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Fixed caps

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This commit is contained in:
Mirek Fidler 2025-09-16 09:48:39 +02:00
parent cf7e36fa11
commit 0e8a1acbb2
1 changed files with 75 additions and 55 deletions
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130
uppsrc/RichText/DiagramShape.cpp
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@ -103,72 +103,92 @@ void DiagramItem::Paint(Painter& w, const Diagram& diagram, dword style, const I
Pointf v = size;
double d = Length(v);
v = Upp::Normalize(v);
Pointf a1 = pos;
Pointf a2 = pos + size;
int lim = 4 * width;
if(d > 4 * width) { // enough length to have caps
if(findarg(cap[0], CAP_ARROW, CAP_DIM) >= 0)
a1 += v * 4 * width;
if(findarg(cap[1], CAP_ARROW, CAP_DIM) >= 0)
a2 -= v * 4 * width;
}
if(d > 12 * width) { // enough length to have caps
if(findarg(cap[0], CAP_ARROWL, CAP_DIML) >= 0) {
a1 += v * 12 * width;
lim = 12 * width;
}
if(findarg(cap[1], CAP_ARROWL, CAP_DIML) >= 0) {
a2 -= v * 12 * width;
lim = 12 * width;
auto CapDef = [&](int i, double& reserve, double& reduce) {
reserve = 0;
reduce = 0;
switch(cap[i]) {
case CAP_DIM:
case CAP_ARROW:
reserve = reduce = 4 * width;
break;
case CAP_DISC:
case CAP_CIRCLE:
reserve = 1.5 * width;
break;
case CAP_DIML:
case CAP_ARROWL:
reserve = reduce = 12 * width;
break;
case CAP_DISCL:
case CAP_CIRCLEL:
reserve = 2.5 * width;
break;
}
};
bool docap[2];
double reserve, reduce;
double dd = d;
CapDef(0, reserve, reduce);
docap[0] = dd > reserve;
if(docap[0]) {
a1 += v * reduce;
dd -= reserve;
}
CapDef(1, reserve, reduce);
docap[1] = dd > reserve;
if(docap[1])
a2 -= v * reduce;
w.Move(a1).Line(a2);
DoDash();
Stroke();
Pointf o = Orthogonal(v);
if(d > lim) {
auto PaintCap = [&](int k, Pointf p, Pointf a) {
Pointf oo = max(3.0, width * 2) * o;
Pointf ool = max(6.0, width * 4) * o;
switch(k) {
case CAP_NONE:
w.Circle(p, width / 2).Fill(ink);
break;
case CAP_T:
w.Move(p - 2 * oo).Line(p + 2 * oo).Stroke(1, ink);
break;
case CAP_DIM:
w.Move(p - 2 * oo).Line(p + 2 * oo).Stroke(1, ink);
case CAP_ARROW:
w.Move(p).Line(a + oo).Line(a - oo).Fill(ink);
break;
case CAP_DISC:
w.Circle(p, 4 + width / 2).Fill(ink);
break;
case CAP_CIRCLE:
w.Circle(p, 4 + width / 2).Fill(paper).Stroke(1, ink);
break;
case CAP_TL:
w.Move(p - 2 * ool).Line(p + 2 * ool).Stroke(1, ink);
break;
case CAP_DIML:
w.Move(p - 2 * ool).Line(p + 2 * ool).Stroke(1, ink);
case CAP_ARROWL:
w.Move(p).Line(a + ool).Line(a - ool).Fill(ink);
break;
case CAP_DISCL:
w.Circle(p, 7 + width / 2).Fill(ink);
break;
case CAP_CIRCLEL:
w.Circle(p, 7 + width / 2).Fill(paper).Stroke(1, ink);
break;
}
};
auto PaintCap = [&](int k, Pointf p, Pointf a) {
Pointf oo = max(3.0, width * 2) * o;
Pointf ool = max(6.0, width * 4) * o;
switch(k) {
case CAP_NONE:
w.Circle(p, width / 2).Fill(ink);
break;
case CAP_T:
w.Move(p - 2 * oo).Line(p + 2 * oo).Stroke(1, ink);
break;
case CAP_DIM:
w.Move(p - 2 * oo).Line(p + 2 * oo).Stroke(1, ink);
case CAP_ARROW:
w.Move(p).Line(a + oo).Line(a - oo).Fill(ink);
break;
case CAP_DISC:
w.Circle(p, 1.5 * width).Fill(ink);
break;
case CAP_CIRCLE:
w.Circle(p, 1.5 * width).Fill(paper).Stroke(1, ink);
break;
case CAP_TL:
w.Move(p - 2 * ool).Line(p + 2 * ool).Stroke(1, ink);
break;
case CAP_DIML:
w.Move(p - 2 * ool).Line(p + 2 * ool).Stroke(1, ink);
case CAP_ARROWL:
w.Move(p).Line(a + ool).Line(a - ool).Fill(ink);
break;
case CAP_DISCL:
w.Circle(p, 2.5 * width).Fill(ink);
break;
case CAP_CIRCLEL:
w.Circle(p, 2.5 * width).Fill(paper).Stroke(1, ink);
break;
}
};
if(docap[0])
PaintCap(cap[0], pos, a1 + v);
if(docap[1])
PaintCap(cap[1], pos + size, a2 - v);
}
int cx = (int)d;
int txt_cy = txt.GetHeight(pi.zoom, cx);