openclonk/src/editor/C4ConsoleQtShapes.cpp

1830 lines
59 KiB
C++

/*
* OpenClonk, http://www.openclonk.org
*
* Copyright (c) 2001-2009, RedWolf Design GmbH, http://www.clonk.de/
* Copyright (c) 2013, The OpenClonk Team and contributors
*
* Distributed under the terms of the ISC license; see accompanying file
* "COPYING" for details.
*
* "Clonk" is a registered trademark of Matthes Bender, used with permission.
* See accompanying file "TRADEMARK" for details.
*
* To redistribute this file separately, substitute the full license texts
* for the above references.
*/
/* Editable shapes in the viewports (like e.g. AI guard range rectangles) */
#include "C4Include.h"
#include "graphics/C4FacetEx.h"
#include "graphics/C4Draw.h"
#include "object/C4Object.h"
// See C4ConsoleQt.cpp on include order
#include "editor/C4Console.h"
#include "editor/C4ConsoleQtState.h"
#include "editor/C4ConsoleQtShapes.h"
#include "editor/C4ConsoleQtPropListViewer.h" // for C4PropertyPath
/* Generic shape */
C4ConsoleQtShape::C4ConsoleQtShape(C4Object *for_obj, C4PropList *props, const class C4PropertyDelegateShape *parent_delegate, class C4ConsoleQtShapes *shape_list)
: is_relative(true), dragging_border(-1), selected_border(-1), border_color(0xffff0000), parent_delegate(parent_delegate), shape_list(shape_list)
{
rel_obj.SetPropList(for_obj);
if (props)
{
is_relative = props->GetPropertyBool(P_Relative, is_relative);
border_color = props->GetPropertyInt(P_Color) | 0xff000000;
properties = C4VPropList(props);
}
}
uint32_t C4ConsoleQtShape::GetBorderColor(int32_t border_index, bool dragging_border_is_bitmask, uint32_t default_color) const
{
// Return shape color, or dragged border color if index is the border currently being dragged
if (IsDragging())
if ((dragging_border == border_index) || (dragging_border_is_bitmask && (dragging_border & border_index)))
return 0xffffffff;
return default_color ? default_color : border_color;
}
int32_t C4ConsoleQtShape::AbsX(int32_t rel_x) const
{
if (is_relative)
{
C4Object *obj = rel_obj.getObj();
if (obj) rel_x += obj->GetX();
}
return rel_x;
}
int32_t C4ConsoleQtShape::AbsY(int32_t rel_y) const
{
if (is_relative)
{
C4Object *obj = rel_obj.getObj();
if (obj) rel_y += obj->GetY();
}
return rel_y;
}
void C4ConsoleQtShape::StopDragging()
{
// Reset drag state and emit signal to send updated value
dragging_border = -1;
emit ShapeDragged();
}
bool C4ConsoleQtShape::Select(int32_t border)
{
selected_border = border;
emit BorderSelectionChanged();
return true;
}
void C4ConsoleQtShape::ResetSelection()
{
selected_border = -1;
emit BorderSelectionChanged();
}
/* Rectangular shape*/
C4ConsoleQtRect::C4ConsoleQtRect(C4Object *for_obj, C4PropList *props, const class C4PropertyDelegateShape *parent_delegate, class C4ConsoleQtShapes *shape_list)
: C4ConsoleQtShape(for_obj, props, parent_delegate, shape_list), left(0), top(0), right(10), bottom(10), store_as_proplist(false), properties_lowercase(false)
{
// Def props
if (props)
{
C4String *storage = props->GetPropertyStr(P_Storage);
if (storage)
{
if (storage == &::Strings.P[P_proplist])
properties_lowercase = store_as_proplist = true;
else if (storage == &::Strings.P[P_Proplist])
store_as_proplist = true;
}
}
}
bool C4ConsoleQtRect::IsHit(int32_t x, int32_t y, int32_t hit_range, Qt::CursorShape *drag_cursor, int32_t *drag_border, bool shift_down, bool ctrl_down)
{
// Current border pos
int32_t left = AbsX(this->left), top = AbsY(this->top);
int32_t right = AbsX(this->right), bottom = AbsY(this->bottom);
// Distance to each border
int32_t dleft = Abs<int32_t>(left - x);
int32_t dtop = Abs<int32_t>(top - y);
int32_t dright = Abs<int32_t>(right - x);
int32_t dbottom = Abs<int32_t>(bottom - y);
// In box at all?
