ultimatepp/uppsrc/RichEdit/DiagramMouse.cpp
2025-07-27 09:35:53 +02:00

398 lines
No EOL
7.8 KiB
C++

#include "RichEdit.h"
namespace Upp {
void DiagramEditor::Map(Point& p)
{
p = (Pointf)p / GetZoom() + (Pointf)(Point)sb;
}
Point DiagramEditor::GetSizeHandle(Point p) const
{
Point h = { 0, 0 };
Size sz = data.GetSize();
if(abs(sz.cx - p.x) < 8)
h.x = 1;
if(abs(sz.cy - p.y) < 8)
h.y = 1;
return h;
}
Point DiagramEditor::GetHandle(int i, Point p) const
{ // -1 top/left, 1 right/botom
Point h(0, 0);
if(i >= 0) {
const DiagramItem& m = data.item[i];
if(m.IsLine()) {
if(Distance(m.pt[0], p) < 6)
return Point(-1, -1);
if(Distance(m.pt[1], p) < 6)
return Point(1, 1);
}
else {
Rect r = m.GetRect();
Rect rr = r.Inflated(5);
r.Deflate(min(10, r.GetWidth() / 2), min(10, r.GetHeight() / 2));
if(rr.Contains(p)) {
if(p.y < r.top)
h.y = -1;
if(p.y > r.bottom)
h.y = 1;
if(p.x < r.left)
h.x = -1;
if(p.x > r.right)
h.x = 1;
}
}
}
return h;
}
int DiagramEditor::FindItem(Point p) const
{
int mini = -1;
double mina = INT_MAX;
for(int i = data.item.GetCount() - 1; i >= 0; i--) {
const DiagramItem& m = data.item[i];
Rectf r = m.GetRect();
if(m.IsClick(p) || m.IsTextClick(p)) {
double a = m.IsLine() ? 0 : r.Width() * r.Height();
if(a < mina) {
mina = a;
mini = i;
}
}
}
return mini;
}
Image DiagramEditor::CursorImage(Point p, dword keyflags)
{
Map(p);
/*
for(int i = 0; i < data.item.GetCount(); i++)
if(data.item[i].IsTextClick(p))
return Image::IBeam();
*/
Point h = GetSizeHandle(p);
if(h.x && h.y)
return Image::SizeBottomRight();
if(h.x)
return Image::SizeHorz();
if(h.y)
return Image::SizeVert();
int i = FindItem(p);
h = HasCapture() ? draghandle : IsCursor() ? GetHandle(cursor, p) : Null;
if(IsNull(h))
return Image::Arrow();
if(HasCapture() && i >= 0 && data.item[i].IsLine())
return Image::Arrow();
int m = h.x * h.y;
if((h.x || h.y) && i >= 0 && data.item[i].IsLine())
return Image::SizeAll();
if(m > 0)
return Image::SizeBottomRight();
if(m < 0)
return Image::SizeBottomLeft();
if(h.x)
return Image::SizeHorz();
if(h.y)
return Image::SizeVert();
return Image::Arrow();
}
void DiagramEditor::LeftDouble(Point p, dword keyflags)
{
if(IsCursor() && !(keyflags & K_CTRL))
StartText();
}
void DiagramEditor::Grid(int shape, Point& p)
{
p = shape == DiagramItem::SHAPE_LINE ? p / 8 * 8 : p / 16 * 16;
}
void DiagramEditor::LeftDown(Point p, dword keyflags)
{
moving = false;
conns.Clear();
Map(p);
FinishText();
dragstart = dragcurrent = p;
SetCapture();
sizehandle = GetSizeHandle(p);
if(sizehandle.x || sizehandle.y)
return;
if(tool >= 0) {
KillCursor();
DiagramItem& m = AddItem(tl[tool].shape);
m = tl[tool];
Grid(m, p);
m.pt[0] = m.pt[1] = p;
m.FixPosition();
draghandle = Point(1, 1);
return;
}
if(IsCursor()) {
Point h = GetHandle(cursor, p);
if(h.x || h.y) {
draghandle = h;
Sync();
PrepareConns();
return;
}
}
if(sel.GetCount() == 1 && !(keyflags & K_CTRL)) {
sel.Clear();
cursor = -1;
}
int i = FindItem(p);
if(i >= 0) {
if((keyflags & K_CTRL) && sel.Find(i) >= 0) {
sel.RemoveKey(i);
if(sel.GetCount())
SetCursor(sel.Top());
else
KillCursor();
}
else
SetCursor(i);
if(IsCursor()) {
dragfrom = GetCursorRect();
sdragfrom.SetCount(sel.GetCount());
for(int i = 0; i < sel.GetCount(); i++)
sdragfrom[i] = data.item[sel[i]];
PrepareConns();
draghandle = Null;
Point h = GetHandle(cursor, p);
if(h.x || h.y)
draghandle = h;
}
}
else {
if(!(keyflags & K_CTRL)) {
sel.Clear();
SetCursor(-1);
}
doselection = true;
}
Sync();
}
void DiagramEditor::MouseMove(Point p, dword keyflags)
{
Map(p);
if(HasCapture() && doselection) { // do rectangular selection
dragcurrent = p;
Rect r(dragstart, dragcurrent);
r.Normalize();
sel.Clear();
KillCursor();
