quarkai/plugins/systemmonitor/processlistwidget.cpp

996 lines
35 KiB
C++

/*
* Copyright (C) 2013 ~ 2018 National University of Defense Technology(NUDT) & Tianjin Kylin Ltd.
*
* Authors:
* Kobe Lee xiangli@ubuntukylin.com/kobe24_lixiang@126.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "processlistwidget.h"
#include <QTimer>
#include <QApplication>
#include <QDebug>
#include <QEvent>
#include <QMenu>
#include <QStyleFactory>
#include <QWheelEvent>
#include <QPainter>
#include <QtMath>
#include <QPen>
ProcessListWidget::ProcessListWidget(QList<bool> toBeDisplayedColumns, QWidget *parent) : QWidget(parent)
,m_titlePadding(10)
,m_titleHeight(36)
,m_rowHeight(36)
,m_offSet(0)
,m_origOffset(0)
,m_scrollbarWidth(10)
,m_titleHoverColumn(-1)
,m_titlePressColumn(-1)
,m_mouseAtScrollArea(false)
,m_mouseDragScrollbar(false)
{
this->m_searchFunc = NULL;
this->m_searchText = "";
this->m_lastItem = NULL;
this->m_listItems = new QList<ProcessListItem*>();
this->m_searchedItems = new QList<ProcessListItem*>();
this->m_selectedItems = new QList<ProcessListItem*>();
this->m_sortFuncList = new QList<SortFunction>();
this->m_isSortList = new QList<bool>();
this->m_upArrowNormalPixmap = QPixmap(":/res/arrow_up_normal.png");
this->m_upArrowHoverPixmap = QPixmap(":/res/arrow_up_hover.png");
this->m_upArrowPressPixmap = QPixmap(":/res/arrow_up_press.png");
this->m_downArrowNormalPixmap = QPixmap(":/res/arrow_down_normal.png");
this->m_downArrowHoverPixmap = QPixmap(":/res/arrow_down_hover.png");
this->m_downArrowPressPixmap = QPixmap(":/res/arrow_down_press.png");
this->columnTitles << tr("Process Name") << tr("User") << tr("Status") << tr("CPU") << tr("ID") << tr("Command Line") << tr("Memory") << tr("Priority");
QList<int> widths;
widths << 180 << 80 << 80 << 50 << 50 << -1 << 80 << 80;//-1时让改行填充所有剩余空间
QFont font;
font.setPointSize(9);//需要和填充所有剩余空间的那个的文字字体大小一致
QFontMetrics fm(font);
this->m_columnWidths.clear();
for (int i = 0; i < widths.length(); i++) {
if (widths[i] == -1) {
this->m_columnWidths << widths[i];
} else {//-1时让改行填充所有剩余空间
int maxWidth = fm.width(this->columnTitles[i]) + this->m_titlePadding + m_upArrowNormalPixmap.width() / m_upArrowNormalPixmap.devicePixelRatio() + 2 * 2;
this->m_columnWidths << std::max(widths[i], maxWidth);
}
}
this->m_columnVisibles.clear();
for (int i = 0; i < toBeDisplayedColumns.count(); i++) {
this->m_columnVisibles.append(toBeDisplayedColumns[i]);
}
this->setFocus();
}
ProcessListWidget::~ProcessListWidget()
{
delete this->m_lastItem;
delete this->m_listItems;
delete this->m_searchedItems;
delete this->m_selectedItems;
delete this->m_sortFuncList;
delete this->m_isSortList;
delete this->m_hideScrollbarTimer;
}
void ProcessListWidget::setProcessSortFunctions(QList<SortFunction> *list, int currentSortIndex, bool isSort)
{
this->m_sortFuncList = list;
for (int i = 0; i < this->m_sortFuncList->count(); i++) {
this->m_isSortList->append(false);
}
this->m_currentSortIndex = currentSortIndex;
this->m_isSort = isSort;
}
void ProcessListWidget::setSearchFunction(SearchFunction func)
{
this->m_searchFunc = func;
}
void ProcessListWidget::addItems(QList<ProcessListItem*> items)
{
this->m_listItems->append(items);
QList<ProcessListItem*> s_items = this->getSearchedItems(items);
this->m_searchedItems->append(s_items);
if (this->m_currentSortIndex != -1) {