if (x < left - hit_range || y < top - hit_range || x > right + hit_range || y > bottom + hit_range)
return false;
// Border hit?
bool hit_left = (dleft <= hit_range && dleft < dright);
bool hit_top = (dtop <= hit_range && dtop < dbottom);
bool hit_right = (!hit_left && dright <= hit_range);
bool hit_bottom = (!hit_top && dbottom <= hit_range);
// Compose cursor and drag border
int32_t idrag_border = (hit_left * CNAT_Left) + (hit_top * CNAT_Top) + (hit_right * CNAT_Right) + (hit_bottom * CNAT_Bottom);
if (idrag_border) *drag_border = idrag_border;
if (hit_left || hit_right)
if (hit_top || hit_bottom)
*drag_cursor = (hit_left == hit_top) ? Qt::SizeFDiagCursor : Qt::SizeBDiagCursor;
else
*drag_cursor = Qt::SizeHorCursor;
else if (hit_top || hit_bottom)
*drag_cursor = Qt::SizeVerCursor;
return !!idrag_border;
}
void C4ConsoleQtRect::Draw(class C4TargetFacet &cgo, float line_width)
{
float left = float(AbsX(this->left)) + cgo.X - cgo.TargetX;
float top = float(AbsY(this->top)) + cgo.Y - cgo.TargetY;
float right = float(AbsX(this->right)) + cgo.X - cgo.TargetX;
float bottom = float(AbsY(this->bottom)) + cgo.Y - cgo.TargetY;
pDraw->DrawLineDw(cgo.Surface, left, top, right, top, GetBorderColor(CNAT_Top, true), line_width);
pDraw->DrawLineDw(cgo.Surface, right, top, right, bottom, GetBorderColor(CNAT_Right, true), line_width);
pDraw->DrawLineDw(cgo.Surface, right, bottom, left, bottom, GetBorderColor(CNAT_Bottom, true), line_width);
pDraw->DrawLineDw(cgo.Surface, left, bottom, left, top, GetBorderColor(CNAT_Left, true), line_width);
}
void C4ConsoleQtRect::Drag(int32_t x, int32_t y, int32_t dx, int32_t dy, int32_t hit_range, Qt::CursorShape *drag_cursor)
{
if (dragging_border & CNAT_Left) left += dx;
if (dragging_border & CNAT_Top) top += dy;
if (dragging_border & CNAT_Right) right += dx;
if (dragging_border & CNAT_Bottom) bottom += dy;
if (left > right) std::swap(left, right);
if (top > bottom) std::swap(top, bottom);
}
void C4ConsoleQtRect::SetValue(const C4Value &val)
{
// Expect rect to be given as proplist with properties X, Y, Wdt, Hgt or array with elements [left,top,width,height]
if (store_as_proplist)
{
C4PropList *vprops = val.getPropList();
if (vprops)
{
left = vprops->GetPropertyInt(properties_lowercase ? P_x : P_X);
top = vprops->GetPropertyInt(properties_lowercase ? P_y : P_Y);
right = left + vprops->GetPropertyInt(properties_lowercase ? P_wdt : P_Wdt) - 1;
