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https://github.com/Cockatrice/Cockatrice.git
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Properly calculate a lot of things related to these layouts. (#5817)
Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
This commit is contained in:
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5 changed files with 118 additions and 99 deletions
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@ -1,5 +1,6 @@
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#include "overlap_layout.h"
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#include <QDebug>
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#include <QtMath>
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/**
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@ -32,9 +33,10 @@ OverlapLayout::OverlapLayout(QWidget *parent,
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const int overlapPercentage,
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const int maxColumns,
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const int maxRows,
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const Qt::Orientation direction)
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const Qt::Orientation _overlapDirection,
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const Qt::Orientation _flowDirection)
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: QLayout(parent), overlapPercentage(overlapPercentage), maxColumns(maxColumns), maxRows(maxRows),
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direction(direction)
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overlapDirection(_overlapDirection), flowDirection(_flowDirection)
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{
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}
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@ -148,17 +150,21 @@ void OverlapLayout::setGeometry(const QRect &rect)
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}
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// Calculate the overlap offsets based on the layout direction and overlap percentage.
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const int overlapOffsetWidth = (direction == Qt::Horizontal) ? (maxItemWidth * overlapPercentage / 100) : 0;
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const int overlapOffsetHeight = (direction == Qt::Vertical) ? (maxItemHeight * overlapPercentage / 100) : 0;
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const int overlapOffsetWidth = (overlapDirection == Qt::Horizontal) ? (maxItemWidth * overlapPercentage / 100) : 0;
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const int overlapOffsetHeight = (overlapDirection == Qt::Vertical) ? (maxItemHeight * overlapPercentage / 100) : 0;
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// Determine the number of columns based on layout constraints and available space.
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int columns;
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if (direction == Qt::Horizontal) {
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if (flowDirection == Qt::Horizontal) {
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if (maxColumns > 0) {
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// Calculate the maximum possible columns given the available width and overlap.
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const int availableColumns = (availableWidth + overlapOffsetWidth) / (maxItemWidth - overlapOffsetWidth);
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// Use the smaller of maxColumns and availableColumns.
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qCDebug(OverlapLayoutLog) << " Max Columns " << maxColumns << " available columns " << availableColumns;
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columns = qMin(maxColumns, availableColumns);
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if (columns < 1) {
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columns = 1;
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}
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} else {
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// If no maxColumns constraint, allow as many columns as possible.
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columns = INT_MAX;
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@ -170,12 +176,16 @@ void OverlapLayout::setGeometry(const QRect &rect)
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// Determine the number of rows based on layout constraints and available space.
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int rows;
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if (direction == Qt::Vertical) {
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if (flowDirection == Qt::Vertical) {
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if (maxRows > 0) {
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// Calculate the maximum possible rows given the available height and overlap.
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const int availableRows = (availableHeight + overlapOffsetHeight) / (maxItemHeight - overlapOffsetHeight);
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// Use the smaller of maxRows and availableRows.
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qCDebug(OverlapLayoutLog) << " Max Rows " << maxRows << " available rows " << availableRows;
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rows = qMin(maxRows, availableRows);
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if (rows < 1) {
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rows = 1;
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}
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} else {
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// If no maxRows constraint, allow as many rows as possible.
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rows = INT_MAX;
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@ -200,16 +210,17 @@ void OverlapLayout::setGeometry(const QRect &rect)
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const int yPos = rect.top() + currentRow * (maxItemHeight - overlapOffsetHeight);
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item->setGeometry(QRect(xPos, yPos, maxItemWidth, maxItemHeight));
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// TODO: Figure this out properly or maybe adjust size hint to account for this?
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// Update row and column indices based on the layout direction.
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if (direction == Qt::Horizontal) {
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if (overlapDirection == Qt::Horizontal) {
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currentColumn++;
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if (currentColumn >= columns) {
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if (currentColumn > qCeil(itemList.size() / rows)) {
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currentColumn = 0;
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currentRow++;
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}
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} else {
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currentRow++;
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if (currentRow >= rows) {
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if (currentRow > qCeil(itemList.size() / columns)) {
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currentRow = 0;
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currentColumn++;
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}
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@ -223,88 +234,86 @@ void OverlapLayout::setGeometry(const QRect &rect)
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*/
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QSize OverlapLayout::calculatePreferredSize() const
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{
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// Get the parent widget for size and margin calculations.
