392 lines
9.2 KiB
C++
392 lines
9.2 KiB
C++
/*
|
|
This file is part of Telegram Desktop,
|
|
the official desktop application for the Telegram messaging service.
|
|
|
|
For license and copyright information please follow this link:
|
|
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
|
|
*/
|
|
#include "layout/layout_mosaic.h"
|
|
|
|
#include "styles/style_chat_helpers.h"
|
|
|
|
namespace Mosaic::Layout {
|
|
|
|
AbstractMosaicLayout::AbstractMosaicLayout(int bigWidth)
|
|
: _bigWidth(bigWidth) {
|
|
}
|
|
|
|
int AbstractMosaicLayout::rowHeightAt(int row) const {
|
|
Expects(row >= 0 && row < _rows.size());
|
|
|
|
return _rows[row].height;
|
|
}
|
|
|
|
int AbstractMosaicLayout::countDesiredHeight(int newWidth) {
|
|
auto result = 0;
|
|
for (auto &row : _rows) {
|
|
layoutRow(row, newWidth ? newWidth : _width);
|
|
result += row.height;
|
|
}
|
|
return _padding.top() + result + _padding.bottom();
|
|
}
|
|
|
|
FoundItem AbstractMosaicLayout::findByPoint(const QPoint &globalPoint) const {
|
|
auto sx = globalPoint.x() - _padding.left();
|
|
auto sy = globalPoint.y() - _padding.top();
|
|
auto row = -1;
|
|
auto col = -1;
|
|
auto sel = -1;
|
|
bool exact = true;
|
|
if (sy >= 0) {
|
|
row = 0;
|
|
for (auto rows = rowsCount(); row < rows; ++row) {
|
|
const auto rowHeight = _rows[row].height;
|
|
if (sy < rowHeight) {
|
|
break;
|
|
}
|
|
sy -= rowHeight;
|
|
}
|
|
} else {
|
|
row = 0;
|
|
exact = false;
|
|
}
|
|
if (row >= rowsCount()) {
|
|
row = rowsCount() - 1;
|
|
exact = false;
|
|
}
|
|
if (sx < 0) {
|
|
sx = 0;
|
|
exact = false;
|
|
}
|
|
if (sx >= 0 && row >= 0 && row < rowsCount()) {
|
|
const auto columnsCount = _rows[row].items.size();
|
|
col = 0;
|
|
for (int cols = columnsCount; col < cols; ++col) {
|
|
const auto item = itemAt(row, col);
|
|
const auto width = item->width();
|
|
if (sx < width) {
|
|
break;
|
|
}
|
|
sx -= width;
|
|
sx -= _rightSkip;
|
|
}
|
|
if (col >= columnsCount) {
|
|
col = columnsCount - 1;
|
|
exact = false;
|
|
}
|
|
|
|
sel = ::Layout::PositionToIndex(row, + col);
|
|
} else {
|
|
row = col = -1;
|
|
}
|
|
return { sel, exact, QPoint(sx, sy) };
|
|
}
|
|
|
|
QRect AbstractMosaicLayout::findRect(int index) const {
|
|
const auto clip = QRect(0, 0, _width, 100);
|
|
const auto fromX = style::RightToLeft()
|
|
? (_width - clip.x() - clip.width())
|
|
: clip.x();
|
|
const auto toX = style::RightToLeft()
|
|
? (_width - clip.x())
|
|
: (clip.x() + clip.width());
|
|
const auto rows = _rows.size();
|
|
auto top = 0;
|
|
for (auto row = 0; row != rows; ++row) {
|
|
auto &inlineRow = _rows[row];
|
|
// if ((top + inlineRow.height) > clip.top()) {
|
|
auto left = 0;
|
|
if (row == (rows - 1)) {
|
|
// context.lastRow = true;
|
|
}
|
|
for (const auto &item : inlineRow.items) {
|
|
if (left >= toX) {
|
|
break;
|
|
}
|
|
|
|
const auto w = item->width();
|
|
if ((left + w) > fromX) {
|
|
if (item->position() == index) {
|
|
return QRect(
|
|
left + _padding.left(),
|
|
top + _padding.top(),
|
|
item->width(),
|
|
item->height());
|
|
}
|
|
}
|
|
left += w;
|
|
left += _rightSkip;
|
|
}
|
|
// }
|
|
top += inlineRow.height;
|
|
}
|
|
return QRect();
|
|
}
|
|
|
|
void AbstractMosaicLayout::addItems(
|
|
gsl::span<const not_null<AbstractLayoutItem*>> items) {
|
|
_rows.reserve(items.size());
|
|
auto row = Row();
|
|
row.items.reserve(kInlineItemsMaxPerRow);
|
|
auto sumWidth = 0;
|
|
for (const auto &item : items) {
|
