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/*
SPDX-FileCopyrightText: 2019 Michail Vourlakos <mvourlakos@gmail.com>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "generictools.h"
// Qt
#include <QApplication>
#include <QDebug>
#include <QStyle>
#include <QTextDocument>
namespace Latte {
const int ICONMARGIN = 1;
const int INDICATORCHANGESLENGTH = 6;
const int INDICATORCHANGESMARGIN = 5;
const int MARGIN = 2;
bool isEnabled(const QStyleOption &option)
{
if (option.state & QStyle::State_Enabled) {
return true;
}
return false;
}
bool isActive(const QStyleOption &option)
{
if (option.state & QStyle::State_Active) {
return true;
}
return false;
}
bool isSelected(const QStyleOption &option)
{
if (option.state & QStyle::State_Selected) {
return true;
}
return false;
}
bool isHovered(const QStyleOption &option)
{
if (option.state & QStyle::State_MouseOver) {
return true;
}
return false;
}
bool isFocused(const QStyleOption &option)
{
if (option.state & QStyle::State_HasFocus) {
return true;
}
return false;
}
bool isTextCentered(const QStyleOptionViewItem &option)
{
if (option.displayAlignment & Qt::AlignHCenter) {
return true;
}
return false;
}
Qt::AlignmentFlag horizontalAlignment(Qt::Alignment alignments)
{
if (alignments & Qt::AlignHCenter) {
return Qt::AlignHCenter;
} else if (alignments & Qt::AlignRight) {
return Qt::AlignRight;
}
return Qt::AlignLeft;
}
QPalette::ColorGroup colorGroup(const QStyleOption &option)
{
if (!isEnabled(option)) {
return QPalette::Disabled;
}
if (isActive(option) || isFocused(option)) {
return QPalette::Active;
}
if (!isActive(option) && isSelected(option)) {
return QPalette::Inactive;
}
return QPalette::Normal;
}
QStringList subtracted(const QStringList &original, const QStringList ¤t)
{
QStringList subtract;
for(int i=0; i<original.count(); ++i) {
if (!current.contains(original[i])) {
subtract << original[i];
}
}
return subtract;
}
void drawFormattedText(QPainter *painter, const QStyleOptionViewItem &option, const float textOpacity)
{
drawFormattedText(painter, option, option.text, horizontalAlignment(option.displayAlignment), textOpacity);
}
void drawFormattedText(QPainter *painter, const QStyleOptionMenuItem &option, const float textOpacity)
{
drawFormattedText(painter, option, option.text, Qt::AlignLeft, textOpacity);
}
QRect remainedFromFormattedText(const QStyleOption &option, const QString &text, Qt::AlignmentFlag alignment)
{
QString css = QString("body {}");
QTextDocument doc;
doc.setDefaultStyleSheet(css);
doc.setHtml("<body>" + text + "</body>");
//we need an offset to be in the same vertical center of TextEdit
int textWidth = doc.size().width() + MARGIN;
Qt::AlignmentFlag curalign = alignment;
if (qApp->layoutDirection() == Qt::LeftToRight || (curalign == Qt::AlignHCenter)) {
curalign = alignment;
} else {
curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
}
if (alignment == Qt::AlignHCenter) {
return option.rect;
} else if (curalign == Qt::AlignRight) {
return QRect(option.rect.x(), option.rect.y(), option.rect.width() - textWidth, option.rect.height());
} else {
return QRect(option.rect.x() + textWidth, option.rect.y(), option.rect.width() - textWidth, option.rect.height());
}
}
void drawFormattedText(QPainter *painter, const QStyleOption &option, const QString &text, Qt::AlignmentFlag alignment, const float textOpacity)
{
painter->save();
QPalette::ColorRole applyColor = Latte::isSelected(option) ? QPalette::HighlightedText : QPalette::Text;
QBrush nBrush = option.palette.brush(Latte::colorGroup(option), applyColor);
QColor brushColor = nBrush.color();
brushColor.setAlphaF(textOpacity);
QString css = QString("body { color : %1;}").arg(brushColor.name(QColor::HexArgb));
QTextDocument doc;
