转载地址:https://www.oschina.net/code/snippet_1029551_20242
Qt菜鸟，想用Qt实现一些自己写的小功能，当用到QDockWidget时候，想实现一个自定义的标题栏，上网上狂搜啊，结果都是“大神”说的一些类似"自己画一个就好了"的方式，对于我这样的小白来说，真是要多难有多难，结果根据Qt自带的例子中的一个样例，琢磨着弄出来一个大致的功能，提供思路供跟我一样的小白们参考，目前仅仅是实现了样式上的功能，在各种考虑上都还欠缺（例如标题栏的双击功能就没有实现）。
标签：
Qt
代码片段(8)[全屏查看所有代码]
1. [代码]myDockTitleBar.h
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
#ifndef MYDOCKTITLEBAR_H
#define MYDOCKTITLEBAR_H
#include <QSize>
#include <QDockWidget>
#include <QMouseEvent>
#include <QWidget>
#include <QPainter>
#include <QPaintEvent>
#include "qdebug.h"
#include <QStyle>
class
MyDockTitleBar :
public
QWidget
{
Q_OBJECT
public
:
MyDockTitleBar(QWidget *parent = 0);
QSize sizeHint()
const
{
return
minimumSizeHint(); }
QSize minimumSizeHint()
const
;
protected
:
void
paintEvent(QPaintEvent *event);
void
mousePressEvent(QMouseEvent *event);
public
slots:
void
updateMask();
private
:
QPixmap minPix, closePix, floatPix;
};
#endif // MYDOCKTITLEBAR_H
|
2. [代码]myDockTitleBar.cpp
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
#include "myDockTitleBar.h"
MyDockTitleBar::MyDockTitleBar(QWidget *parent)
: QWidget(parent)
{
minPix = style()->standardPixmap(QStyle::SP_TitleBarMinButton);
closePix = style()->standardPixmap(QStyle::SP_TitleBarCloseButton);
floatPix = style()->standardPixmap(QStyle::SP_TitleBarNormalButton);
}
QSize MyDockTitleBar::minimumSizeHint()
const
{
QDockWidget *dw = qobject_cast<QDockWidget*>(parentWidget());
Q_ASSERT(dw != 0);
QSize result(200, 35);
if
(dw->features() & QDockWidget::DockWidgetVerticalTitleBar)
result.transpose();
return
result;
}
void
MyDockTitleBar::paintEvent(QPaintEvent*)
{
QPainter painter(
this
);
QRect rect =
this
->rect();
QDockWidget *dw = qobject_cast<QDockWidget*>(parentWidget());
Q_ASSERT(dw != 0);
if
(dw->features() & QDockWidget::DockWidgetVerticalTitleBar) {
QSize s = rect.size();
s.transpose();
rect.setSize(s);
painter.translate(rect.left(), rect.top() + rect.width());
painter.rotate(-90);
painter.translate(-rect.left(), -rect.top());
}
painter.fillRect(rect.left(), rect.top(), rect.width(), rect.height(), QColor(tr(
"white"
)));
painter.drawPixmap(rect.topRight() - QPoint(closePix.width() + 10, -10), closePix);
painter.drawPixmap(rect.topRight() - QPoint(minPix.width() + 10 + closePix.width() + 10, -7), minPix);
painter.drawPixmap(rect.topRight() - QPoint(floatPix.width() + 10 + minPix.width() + 10
+ closePix.width() + 10, -10), floatPix);
}
void
MyDockTitleBar::mousePressEvent(QMouseEvent *event)
{
QPoint pos = event->pos();
QRect rect =
this
->rect();
QDockWidget *dw = qobject_cast<QDockWidget*>(parentWidget());
Q_ASSERT(dw != 0);
if
(dw->features() & QDockWidget::DockWidgetVerticalTitleBar) {
QPoint p = pos;
pos.setX(rect.left() + rect.bottom() - p.y());
pos.setY(rect.top() + p.x() - rect.left());
QSize s = rect.size();
s.transpose();
rect.setSize(s);
}
const
int
buttonRight = 10;
const
int
buttonWidth = 20;
int
right = rect.right() - pos.x();
int
button = (right - buttonRight)/buttonWidth;
qDebug() << rect.right() <<
" --- "
<< pos.x() <<
" --- "
<< right <<
" --- "
<< button;
switch
(button) {
case
0:
event->accept();
dw->close();
break
;
case
1:
event->accept();
dw->setFloating(!dw->isFloating());
break
;
case
2: {
event->accept();
QDockWidget::DockWidgetFeatures features = dw->features();
if
(features & QDockWidget::DockWidgetVerticalTitleBar)
features &= ~QDockWidget::DockWidgetVerticalTitleBar;
else
features |= QDockWidget::DockWidgetVerticalTitleBar;
dw->setFeatures(features);
break
;
}
default
:
event->ignore();
break
;
}
}
void
MyDockTitleBar::updateMask()
{
// QDockWidget *dw = qobject_cast<QDockWidget*>(parent());
// Q_ASSERT(dw != 0);
// QRect rect = dw->rect();
// QPixmap bitmap(dw->size());
// {
// QPainter painter(&bitmap);
// ///initialize to transparent
// painter.fillRect(rect, Qt::color0);
// QRect contents = rect;
// contents.setTopLeft(geometry().bottomLeft());
// contents.setRight(geometry().right());
// contents.setBottom(contents.bottom()-y());
// painter.fillRect(contents, Qt::color1);
// //let's pait the titlebar
// QRect titleRect = this->geometry();
// if (dw->features() & QDockWidget::DockWidgetVerticalTitleBar) {
// QSize s = rect.size();
// s.transpose();
// rect.setSize(s);
// QSize s2 = size();
// s2.transpose();
// titleRect.setSize(s2);