this->sortItemsByColumn(this->m_currentSortIndex, this->m_isSort);
}
}
void ProcessListWidget::clearItems()
{
qDeleteAll(this->m_listItems->begin(), this->m_listItems->end());
this->m_listItems->clear();
this->m_searchedItems->clear();
}
void ProcessListWidget::addSelectedItems(QList<ProcessListItem*> items, bool recordLastItem)
{
this->m_selectedItems->append(items);
if (recordLastItem && this->m_selectedItems->count() > 0) {
this->m_lastItem = this->m_selectedItems->last();
}
}
void ProcessListWidget::clearSelectedItems(bool clearLast)
{
this->m_selectedItems->clear();
if (clearLast) {
this->m_lastItem = NULL;
}
}
void ProcessListWidget::refreshItems(QList<ProcessListItem*> items)
{
QList<ProcessListItem*> *allItems = new QList<ProcessListItem*>();
ProcessListItem *newLastItem = NULL;
for (ProcessListItem *item:items) {
for (ProcessListItem *selectionItem:*this->m_selectedItems) {
if (item->isSameItem(selectionItem)) {
allItems->append(item);
break;
}
}
}
if (this->m_lastItem != NULL) {
for (ProcessListItem *item:items) {
if (item->isSameItem(this->m_lastItem)) {
newLastItem = item;
break;
}
}
}
clearItems();
this->m_listItems->append(items);
QList<ProcessListItem*> s_items = this->getSearchedItems(items);
this->m_searchedItems->append(s_items);
if (this->m_currentSortIndex != -1) {
this->sortItemsByColumn(this->m_currentSortIndex, this->m_isSort);
}
clearSelectedItems();
addSelectedItems(*allItems, false);
this->m_lastItem = newLastItem;
this->m_offSet = setOffset(this->m_offSet);
repaint();
}
void ProcessListWidget::doSearch(QString text)
{
if (text == "" && this->m_searchText != text) {
this->m_searchText = text;
this->m_searchedItems->clear();
this->m_searchedItems->append(*this->m_listItems);
} else {
this->m_searchText = text;
QList<ProcessListItem*> s_items = this->getSearchedItems(*this->m_listItems);
this->m_searchedItems->clear();
this->m_searchedItems->append(s_items);
}
repaint();
}
void ProcessListWidget::selectTheFirstItem()
{
this->m_origOffset = this->m_offSet;
clearSelectedItems();
QList<ProcessListItem*> items = QList<ProcessListItem*>();
items << this->m_searchedItems->first();
addSelectedItems(items);
this->m_offSet = 0;
repaint();
}
void ProcessListWidget::selectTheLastItem()
{
this->m_origOffset = this->m_offSet;
clearSelectedItems();
QList<ProcessListItem*> items = QList<ProcessListItem*>();
items << this->m_searchedItems->last();
addSelectedItems(items);
this->m_offSet = getBottomOffset();
repaint();
}
void ProcessListWidget::selectThePrevItem(int offset)
{
this->m_origOffset = this->m_offSet;
if (this->m_selectedItems->empty()) {
selectTheFirstItem();
} else {
int firstIndex = this->m_searchedItems->count();
for (ProcessListItem *item:*this->m_selectedItems) {
int index = this->m_searchedItems->indexOf(item);
if (index < firstIndex) {
firstIndex = index;
}
}
if (firstIndex != -1) {
firstIndex = std::max(0, firstIndex - offset);
clearSelectedItems();
QList<ProcessListItem*> items = QList<ProcessListItem*>();
items << (*this->m_searchedItems)[firstIndex];
addSelectedItems(items);
int itemIndex = firstIndex - 1;
int itemOffset = setOffset(itemIndex * this->m_rowHeight + this->m_titleHeight);
if ((this->m_offSet / this->m_rowHeight) > itemIndex) {
this->m_offSet = itemOffset;
}
repaint();
}
}
}
void ProcessListWidget::selectTheNextItem(int offset)
{
this->m_origOffset = this->m_offSet;