doc.setDefaultStyleSheet(css);
doc.setHtml("<body>" + text + "</body>");
//we need an offset to be in the same vertical center of TextEdit
int offsetY = ((option.rect.height() - doc.size().height()) / 2);
int textWidth = doc.size().width();
int textY = option.rect.top() + offsetY + 1;
Qt::AlignmentFlag curalign = alignment;
if (qApp->layoutDirection() == Qt::LeftToRight || (curalign == Qt::AlignHCenter)) {
curalign = alignment;
} else {
curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
}
if (alignment == Qt::AlignHCenter) {
int textX = qMax(0, (option.rect.width() / 2) - (textWidth/2));
painter->translate(option.rect.left() + textX, textY);
} else if (curalign == Qt::AlignRight) {
painter->translate(qMax(option.rect.left(), option.rect.right() - textWidth), textY);
} else {
painter->translate(option.rect.left(), textY);
}
QRect clip(0, 0, option.rect.width(), option.rect.height());
doc.drawContents(painter, clip);
painter->restore();
}
void drawBackground(QPainter *painter, const QStyleOptionViewItem &option)
{
QStyleOptionViewItem backOption = option;
backOption.text = "";
//! Remove the focus dotted lines
backOption.state = (option.state & ~QStyle::State_HasFocus);
option.widget->style()->drawControl(QStyle::CE_ItemViewItem, &backOption, painter);
}
void drawBackground(QPainter *painter, const QStyle *style, const QStyleOptionMenuItem &option)
{
QStyleOptionMenuItem backOption = option;
backOption.text = "";
//! Remove the focus dotted lines
// iconOption.state = (option.state & ~QStyle::State_HasFocus);
style->drawControl(QStyle::CE_MenuItem, &backOption, painter);
}
QRect remainedFromLayoutIcon(const QStyleOption &option, Qt::AlignmentFlag alignment, int lengthMargin, int thickMargin)
{
if (alignment == Qt::AlignHCenter) {
return option.rect;
}
return remainedFromIcon(option, alignment, lengthMargin, thickMargin);
}
void drawLayoutIcon(QPainter *painter, const QStyleOption &option, const bool &isBackgroundFile, const QString &iconName, Qt::AlignmentFlag alignment, int lengthMargin, int thickMargin)
{
bool active = Latte::isActive(option);
bool selected = Latte::isSelected(option);
bool focused = Latte::isFocused(option);
int lenmargin = (lengthMargin == -1 ? ICONMARGIN + MARGIN : lengthMargin);
int thickmargin = (thickMargin == -1 ? ICONMARGIN : thickMargin);
int iconsize = option.rect.height() - 2*thickMargin;
int total = iconsize + 2*lenmargin;
Qt::AlignmentFlag curalign = alignment;
if (qApp->layoutDirection() == Qt::LeftToRight || alignment == Qt::AlignHCenter) {
curalign = alignment;
} else {
curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
}
QRect target;
if (curalign == Qt::AlignLeft) {
target = QRect(option.rect.x() + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
} else if (curalign == Qt::AlignRight) {
target = QRect(option.rect.x() + option.rect.width() - total + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
} else {
//! centered
target = QRect(option.rect.x() + ((option.rect.width() - total)/2) + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
}
painter->save();
painter->setRenderHint(QPainter::Antialiasing, true);
if (isBackgroundFile) {
int backImageMargin = 1; //most icon themes provide 1-2px. padding around icons //OLD CALCS: ICONMARGIN; //qMin(target.height()/4, ICONMARGIN+1);
QRect backTarget(target.x() + backImageMargin, target.y() + backImageMargin, target.width() - 2*backImageMargin, target.height() - 2*backImageMargin);
QPixmap backImage(iconName);
backImage = backImage.copy(backTarget);
QPalette::ColorRole textColorRole = selected ? QPalette::HighlightedText : QPalette::Text;
QBrush imageBrush(backImage);
QPen pen; pen.setWidth(1);
pen.setColor(option.palette.color(Latte::colorGroup(option), textColorRole));
