QT Quick Designer自定义组件是否为空?

QT Quick Designer自定义组件是否为空?,qt,qt-creator,qml,Qt,Qt Creator,Qml,我正在对QT Quick进行一些测试,看看是否可以将其用作旧Ui文件的GUI替代品。我注意到在一些示例中,自定义组件将填充库视图。我设法做到了(显然,它们必须在使用它们的qml文件的子目录中?)。但是,这些组件不会在Qt快速设计窗口中渲染。事实上,没有什么可以抓住或操纵的。运行程序后,它们将正确渲染 有人有解决办法吗?我的消息来源如下 import QtQuick 1.0 import Chips 1.0 Item { width: 100 height: 62 Chi

我正在对QT Quick进行一些测试,看看是否可以将其用作旧Ui文件的GUI替代品。我注意到在一些示例中,自定义组件将填充库视图。我设法做到了(显然,它们必须在使用它们的qml文件的子目录中?)。但是,这些组件不会在Qt快速设计窗口中渲染。事实上,没有什么可以抓住或操纵的。运行程序后,它们将正确渲染

有人有解决办法吗?我的消息来源如下

import QtQuick 1.0
import Chips 1.0

Item {
    width: 100
    height: 62
    Chip
    {

    }
}
chip.cpp

#include "Chip.h"

#include <QtGui>


Chip::Chip(QDeclarativeItem *parent)
    : QDeclarativeItem(parent)
{
    x = 0;
    y = 0;
    color = QColor(0, 200, 0);
    setFlags(ItemIsSelectable | ItemIsMovable);
    setFlag(QGraphicsItem::ItemHasNoContents, false);
    setAcceptsHoverEvents(true);
}


//Chip::Chip(const QColor &color, int x, int y, QDeclarativeItem *parent)
//    : QDeclarativeItem(parent)
//{
//    this->x = x;
//    this->y = y;
//    this->color = color;
//    setZValue((x + y) % 2);

//    setFlags(ItemIsSelectable | ItemIsMovable);
//    setFlag(QGraphicsItem::ItemHasNoContents, false);
// setAcceptsHoverEvents(true);
//}

QRectF Chip::boundingRect() const
{
    return QRectF(0, 0, 110, 70);
}

QPainterPath Chip::shape() const
{
    QPainterPath path;
    path.addRect(14, 14, 82, 42);
    return path;
}

void Chip::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);

    const qreal lod = option->levelOfDetailFromTransform(painter->worldTransform());
    if (lod < 0.2) {
        if (lod < 0.125) {
            painter->fillRect(QRectF(0, 0, 110, 70), fillColor);
            return;
        }

        QBrush b = painter->brush();
        painter->setBrush(fillColor);
        painter->drawRect(13, 13, 97, 57);
        painter->setBrush(b);
        return;
    }

    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->drawRect(QRect(14, 14, 79, 39));
    painter->setBrush(b);

    if (lod >= 1) {
        painter->setPen(QPen(Qt::gray, 1));
        painter->drawLine(15, 54, 94, 54);
        painter->drawLine(94, 53, 94, 15);
        painter->setPen(QPen(Qt::black, 0));
    }

    // Draw text
    if (lod >= 2) {
        QFont font("Times", 10);
        font.setStyleStrategy(QFont::ForceOutline);
        painter->setFont(font);
        painter->save();
        painter->scale(0.1, 0.1);
        painter->drawText(170, 180, QString("Model: VSC-2000 (Very Small Chip) at %1x%2").arg(x).arg(y));
        painter->drawText(170, 200, QString("Serial number: DLWR-WEER-123L-ZZ33-SDSJ"));
        painter->drawText(170, 220, QString("Manufacturer: Chip Manufacturer"));
        painter->restore();
    }

    // Draw lines
    QVarLengthArray<QLineF, 36> lines;
    if (lod >= 0.5) {
        for (int i = 0; i <= 10; i += (lod > 0.5 ? 1 : 2)) {
            lines.append(QLineF(18 + 7 * i, 13, 18 + 7 * i, 5));
            lines.append(QLineF(18 + 7 * i, 54, 18 + 7 * i, 62));
        }
        for (int i = 0; i <= 6; i += (lod > 0.5 ? 1 : 2)) {
            lines.append(QLineF(5, 18 + i * 5, 13, 18 + i * 5));
            lines.append(QLineF(94, 18 + i * 5, 102, 18 + i * 5));
        }
    }
    if (lod >= 0.4) {
        const QLineF lineData[] = {
            QLineF(25, 35, 35, 35),
            QLineF(35, 30, 35, 40),
            QLineF(35, 30, 45, 35),
            QLineF(35, 40, 45, 35),
            QLineF(45, 30, 45, 40),
            QLineF(45, 35, 55, 35)
        };
        lines.append(lineData, 6);
    }
    painter->drawLines(lines.data(), lines.size());