if (this->m_selectedItems->empty()) {
selectTheFirstItem();
} else {
int lastIndex = 0;
for (ProcessListItem *item:*this->m_selectedItems) {
int index = this->m_searchedItems->indexOf(item);
if (index > lastIndex) {
lastIndex = index;
}
}
if (lastIndex != -1) {
lastIndex = std::min(this->m_searchedItems->count() - 1, lastIndex + offset);
clearSelectedItems(false);
QList<ProcessListItem*> items = QList<ProcessListItem*>();
items << (*this->m_searchedItems)[lastIndex];
addSelectedItems(items);
int itemIndex = lastIndex + 1;
int itemOffset = setOffset(itemIndex * this->m_rowHeight - rect().height() + this->m_titleHeight);
if (((this->m_offSet + getTheScrollAreaHeight()) / this->m_rowHeight) < itemIndex) {
this->m_offSet = itemOffset;
}
repaint();
}
}
}
void ProcessListWidget::shiftToHomeItem()
{
if (this->m_selectedItems->empty()) {
selectTheFirstItem();
}
else {
int lastSelectionIndex = this->m_searchedItems->indexOf(this->m_lastItem);
shiftToSelectedItems(0, lastSelectionIndex);
this->m_offSet = 0;
repaint();
}
}
void ProcessListWidget::shiftToEndItem()
{
if (this->m_selectedItems->empty()) {
selectTheLastItem();
}
else {
shiftToSelectedItems(this->m_searchedItems->indexOf(this->m_lastItem), this->m_searchedItems->count() - 1);
this->m_offSet = getBottomOffset();
repaint();
}
}
void ProcessListWidget::shiftToPrevItem(int offset)
{
this->m_origOffset = this->m_offSet;
if (this->m_selectedItems->empty()) {
selectTheFirstItem();
}
else {
int firstIndex = this->m_searchedItems->count();
int lastIndex = 0;
for (ProcessListItem *item : *this->m_selectedItems) {
int index = this->m_searchedItems->indexOf(item);
if (index < firstIndex) {
firstIndex = index;
}
if (index > lastIndex) {
lastIndex = index;
}
}
if (firstIndex != -1) {
int lastSelectionIndex = this->m_searchedItems->indexOf(this->m_lastItem);
int selectionStartIndex, selectionEndIndex;
if (lastIndex == lastSelectionIndex) {
selectionStartIndex = std::max(0, firstIndex - offset);
selectionEndIndex = lastSelectionIndex;
} else {
selectionStartIndex = firstIndex;
selectionEndIndex = std::max(0, lastIndex - offset);
}
shiftToSelectedItems(selectionStartIndex, selectionEndIndex);
if (this->m_offSet / this->m_rowHeight >= selectionStartIndex) {
this->m_offSet = setOffset((selectionStartIndex - 1) * this->m_rowHeight + this->m_titleHeight);
}
repaint();
}
}
}
void ProcessListWidget::shiftToNextItem(int offset)
{
this->m_origOffset = this->m_offSet;
if (this->m_selectedItems->empty()) {
selectTheFirstItem();
} else {
int firstIndex = this->m_searchedItems->count();
int lastIndex = 0;
for (ProcessListItem *item:*this->m_selectedItems) {
int index = this->m_searchedItems->indexOf(item);
if (index < firstIndex) {
firstIndex = index;
}
if (index > lastIndex) {
lastIndex = index;
}
}
if (firstIndex != -1) {
int lastSelectionIndex = this->m_searchedItems->indexOf(this->m_lastItem);
int selectionStartIndex, selectionEndIndex;
if (firstIndex == lastSelectionIndex) {
selectionStartIndex = firstIndex;
selectionEndIndex = std::min(this->m_searchedItems->count() - 1, lastIndex + offset);
} else {
selectionStartIndex = std::min(this->m_searchedItems->count() - 1, firstIndex + offset);
selectionEndIndex = lastIndex;
}
shiftToSelectedItems(selectionStartIndex, selectionEndIndex);
if ((this->m_offSet + rect().height()) / this->m_rowHeight <= selectionEndIndex + 1) {
