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https://github.com/KDE/latte-dock.git
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519 lines
18 KiB
C++
519 lines
18 KiB
C++
/*
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SPDX-FileCopyrightText: 2019 Michail Vourlakos <mvourlakos@gmail.com>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "generictools.h"
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// Qt
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#include <QApplication>
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#include <QDebug>
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#include <QStyle>
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#include <QTextDocument>
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namespace Latte {
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const int ICONMARGIN = 1;
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const int INDICATORCHANGESLENGTH = 6;
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const int INDICATORCHANGESMARGIN = 5;
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const int MARGIN = 2;
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bool isEnabled(const QStyleOption &option)
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{
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if (option.state & QStyle::State_Enabled) {
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return true;
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}
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return false;
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}
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bool isActive(const QStyleOption &option)
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{
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if (option.state & QStyle::State_Active) {
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return true;
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}
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return false;
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}
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bool isSelected(const QStyleOption &option)
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{
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if (option.state & QStyle::State_Selected) {
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return true;
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}
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return false;
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}
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bool isHovered(const QStyleOption &option)
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{
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if (option.state & QStyle::State_MouseOver) {
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return true;
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}
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return false;
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}
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bool isFocused(const QStyleOption &option)
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{
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if (option.state & QStyle::State_HasFocus) {
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return true;
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}
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return false;
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}
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bool isTextCentered(const QStyleOptionViewItem &option)
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{
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if (option.displayAlignment & Qt::AlignHCenter) {
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return true;
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}
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return false;
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}
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Qt::AlignmentFlag horizontalAlignment(Qt::Alignment alignments)
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{
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if (alignments & Qt::AlignHCenter) {
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return Qt::AlignHCenter;
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} else if (alignments & Qt::AlignRight) {
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return Qt::AlignRight;
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}
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return Qt::AlignLeft;
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}
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QPalette::ColorGroup colorGroup(const QStyleOption &option)
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{
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if (!isEnabled(option)) {
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return QPalette::Disabled;
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}
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if (isActive(option) || isFocused(option)) {
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return QPalette::Active;
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}
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if (!isActive(option) && isSelected(option)) {
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return QPalette::Inactive;
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}
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return QPalette::Normal;
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}
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QStringList subtracted(const QStringList &original, const QStringList ¤t)
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{
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QStringList subtract;
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for(int i=0; i<original.count(); ++i) {
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if (!current.contains(original[i])) {
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subtract << original[i];
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}
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}
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return subtract;
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}
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void drawFormattedText(QPainter *painter, const QStyleOptionViewItem &option, const float textOpacity)
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{
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drawFormattedText(painter, option, option.text, horizontalAlignment(option.displayAlignment), textOpacity);
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}
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void drawFormattedText(QPainter *painter, const QStyleOptionMenuItem &option, const float textOpacity)
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{
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drawFormattedText(painter, option, option.text, Qt::AlignLeft, textOpacity);
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}
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QRect remainedFromFormattedText(const QStyleOption &option, const QString &text, Qt::AlignmentFlag alignment)
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{
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QString css = QString("body {}");
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QTextDocument doc;
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doc.setDefaultStyleSheet(css);
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doc.setHtml("<body>" + text + "</body>");
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//we need an offset to be in the same vertical center of TextEdit
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int textWidth = doc.size().width() + MARGIN;
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Qt::AlignmentFlag curalign = alignment;
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if (qApp->layoutDirection() == Qt::LeftToRight || (curalign == Qt::AlignHCenter)) {
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curalign = alignment;
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} else {
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curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
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}
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if (alignment == Qt::AlignHCenter) {
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return option.rect;
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} else if (curalign == Qt::AlignRight) {
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return QRect(option.rect.x(), option.rect.y(), option.rect.width() - textWidth, option.rect.height());
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} else {