bottom = top + vprops->GetPropertyInt(properties_lowercase ? P_hgt : P_Hgt) - 1;
}
}
else
{
C4ValueArray *varr = val.getArray();
if (varr && varr->GetSize() >= 4)
{
left = varr->GetItem(0).getInt();
top = varr->GetItem(1).getInt();
right = left + varr->GetItem(2).getInt() - 1; // right/bottom borders are drawn inclusively
bottom = top + varr->GetItem(3).getInt() - 1;
}
}
}
C4Value C4ConsoleQtRect::GetValue() const
{
// Return array or proplist: Convert left/top/right/bottom (inclusive) to left/top/width/height
if (store_as_proplist)
{
C4PropList *pos_proplist = new C4PropListScript();
pos_proplist->SetProperty(properties_lowercase ? P_x : P_X, C4VInt(left));
pos_proplist->SetProperty(properties_lowercase ? P_y : P_Y, C4VInt(top));
pos_proplist->SetProperty(properties_lowercase ? P_wdt : P_Wdt, C4VInt(right - left + 1));
pos_proplist->SetProperty(properties_lowercase ? P_hgt : P_Hgt, C4VInt(bottom - top + 1));
return C4VPropList(pos_proplist);
}
else
{
C4ValueArray *pos_array = new C4ValueArray(4);
pos_array->SetItem(0, C4VInt(left));
pos_array->SetItem(1, C4VInt(top));
pos_array->SetItem(2, C4VInt(right - left + 1));
pos_array->SetItem(3, C4VInt(bottom - top + 1));
return C4VArray(pos_array);
}
}
/* Circle shape */
C4ConsoleQtCircle::C4ConsoleQtCircle(class C4Object *for_obj, C4PropList *props, const class C4PropertyDelegateShape *parent_delegate, class C4ConsoleQtShapes *shape_list)
: C4ConsoleQtShape(for_obj, props, parent_delegate, shape_list), radius(10), cx(0), cy(0), can_move_center(false)
{
if (props)
{
can_move_center = props->GetPropertyBool(P_CanMoveCenter);
}
}
bool C4ConsoleQtCircle::IsHit(int32_t x, int32_t y, int32_t hit_range, Qt::CursorShape *drag_cursor, int32_t *drag_border, bool shift_down, bool ctrl_down)
{
// Get relative circle center pos
x -= AbsX(cx);
y -= AbsY(cy);
int32_t r = x*x + y*y;
// Is on circle border? (Higher priority than center to allow resizing circle from 0 radius)
if (Inside<int32_t>(r, (radius - hit_range)*(radius - hit_range), (radius + hit_range)*(radius + hit_range)))
{
// Cursor by position on 60 deg circle segments
if (x * 58 / 100 / (y+!y)) // tan(30) ~= 0.58
*drag_cursor = Qt::CursorShape::SizeHorCursor;
else if (y * 58 / 100 / (x+!x))
*drag_cursor = Qt::CursorShape::SizeVerCursor;
else if (x*y > 0)
*drag_cursor = Qt::CursorShape::SizeFDiagCursor;
else
*drag_cursor = Qt::CursorShape::SizeBDiagCursor;
*drag_border = 0;
return true;
}
// Circle center?
