a Highlight color role to render the background
setBackgroundRole(QPalette::Highlight);
minimize = new QPushButton(this);
maximize = new QPushButton(this);
QLabel *space=new QLabel("");
space->setFixedWidth(5);
close= new QPushButton(this);
// Use the style to set the button pixmaps
QPixmap pix;
pix.load(":/image/close.png");
close->setIcon(pix);
close->setIconSize(QSize(42, 17));
maxPix.load(":/image/maximize.png");
maximize->setIcon(maxPix);
maximize->setIconSize(QSize(24, 17));
pix.load(":/image/minimize.png");
minimize->setIcon(pix);
minimize->setIconSize(QSize(24, 17));
restorePix.load(":/image/restore.png");
minimize->setFixedSize(24, 17);
close->setFixedSize(42, 17);
maximize->setFixedSize(24, 17);
label = new QLabel(this);
label->setText("Window Title");
parent->setWindowTitle("Window Title");
QHBoxLayout *hbox = new QHBoxLayout(this);
hbox->addWidget(label);
hbox->addWidget(minimize);
hbox->addWidget(maximize);
hbox->addWidget(space);
hbox->addWidget(close);
hbox->setContentsMargins(2,2,2,2);
hbox->insertStretch(1, 500);
hbox->setSpacing(0);
setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
maxNormal = false;
connect(close, SIGNAL( clicked() ), parent, SLOT(close() ) );
connect(minimize, SIGNAL( clicked() ), this, SLOT(showSmall() ) );
connect(maximize, SIGNAL( clicked() ), this, SLOT(showMaxRestore() ) );
}
void TitleBar::showSmall(){
parentWidget()->showMinimized();
}
void TitleBar::showMaxRestore(){
if (maxNormal){
parentWidget()->showNormal();
maxNormal = !maxNormal;
maximize->setIcon(maxPix);
}else{
parentWidget()->showMaximized();
maxNormal = !maxNormal;
maximize->setIcon(restorePix);
}
}
void TitleBar::mousePressEvent(QMouseEvent *me){
startPos = me->globalPos();
clickPos = mapToParent(me->pos());
}
void TitleBar::mouseMoveEvent(QMouseEvent *me){
if (maxNormal)
return;
parentWidget()->move(me->globalPos() - clickPos);
}
|
frame.h
| Код |
#ifndef FRAME_H
#define FRAME_H
#include <QFrame>
#include <QPoint>
#include <QMouseEvent>
#include <QMainWindow>
#include "titlebar.h"
class Frame : public QFrame
{
public:
Frame(QMainWindow &win);
QWidget *contentWidget() const;
TitleBar *titleBar() const;
void mousePressEvent(QMouseEvent *e);
void mouseMoveEvent(QMouseEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
TitleBar *m_titleBar;
private:
QWidget *m_content;
QPoint m_old_pos;
bool m_mouse_down;
bool left, right, bottom;
};
#endif // FRAME_H
|
frame.cpp
| Код |
#include "frame.h"
#include "mainwindow.h"
#include "ui_mainwindow.h"
Frame::Frame(QMainWindow &win)
{
m_mouse_down = false;
setFrameShape(Panel);
// Make this a borderless window which can't
// be resized or moved via the window system
setWindowFlags(Qt::FramelessWindowHint);
this->setMouseTracking(true);
m_titleBar = new TitleBar(this);
m_content = win.centralWidget();
QVBoxLayout *vbox = new QVBoxLayout(this);
vbox->addWidget(m_titleBar);
vbox->setMargin(0);
vbox->setSpacing(0);
QVBoxLayout *layout = new QVBoxLayout(this);
win.menuBar()->setFixedHeight(19);
layout->addWidget(win.menuBar());
layout->addWidget(win.centralWidget());
win.statusBar()->setFixedHeight(19);
layout->addWidget(win.statusBar());
layout->setMargin(0);
layout->setSpacing(0);
vbox->addLayout(layout);
}
// Allows you to access the content area of the frame
// where widgets and layouts can be added
QWidget *Frame::contentWidget() const{
return m_content;
}
TitleBar *Frame::titleBar() const{
return m_titleBar;
}
void Frame::mousePressEvent(QMouseEvent *e){
m_old_pos = e->pos();
m_mouse_down = e->button() == Qt::LeftButton;
}
void Frame::mouseMoveEvent(QMouseEvent *e){
int x = e->x();
int y = e->y();
if (m_mouse_down){
int dx = x - m_old_pos.x();
int dy = y - m_old_pos.y();
QRect g = geometry();
if (left)
g.setLeft(g.left() + dx);
if (right)
g.setRight(g.right() + dx);
if (bottom)
g.setBottom(g.bottom() + dy);
setGeometry(g);
m_old_pos = QPoint(!left ? e->x() : m_old_pos.x(), e->y());
}else{
QRect r = rect();
left = qAbs(x - r.left()) <= 5;
right = qAbs(x - r.right()) <= 5;
bottom = qAbs(y - r.bottom()) <= 5;
bool hor = left | right;
if (hor && bottom){
if (left)
setCursor(Qt::SizeBDiagCursor);
else
setCursor(Qt::SizeFDiagCursor);
}else if (hor){
setCursor(Qt::SizeHorCursor);
}else if (bottom){
setCursor(Qt::SizeVerCursor);
}else{
setCursor(Qt::ArrowCursor);
}
}
}
void Frame::mouseReleaseEvent(QMouseEvent *e){
m_mouse_down = false;
}
|
mainwindow.h
| Код |
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QtGui/QMainWindow>
#include "titlebar.h"
#include "frame.h"
#include <QApplication>
#include <QtGui>
#include <QLayout>
#include <QStyle>
#include <QVBoxLayout>
namespace Ui
{
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
|
mainwindow.cpp
| Код |
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent), ui(new Ui::MainWindow)
{
ui->setupUi(this);
}
MainWindow::~MainWindow()
{
delete ui;
}
|
main.cpp
| Код |
#include <QtGui/QApplication>
#include "mainwindow.h"
#include <QLabel>
int main(int argc, char **argv)
{
QApplication a(argc, argv);
MainWindow w;
Frame box(w);
box.move(100,50);
box.m_titleBar->label->setText("My Window Title");
box.resize(w.width(), w.height()+10);
box.show();
return a.exec();
}
|
res.qrc
| Код |
<RCC>
<qresource prefix="/image" >
<file>restore.png</file>
<file>close.png</file>
<file>maximize.png</file>
<file>minimize.png</file>
</qresource>
</RCC>
|
|
)
... Как докопаться до стандартного заголовка, мыслей нет? Меню там изменить, ... Qt что-то такое как-то предоставляет или только через API (кроссплатформенность тогда, так понимаю, идёт лесом)?
... Как запретить у главного окна изменение размеров?