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return QRect(option.rect.x() + textWidth, option.rect.y(), option.rect.width() - textWidth, option.rect.height());
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}
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}
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void drawFormattedText(QPainter *painter, const QStyleOption &option, const QString &text, Qt::AlignmentFlag alignment, const float textOpacity)
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{
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painter->save();
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QPalette::ColorRole applyColor = Latte::isSelected(option) ? QPalette::HighlightedText : QPalette::Text;
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QBrush nBrush = option.palette.brush(Latte::colorGroup(option), applyColor);
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QColor brushColor = nBrush.color();
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brushColor.setAlphaF(textOpacity);
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QString css = QString("body { color : %1;}").arg(brushColor.name(QColor::HexArgb));
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QTextDocument doc;
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doc.setDefaultStyleSheet(css);
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doc.setHtml("<body>" + text + "</body>");
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//we need an offset to be in the same vertical center of TextEdit
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int offsetY = ((option.rect.height() - doc.size().height()) / 2);
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int textWidth = doc.size().width();
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int textY = option.rect.top() + offsetY + 1;
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Qt::AlignmentFlag curalign = alignment;
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if (qApp->layoutDirection() == Qt::LeftToRight || (curalign == Qt::AlignHCenter)) {
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curalign = alignment;
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} else {
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curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
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}
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if (alignment == Qt::AlignHCenter) {
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int textX = qMax(0, (option.rect.width() / 2) - (textWidth/2));
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painter->translate(option.rect.left() + textX, textY);
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} else if (curalign == Qt::AlignRight) {
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painter->translate(qMax(option.rect.left(), option.rect.right() - textWidth), textY);
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} else {
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painter->translate(option.rect.left(), textY);
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}
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QRect clip(0, 0, option.rect.width(), option.rect.height());
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doc.drawContents(painter, clip);
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painter->restore();
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}
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void drawBackground(QPainter *painter, const QStyleOptionViewItem &option)
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{
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QStyleOptionViewItem backOption = option;
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backOption.text = "";
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//! Remove the focus dotted lines
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backOption.state = (option.state & ~QStyle::State_HasFocus);
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option.widget->style()->drawControl(QStyle::CE_ItemViewItem, &backOption, painter);
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}
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void drawBackground(QPainter *painter, const QStyle *style, const QStyleOptionMenuItem &option)
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{
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QStyleOptionMenuItem backOption = option;
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backOption.text = "";
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//! Remove the focus dotted lines
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// iconOption.state = (option.state & ~QStyle::State_HasFocus);
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style->drawControl(QStyle::CE_MenuItem, &backOption, painter);
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}
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QRect remainedFromLayoutIcon(const QStyleOption &option, Qt::AlignmentFlag alignment, int lengthMargin, int thickMargin)
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{
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if (alignment == Qt::AlignHCenter) {
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return option.rect;
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}
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return remainedFromIcon(option, alignment, lengthMargin, thickMargin);
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}
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void drawLayoutIcon(QPainter *painter, const QStyleOption &option, const bool &isBackgroundFile, const QString &iconName, Qt::AlignmentFlag alignment, int lengthMargin, int thickMargin)
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{
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bool active = Latte::isActive(option);
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bool selected = Latte::isSelected(option);
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bool focused = Latte::isFocused(option);
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int lenmargin = (lengthMargin == -1 ? ICONMARGIN + MARGIN : lengthMargin);
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int thickmargin = (thickMargin == -1 ? ICONMARGIN : thickMargin);
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int iconsize = option.rect.height() - 2*thickMargin;
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int total = iconsize + 2*lenmargin;
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Qt::AlignmentFlag curalign = alignment;
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if (qApp->layoutDirection() == Qt::LeftToRight || alignment == Qt::AlignHCenter) {
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curalign = alignment;
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} else {
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curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
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}
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QRect target;
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if (curalign == Qt::AlignLeft) {
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target = QRect(option.rect.x() + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
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} else if (curalign == Qt::AlignRight) {
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target = QRect(option.rect.x() + option.rect.width() - total + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
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} else {
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//! centered
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target = QRect(option.rect.x() + ((option.rect.width() - total)/2) + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
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}
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painter->save();
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painter->setRenderHint(QPainter::Antialiasing, true);
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if (isBackgroundFile) {
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int backImageMargin = 1; //most icon themes provide 1-2px. padding around icons //OLD CALCS: ICONMARGIN; //qMin(target.height()/4, ICONMARGIN+1);
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QRect backTarget(target.x() + backImageMargin, target.y() + backImageMargin, target.width() - 2*backImageMargin, target.height() - 2*backImageMargin);
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QPixmap backImage(iconName);
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backImage = backImage.copy(backTarget);
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QPalette::ColorRole textColorRole = selected ? QPalette::HighlightedText : QPalette::Text;
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QBrush imageBrush(backImage);