if (can_move_center && r <= hit_range*hit_range)
{
*drag_cursor = Qt::CursorShape::SizeAllCursor;
*drag_border = 1;
return true;
}
return false;
}
void C4ConsoleQtCircle::Draw(class C4TargetFacet &cgo, float line_width)
{
// Circle
pDraw->DrawCircleDw(cgo.Surface, AbsX(cx) + cgo.X - cgo.TargetX, AbsY(cy) + cgo.Y - cgo.TargetY, radius, GetBorderColor(0, false), line_width);
// Center if moveable
if (can_move_center)
pDraw->DrawCircleDw(cgo.Surface, AbsX(cx) + cgo.X - cgo.TargetX, AbsY(cy) + cgo.Y - cgo.TargetY, line_width*3, GetBorderColor(1, false), line_width);
}
void C4ConsoleQtCircle::C4ConsoleQtCircle::Drag(int32_t x, int32_t y, int32_t dx, int32_t dy, int32_t hit_range, Qt::CursorShape *drag_cursor)
{
if (dragging_border == 0)
{
x -= AbsX(cx);
y -= AbsY(cy);
radius = int32_t(sqrt(double(x*x + y*y)));
}
else if (dragging_border == 1)
{
cx += dx;
cy += dy;
}
}
void C4ConsoleQtCircle::SetValue(const C4Value &val)
{
// If center is moveable, expect value as [radius, center_x, center_y]
// Otherwise just radius
if (can_move_center)
{
C4ValueArray *aval = val.getArray();
if (aval && aval->GetSize() == 3)
{
radius = aval->GetItem(0).getInt();
cx = aval->GetItem(1).getInt();
cy = aval->GetItem(2).getInt();
}
}
else
{
radius = val.getInt();
}
}
C4Value C4ConsoleQtCircle::GetValue() const
{
// Return single value for non-center-adjustable circles; return [radius, cx, cy] otherwise
if (can_move_center)
{
C4ValueArray *pos_array = new C4ValueArray(3);
pos_array->SetItem(0, C4VInt(radius));
pos_array->SetItem(1, C4VInt(cx));
pos_array->SetItem(2, C4VInt(cy));
return C4VArray(pos_array);
}
else
{
return C4VInt(radius);
}
}
/* Point shape */
C4ConsoleQtPoint::C4ConsoleQtPoint(class C4Object *for_obj, C4PropList *props, const class C4PropertyDelegateShape *parent_delegate, class C4ConsoleQtShapes *shape_list)
: C4ConsoleQtShape(for_obj, props, parent_delegate, shape_list), cx(0), cy(0)
{
if (props)
{
horizontal_fix = props->GetPropertyBool(P_HorizontalFix);
vertical_fix = props->GetPropertyBool(P_VerticalFix);
}
}
bool C4ConsoleQtPoint::IsHit(int32_t x, int32_t y, int32_t hit_range, Qt::CursorShape *drag_cursor, int32_t *drag_border, bool shift_down, bool ctrl_down)
{
// Get relative circle center pos
x -= AbsX(cx);
y -= AbsY(cy);
int32_t r = x*x + y*y;
// Hits point?
if (r <= hit_range*hit_range*6)
{
if (horizontal_fix && vertical_fix) *drag_cursor = Qt::CursorShape::ForbiddenCursor;
if (horizontal_fix && !vertical_fix) *drag_cursor = Qt::CursorShape::SizeVerCursor;
if (!horizontal_fix && vertical_fix) *drag_cursor = Qt::CursorShape::SizeHorCursor;
if (!horizontal_fix && !vertical_fix) *drag_cursor = Qt::CursorShape::SizeAllCursor;
*drag_border = 0;
return true;
}
return false;
}
void C4ConsoleQtPoint::Draw(class C4TargetFacet &cgo, float line_width)
{
// Circle with cross inside
uint32_t clr = GetBorderColor(0, false);
float d = line_width * 3;
float dc = sqrtf(2) * d;
int32_t x = AbsX(cx) + cgo.X - cgo.TargetX;
int32_t y = AbsY(cy) + cgo.Y - cgo.TargetY;
if (horizontal_fix && !vertical_fix)
{
pDraw->DrawLineDw(cgo.Surface, x, y - d, x, y + d, clr, line_width);
pDraw->DrawLineDw(cgo.Surface, x - d / 2, y - d, x + d / 2, y - d, clr, line_width);