this->m_offSet = setOffset((selectionEndIndex + 1) * this->m_rowHeight + this->m_titleHeight - rect().height());
}
repaint();
}
}
}
void ProcessListWidget::shiftToSelectedItems(int start, int end)
{
clearSelectedItems(false);
QList<ProcessListItem*> items = QList<ProcessListItem*>();
int index = 0;
for (ProcessListItem *item:*this->m_searchedItems) {
if (index >= start && index <= end) {
items << item;
}
index++;
}
addSelectedItems(items, false);
}
void ProcessListWidget::leaveEvent(QEvent * event)
{
hideScrollbar();
QWidget::leaveEvent(event);
}
void ProcessListWidget::hideScrollbar()
{
this->m_mouseAtScrollArea = false;
this->m_origOffset = this->m_offSet;
repaint();
}
void ProcessListWidget::keyPressEvent(QKeyEvent *keyEvent)
{
if (keyEvent->key() == Qt::Key_Up) {
if (keyEvent->modifiers() == Qt::ShiftModifier)
shiftToPrevItem(1);
else
selectThePrevItem(1);
}
else if (keyEvent->key() == Qt::Key_Down) {
if (keyEvent->modifiers() == Qt::ShiftModifier)
shiftToNextItem(1);
else
selectTheNextItem(1);
}
else if (keyEvent->key() == Qt::Key_Home) {
if (keyEvent->modifiers() == Qt::ControlModifier) {
this->m_offSet = 0;
repaint();
}
else if (keyEvent->modifiers() == Qt::ShiftModifier) {
shiftToHomeItem();
}
else {
selectTheFirstItem();
}
} else if (keyEvent->key() == Qt::Key_End) {
if (keyEvent->modifiers() == Qt::ControlModifier) {
this->m_offSet = getBottomOffset();
repaint();
}
else if (keyEvent->modifiers() == Qt::ShiftModifier) {
shiftToEndItem();
}
else {
selectTheLastItem();
}
}
else if (keyEvent->key() == Qt::Key_PageUp) {
if (keyEvent->modifiers() == Qt::ControlModifier) {
this->m_offSet = setOffset(this->m_offSet - getTheScrollAreaHeight());
repaint();
}
else if (keyEvent->modifiers() == Qt::ShiftModifier) {
shiftToPrevItem(getTheScrollAreaHeight() / this->m_rowHeight);
}
else {
selectThePrevItem(getTheScrollAreaHeight() / this->m_rowHeight);
}
}
else if (keyEvent->key() == Qt::Key_PageDown) {
if (keyEvent->modifiers() == Qt::ControlModifier) {
this->m_offSet = setOffset(this->m_offSet + getTheScrollAreaHeight());
repaint();
}
else if (keyEvent->modifiers() == Qt::ShiftModifier) {
shiftToNextItem(getTheScrollAreaHeight() / this->m_rowHeight);
}
else {
selectTheNextItem(getTheScrollAreaHeight() / this->m_rowHeight);
}
}
}
void ProcessListWidget::mouseMoveEvent(QMouseEvent *mouseEvent)
{
if (this->m_mouseDragScrollbar) {
this->m_offSet = setOffset((mouseEvent->y() - getScrollbarHeight() / 2 - this->m_titleHeight) / (getTheScrollAreaHeight()) * this->getItemsTotalHeight());
repaint();
}
else if (mouseAtScrollArea(mouseEvent->x()) != this->m_mouseAtScrollArea) {
this->m_mouseAtScrollArea = mouseAtScrollArea(mouseEvent->x());
repaint();
}
else {
bool isTitleArea = mouseAtTitleArea(mouseEvent->y());
if (isTitleArea) {
int currentHoverIndex = -1;
if (this->m_sortFuncList->count() != 0 && this->m_sortFuncList->count() == this->columnTitles.count() && this->m_isSortList->count() == this->columnTitles.count()) {
QList<int> titleItemsWidths = getTitleItemsWidths();
int counter = 0;
int pos_X = 0;
for (int t_width : titleItemsWidths) {
if (t_width > 0) {
if (mouseEvent->x() > pos_X && mouseEvent->x() < pos_X + t_width) {
currentHoverIndex = counter;
break;
}
pos_X += t_width;
}
counter++;
}
}
if (currentHoverIndex != this->m_titleHoverColumn) {
this->m_titleHoverColumn = currentHoverIndex;
