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nodeview: added arrows to indicate a node can be expanded

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Minor UI detail. Also slightly increases the size of node items and adds
"short names" to the video input and audio input nodes.
This commit is contained in:
itsmattkc
2020-08-21 15:15:39 +10:00
parent f6760386ce
commit 9aabde303e
6 changed files with 51 additions and 24 deletions
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app/widget/nodeview/nodeviewitem.cpp
+39 -22
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@@ -133,12 +133,7 @@ int NodeViewItem::DefaultItemHeight()
int NodeViewItem::DefaultItemWidth()
{
return QFontMetricsWidth(QFontMetrics(QFont()), "HHHHHHHHHH");;
}
int NodeViewItem::DefaultMaximumTextWidth()
{
return QFontMetricsWidth(QFontMetrics(QFont()), "HHHHHHHH");;
return QFontMetricsWidth(QFontMetrics(QFont()), "HHHHHHHHHHHH");;
}
int NodeViewItem::DefaultItemBorder()
@@ -281,35 +276,57 @@ void NodeViewItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *opti
node_label = node_->GetLabel();
}
{
QFont f;
QFontMetrics fm(f);
QFont f;
QFontMetrics fm(f);
int max_text_width = DefaultMaximumTextWidth();
// Draw right or down arrow based on expanded state
int icon_size = fm.height() / 2;
int icon_padding = title_bar_rect_.height() / 2 - icon_size / 2;
int icon_full_size = icon_size + icon_padding * 2;
const QIcon& expand_icon = IsExpanded() ? icon::TriDown : icon::TriRight;
expand_icon.paint(painter, QRect(title_bar_rect_.x() + icon_padding,
title_bar_rect_.y() + icon_padding,
icon_size,
icon_size));
if (QFontMetricsWidth(fm, node_label) > max_text_width) {
QString concatenated;
// Calculate how much space we have for text
int item_width = title_bar_rect_.width();
int max_text_width = item_width - DefaultTextPadding() * 2 - icon_full_size;
int label_width = QFontMetricsWidth(fm, node_label);
do {
node_label.chop(1);
concatenated = QCoreApplication::translate("NodeViewItem", "%1...").arg(node_label);
} while (QFontMetricsWidth(fm, concatenated) > max_text_width);
// Concatenate text if necessary (adds a "..." to the end and removes characters until the
// string fits in the bounds)
if (label_width > max_text_width) {
QString concatenated;
node_label = concatenated;
}
do {
node_label.chop(1);
concatenated = QCoreApplication::translate("NodeViewItem", "%1...").arg(node_label);
} while ((label_width = QFontMetricsWidth(fm, concatenated)) > max_text_width);
node_label = concatenated;
}
// Determine the text color (automatically calculate from node background color)
if (node_color.GetRoughLuminance() > 0.66) {
painter->setPen(Qt::black);
} else {
painter->setPen(Qt::white);
}
// Draw the text in a rect (the rect is sized around text already in the constructor)
painter->drawText(title_bar_rect_,
Qt::AlignCenter,
node_label);
// Determine X position (favors horizontal centering unless it'll overrun the arrow)
QRectF text_rect = title_bar_rect_;
Qt::Alignment text_align = Qt::AlignCenter;
int likely_x = item_width / 2 - label_width / 2;
if (likely_x < icon_full_size) {
text_rect.adjust(icon_full_size, 0, 0, 0);
text_align = Qt::AlignLeft | Qt::AlignVCenter;
}
// Draw the text in a rect (the rect is sized around text already in the constructor)
painter->drawText(text_rect,
text_align,
node_label);
}
// Draw final border