painter->setBrush(imageBrush);
painter->setPen(pen);
painter->drawEllipse(backTarget);
} else {
QIcon::Mode mode = ((active && (selected || focused)) ? QIcon::Selected : QIcon::Normal);
painter->drawPixmap(target, QIcon::fromTheme(iconName).pixmap(target.height(), target.height(), mode));
}
painter->restore();
}
QRect remainedFromColorSchemeIcon(const QStyleOption &option, Qt::AlignmentFlag alignment, int lengthMargin, int thickMargin)
{
if (alignment == Qt::AlignHCenter) {
return option.rect;
}
return remainedFromIcon(option, alignment, lengthMargin, thickMargin);
}
void drawColorSchemeIcon(QPainter *painter, const QStyleOption &option, const QColor &textColor, const QColor &backgroundColor, Qt::AlignmentFlag alignment, int lengthMargin, int thickMargin)
{
bool active = Latte::isActive(option);
bool selected = Latte::isSelected(option);
bool focused = Latte::isFocused(option);
int lenmargin = (lengthMargin == -1 ? ICONMARGIN + MARGIN : lengthMargin);
int thickmargin = (thickMargin == -1 ? ICONMARGIN : thickMargin);
int iconsize = option.rect.height() - 2*thickMargin;
int total = iconsize + 2*lenmargin;
Qt::AlignmentFlag curalign = alignment;
if (qApp->layoutDirection() == Qt::LeftToRight || alignment == Qt::AlignHCenter) {
curalign = alignment;
} else {
curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
}
QRect target;
if (curalign == Qt::AlignLeft) {
target = QRect(option.rect.x() + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
} else if (curalign == Qt::AlignRight) {
target = QRect(option.rect.x() + option.rect.width() - total + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
} else {
//! centered
target = QRect(option.rect.x() + ((option.rect.width() - total)/2) + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
}
painter->save();
painter->setRenderHint(QPainter::Antialiasing, false);
int backImageMargin = 0; //most icon themes provide 1-2px. padding around icons //OLD CALCS: ICONMARGIN; //qMin(target.height()/4, ICONMARGIN+1);
QRect backTarget(target.x() + backImageMargin, target.y() + backImageMargin, target.width() - 2*backImageMargin, target.height() - 2*backImageMargin);
QPalette::ColorRole textColorRole = selected ? QPalette::HighlightedText : QPalette::Text;
QBrush colorbrush(backgroundColor);
QPen pen; pen.setWidth(1);
pen.setColor(option.palette.color(Latte::colorGroup(option), textColorRole));
painter->setBrush(colorbrush);
painter->setPen(pen);
int rectsize = 0.7 * backTarget.width();
int gap = backTarget.width() - rectsize;
painter->drawRect(backTarget.right() - rectsize, backTarget.bottom() - rectsize, rectsize, rectsize);
colorbrush.setColor(textColor);
painter->setBrush(colorbrush);
painter->drawRect(backTarget.x(), backTarget.y(), rectsize, rectsize);
painter->restore();
}
QRect remainedFromIcon(const QStyleOption &option, Qt::AlignmentFlag alignment, int lengthMargin, int thickMargin)
{
int lenmargin = (lengthMargin == -1 ? ICONMARGIN + MARGIN : lengthMargin);
int thickmargin = (thickMargin == -1 ? ICONMARGIN : thickMargin);
int iconsize = option.rect.height() - 2*thickMargin;
int total = iconsize + 2*lenmargin;
Qt::AlignmentFlag curalign = alignment;
if (qApp->layoutDirection() == Qt::LeftToRight) {
curalign = alignment;
} else {
curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
}
QRect optionRemainedRect = (curalign == Qt::AlignLeft) ? QRect(option.rect.x() + total, option.rect.y(), option.rect.width() - total, option.rect.height()) :
QRect(option.rect.x(), option.rect.y(), option.rect.width() - total, option.rect.height());
return optionRemainedRect;
}
void drawIcon(QPainter *painter, const QStyleOption &option, const QString &icon, Qt::AlignmentFlag alignment, int lengthMargin, int thickMargin)
{