for(int i = 0; i < data.item.GetCount(); i++)
if(r.Contains(data.item[i].pt[0]) && r.Contains(data.item[i].pt[1])) {
sel.FindAdd(i);
SetCursor(i);
}
Sync();
return;
}
if(HasCapture() && (sizehandle.x || sizehandle.y)) {
if(IsNull(data.size))
data.size = data.GetSize();
if(sizehandle.x)
data.size.cx = p.x;
if(sizehandle.y)
data.size.cy = p.y;
Sync();
return;
}
if(HasCapture() && IsCursor() && (moving || Distance(dragstart, p) >= 8)) {
moving = true;
DiagramItem& m = CursorItem();
Grid(m, p);
if(IsNull(draghandle)) { // move selection
Rectf to = dragfrom.Offseted(p - dragstart);
Pointf tp = to.TopLeft();
if(grid)
tp = (Point)tp / 16 * 16;
Sizef sz = to.GetSize();
m.pt[0] = tp;
m.pt[1] = tp + sz;
Pointf offset = tp - dragfrom.TopLeft();
for(int i = 0; i < sel.GetCount(); i++) {
int ii = sel[i];
if(ii >= 0 && ii < data.item.GetCount() && i < sdragfrom.GetCount()) {
(Point2 &)data.item[ii] = sdragfrom[i].Offseted(offset);
data.item[ii].FixPosition();
}
}
}
else {
auto Do = [](int h, double& a1, double& a2, double a) {
if(h)
(h < 0 ? a1 : a2) = a;
};
Do(draghandle.x, m.pt[0].x, m.pt[1].x, p.x);
Do(draghandle.y, m.pt[0].y, m.pt[1].y, p.y);
}
m.FixPosition();
UseConns();
Sync();
return;
}
}
void DiagramEditor::LeftUp(Point, dword)
{
moving = doselection = false;
tool = -1;
conns.Clear();
Sync();
Commit();
}
void DiagramEditor::RightDown(Point p, dword keyflags)
{
Map(p);
auto PopPaint = [=](Draw& w, const Image& m, bool sel) {
int x = DPI(2);
int y = DPI(1);
if(sel)
w.DrawImage(x, y, m, SColorHighlightText());
else
w.DrawImage(x, y, m);
};
FinishText();
int ii = FindItem(p);
if(ii >= 0) {
DiagramItem& m = data.item[ii];
if(m.IsLine()) {
SetCursor(ii);
Point h = GetHandle(cursor, p);
if(h.x) {
int i = h.x > 0;
ColumnPopUp menu;
menu.count = DiagramItem::CAP_COUNT;
menu.columns = 3;
menu.isz = IconSz() + Size(DPI(4), DPI(4));
menu.WhenPaintItem = [=](Draw& w, Size isz, int ii, bool sel) {
PopPaint(w, i == 0 ? CapIcon(ii, 0) : CapIcon(0, ii), sel);
};
int cap = menu.Execute();
if(cap < 0)
return;
m.cap[i] = cap;
GetAttrs();
Sync();
return;
}
if(m.IsClick(p)) {
ColumnPopUp menu;
menu.count = DiagramItem::DASH_COUNT;
menu.columns = 4;
menu.isz = IconSz() + Size(DPI(4), DPI(4));
menu.WhenPaintItem = [=](Draw& w, Size isz, int ii, bool sel) {
PopPaint(w, DashIcon(ii), sel);
};
int dash = menu.Execute();
if(dash < 0)
return;
m.dash = dash;
GetAttrs();
Sync();
return;
}
}
}
ColumnPopUp shape;
shape.count = DiagramItem::SHAPE_COUNT;
shape.columns = 3;
shape.isz = IconSz() + Size(DPI(4), DPI(4));
shape.WhenPaintItem = [=](Draw& w, Size isz, int ii, bool sel) {
PopPaint(w, ii == DiagramItem::SHAPE_SVGPATH ? DiagramImg::FontSvg() : ShapeIcon(ii), sel);
};
tool = -1;
int si = shape.Execute();
if(si < 0)
return;
Sizef size;
String svgpath;
if(si == DiagramItem::SHAPE_SVGPATH) {
svgpath = SelectFontSymbolSvg(size);
if(IsNull(svgpath))
return;
}
CancelSelection();
Point p0 = p;
Grid(si, p);
Pointf cp = Null; // connect line with nearest connection point
if(si == DiagramItem::SHAPE_LINE) {
double mind = DBL_MAX;
for(const DiagramItem& m : data.item)
for(Pointf c : m.GetConnections()) {
double d = Squared(c - (Pointf)p0);
if(d < mind) {
cp = c;
mind = d;
}
}
}
DiagramItem& m = AddItem(si);
if(IsNull(cp)) {
m.pt[0] = p;
m.pt[1] = p + Point(128, 64);
}
else {
m.pt[0] = cp;
m.pt[1] = p;
}
m.shape = si; // shape must be set before SetAttrs to avoid Normalise
m.data = svgpath;
m.size = size;
if(si == DiagramItem::SHAPE_SVGPATH) {
m.ink = Null;
m.paper = Black();
m.pt[1] = m.pt[0] + size;
SetAttrs(ATTR_ALL & ~(ATTR_SHAPE|ATTR_PAPER|ATTR_INK));
}
else
SetAttrs(ATTR_ALL & ~ATTR_SHAPE);
Sync();
}
void DiagramEditor::RightUp(Point, dword keyflags)
{
Commit();
}
}