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Place symbol texts: the icon shows where the texts go

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Each of the nine points has its own icon: a grey square for the symbol
and two bars for the lines of text, where they will go and lined up as
they will be. The grid shows them instead of arrows, and the toolbar
button takes the icon of the point chosen last, so that one sees where
a click on it puts the texts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
DaTweety
2026-10-19 17:55:12 +02:00
parent 0a577eaabf
commit 9c3c19a316
4 changed files with 103 additions and 16 deletions
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tests/qttest/symbol_text_placement_probe.cpp
+33
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@@ -11,6 +11,8 @@
// placed in the folio's directions, and one undo puts everything back.
#include <QApplication>
#include <QFontDatabase>
#include <QImage>
#include <QPainter>
#include <QSettings>
#include <QTemporaryDir>
#include <QUndoCommand>
@@ -141,6 +143,37 @@ int main(int argc, char **argv)
for (DynamicElementTextItem *t : other->dynamicTextItems()) t->setVisible(false);
check(SymbolTextPlacement::place({other}, Qt::AlignLeft) == nullptr, "a symbol without texts gives no undo step");
}
// The icons show where the texts go: bars left of the grey square
// for "left", right of it for "right", above it for "above".
auto dark = [](const QImage &img, const QRect &r) {
int n = 0;
for (int y = r.top(); y <= r.bottom(); ++y)
for (int x = r.left(); x <= r.right(); ++x) {
const QColor c = img.pixelColor(x, y);
if (c.alpha() > 128 && c.lightness() < 60) ++n;
}
return n;
};
const QImage left = SymbolTextPlacement::icon(Qt::AlignLeft | Qt::AlignVCenter).pixmap(24, 24).toImage();
const QImage right = SymbolTextPlacement::icon(Qt::AlignRight | Qt::AlignVCenter).pixmap(24, 24).toImage();
const QImage above = SymbolTextPlacement::icon(Qt::AlignHCenter | Qt::AlignTop).pixmap(24, 24).toImage();
check(dark(left, QRect(0, 8, 7, 8)) > 10 && dark(left, QRect(17, 0, 7, 24)) == 0, "the icon for left has its bars left of the symbol");
check(dark(right, QRect(17, 8, 7, 8)) > 10 && dark(right, QRect(0, 0, 7, 24)) == 0, "the icon for right has them right of it");
check(dark(above, QRect(6, 0, 12, 7)) > 10 && dark(above, QRect(0, 17, 24, 7)) == 0, "the icon for above has them above it");
//All nine side by side, to look at
QImage sheet(3 * 52, 3 * 52, QImage::Format_ARGB32);
sheet.fill(Qt::white);
QPainter p(&sheet);
const Qt::Alignment nine[] = {
Qt::AlignLeft | Qt::AlignTop, Qt::AlignHCenter | Qt::AlignTop, Qt::AlignRight | Qt::AlignTop,
Qt::AlignLeft | Qt::AlignVCenter, Qt::AlignCenter, Qt::AlignRight | Qt::AlignVCenter,
Qt::AlignLeft | Qt::AlignBottom, Qt::AlignHCenter | Qt::AlignBottom, Qt::AlignRight | Qt::AlignBottom};
for (int i = 0; i < 9; ++i)
p.drawPixmap((i % 3) * 52 + 2, (i / 3) * 52 + 2, SymbolTextPlacement::icon(nine[i]).pixmap(48, 48));
p.end();
if (argc > 3) sheet.save(QString::fromLocal8Bit(argv[3]) + "/icons.png");
std::puts("PASS");
}
catch (const std::exception &error)