int lenmargin = (lengthMargin == -1 ? ICONMARGIN + MARGIN : lengthMargin);
int thickmargin = (thickMargin == -1 ? ICONMARGIN : thickMargin);
int iconsize = option.rect.height() - 2*thickMargin;
int total = iconsize + 2*lenmargin;
bool active = Latte::isActive(option);
bool selected = Latte::isSelected(option);
bool focused = Latte::isFocused(option);
QIcon::Mode mode = ((active && (selected || focused)) ? QIcon::Selected : QIcon::Normal);
Qt::AlignmentFlag curalign = alignment;
if (qApp->layoutDirection() == Qt::LeftToRight) {
curalign = alignment;
} else {
curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
}
QRect target;
if (curalign == Qt::AlignLeft) {
target = QRect(option.rect.x() + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
} else {
target = QRect(option.rect.x() + option.rect.width() - total + lenmargin, option.rect.y() + thickmargin, iconsize, iconsize);
}
painter->drawPixmap(target, QIcon::fromTheme(icon).pixmap(target.height(), target.height(), mode));
}
int primitiveCheckBoxWidth(const QStyleOptionButton &option, const QWidget *widget)
{
QStyleOption copt;
copt.rect = option.rect;
int w = QApplication::style()->sizeFromContents(QStyle::CT_CheckBox, &copt, QSize(0, option.rect.height()), widget).width();
w = w > 0 ? w : option.rect.height() - 2*MARGIN;
return w;
}
QRect remainedFromCheckBox(const QStyleOptionButton &option, Qt::AlignmentFlag alignment, const QWidget *widget)
{
int length = primitiveCheckBoxWidth(option, widget) - MARGIN;
Qt::AlignmentFlag curalign = alignment;
if (qApp->layoutDirection() == Qt::LeftToRight) {
curalign = alignment;
} else {
curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
}
QRect optionRemainedRect = (curalign == Qt::AlignLeft) ? QRect(option.rect.x() + length, option.rect.y(), option.rect.width() - length, option.rect.height()) :
QRect(option.rect.x(), option.rect.y(), option.rect.width() - length, option.rect.height());
return optionRemainedRect;
}
void drawCheckBox(QPainter *painter, const QStyleOptionButton &option, Qt::AlignmentFlag alignment, const QWidget *widget)
{
int length = primitiveCheckBoxWidth(option, widget) - MARGIN;
QStyleOptionButton optionbtn = option;
Qt::AlignmentFlag curalign = alignment;
if (qApp->layoutDirection() == Qt::LeftToRight) {
curalign = alignment;
} else {
curalign = alignment == Qt::AlignLeft ? Qt::AlignRight : Qt::AlignLeft;
}
QRect changesrect = (curalign == Qt::AlignLeft) ? QRect(option.rect.x() + MARGIN, option.rect.y(), length - MARGIN, option.rect.height()) :
QRect(option.rect.x() + option.rect.width() - length, option.rect.y(), length - MARGIN, option.rect.height());
optionbtn.rect = changesrect;
QApplication::style()->drawControl(QStyle::CE_CheckBox, &optionbtn, painter, widget);
}
QRect remainedFromChangesIndicator(const QStyleOptionViewItem &option)
{
int tsize{INDICATORCHANGESLENGTH + INDICATORCHANGESMARGIN*2};
QRect optionRemainedRect = (qApp->layoutDirection() == Qt::RightToLeft) ? QRect(option.rect.x() + tsize, option.rect.y(), option.rect.width() - tsize, option.rect.height()) :
QRect(option.rect.x(), option.rect.y(), option.rect.width() - tsize, option.rect.height());
return optionRemainedRect;
}
void drawChangesIndicator(QPainter *painter, const QStyleOptionViewItem &option)
{
//! draw changes circle indicator
int csize{INDICATORCHANGESLENGTH};
int tsize{INDICATORCHANGESLENGTH + INDICATORCHANGESMARGIN*2};
painter->save();
QRect changesRect = (qApp->layoutDirection() == Qt::RightToLeft) ? QRect(option.rect.x() + INDICATORCHANGESMARGIN, option.rect.y() + option.rect.height()/2 - csize/2, csize, csize) :
QRect(option.rect.x() + option.rect.width() - csize - INDICATORCHANGESMARGIN, option.rect.y() + option.rect.height()/2 - csize/2, csize, csize);