pDraw->DrawLineDw(cgo.Surface, x - d / 2, y + d, x + d / 2, y + d, clr, line_width);
}
else if (!horizontal_fix && vertical_fix)
{
pDraw->DrawLineDw(cgo.Surface, x - d, y, x + d, y, clr, line_width);
pDraw->DrawLineDw(cgo.Surface, x - d, y - d / 2, x - d, y + d / 2, clr, line_width);
pDraw->DrawLineDw(cgo.Surface, x + d, y - d / 2, x + d, y + d / 2, clr, line_width);
}
else
{
pDraw->DrawLineDw(cgo.Surface, x - d, y - d, x + d, y + d, clr, line_width);
if (!horizontal_fix)
{
pDraw->DrawLineDw(cgo.Surface, x - d, y + d, x + d, y - d, clr, line_width);
}
pDraw->DrawCircleDw(cgo.Surface, x, y, dc, clr, line_width);
}
}
void C4ConsoleQtPoint::Drag(int32_t x, int32_t y, int32_t dx, int32_t dy, int32_t hit_range, Qt::CursorShape *drag_cursor)
{
if (!horizontal_fix) cx += dx;
if (!vertical_fix) cy += dy;
}
void C4ConsoleQtPoint::SetValue(const C4Value &val)
{
// Expect value as [x,y]
C4ValueArray *aval = val.getArray();
if (aval && aval->GetSize() == 2)
{
cx = aval->GetItem(0).getInt();
cy = aval->GetItem(1).getInt();
}
}
C4Value C4ConsoleQtPoint::GetValue() const
{
// Return [cx, cy]
C4ValueArray *pos_array = new C4ValueArray(2);
pos_array->SetItem(0, C4VInt(cx));
pos_array->SetItem(1, C4VInt(cy));
return C4VArray(pos_array);
}
/* Graph */
bool C4ConsoleQtGraph::Edge::connects_to(int32_t vertex_index) const
{
// Check if this edge connects to given vertex
return vertex_indices[0] == vertex_index || vertex_indices[1] == vertex_index;
}
bool C4ConsoleQtGraph::Edge::connects_to(int32_t vertex_index, int32_t *idx) const
{
// Check if this edge connects to given vertex. If so, put vertex_index index into *idx
assert(idx);
if (vertex_indices[0] == vertex_index)
{
*idx = 0;
}
else if (vertex_indices[1] == vertex_index)
{
*idx = 1;
}
else
{
return false;
}
return true;
}
void C4ConsoleQtGraph::GraphData::SetVerticesValue(const C4ValueArray *vvertices)
{
vertices.clear();
if (vvertices)
{
vertices.reserve(vvertices->GetSize());
for (int32_t i = 0; i < vvertices->GetSize(); ++i)
{
Vertex vtx;
C4PropList *vvertex = vvertices->GetItem(i).getPropList();
if (!vvertex) continue;
vtx.x = vvertex->GetPropertyInt(P_X);
vtx.y = vvertex->GetPropertyInt(P_Y);
if (vvertex->HasProperty(&::Strings.P[P_Color])) vtx.color = vvertex->GetPropertyInt(P_Color) | 0xff000000;
vertices.push_back(vtx);
}
}
}
void C4ConsoleQtGraph::GraphData::SetEdgesValue(const C4ValueArray *vedges)
{
edges.clear();
if (vedges)
{
edges.reserve(vedges->GetSize());
for (int32_t i = 0; i < vedges->GetSize(); ++i)
{
C4ValueArray *vedgevertices = nullptr;
C4PropList *vedgeprops = nullptr;
vedgeprops = vedges->GetItem(i).getPropList();
if (vedgeprops)
{
vedgevertices = vedgeprops->GetPropertyArray(P_Vertices);
}
if (vedgevertices && vedgevertices->GetSize() >= 2)
{
Edge edge;
edge.vertex_indices[0] = vedgevertices->GetItem(0).getInt();
edge.vertex_indices[1] = vedgevertices->GetItem(1).getInt();
// Ignore invalid edge definitions
if (edge.vertex_indices[0] < 0 || edge.vertex_indices[1] < 0) continue;
if (edge.vertex_indices[0] >= vertices.size() || edge.vertex_indices[1] >= vertices.size()) continue;
// Optional properties
if (vedgeprops->HasProperty(&::Strings.P[P_Color])) edge.color = vedgeprops->GetPropertyInt(P_Color) | 0xff000000;