    // Draw red ink
    if (stuff.size() > 1) {
        QPen p = painter->pen();
        painter->setPen(QPen(Qt::red, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
        painter->setBrush(Qt::NoBrush);
        QPainterPath path;
        path.moveTo(stuff.first());
        for (int i = 1; i < stuff.size(); ++i)
            path.lineTo(stuff.at(i));
        painter->drawPath(path);
        painter->setPen(p);
    }
}

void Chip::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
    QGraphicsItem::mousePressEvent(event);
    update();
}

void Chip::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
    if (event->modifiers() & Qt::ShiftModifier) {
        stuff << event->pos();
        update();
        return;
    }
    QGraphicsItem::mouseMoveEvent(event);
}

void Chip::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
    QGraphicsItem::mouseReleaseEvent(event);
    update();
}

QColor Chip::getColor() const
{
    return color;
}

int Chip::getX() const
{
    return x;
}

int Chip::getY() const
{
    return y;
}

void Chip::setColor(const QColor &color)
{
    this->color = color;
}

void Chip::setX(const int &x)
{
    this->x = x;
}

void Chip::setY(const int &y)
{
    this->y = y;
}
#包括“Chip.h”
#包括
Chip::Chip(QdeCrativeItem*父级)
:QDeclarativeItem(父级)
{
x=0;
y=0;
颜色=QColor(0,200,0);
设置标志(ItemIsSelectable | ItemIsMovable);
setFlag(QGraphicsItem::ItemHasNoContents,false);
SetAcceptProvents(真);
}
//Chip::Chip(常量QColor&color、int x、int y、QdeCrativeItem*父项)
//:QDeclarativeItem(父级)
//{
//这个->x=x;
//这->y=y;
//这个->颜色=颜色;
//设定值((x+y)%2);
//设置标志(ItemIsSelectable | ItemIsMovable);
//setFlag(QGraphicsItem::ItemHasNoContents,false);
//SetAcceptProvents(真);
//}
QRectF芯片::boundingRect()常量
{
返回QRectF(0,0,110,70);
}
QPainterPath芯片::shape()常数
{
QPainterPath路径;
addRect路径(14,14,82,42);
返回路径;
}
void Chip::paint(QPainter*painter、const QStyleOptionGraphicsItem*选项、QWidget*小部件)
{
Q_未使用(小部件);
QColor fillColor=(选项->状态和QStyle::状态\选择)?颜色。深(150):颜色;
如果(选项->状态和QStyle::状态\鼠标悬停)
fillColor=fillColor.light(125);
const qreal lod=option->levelOfDetailFromTransform(painter->worldTransform());
如果(lod<0.2){
如果(lod<0.125){
painter->fillRect(QRectF(0,0,110,70),fillColor);
返回;
}
QBrush b=画师->画笔();
画家->挫折(fillColor);
画家->绘图者(13,13,97,57);
画家->挫折(b);
返回;
}
QPen oldPen=画师->画笔();
QPen笔=旧笔;
整数宽度=0;
如果(选项->状态&QStyle::状态_选中)
宽度+=2;
笔设置宽度(宽度);
QBrush b=画师->画笔();
painter->setBrush(QBrush(fillColor.dark(选项->state&QStyle::state_Sunken?120:100));
画师->绘图员(QRect(14,14,79,39));
画家->挫折(b);
如果(lod>=1){
painter->setPen(QPen(Qt::gray,1));
油漆工->拉丝(15,54,94,54);
油漆工->拉丝(94,53,94,15);
painter->setPen(QPen(Qt::黑色,0));
}
//绘制文本
如果(lod>=2){
QFont字体(“时代”,10);
字体.setStyleStrategy(QFont::ForceOutline);
画师->设置字体(字体);
画师->保存();
画师->比例(0.1,0.1);
painter->drawText(170180,QString(“型号:VSC-2000(非常小的芯片),位于%1x%2”).arg(x.arg(y));
油漆工->绘图文本(170200,QString(“序列号:DLWR-WEER-123L-ZZ33-SDSJ”);
画师->绘图文本(170、220、QString(“制造商:芯片制造商”);
画师->还原();
}
//划线
QVarLengthArray线;
如果(lod>=0.5){
对于(int i=0;i 0.5?1:2)){
追加(QLineF(18+7*i,13,18+7*i,5));
追加(QLineF(18+7*i,54,18+7*i,62));
}
对于(int i=0;i 0.5?1:2)){
追加(QLineF(5,18+i*5,13,18+i*5));
追加(QLineF(94,18+i*5102,18+i*5));
}
}
如果(lod>=0.4){
常量QLineF lineData[]={
QLineF(25,35,35,35),
QLineF(35,30,35,40),
QLineF(35,30,45,35),
QLineF(35,40,45,35),
QLineF(45,30,45,40),
QLineF(45,35,55,35)
};
行。追加(行数据,6);
}
画师->绘图线(lines.data(),lines.size());
//画红墨水
if(stuff.size()>1){
QPen p=画师->画笔();
painter->setPen(QPen(Qt::red,1,Qt::SolidLine,Qt::RoundCap,Qt::RoundJoin));
画家->挫折(Qt::NoBrush);
QPainterPath路径;
path.moveTo(stuff.first());
for(int i=1;i绘图路径(路径);
画师->设置笔(p);
}
}
无效芯片::MousePresseEvent(QGraphicsSceneMouseEvent*事件)
{
QGraphicsItem::mousePressEvent(事件);
更新();
}
无效芯片::mouseMoveEvent(QGraphicsSceneMouseEvent*事件)
{
if(事件->修饰符()&Qt::ShiftModifier){
stuff pos();
更新();
返回;
}
QGraphicsItem::mouseMoveEvent(事件);
}
无效芯片::mouseReleaseEvent(QGraphicsSceneMouseEvent*事件)
{
QGraphicsItem::mouseReleaseEvent(事件);
更新();
}
QColor芯片::getColor()常量
{
返回颜色;
}
int Chip::getX()常量
{
返回x;
}
int Chip::getY()常量
{
返回y;
}
无效芯片::设置颜色(常量QColor和颜色)
{
这个->颜色=颜色;
}
无效芯片::setX(常数int&x)
{
这个->x=x;
}
无效芯片::setY(常数int&y)
{
这->y=y;
}
chip.h