QColor plasmaOrange(246, 116, 0); //orangish color used from plasma systemsettings #f67400
QBrush backBrush(plasmaOrange);
QPen pen; pen.setWidth(1);
pen.setColor(plasmaOrange);
painter->setBrush(backBrush);
painter->setPen(pen);
painter->drawEllipse(changesRect);
painter->restore();
}
int screenMaxLength(const QStyleOption &option, const int &maxIconSize)
{
int icon_length = maxIconSize >= 0 ? qMin(option.rect.height(), maxIconSize) : option.rect.height();
int scr_maxlength = icon_length * 1.7;
//! provide odd screen_maxlength
if (scr_maxlength % 2 == 0) {
scr_maxlength--;
}
return scr_maxlength;
}
QRect remainedFromScreenDrawing(const QStyleOption &option, const int &maxIconSize)
{
int total_length = screenMaxLength(option, maxIconSize) + MARGIN * 2 + 1;
QRect optionRemainedRect = (qApp->layoutDirection() == Qt::RightToLeft) ? QRect(option.rect.x(), option.rect.y(), option.rect.width() - total_length, option.rect.height()) :
QRect(option.rect.x() + total_length, option.rect.y(), option.rect.width() - total_length, option.rect.height());
return optionRemainedRect;
}
QRect drawScreen(QPainter *painter, const QStyleOption &option, QRect screenGeometry, const int &maxIconSize, const float brushOpacity)
{
float scr_ratio = (float)screenGeometry.width() / (float)screenGeometry.height();
bool isVertical = (scr_ratio < 1.0);
int scr_maxlength = screenMaxLength(option, maxIconSize);
int scr_maxthickness = maxIconSize >= 0 ? qMin(maxIconSize, option.rect.height() - MARGIN * 2) : option.rect.height() - MARGIN * 2;
int total_length = scr_maxlength + MARGIN * 2;
int pen_width = 2;
painter->save();
painter->setRenderHint(QPainter::Antialiasing, true);
float scr_maxratio = ((float)scr_maxlength) / (float)(scr_maxthickness);
scr_ratio = qMin(qMax((float)0.75, scr_ratio), (float)scr_maxratio);
int scr_height = (!isVertical ? scr_maxthickness - MARGIN * 4 : scr_maxthickness - MARGIN * 2);
int scr_width = scr_ratio * scr_height;
//! provide even screen width and height
if (scr_width % 2 == 1) {
scr_width++;
}
//! provide even screen width and height
if (scr_height % 2 == 0) {
scr_height++;
}
int topmargin = (option.rect.height() - scr_maxthickness) / 2;
QRect screenMaximumRect = (qApp->layoutDirection() == Qt::RightToLeft) ?
QRect(option.rect.x() + option.rect.width() - scr_maxlength - MARGIN, option.rect.y() + topmargin, scr_maxlength, scr_maxthickness - 1) :
QRect(option.rect.x() + MARGIN , option.rect.y() + topmargin, scr_maxlength, scr_maxthickness - 1);
int topScreenMargin = (screenMaximumRect.height() - scr_height) / 2;
int leftScreenMargin = (screenMaximumRect.width() - scr_width) / 2;
QRect screenRect(screenMaximumRect.x() + leftScreenMargin + MARGIN/2, screenMaximumRect.y() + topScreenMargin, scr_width, scr_height);
QRect screenAvailableRect(screenRect.x() + pen_width - 1, screenRect.y() + pen_width - 1, screenRect.width() - pen_width - 1, screenRect.height() - pen_width - 1);
bool selected = Latte::isSelected(option);
QPalette::ColorRole textColorRole = selected ? QPalette::HighlightedText : QPalette::Text;
QPen pen; pen.setWidth(pen_width);
QColor pencolor = option.palette.color(Latte::colorGroup(option), textColorRole);
pencolor.setAlphaF(brushOpacity);
pen.setColor(pencolor);
painter->setPen(pen);
painter->drawRect(screenRect);
pen.setWidth(1);
painter->setPen(pen);
int basex = screenRect.x() + (screenRect.width()/2) - 4;
int basey = screenRect.y() + screenRect.height() + 2;
painter->setRenderHint(QPainter::Antialiasing, false);
painter->drawLine(basex , basey, basex + 8, basey);
// debug screen maximum available rect
//painter->drawRect(screenMaximumRect);
painter->restore();
return screenAvailableRect;
}
}
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