repaint();
}
}
}
}
void ProcessListWidget::mousePressEvent(QMouseEvent *mouseEvent)
{
setFocus();
bool isTitleArea = mouseAtTitleArea(mouseEvent->y());
bool isScrollArea = mouseAtScrollArea(mouseEvent->x());
if (isTitleArea) {//点击列表的标题栏区域
if (mouseEvent->button() == Qt::LeftButton) {
if (this->m_sortFuncList->count() != 0 && this->m_sortFuncList->count() == this->columnTitles.count() && this->m_isSortList->count() == this->columnTitles.count()) {
QList<int> titleItemsWidths = getTitleItemsWidths();
int counter = 0;
int posX = 0;
for (int t_width : titleItemsWidths) {
if (t_width > 0) {
if (mouseEvent->x() > posX && mouseEvent->x() < posX + t_width) {
if (counter != this->m_currentSortIndex) {
(*this->m_isSortList)[counter] = true;
}
else {
(*this->m_isSortList)[counter] = !(*this->m_isSortList)[counter];
}
this->m_currentSortIndex = counter;
this->m_isSort = (*this->m_isSortList)[counter];
emit this->changeSortStatus(this->m_currentSortIndex, this->m_isSort);
this->sortItemsByColumn(counter, (*this->m_isSortList)[counter]);
if (counter != this->m_titlePressColumn) {
this->m_titlePressColumn = counter;
}
repaint();
break;
}
posX += t_width;
}
counter++;
}
}
}
else if (mouseEvent->button() == Qt::RightButton) {
if (m_columnVisibles.count() == this->columnTitles.count()) {
QMenu *menu = new QMenu();
menu->setObjectName("MonitorMenu");
for (int i = 0; i < m_columnVisibles.count(); i++) {
if (i != 0) {//让第一行总是显示,不可以设置显示或者不显示,其他行可以设置
QAction *action = new QAction(menu);
action->setText(this->columnTitles[i]);
action->setCheckable(true);
action->setChecked(m_columnVisibles[i]);
connect(action, &QAction::triggered, this, [this, action, i] {
m_columnVisibles[i] = !m_columnVisibles[i];
emit this->changeColumnVisible(i, m_columnVisibles[i], m_columnVisibles);
repaint();
});
menu->addAction(action);
}
}
menu->exec(this->mapToGlobal(mouseEvent->pos()));
delete menu;
}
}
}
else if (isScrollArea) {//点击滚动条区域
int barHeight = getScrollbarHeight();
int barY = getScrollbarY();
if (mouseEvent->y() > barY && mouseEvent->y() < barY + barHeight) {
this->m_mouseDragScrollbar = true;
}
else {
this->m_offSet = setOffset((mouseEvent->y() - barHeight / 2 - this->m_titleHeight) / (getTheScrollAreaHeight()) * this->getItemsTotalHeight());
repaint();
}
}
else {
int pressedItemIndex = (this->m_offSet + mouseEvent->y() - this->m_titleHeight) / this->m_rowHeight;
if (pressedItemIndex >= this->m_searchedItems->count()) {
clearSelectedItems();
repaint();
} else {
if (mouseEvent->button() == Qt::LeftButton) {
if (pressedItemIndex < this->m_searchedItems->count()) {
if (mouseEvent->modifiers() == Qt::ControlModifier) {
ProcessListItem *item = (*this->m_searchedItems)[pressedItemIndex];
if (this->m_selectedItems->contains(item)) {
this->m_selectedItems->removeOne(item);
} else {
QList<ProcessListItem*> items = QList<ProcessListItem*>();
items << item;
addSelectedItems(items);
}
}
else if ((mouseEvent->modifiers() == Qt::ShiftModifier) && !this->m_selectedItems->empty()) {
int lastSelectionIndex = this->m_searchedItems->indexOf(this->m_lastItem);
int selectionStartIndex = std::min(pressedItemIndex, lastSelectionIndex);
int selectionEndIndex = std::max(pressedItemIndex, lastSelectionIndex);
shiftToSelectedItems(selectionStartIndex, selectionEndIndex);
}
else {
clearSelectedItems();
QList<ProcessListItem*> items = QList<ProcessListItem*>();