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const QWidget *parentWidget = this->parentWidget();
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if (!parentWidget) {
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return QSize(0, 0);
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}
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// Determine the maximum item dimensions.
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if (itemList.isEmpty()) {
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return QSize(0, 0);
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}
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int availableWidth = parentWidget->width();
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int availableHeight = parentWidget->height();
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const QMargins margins = parentWidget->contentsMargins();
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availableWidth -= margins.left() + margins.right();
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availableHeight -= margins.top() + margins.bottom();
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// Determine the maximum item width and height among all layout items.
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int maxItemWidth = 0;
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int maxItemHeight = 0;
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for (QLayoutItem *item : itemList) {
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if (item == nullptr) {
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continue;
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if (item != nullptr && item->widget()) {
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QSize itemSize = item->widget()->sizeHint();
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maxItemWidth = qMax(maxItemWidth, itemSize.width());
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maxItemHeight = qMax(maxItemHeight, itemSize.height());
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}
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if (!item->widget()) {
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continue;
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}
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QSize itemSize = item->widget()->sizeHint();
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maxItemWidth = qMax(maxItemWidth, itemSize.width());
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maxItemHeight = qMax(maxItemHeight, itemSize.height());
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}
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// Calculate the overlap offsets.
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const int extra_for_overlap = (100 - overlapPercentage);
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const int overlapOffsetWidth =
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(direction == Qt::Horizontal) ? qRound((maxItemWidth / 100.0) * extra_for_overlap) : 0;
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const int overlapOffsetHeight =
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(direction == Qt::Vertical) ? qRound((maxItemHeight / 100.0) * extra_for_overlap) : 0;
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// Calculate the overlap offsets based on the layout direction and overlap percentage.
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const int overlapOffsetWidth = (overlapDirection == Qt::Horizontal) ? (maxItemWidth * overlapPercentage / 100) : 0;
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const int overlapOffsetHeight = (overlapDirection == Qt::Vertical) ? (maxItemHeight * overlapPercentage / 100) : 0;
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// Variables to hold the total dimensions based on layout orientation.
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int totalWidth = 0;
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int totalHeight = 0;
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// Calculate the total size based on the layout direction and constraints.
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if (direction == Qt::Horizontal) {
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// Determine the number of columns:
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// - Use maxColumns if it is greater than 0 (constraint set by the user).
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// - Otherwise, set the number of columns to the total number of items in the layout.
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const int numColumns = (maxColumns > 0) ? static_cast<int>(maxColumns) : static_cast<int>(itemList.size());
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// Calculate the extra space required for overlaps between columns:
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// - Each overlap reduces the effective width of subsequent items.
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const int extra_space_for_overlaps = overlapOffsetWidth * (numColumns - 1);
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// Total width:
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// - The first item's width is fully included (maxItemWidth).
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// - Add the space for all overlaps between adjacent items.
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totalWidth = maxItemWidth + extra_space_for_overlaps;
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// Determine the number of rows:
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// - Use maxRows if maxColumns is set (to constrain the number of rows).
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// - Otherwise, assume a single row.
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const int numRows =
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(maxColumns > 0) ? qCeil(static_cast<double>(itemList.size()) / static_cast<double>(numColumns)) : 1;
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// Total height:
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// - Multiply the number of rows by the item height (maxItemHeight).
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// - Subtract the height overlap between rows to avoid double-counting.
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totalHeight = maxItemHeight * numRows - (numRows - 1) * overlapOffsetHeight;
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} else if (direction == Qt::Vertical) {
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// Determine the number of columns:
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// - Use maxRows to calculate how many columns are needed if a row constraint exists.
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// - Otherwise, assume a single column.
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const int numColumns =
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(maxRows != 0) ? qCeil(static_cast<double>(itemList.size()) / static_cast<double>(maxRows)) : 1;
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// Total width:
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// - Multiply the number of columns by the item width (maxItemWidth).
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// - Subtract the width overlap between columns to avoid double-counting.