edge.line_thickness = vedgeprops->GetPropertyInt(P_LineWidth, edge.line_thickness);
edges.push_back(edge);
}
}
}
}
C4ValueArray *C4ConsoleQtGraph::GraphData::GetVerticesValue() const
{
// Store vertices
C4ValueArray *vvertices = new C4ValueArray();
vvertices->SetSize(vertices.size());
int32_t i = 0;
for (const Vertex &vtx : vertices)
{
C4Value valvtx;
C4PropList *vvtx = C4PropList::New();
vvtx->SetProperty(P_X, C4VInt(vtx.x));
vvtx->SetProperty(P_Y, C4VInt(vtx.y));
if (vtx.color) vvtx->SetProperty(P_Color, C4VInt(vtx.color & 0xffffff));
vvertices->SetItem(i++, C4VPropList(vvtx));
}
return vvertices;
}
C4ValueArray *C4ConsoleQtGraph::GraphData::GetEdgesValue() const
{
C4ValueArray *vedges = new C4ValueArray();
vedges->SetSize(edges.size());
int32_t i = 0;
for (const Edge &edge : edges)
{
C4Value valedge;
C4ValueArray *vedge = new C4ValueArray(2);
vedge->SetItem(0, C4VInt(edge.vertex_indices[0]));
vedge->SetItem(1, C4VInt(edge.vertex_indices[1]));
C4PropList *vedgeprops = C4PropList::New();
vedgeprops->SetProperty(P_Vertices, C4VArray(vedge));
if (edge.color) vedgeprops->SetProperty(P_Color, C4VInt(edge.color & 0xffffff));
if (edge.line_thickness != 1) vedgeprops->SetProperty(P_LineWidth, C4VInt(edge.line_thickness));
vedges->SetItem(i++, C4VPropList(vedgeprops));
}
return vedges;
}
void C4ConsoleQtGraph::GraphData::SetVertexPos(int32_t vertex_index, int32_t new_x, int32_t new_y)
{
// Validity check
if (vertex_index < 0 || vertex_index >= vertices.size()) return;
// Do change
vertices[vertex_index].x = new_x;
vertices[vertex_index].y = new_y;
}
void C4ConsoleQtGraph::GraphData::EditEdge(int32_t edge_index, int32_t change_vertex_index, int32_t new_vertex_index)
{
// Validity check
if (edge_index < 0 || edge_index >= edges.size()) return;
if (new_vertex_index < 0 || new_vertex_index >= vertices.size()) return;
if (change_vertex_index < 0 || change_vertex_index > 1) return;
// No loopback edges
Edge &edge = edges[edge_index];
int32_t other_vertex_index = edge.vertex_indices[!change_vertex_index];
if (new_vertex_index == other_vertex_index) return;
// Do not allow duplicates
for (Edge &check_edge : edges)
{
if (&check_edge != &edge)
{
if (check_edge.connects_to(new_vertex_index) && check_edge.connects_to(other_vertex_index)) return;
}
}
// Perform change
edge.vertex_indices[change_vertex_index] = new_vertex_index;
}
void C4ConsoleQtGraph::GraphData::InsertEdgeBefore(int32_t insert_edge_index, int32_t vertex1, int32_t vertex2)
{
// Validity check
if (insert_edge_index < 0 || insert_edge_index > edges.size()) return;
if (vertex1 < 0 || vertex1 >= vertices.size()) return;
if (vertex2 < 0 || vertex2 >= vertices.size()) return;
// Do not allow duplicates
for (Edge &check_edge : edges)
{
if (check_edge.connects_to(vertex1) && check_edge.connects_to(vertex2)) return;
}
// Insert edge at position in edge list
Edge new_edge;
new_edge.vertex_indices[0] = vertex1;
new_edge.vertex_indices[1] = vertex2;
edges.insert(edges.begin() + insert_edge_index, new_edge);
}
void C4ConsoleQtGraph::GraphData::InsertVertexBefore(int32_t insert_vertex_index, int32_t x, int32_t y)
{
// Validity check