items << (*this->m_searchedItems)[pressedItemIndex];
addSelectedItems(items);
}
repaint();
}
} else if (mouseEvent->button() == Qt::RightButton) {
ProcessListItem *pressItem = (*this->m_searchedItems)[pressedItemIndex];
bool pressInSelectionArea = false;
for (ProcessListItem *item : *this->m_selectedItems) {
if (item == pressItem) {
pressInSelectionArea = true;
break;
}
}
if (!pressInSelectionArea && pressedItemIndex < this->m_searchedItems->length()) {
clearSelectedItems();
QList<ProcessListItem*> items = QList<ProcessListItem*>();
items << (*this->m_searchedItems)[pressedItemIndex];
addSelectedItems(items);
repaint();
}
if (this->m_selectedItems->length() > 0) {
emit this->rightMouseClickedItems(this->mapToGlobal(mouseEvent->pos()), *this->m_selectedItems);
}
}
}
}
}
void ProcessListWidget::mouseReleaseEvent(QMouseEvent *)
{
if (this->m_mouseDragScrollbar) {
this->m_mouseDragScrollbar = false;
repaint();
}
else {
if (this->m_titlePressColumn != -1) {
this->m_titlePressColumn = -1;
repaint();
}
}
}
void ProcessListWidget::wheelEvent(QWheelEvent *event)
{
if (event->orientation() == Qt::Vertical) {
this->m_origOffset = this->m_offSet;
qreal scrollStep = event->angleDelta().y() / 100.0;
this->m_offSet = setOffset(this->m_offSet - scrollStep * this->m_rowHeight);
repaint();
}
event->accept();
}
void ProcessListWidget::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing, true);
QList<int> titleItemsWidths = getTitleItemsWidths();
painter.setOpacity(0.05);
int penWidth = 1;
QPainterPath framePath;
framePath.addRoundedRect(QRect(rect().x() + penWidth, rect().y() + penWidth, rect().width() - penWidth * 2, rect().height() - penWidth * 2), 4, 4);//背景弧度
painter.setClipPath(framePath);
//标题的背景
if (this->m_titleHeight > 0) {
QPainterPath titlePath;
titlePath.addRect(QRectF(rect().x(), rect().y(), rect().width(), this->m_titleHeight));
painter.setOpacity(0.02);
painter.fillPath(titlePath, QColor("#ffffff"));
}
int title_Y = 0;
int title_Height = 0;
if (this->m_titleHeight > 0) {
int counter = 0;
int posX = 0;
for (int itemWidth:titleItemsWidths) {
if (itemWidth > 0) {
painter.setOpacity(1);
QFont font = painter.font();
font.setPointSize(10);
painter.setFont(font);
//标题文字
painter.setPen(QPen(QColor("#000000")));
painter.drawText(QRect(posX + this->m_titlePadding, 0, itemWidth, this->m_titleHeight), Qt::AlignVCenter | Qt::AlignLeft, this->columnTitles[counter]);
posX += itemWidth;
if (counter < titleItemsWidths.size() - 1) {//垂直分割线
painter.setOpacity(0.1);
QPainterPath separatorPath;
separatorPath.addRect(QRectF(rect().x() + posX - 1, rect().y() + 5, 1, this->m_titleHeight - 5*2));
painter.fillPath(separatorPath, QColor("#000000"));
}
//标题文字右侧的排序箭头图标
if (this->m_currentSortIndex == counter) {
painter.setOpacity(1);
int arrowX = rect().x() + posX - 2 - m_upArrowNormalPixmap.width() / m_upArrowNormalPixmap.devicePixelRatio();
int arrowY = rect().y() + (this->m_titleHeight - m_downArrowNormalPixmap.height() / m_upArrowNormalPixmap.devicePixelRatio()) / 2;
if (this->m_isSort) {
if (this->m_titlePressColumn == this->m_currentSortIndex) {
painter.drawPixmap(QPoint(arrowX, arrowY), m_downArrowPressPixmap);
} else if (this->m_titleHoverColumn == this->m_currentSortIndex) {
painter.drawPixmap(QPoint(arrowX, arrowY), m_downArrowHoverPixmap);
} else {