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QPen pen; pen.setWidth(1);
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pen.setColor(option.palette.color(Latte::colorGroup(option), textColorRole));
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painter->setBrush(imageBrush);
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painter->setPen(pen);
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painter->drawEllipse(backTarget);
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} else {
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QIcon::Mode mode = ((active && (selected || focused)) ? QIcon::Selected : QIcon::Normal);
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painter->drawPixmap(target, QIcon::fromTheme(iconName).pixmap(target.height(), target.height(), mode));
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}
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painter->restore();
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}
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QRect remainedFromIcon(const QStyleOption &option, Qt::AlignmentFlag alignment, int lengthMargin, int thickMargin)
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{
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int lenmargin = (lengthMargin == -1 ? ICONMARGIN + MARGIN : lengthMargin);
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int thickmargin = (thickMargin == -1 ? ICONMARGIN : thickMargin);
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int iconsize = option.rect.height() - 2*thickMargin;
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int total = iconsize + 2*lenmargin;
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Qt::AlignmentFlag curalign = alignment;
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if (qApp->layoutDirection() == Qt::LeftToRight) {
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curalign = alignment;
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} else {
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curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
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}
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QRect optionRemainedRect = (curalign == Qt::AlignLeft) ? QRect(option.rect.x() + total, option.rect.y(), option.rect.width() - total, option.rect.height()) :
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QRect(option.rect.x(), option.rect.y(), option.rect.width() - total, option.rect.height());
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return optionRemainedRect;
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}
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void drawIcon(QPainter *painter, const QStyleOption &option, const QString &icon, Qt::AlignmentFlag alignment, int lengthMargin, int thickMargin)
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{
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int lenmargin = (lengthMargin == -1 ? ICONMARGIN + MARGIN : lengthMargin);
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int thickmargin = (thickMargin == -1 ? ICONMARGIN : thickMargin);
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int iconsize = option.rect.height() - 2*thickMargin;
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int total = iconsize + 2*lenmargin;
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bool active = Latte::isActive(option);
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bool selected = Latte::isSelected(option);
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bool focused = Latte::isFocused(option);
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QIcon::Mode mode = ((active && (selected || focused)) ? QIcon::Selected : QIcon::Normal);
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Qt::AlignmentFlag curalign = alignment;
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if (qApp->layoutDirection() == Qt::LeftToRight) {
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curalign = alignment;
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} else {
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curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
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}
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QRect target;
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if (curalign == Qt::AlignLeft) {
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target = QRect(option.rect.x() + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
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} else {
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target = QRect(option.rect.x() + option.rect.width() - total + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
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}
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painter->drawPixmap(target, QIcon::fromTheme(icon).pixmap(target.height(), target.height(), mode));
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}
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int primitiveCheckBoxWidth(const QStyleOptionButton &option, const QWidget *widget)
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{
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QStyleOption copt;
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copt.rect = option.rect;
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int w = QApplication::style()->sizeFromContents(QStyle::CT_CheckBox, &copt, QSize(0, option.rect.height()), widget).width();
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w = w > 0 ? w : option.rect.height() - 2*MARGIN;
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return w;
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}
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QRect remainedFromCheckBox(const QStyleOptionButton &option, Qt::AlignmentFlag alignment, const QWidget *widget)
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{
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int length = primitiveCheckBoxWidth(option, widget) - MARGIN;
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Qt::AlignmentFlag curalign = alignment;
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if (qApp->layoutDirection() == Qt::LeftToRight) {
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curalign = alignment;
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} else {
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curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
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}
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QRect optionRemainedRect = (curalign == Qt::AlignLeft) ? QRect(option.rect.x() + length, option.rect.y(), option.rect.width() - length, option.rect.height()) :
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QRect(option.rect.x(), option.rect.y(), option.rect.width() - length, option.rect.height());
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return optionRemainedRect;
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}
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void drawCheckBox(QPainter *painter, const QStyleOptionButton &option, Qt::AlignmentFlag alignment, const QWidget *widget)
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{
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int length = primitiveCheckBoxWidth(option, widget) - MARGIN;
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QStyleOptionButton optionbtn = option;
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Qt::AlignmentFlag curalign = alignment;
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if (qApp->layoutDirection() == Qt::LeftToRight) {
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curalign = alignment;
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} else {
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curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
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}
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QRect changesrect = (curalign == Qt::AlignLeft) ? QRect(option.rect.x() + MARGIN, option.rect.y(), length - MARGIN, option.rect.height()) :
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QRect(option.rect.x() + option.rect.width() - length, option.rect.y(), length - MARGIN, option.rect.height());
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optionbtn.rect = changesrect;
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QApplication::style()->drawControl(QStyle::CE_CheckBox, &optionbtn, painter, widget);
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}
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QRect remainedFromChangesIndicator(const QStyleOptionViewItem &option)
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{
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int tsize{INDICATORCHANGESLENGTH + INDICATORCHANGESMARGIN*2};