|
addItem(item, row, sumWidth);
|
|
}
|
|
rowFinalize(row, sumWidth, true);
|
|
}
|
|
|
|
void AbstractMosaicLayout::setRightSkip(int rightSkip) {
|
|
_rightSkip = rightSkip;
|
|
}
|
|
|
|
void AbstractMosaicLayout::setPadding(QMargins padding) {
|
|
_padding = padding;
|
|
}
|
|
|
|
void AbstractMosaicLayout::setFullWidth(int w) {
|
|
_width = w;
|
|
}
|
|
|
|
bool AbstractMosaicLayout::empty() const {
|
|
return _rows.empty();
|
|
}
|
|
|
|
int AbstractMosaicLayout::rowsCount() const {
|
|
return _rows.size();
|
|
}
|
|
|
|
not_null<AbstractLayoutItem*> AbstractMosaicLayout::itemAt(
|
|
int row,
|
|
int column) const {
|
|
Expects((row >= 0)
|
|
&& (row < _rows.size())
|
|
&& (column >= 0)
|
|
&& (column < _rows[row].items.size()));
|
|
|
|
return _rows[row].items[column];
|
|
}
|
|
|
|
not_null<AbstractLayoutItem*> AbstractMosaicLayout::itemAt(int index) const {
|
|
const auto &[row, column] = ::Layout::IndexToPosition(index);
|
|
return itemAt(row, column);
|
|
}
|
|
|
|
AbstractLayoutItem *AbstractMosaicLayout::maybeItemAt(
|
|
int row,
|
|
int column) const {
|
|
if ((row >= 0)
|
|
&& (row < _rows.size())
|
|
&& (column >= 0)
|
|
&& (column < _rows[row].items.size())) {
|
|
return _rows[row].items[column];
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
AbstractLayoutItem *AbstractMosaicLayout::maybeItemAt(int index) const {
|
|
const auto &[row, column] = ::Layout::IndexToPosition(index);
|
|
return maybeItemAt(row, column);
|
|
}
|
|
|
|
void AbstractMosaicLayout::clearRows(bool resultsDeleted) {
|
|
if (!resultsDeleted) {
|
|
for (const auto &row : _rows) {
|
|
for (const auto &item : row.items) {
|
|
item->setPosition(-1);
|
|
}
|
|
}
|
|
}
|
|
_rows.clear();
|
|
}
|
|
|
|
void AbstractMosaicLayout::forEach(
|
|
Fn<void(not_null<const AbstractLayoutItem*>)> callback) {
|
|
for (const auto &row : _rows) {
|
|
for (const auto &item : row.items) {
|
|
callback(item);
|
|
}
|
|
}
|
|
}
|
|
|
|
void AbstractMosaicLayout::paint(
|
|
Fn<void(not_null<AbstractLayoutItem*>, QPoint)> paintItem,
|
|
const QRect &clip) const {
|
|
auto top = _padding.top();
|
|
const auto fromX = style::RightToLeft()
|
|
? (_width - clip.x() - clip.width())
|
|
: clip.x();
|
|
const auto toX = style::RightToLeft()
|
|
? (_width - clip.x())
|
|
: (clip.x() + clip.width());
|
|
const auto rows = _rows.size();
|
|
for (auto row = 0; row != rows; ++row) {
|
|
if (top >= clip.top() + clip.height()) {
|
|
break;
|
|
}
|
|
auto &inlineRow = _rows[row];
|
|
if ((top + inlineRow.height) > clip.top()) {
|
|
auto left = _padding.left();
|
|
if (row == (rows - 1)) {
|
|
// context.lastRow = true;
|
|
}
|
|
for (const auto &item : inlineRow.items) {
|
|
if (left >= toX) {
|
|
break;
|
|
}
|
|
|
|
const auto w = item->width();
|
|
if ((left + w) > fromX) {
|
|
paintItem(item, QPoint(left, top));
|
|
}
|
|
left += w;
|
|
left += _rightSkip;
|
|
}
|
|
}
|
|
top += inlineRow.height;
|
|
}
|
|
}
|
|
|
|
int AbstractMosaicLayout::validateExistingRows(
|
|
Fn<bool(not_null<const AbstractLayoutItem*>, int)> checkItem,
|
|
int count) {
|
|
auto until = 0;
|
|
auto untilRow = 0;
|
|
auto untilCol = 0;
|
|
while (until < count) {
|
|
if ((untilRow >= _rows.size())
|
|
|| checkItem(_rows[untilRow].items[untilCol], until)) {
|
|
break;
|
|
}
|
|
++until;
|
|
if (++untilCol == _rows[untilRow].items.size()) {
|
|
++untilRow;
|
|
untilCol = 0;
|
|
}
|
|
}
|
|
if (until == count) { // All items are layed out.
