QT Quick Designer自定义组件是否为空?
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
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