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QRect optionRemainedRect = (qApp->layoutDirection() == Qt::RightToLeft) ? QRect(option.rect.x() + tsize, option.rect.y(), option.rect.width() - tsize, option.rect.height()) :
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QRect(option.rect.x(), option.rect.y(), option.rect.width() - tsize, option.rect.height());
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return optionRemainedRect;
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}
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void drawChangesIndicator(QPainter *painter, const QStyleOptionViewItem &option)
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{
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//! draw changes circle indicator
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int csize{INDICATORCHANGESLENGTH};
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int tsize{INDICATORCHANGESLENGTH + INDICATORCHANGESMARGIN*2};
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painter->save();
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QRect changesRect = (qApp->layoutDirection() == Qt::RightToLeft) ? QRect(option.rect.x() + INDICATORCHANGESMARGIN, option.rect.y() + option.rect.height()/2 - csize/2, csize, csize) :
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QRect(option.rect.x() + option.rect.width() - csize - INDICATORCHANGESMARGIN, option.rect.y() + option.rect.height()/2 - csize/2, csize, csize);
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QColor plasmaOrange(246, 116, 0); //orangish color used from plasma systemsettings #f67400
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QBrush backBrush(plasmaOrange);
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QPen pen; pen.setWidth(1);
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pen.setColor(plasmaOrange);
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painter->setBrush(backBrush);
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painter->setPen(pen);
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painter->drawEllipse(changesRect);
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painter->restore();
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}
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int screenMaxLength(const QStyleOption &option, const int &maxIconSize)
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{
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int icon_length = maxIconSize >= 0 ? qMin(option.rect.height(), maxIconSize) : option.rect.height();
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int scr_maxlength = icon_length * 1.7;
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//! provide odd screen_maxlength
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if (scr_maxlength % 2 == 0) {
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scr_maxlength--;
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}
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return scr_maxlength;
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}
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QRect remainedFromScreenDrawing(const QStyleOption &option, const int &maxIconSize)
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{
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int total_length = screenMaxLength(option, maxIconSize) + MARGIN * 2 + 1;
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QRect optionRemainedRect = (qApp->layoutDirection() == Qt::RightToLeft) ? QRect(option.rect.x(), option.rect.y(), option.rect.width() - total_length, option.rect.height()) :
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QRect(option.rect.x() + total_length, option.rect.y(), option.rect.width() - total_length, option.rect.height());
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return optionRemainedRect;
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}
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QRect drawScreen(QPainter *painter, const QStyleOption &option, QRect screenGeometry, const int &maxIconSize, const float brushOpacity)
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{
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float scr_ratio = (float)screenGeometry.width() / (float)screenGeometry.height();
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bool isVertical = (scr_ratio < 1.0);
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int scr_maxlength = screenMaxLength(option, maxIconSize);
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int scr_maxthickness = maxIconSize >= 0 ? qMin(maxIconSize, option.rect.height() - MARGIN * 2) : option.rect.height() - MARGIN * 2;
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int total_length = scr_maxlength + MARGIN * 2;
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int pen_width = 2;
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painter->save();
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painter->setRenderHint(QPainter::Antialiasing, true);
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float scr_maxratio = ((float)scr_maxlength) / (float)(scr_maxthickness);
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scr_ratio = qMin(qMax((float)0.75, scr_ratio), (float)scr_maxratio);
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int scr_height = (!isVertical ? scr_maxthickness - MARGIN * 4 : scr_maxthickness - MARGIN * 2);
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int scr_width = scr_ratio * scr_height;
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//! provide even screen width and height
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if (scr_width % 2 == 1) {
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scr_width++;
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}
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//! provide even screen width and height
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if (scr_height % 2 == 0) {
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scr_height++;
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}
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int topmargin = (option.rect.height() - scr_maxthickness) / 2;
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QRect screenMaximumRect = (qApp->layoutDirection() == Qt::RightToLeft) ?
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QRect(option.rect.x() + option.rect.width() - scr_maxlength - MARGIN, option.rect.y() + topmargin, scr_maxlength, scr_maxthickness - 1) :
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QRect(option.rect.x() + MARGIN , option.rect.y() + topmargin, scr_maxlength, scr_maxthickness - 1);
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int topScreenMargin = (screenMaximumRect.height() - scr_height) / 2;
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int leftScreenMargin = (screenMaximumRect.width() - scr_width) / 2;
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QRect screenRect(screenMaximumRect.x() + leftScreenMargin + MARGIN/2, screenMaximumRect.y() + topScreenMargin, scr_width, scr_height);
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QRect screenAvailableRect(screenRect.x() + pen_width - 1, screenRect.y() + pen_width - 1, screenRect.width() - pen_width - 1, screenRect.height() - pen_width - 1);
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bool selected = Latte::isSelected(option);
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QPalette::ColorRole textColorRole = selected ? QPalette::HighlightedText : QPalette::Text;
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QPen pen; pen.setWidth(pen_width);
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QColor pencolor = option.palette.color(Latte::colorGroup(option), textColorRole);
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pencolor.setAlphaF(brushOpacity);
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pen.setColor(pencolor);
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painter->setPen(pen);
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painter->drawRect(screenRect);
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pen.setWidth(1);
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painter->setPen(pen);
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int basex = screenRect.x() + (screenRect.width()/2) - 4;
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int basey = screenRect.y() + screenRect.height() + 2;
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painter->setRenderHint(QPainter::Antialiasing, false);
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painter->drawLine(basex , basey, basex + 8, basey);
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// debug screen maximum available rect
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//painter->drawRect(screenMaximumRect);
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painter->restore();
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return screenAvailableRect;
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}
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}
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