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totalWidth = maxItemWidth * numColumns - (numColumns - 1) * overlapOffsetWidth;
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// Determine the number of rows:
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// - Use maxRows if it is greater than 0 (constraint set by the user).
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// - Otherwise, set the number of rows to the total number of items in the layout.
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const int numRows = (maxRows > 0) ? static_cast<int>(maxRows) : static_cast<int>(itemList.size());
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// Calculate the extra space required for overlaps between rows:
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// - Each overlap reduces the effective height of subsequent items.
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const int extraSpaceForOverlaps = overlapOffsetHeight * (numRows - 1);
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// Total height:
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// - The first item's height is fully included (maxItemHeight).
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// - Add the space for all overlaps between adjacent items.
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totalHeight = maxItemHeight + extraSpaceForOverlaps;
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// Determine the number of columns based on layout constraints and available space.
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int columns;
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if (flowDirection == Qt::Horizontal) {
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if (maxColumns > 0) {
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// Calculate the maximum possible columns given the available width and overlap.
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const int availableColumns = (availableWidth + overlapOffsetWidth) / (maxItemWidth - overlapOffsetWidth);
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// Use the smaller of maxColumns and availableColumns.
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qCDebug(OverlapLayoutLog) << " Max Columns " << maxColumns << " available columns " << availableColumns;
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columns = qMin(maxColumns, availableColumns);
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if (columns < 1) {
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columns = 1;
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}
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} else {
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// If no maxColumns constraint, allow as many columns as possible.
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columns = INT_MAX;
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}
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} else {
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// If not a horizontal layout, column count is irrelevant.
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columns = INT_MAX;
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}
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return {totalWidth, totalHeight};
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// Determine the number of rows based on layout constraints and available space.
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int rows;
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if (flowDirection == Qt::Vertical) {
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if (maxRows > 0) {
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// Calculate the maximum possible rows given the available height and overlap.
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const int availableRows = (availableHeight + overlapOffsetHeight) / (maxItemHeight - overlapOffsetHeight);
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// Use the smaller of maxRows and availableRows.
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qCDebug(OverlapLayoutLog) << " Max Rows " << maxRows << " available rows " << availableRows;
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rows = qMin(maxRows, availableRows);
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if (rows < 1) {
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rows = 1;
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}
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} else {
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// If no maxRows constraint, allow as many rows as possible.
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rows = INT_MAX;
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}
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} else {
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// If not a vertical layout, row count is irrelevant.
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rows = INT_MAX;
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}
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if (overlapDirection == Qt::Horizontal) {
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return QSize(maxItemWidth + ((qCeil(itemList.size() / rows)) * (maxItemWidth - overlapOffsetWidth)),
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rows * maxItemHeight);
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} else {
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return QSize(columns * maxItemWidth,
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maxItemHeight + ((qCeil(itemList.size() / columns)) * (maxItemHeight - overlapOffsetHeight)));
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}
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}
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/**
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@ -341,7 +350,7 @@ QSize OverlapLayout::minimumSize() const
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*/
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void OverlapLayout::setDirection(const Qt::Orientation _direction)
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{
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direction = _direction;
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overlapDirection = _direction;
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}
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/**
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@ -378,7 +387,7 @@ void OverlapLayout::setMaxRows(const int _maxRows)
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*/
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int OverlapLayout::calculateMaxColumns() const
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{
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if (direction != Qt::Vertical || itemList.isEmpty()) {
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if (overlapDirection != Qt::Vertical || itemList.isEmpty()) {
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return 1; // Only relevant if the layout direction is vertical
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}
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@ -410,7 +419,7 @@ int OverlapLayout::calculateMaxColumns() const
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*/
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int OverlapLayout::calculateRowsForColumns(const int columns) const
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{
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if (direction != Qt::Vertical || itemList.isEmpty() || columns <= 0) {
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if (overlapDirection != Qt::Vertical || itemList.isEmpty() || columns <= 0) {
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return 1; // Only relevant if the layout direction is vertical and there are items
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}
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@ -429,7 +438,7 @@ int OverlapLayout::calculateRowsForColumns(const int columns) const
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*/
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int OverlapLayout::calculateMaxRows() const
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{
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if (direction != Qt::Horizontal || itemList.isEmpty()) {
