tcStyleToolDialog.cpp
#include "tcStyleToolDialog.h"
#include "ui_tcStyleToolDialog.h"
#include <QDesktopWidget>
#include <QMouseEvent>
#include <QPainter>
#include <qt_windows.h>
#include <windowsx.h>
#include <QDebug>
void TcStyleToolDialog::paintShadow(QWidget* widget, int shadowWidth)
{
QPainterPath path;
path.setFillRule(Qt::WindingFill);
path.addRoundedRect(shadowWidth, shadowWidth, widget->width()-shadowWidth*2, widget->height()-shadowWidth*2,
shadowWidth, shadowWidth);
QPainter painter(widget);
painter.setRenderHint(QPainter::Antialiasing, true);
painter.fillPath(path, QBrush(Qt::white));
QColor color(0, 0, 0, 250);
for(int i=0; i<shadowWidth; ++i)
{
QPainterPath path;
path.setFillRule(Qt::WindingFill);
path.addRoundedRect(shadowWidth -i,
shadowWidth -i,
widget->width()-(shadowWidth -i)*2,
widget->height()-(shadowWidth -i)*2,
shadowWidth, shadowWidth, Qt::AbsoluteSize);
color.setAlpha((shadowWidth*24) / (i+1)); //- qSqrt(i)*50);
painter.setPen(color);
painter.drawPath(path);
}
}
bool TcStyleToolDialog::resizeEvent(const QByteArray&, void* msg, long* result, const QRect& wndRect)
{
bool ret = false;
MSG* message = (MSG*) msg;
switch(message->message)
{
case WM_NCHITTEST:
int xPos = GET_X_LPARAM(message->lParam) - wndRect.x();
int yPos = GET_Y_LPARAM(message->lParam) - wndRect.y();
//if ( childAt(xPos, yPos) == ? ) // ? 爲桌面控件名，即可實現拖動，但無法雙擊縮放
//{
// // 移動
// *result = HTCAPTION;
//}else
//{
// return false;
//}
ret = true;
if ( abs(xPos) <= 5 && abs(yPos) <= 5 )
{
*result = HTTOPLEFT;
}else
if ( abs(xPos-wndRect.width()) <= 5 && abs(yPos) <= 5 )
{
*result = HTTOPRIGHT;
}else
if ( abs(xPos) <= 5 && abs(yPos-wndRect.height()) <= 5 )
{
*result = HTBOTTOMLEFT;
}else
if ( abs(xPos-wndRect.width()) <= 5 && abs(yPos-wndRect.height()) <= 5 )
{
*result = HTBOTTOMRIGHT;
}else
if ( abs(xPos) <= 3 )
{
*result = HTLEFT;
}else
if ( abs(xPos-wndRect.width()) <= 3 )
{
*result = HTRIGHT;
}else
if ( abs(yPos) <= 3 )
{
*result = HTTOP;
}else
if ( abs(yPos-wndRect.height()) <= 3 )
{
*result = HTBOTTOM;
}else
{
ret = false;
}
}
return ret;
}
bool TcStyleToolDialog::sorptionEvent(const QByteArray&, void* msg, long*, int shadowWidth)
{
MSG* message = (MSG*) msg;
if ( message->message == WM_MOVING )
{
LPRECT prc = (LPRECT)message->lParam;
int wndWidth = prc->right - prc->left;
int wndHeight = prc->bottom - prc->top;
const int distance = 16;
static bool sorptionX = false;
static bool sorptionY = false;
static int startX;
static int startY;
if ( abs(prc->left) <= distance )
{
prc->left = -shadowWidth;
prc->right = wndWidth-shadowWidth;
if ( ! sorptionX )
{
sorptionX = true;
startX = QCursor::pos().x();
}
}
if ( abs(prc->right - qApp->desktop()->availableGeometry().right()) <= distance )
{
prc->left = qApp->desktop()->availableGeometry().right() - wndWidth + shadowWidth;
prc->right = qApp->desktop()->availableGeometry().right() + shadowWidth;
if ( ! sorptionX )
{
sorptionX = true;
startX = QCursor::pos().x();
}
}
if ( abs(prc->top) <= distance )
{
prc->top = -shadowWidth;
prc->bottom = wndHeight-shadowWidth;
if ( ! sorptionY )
{
sorptionY = true;
startY = QCursor::pos().y();
}
}
if ( abs(prc->bottom - qApp->desktop()->availableGeometry().bottom()) <= distance )
{
prc->top = qApp->desktop()->availableGeometry().bottom() - wndHeight + shadowWidth;
prc->bottom = qApp->desktop()->availableGeometry().bottom() + shadowWidth;
if ( ! sorptionY )
{
sorptionY = true;
startY = QCursor::pos().y();
}
}
if ( sorptionX )
{
int newX = QCursor::pos().x() - startX;
if ( abs(newX) > distance )
{
prc->left = prc->left + newX - shadowWidth;
prc->right = prc->left + wndWidth;