painter.drawPixmap(QPoint(arrowX, arrowY), m_downArrowNormalPixmap);
}
} else {
if (this->m_titlePressColumn == this->m_currentSortIndex) {
painter.drawPixmap(QPoint(arrowX, arrowY), m_upArrowPressPixmap);
} else if (this->m_titleHoverColumn == this->m_currentSortIndex) {
painter.drawPixmap(QPoint(arrowX, arrowY), m_upArrowHoverPixmap);
} else {
painter.drawPixmap(QPoint(arrowX, arrowY), m_upArrowNormalPixmap);
}
}
}
}
counter++;
}
title_Y += this->m_titleHeight;
title_Height += this->m_titleHeight;
}
//去掉列表标题栏后的列表显示区域的背景
painter.setOpacity(0.05);
QPainterPath backgroundPath;
backgroundPath.addRect(QRectF(rect().x(), rect().y() + this->m_titleHeight, rect().width(), rect().height() - this->m_titleHeight));
painter.fillPath(backgroundPath, QColor("#ffffff"));
//进程信息
QPainterPath scrollAreaPath;
scrollAreaPath.addRect(QRectF(rect().x(), rect().y() + this->m_titleHeight, rect().width(), getTheScrollAreaHeight()));
int rowCounter = 0;
for (ProcessListItem *item:*this->m_searchedItems) {
if (rowCounter > ((this->m_offSet - this->m_rowHeight) / this->m_rowHeight)) {
QPainterPath itemPath;
itemPath.addRect(QRect(0, title_Y + rowCounter * this->m_rowHeight - this->m_offSet, rect().width(), this->m_rowHeight));
painter.setClipPath((framePath.intersected(scrollAreaPath)).intersected(itemPath));
bool isSelect = this->m_selectedItems->contains(item);
painter.save();
item->drawBackground(QRect(0, title_Y + rowCounter * this->m_rowHeight - this->m_offSet, rect().width(), this->m_rowHeight), &painter, rowCounter, isSelect);
painter.restore();
int columnCounter = 0;
int columnTitleX = 0;
for (int titleItemWidth : titleItemsWidths) {
if (titleItemWidth > 0) {
painter.save();
item->drawForeground(QRect(columnTitleX, title_Y + rowCounter * this->m_rowHeight - this->m_offSet, titleItemWidth, this->m_rowHeight), &painter, columnCounter, rowCounter, isSelect);
painter.restore();
columnTitleX += titleItemWidth;
}
columnCounter++;
}
title_Height += this->m_rowHeight;
if (title_Height > rect().height()) {
break;
}
}
rowCounter++;
}
painter.setClipPath(framePath);
//没有搜索结果时绘制提示文字
if (this->m_searchText != "" && this->m_searchedItems->size() == 0) {
painter.setOpacity(1);
painter.setPen(QPen(QColor("#666666")));
QFont font = painter.font() ;
font.setPointSize(22);
painter.setFont(font);
painter.drawText(QRect(rect().x(), rect().y() + this->m_titleHeight, rect().width(), rect().height() - this->m_titleHeight), Qt::AlignCenter, tr("No search result"));
}
//背景
// QPen framePen;
// framePen.setColor(QColor("#F5F5F5"));
// painter.setPen(framePen);
painter.setOpacity(0.2);
painter.drawPath(framePath);
//垂直滚动条
if (this->m_mouseAtScrollArea) {
paintScrollbar(&painter);
} else if (this->m_origOffset != this->m_offSet) {
paintScrollbar(&painter);
startScrollbarHideTimer();
}
}
void ProcessListWidget::paintScrollbar(QPainter *painter)
{
if (this->getItemsTotalHeight() > getTheScrollAreaHeight()) {
qreal opacitry = 0;
if (this->m_mouseDragScrollbar) {
opacitry = 0.8;
}
else {
if (this->m_mouseAtScrollArea)
opacitry = 0.7;
else
opacitry = 0.5;
}
int barWidth = (this->m_mouseAtScrollArea || this->m_mouseDragScrollbar) ? this->m_scrollbarWidth : 6;
int barY = getScrollbarY();
int barHeight = getScrollbarHeight();
painter->setOpacity(opacitry);
QPainterPath path;
path.addRoundedRect(
QRectF(rect().x() + rect().width() - barWidth - 4,
barY + 2,
barWidth,