// painter.translate(rect.left(), rect.top() + rect.width());
// painter.rotate(-90);
// painter.translate(-rect.left(), -rect.top());
// }
// contents.setTopLeft(titleRect.bottomLeft());
// contents.setRight(titleRect.right());
// contents.setBottom(rect.bottom()-y());
// QRect rect = titleRect;
// painter.drawPixmap(rect.topLeft(), leftPm.mask());
// painter.fillRect(rect.left() + leftPm.width(), rect.top(),
// rect.width() - leftPm.width() - rightPm.width(),
// centerPm.height(), Qt::color1);
// painter.drawPixmap(rect.topRight() - QPoint(rightPm.width() - 1, 0), rightPm.mask());
// painter.fillRect(contents, Qt::color1);
// }
// dw->setMask(bitmap);
}
|
3. [代码]mainwindow.h
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <QWidget>
namespace
Ui {
class
MainWindow;
}
class
MainWindow :
public
QMainWindow
{
Q_OBJECT
public
:
explicit
MainWindow(QWidget *parent = 0);
~MainWindow();
private
:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
|
4. [代码]mainwindow.cpp
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "myDockTitleBar.h"
#include <QDockWidget>
#include <QToolButton>
#include <QPushButton>
#include <QVBoxLayout>
#include <QMdiSubWindow>
#include <QFrame>
#include <QDebug>
#include <QPainter>
#include <QMouseEvent>
#include <QBitmap>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(
new
Ui::MainWindow)
{
ui->setupUi(
this
);
QDockWidget *testDock =
new
QDockWidget(tr(
"Test Dock"
));
testDock->setFeatures(QDockWidget::DockWidgetClosable | QDockWidget::DockWidgetFloatable
| QDockWidget::DockWidgetMovable);
testDock->setMinimumWidth(200);
testDock->setStyleSheet(tr(
"background-color:green;"
));
MyDockTitleBar *titlebar1 =
new
MyDockTitleBar(testDock);
testDock->setTitleBarWidget(titlebar1);
QWidget *testWidget =
new
QWidget;
QVBoxLayout *box =
new
QVBoxLayout;
QPushButton *okButton =
new
QPushButton(tr(
"Ok"
));
okButton->setStyleSheet(tr(
"background-color:white;"
));
box->addWidget(okButton);
testWidget->setLayout(box);
testDock->setWidget(testWidget);
//////////////////////////////////////////////////////////
QDockWidget *testDock2 =
new
QDockWidget(tr(
"Test Dock2"
));
testDock2->setFeatures(QDockWidget::DockWidgetClosable | QDockWidget::DockWidgetFloatable
| QDockWidget::DockWidgetMovable);
testDock2->setMinimumWidth(200);
testDock2->setStyleSheet(tr(
"background-color:orange;"
));
MyDockTitleBar *titlebar2 =
new
MyDockTitleBar(testDock2);
testDock2->setTitleBarWidget(titlebar2);
QWidget *testWidget2 =
new
QWidget;
QVBoxLayout *box2 =
new
QVBoxLayout;
QPushButton *okButton2 =
new
QPushButton(tr(
"Ok"
));
okButton2->setStyleSheet(tr(
"background-color:white;"
));
box2->addWidget(okButton2);
testWidget2->setLayout(box2);
testDock2->setWidget(testWidget2);
//////////////////////////////////////////////////////////
this
->addDockWidget(Qt::LeftDockWidgetArea, testDock);
this
->setTabPosition(Qt::LeftDockWidgetArea, QTabWidget::West);
this
->tabifyDockWidget(testDock, testDock2);
}
MainWindow::~MainWindow()
{
delete
ui;
}
|
5. [代码]main.cpp
|
1
2
3
4
5
6
7
8
9
10
11
12
|
#include "mainwindow.h"
#include <QApplication>
int
main(
int
argc,
char
*argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return
a.exec();
}
|
6. [代码]testDock.pro
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
#-------------------------------------------------
#
# Project created by QtCreator 2013-04-08T12:59:04
#
#-------------------------------------------------
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = testDock
TEMPLATE = app
SOURCES += main.cpp\
mainwindow.cpp \
myDockTitleBar.cpp
HEADERS += mainwindow.h \
myDockTitleBar.h
FORMS += \
mainwindow.ui
|
7. [代码]mainwindow.ui
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
<?xml version=
"1.0"
encoding=
"UTF-8"
?>
<ui version=
"4.0"
>
<
class
>MainWindow</
class
>
<widget
class
=
"QMainWindow"
name=
"MainWindow"
>
<property name=
"geometry"
>
<rect>
<x>0</x>
<y>0</y>
<width>640</width>
<height>480</height>
</rect>
</property>
<property name=
"windowTitle"
>
<string>MainWindow</string>
</property>
<widget
class
=
"QWidget"
name=
"centralwidget"
/>
<widget
class
=
"QMenuBar"
name=
"menubar"
>
<property name=
"geometry"
>
<rect>
<x>0</x>
<y>0</y>
<width>640</width>
<height>19</height>
</rect>
</property>
</widget>
<widget
class
=
"QStatusBar"
name=
"statusbar"
/>
</widget>
<resources/>
<connections/>
</ui>
|