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if (overlapDirection != Qt::Horizontal || itemList.isEmpty()) {
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return 1; // Only relevant if the layout direction is horizontal
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}
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@ -464,7 +473,7 @@ int OverlapLayout::calculateMaxRows() const
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*/
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int OverlapLayout::calculateColumnsForRows(const int rows) const
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{
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if (direction != Qt::Horizontal || itemList.isEmpty() || rows <= 0) {
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if (overlapDirection != Qt::Horizontal || itemList.isEmpty() || rows <= 0) {
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return 1; // Only relevant if the layout direction is horizontal and there are items
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}
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@ -3,8 +3,11 @@
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#include <QLayout>
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#include <QList>
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#include <QLoggingCategory>
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#include <QWidget>
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inline Q_LOGGING_CATEGORY(OverlapLayoutLog, "overlap_layout");
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class OverlapLayout : public QLayout
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{
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public:
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@ -12,7 +15,8 @@ public:
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int overlapPercentage = 10,
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int maxColumns = 2,
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int maxRows = 2,
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Qt::Orientation direction = Qt::Horizontal);
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Qt::Orientation overlapDirection = Qt::Vertical,
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Qt::Orientation flowDirection = Qt::Horizontal);
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~OverlapLayout();
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void addItem(QLayoutItem *item) override;
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@ -35,7 +39,8 @@ private:
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int overlapPercentage;
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int maxColumns;
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int maxRows;
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Qt::Orientation direction;
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Qt::Orientation overlapDirection;
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Qt::Orientation flowDirection;
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// Calculate the preferred size of the layout
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QSize calculatePreferredSize() const;
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@ -26,14 +26,14 @@ FlowWidget::FlowWidget(QWidget *parent,
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{
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// Main Widget and Layout
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if (_flowDirection == Qt::Horizontal) {
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this->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);
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this->setMinimumWidth(0);
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setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);
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setMinimumWidth(0);
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} else {
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this->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Expanding);
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this->setMinimumHeight(0);
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setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Expanding);
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setMinimumHeight(0);
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}
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mainLayout = new QHBoxLayout(this);
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this->setLayout(mainLayout);
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setLayout(mainLayout);
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if (horizontalPolicy != Qt::ScrollBarAlwaysOff || verticalPolicy != Qt::ScrollBarAlwaysOff) {
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// Scroll Area, which should expand as much as possible, since it should be the only direct child widget.
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@ -41,9 +41,8 @@ OverlapWidget::OverlapWidget(QWidget *parent,
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: QWidget(parent), overlapPercentage(overlapPercentage), maxColumns(maxColumns), maxRows(maxRows),
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direction(direction), adjustOnResize(adjustOnResize)
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{
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this->setMinimumSize(0, 0);
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overlapLayout = new OverlapLayout(this, overlapPercentage, maxColumns, maxRows, direction);
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this->setLayout(overlapLayout);
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overlapLayout = new OverlapLayout(this, overlapPercentage, maxColumns, maxRows, direction, Qt::Horizontal);
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setLayout(overlapLayout);
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}
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/**
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@ -57,7 +56,12 @@ OverlapWidget::OverlapWidget(QWidget *parent,
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*/
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void OverlapWidget::addWidget(QWidget *widgetToAdd) const
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{
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this->overlapLayout->addWidget(widgetToAdd);
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overlapLayout->addWidget(widgetToAdd);
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}
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void OverlapWidget::removeWidget(QWidget *widgetToRemove) const
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{
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overlapLayout->removeWidget(widgetToRemove);
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}
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/**
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@ -72,8 +76,8 @@ void OverlapWidget::clearLayout()
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if (overlapLayout != nullptr) {
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QLayoutItem *item;
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while ((item = overlapLayout->takeAt(0)) != nullptr) {
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delete item->widget(); // Delete the widget
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delete item; // Delete the layout item
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item->widget()->deleteLater();
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delete item;
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}
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}
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@ -17,6 +17,7 @@ public:
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Qt::Orientation direction,
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bool adjustOnResize = false);
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void addWidget(QWidget *widgetToAdd) const;
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void removeWidget(QWidget *widgetToRemove) const;
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void clearLayout();
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void adjustMaxColumnsAndRows();
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