barHeight - 2 * 2), 2, 2);
painter->fillPath(path, QColor("#0B95D7"));
QPen pen;
pen.setColor(QColor("#0B95D7"));
pen.setWidth(1);
painter->setOpacity(0);
painter->setPen(pen);
painter->drawPath(path);
}
}
QList<int> ProcessListWidget::getTitleItemsWidths()
{
QList<int> titleItemsWidths;
if (this->m_columnWidths.length() > 0) {
if (this->m_columnWidths.contains(-1)) {
for (int i = 0; i < this->m_columnWidths.count(); i++) {
if (this->m_columnWidths[i] != -1) {
if (m_columnVisibles[i]) {
titleItemsWidths << this->m_columnWidths[i];
} else {
titleItemsWidths << 0;
}
} else {
if (m_columnVisibles[i]) {
int totalWidth = 0;
for (int j = 0; j < this->m_columnWidths.count(); j++) {
if (this->m_columnWidths[j] != -1 && m_columnVisibles[j]) {
totalWidth += this->m_columnWidths[j];
}
}
titleItemsWidths << rect().width() - totalWidth;
}
else {
titleItemsWidths << 0;
}
}
}
} else {
for (int i = 0; i < this->m_columnWidths.count(); i++) {
if (m_columnVisibles[i]) {
titleItemsWidths << this->m_columnWidths[i];
}
else {
titleItemsWidths << 0;
}
}
}
}
else {
titleItemsWidths << rect().width();
}
return titleItemsWidths;
}
bool ProcessListWidget::mouseAtScrollArea(int x)
{
return (x > rect().x() + rect().width() - this->m_scrollbarWidth) && (x < rect().x() + rect().width());
}
bool ProcessListWidget::mouseAtTitleArea(int y)
{
return (y > rect().y() && y < rect().y() + this->m_titleHeight);
}
int ProcessListWidget::setOffset(int offset)
{
return std::max(0, std::min(offset, getBottomOffset()));
}
int ProcessListWidget::getItemsTotalHeight()
{
return m_searchedItems->count() * m_rowHeight;
}
int ProcessListWidget::getTheScrollAreaHeight()
{
return this->rect().height() - this->m_titleHeight;
}
int ProcessListWidget::getScrollbarY()
{
return static_cast<int>((this->m_offSet / (this->getItemsTotalHeight())) * getTheScrollAreaHeight() + this->m_titleHeight);
}
int ProcessListWidget::getScrollbarHeight()
{
return std::max(static_cast<int>(getTheScrollAreaHeight() / (this->getItemsTotalHeight()) * rect().height()), this->m_rowHeight);
}
QList<ProcessListItem*> ProcessListWidget::getSearchedItems(QList<ProcessListItem*> items)
{
if (m_searchText == "" || m_searchFunc == NULL) {
return items;
} else {
QList<ProcessListItem*> *search_items = new QList<ProcessListItem*>();
for (ProcessListItem *item : items) {
if (m_searchFunc(item, m_searchText)) {
search_items->append(item);
}
}
return *search_items;
}
}
int ProcessListWidget::getBottomOffset()
{
int itemsHeight = this->getItemsTotalHeight();
if (itemsHeight > rect().height() - this->m_titleHeight) {
return this->getItemsTotalHeight() - rect().height() + this->m_titleHeight;
} else {
return 0;
}
}
void ProcessListWidget::sortItemsByColumn(int column, bool isSort)
{
if (m_sortFuncList->count() != 0 && m_sortFuncList->count() == columnTitles.count() && m_isSortList->count() == columnTitles.count()) {
qSort(m_searchedItems->begin(), m_searchedItems->end(), [&](const ProcessListItem *item1, const ProcessListItem *item2) {
return (*m_sortFuncList)[column](item1, item2, isSort);
});
}
}
void ProcessListWidget::startScrollbarHideTimer()
{
if (this->m_hideScrollbarTimer) {
this->m_hideScrollbarTimer->stop();
}
this->m_hideScrollbarTimer = new QTimer();
connect(this->m_hideScrollbarTimer, SIGNAL(timeout()), this, SLOT(hideScrollbar()));
this->m_hideScrollbarTimer->start(2000);
}