|
|
if (untilRow == _rows.size()) { // Nothing changed.
|
|
return until;
|
|
}
|
|
|
|
{
|
|
const auto rows = _rows.size();
|
|
auto skip = untilCol;
|
|
for (auto i = untilRow; i < rows; ++i) {
|
|
for (const auto &item : _rows[i].items) {
|
|
if (skip) {
|
|
--skip;
|
|
} else {
|
|
item->setPosition(-1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (!untilCol) { // All good rows are filled.
|
|
_rows.resize(untilRow);
|
|
return until;
|
|
}
|
|
_rows.resize(untilRow + 1);
|
|
_rows[untilRow].items.resize(untilCol);
|
|
_rows[untilRow].maxWidth = ranges::accumulate(
|
|
_rows[untilRow].items,
|
|
0,
|
|
[](int w, auto &row) { return w + row->maxWidth(); });
|
|
layoutRow(_rows[untilRow], _width);
|
|
return until;
|
|
}
|
|
if (untilRow && !untilCol) { // Remove last row, maybe it is not full.
|
|
--untilRow;
|
|
untilCol = _rows[untilRow].items.size();
|
|
}
|
|
until -= untilCol;
|
|
|
|
for (auto i = untilRow; i < _rows.size(); ++i) {
|
|
for (const auto &item : _rows[i].items) {
|
|
item->setPosition(-1);
|
|
}
|
|
}
|
|
_rows.resize(untilRow);
|
|
|
|
return until;
|
|
}
|
|
|
|
void AbstractMosaicLayout::addItem(
|
|
not_null<AbstractLayoutItem*> item,
|
|
Row &row,
|
|
int &sumWidth) {
|
|
// item->preload();
|
|
|
|
using namespace ::Layout;
|
|
item->setPosition(PositionToIndex(_rows.size(), row.items.size()));
|
|
if (rowFinalize(row, sumWidth, false)) {
|
|
item->setPosition(PositionToIndex(_rows.size(), 0));
|
|
}
|
|
|
|
sumWidth += item->maxWidth();
|
|
if (!row.items.empty() && _rightSkip) {
|
|
sumWidth += _rightSkip;
|
|
}
|
|
|
|
row.items.push_back(item);
|
|
}
|
|
|
|
bool AbstractMosaicLayout::rowFinalize(Row &row, int &sumWidth, bool force) {
|
|
if (row.items.empty()) {
|
|
return false;
|
|
}
|
|
|
|
const auto full = (row.items.size() >= kInlineItemsMaxPerRow);
|
|
// Currently use the same GIFs layout for all widget sizes.
|
|
const auto big = (sumWidth >= _bigWidth);
|
|
if (full || big || force) {
|
|
row.maxWidth = (full || big) ? sumWidth : 0;
|
|
layoutRow(row, _width);
|
|
_rows.push_back(std::move(row));
|
|
row = Row();
|
|
row.items.reserve(kInlineItemsMaxPerRow);
|
|
sumWidth = 0;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void AbstractMosaicLayout::layoutRow(Row &row, int fullWidth) {
|
|
const auto count = int(row.items.size());
|
|
Assert(count <= kInlineItemsMaxPerRow);
|
|
|
|
// Enumerate items in the order of growing maxWidth()
|
|
// for that sort item indices by maxWidth().
|
|
int indices[kInlineItemsMaxPerRow];
|
|
for (auto i = 0; i != count; ++i) {
|
|
indices[i] = i;
|
|
}
|
|
std::sort(indices, indices + count, [&](int a, int b) {
|
|
return row.items[a]->maxWidth() < row.items[b]->maxWidth();
|
|
});
|
|
|
|
auto desiredWidth = row.maxWidth;
|
|
row.height = 0;
|
|
auto availableWidth = fullWidth - _padding.left() - _padding.right();
|
|
for (auto i = 0; i < count; ++i) {
|
|
const auto index = indices[i];
|
|
const auto &item = row.items[index];
|
|
const auto w = desiredWidth
|
|
? (item->maxWidth() * availableWidth / desiredWidth)
|
|
: item->maxWidth();
|
|
const auto actualWidth = std::max(w, st::inlineResultsMinWidth);
|
|
row.height = std::max(
|
|
row.height,
|
|
item->resizeGetHeight(actualWidth));
|
|
if (desiredWidth) {
|
|
availableWidth -= actualWidth;
|
|
desiredWidth -= row.items[index]->maxWidth();
|
|
if (index > 0 && _rightSkip) {
|
|
availableWidth -= _rightSkip;
|
|
desiredWidth -= _rightSkip;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace Mosaic::Layout
|