sorptionX = false;
}
}
if ( sorptionY )
{
int newY = QCursor::pos().y() - startY;
if ( abs(newY) > distance )
{
prc->top = prc->top + newY - shadowWidth;
prc->bottom = prc->top + wndHeight;
sorptionY = false;
}
}
}
return false;
}
TcStyleToolDialog::TcStyleToolDialog(QWidget* parent)
: QDialog(parent)
, ui(new Ui::TcStyleToolDialog)
, m_dialogResize(false)
{
ui->setupUi(this);
setWindowFlags( windowFlags() | Qt::FramelessWindowHint );
ui->DialogWidget->setAttribute(Qt::WA_TranslucentBackground, true);
//QMargins shadowMargins = ui->dialogLayout->contentsMargins();
m_shadowWidth = 0; //(shadowMargins.left()+shadowMargins.top()+shadowMargins.right()+shadowMargins.bottom())/4;
}
TcStyleToolDialog::~TcStyleToolDialog()
{
delete ui;
}
QLayout* TcStyleToolDialog::clientLayout()
{
return ui->clientLayout;
}
void TcStyleToolDialog::setShadowWidth(int shadowWidth)
{
m_shadowWidth = shadowWidth;
setContentsMargins(0,0,0,0);
ui->dialogLayout->setContentsMargins(shadowWidth, shadowWidth, shadowWidth, shadowWidth);
setAttribute(Qt::WA_TranslucentBackground, shadowWidth >0);
}
void TcStyleToolDialog::initClient(QWidget* widget)
{
widget->setParent(ui->DialogWidget);
ui->clientLayout->addWidget(widget);
move((qApp->desktop()->availableGeometry().bottomRight()
- QPoint(geometry().size().width(), geometry().size().height())) /2);
}
void TcStyleToolDialog::paintEvent(QPaintEvent*)
{
if ( m_shadowWidth >0 )
{
paintShadow(this, m_shadowWidth);
}
}
bool TcStyleToolDialog::nativeEvent(const QByteArray& eventType, void* msg, long* result)
{
MSG* message = (MSG*) msg;
switch(message->message)
{
case WM_NCHITTEST:
int xPos = GET_X_LPARAM(message->lParam) - geometry().x();
int yPos = GET_Y_LPARAM(message->lParam) - geometry().y();
if ( isMoveBar(childAt(xPos, yPos)) )
{
*result = HTCAPTION;
return true;
}else
if ( m_dialogResize )
{
return resizeEvent(eventType, msg, result, QRect(geometry().x()+m_shadowWidth,
geometry().y()+m_shadowWidth,
geometry().width()-m_shadowWidth-m_shadowWidth,
geometry().height()-m_shadowWidth-m_shadowWidth));
}
}
return QDialog::nativeEvent(eventType, msg, result);
}
tcStyleToolDialog.h
#pragma once
#ifndef TIANCHI_TCSTYLETOOLDIALOG_H
#define TIANCHI_TCSTYLETOOLDIALOG_H
#include <QDialog>
#include <QPixmap>
#include <QVBoxLayout>
#ifndef TIANCHI_API
#define TIANCHI_API
#endif
namespace Ui {
class TcStyleToolDialog;
}
class TIANCHI_API TcStyleToolDialog : public QDialog
{
typedef QDialog inherited;
Q_OBJECT
public:
static void paintShadow(QWidget* widget, int shadowWidth=3);
static bool resizeEvent(const QByteArray&, void* msg, long* result, const QRect& wndRect);
static bool sorptionEvent(const QByteArray&, void* msg, long*, int shadowWidth=0);
explicit TcStyleToolDialog(QWidget* parent=0);
~TcStyleToolDialog();
protected:
Ui::TcStyleToolDialog* ui;
inline void setDialogResize(bool value) { m_dialogResize = value; }
void setShadowWidth(int shadowWidth);
QLayout* clientLayout();
void initClient(QWidget* widget);
virtual bool isMoveBar(QWidget* moveBar) const { Q_UNUSED(moveBar); return false; }
virtual void paintEvent(QPaintEvent*) override;
virtual bool nativeEvent(const QByteArray& eventType, void* msg, long* result) override;
private:
bool m_dialogResize;
int m_shadowWidth;
};
#define TC_PAINTSHADOW(w) \
virtual void paintEvent(QPaintEvent*) override \
{ TcStyleToolDialog::paintShadow(this, w); }
#define TC_WINDOWRESIZE(widget) \
virtual bool nativeEvent(const QByteArray& eventType, void* msg, long* result) override \
{ return TcStyleToolDialog::resizeEvent(eventType, msg, result, widget->geometry()); }
#endif // TIANCHI_TCSTYLETOOLDIALOG_H