#ifndef CHIP_H
#define CHIP_H

#include <QtGui/QColor>
#include <QDeclarativeItem>

class Chip : public QDeclarativeItem
{
    Q_OBJECT
    Q_PROPERTY(int x READ getX WRITE setX)
    Q_PROPERTY(int y READ getY WRITE setY)
    Q_PROPERTY(QColor color READ getColor WRITE setColor)

public:
    Chip(QDeclarativeItem *parent = 0);
    Chip(const QColor &color, int x, int y);

    QRectF boundingRect() const;

    QColor getColor() const;
    int getX() const;
    int getY() const;

    void setColor(const QColor &color);
    void setX(const int &x);
    void setY(const int &y);

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

protected:
    void mousePressEvent(QGraphicsSceneMouseEvent *event);
    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);

private:
    int x, y;
    QColor color;
    QList<QPointF> stuff;
};

#endif
\ifndef芯片
#定义芯片
#包括
#包括
类别芯片:公共QDeclarativeItem
{
Q_对象
Q_属性(int x读getX写setX)
Q_属性(int y READ getY WRITE setY)
Q_属性(QColor颜色读取getColor写入setColor)
公众:
芯片(QDeclarativeItem*parent=0);
芯片(常数QColor&color,int x,int y);
QRectF boundingRect()常量;
QColor getColor()常量;
int getX()常量;
int getY()常量;
void setColor(常量QColor和color);
无效集x(常数int&x);
void setY(const int&y);
qPaint路径形状()常量;
无效油漆(QPaint*油漆工、const QStyleOptionGraphicsItem*项目、QWidget*小部件);
受保护的:
无效鼠标压力事件(QGraphicsSceneMouseEvent*事件);
void mouseMoveEvent(QGraphic