if (insert_vertex_index < 0 || insert_vertex_index > vertices.size()) return;
// Insert new vertex at desired position
Vertex new_vertex;
new_vertex.x = x;
new_vertex.y = y;
vertices.insert(vertices.begin() + insert_vertex_index, new_vertex);
// Update all edges pointing to vertices after this one
for (Edge &edge : edges)
{
for (int32_t &vertex_index : edge.vertex_indices)
{
if (vertex_index >= insert_vertex_index)
{
++vertex_index;
}
}
}
}
void C4ConsoleQtGraph::GraphData::RemoveEdge(int32_t edge_index)
{
// Validity check
if (edge_index < 0 || edge_index >= edges.size()) return;
// Kill the edge
Edge removed_edge = edges[edge_index];
edges.erase(edges.begin() + edge_index);
}
void C4ConsoleQtGraph::GraphData::RemoveVertex(int32_t remove_vertex_index)
{
// Validity vheck
if (remove_vertex_index < 0 || remove_vertex_index >= vertices.size()) return;
// Always keep at least one vertex
if (vertices.size() == 1) return;
assert(remove_vertex_index >= 0 && remove_vertex_index < vertices.size() && vertices.size() >= 2);
// Remove all edges involving this vertex
auto rm_check = [remove_vertex_index](const Edge &edge) { return edge.connects_to(remove_vertex_index); };
edges.erase(std::remove_if(edges.begin(), edges.end(), rm_check), edges.end());
// Remove the vertex itself
vertices.erase(vertices.begin() + remove_vertex_index);
// Because vertex indices changed, update all edges that pointed to higher indices
for (Edge &edge : edges)
{
for (int32_t &vi : edge.vertex_indices)
{
if (vi > remove_vertex_index)
{
--vi;
}
}
}
}
int32_t C4ConsoleQtGraph::GraphData::GetEdgeCountForVertex(int32_t vertex_index) const
{
// Count all edges that connect to the given vertex
auto count_check = [vertex_index](const Edge &edge) { return edge.connects_to(vertex_index); };
return std::count_if(edges.begin(), edges.end(), count_check);
}
void C4ConsoleQtGraph::GraphData::EditGraphValue_SetVertexPos(C4ValueArray *vvertices, int32_t vertex_index, int32_t new_x, int32_t new_y)
{
// Validity check
if (vertex_index < 0 || vertex_index >= vvertices->GetSize()) return;
// Do change
C4PropList *vvertex = vvertices->GetItem(vertex_index).getPropList();
if (!vvertex || vvertex->IsFrozen()) return;
vvertex->SetProperty(P_X, C4VInt(new_x));
vvertex->SetProperty(P_Y, C4VInt(new_y));
}
void C4ConsoleQtGraph::GraphData::EditGraphValue_EditEdge(C4ValueArray *vvertices, C4ValueArray *vedges, int32_t edge_index, int32_t change_vertex_index, int32_t new_vertex_index)
{
// Validity check
if (edge_index < 0 || edge_index >= vedges->GetSize()) return;
if (new_vertex_index < 0 || new_vertex_index >= vvertices->GetSize()) return;
if (change_vertex_index < 0 || change_vertex_index > 1) return;
C4PropList *edge = vedges->GetItem(edge_index).getPropList();
if (!edge) return;
C4ValueArray *edge_vertices = edge->GetPropertyArray(P_Vertices);
if (!edge_vertices || edge_vertices->IsFrozen()) return;
// No loopback edges
int32_t other_vertex_index = edge_vertices->GetItem(!change_vertex_index).getInt();
if (new_vertex_index == other_vertex_index) return;
// Do not allow duplicates
for (int32_t i = 0; i < vedges->GetSize(); ++i)
{
if (i != edge_index)
{
if (EditGraphValue_EdgeConnectsTo(vedges->GetItem(i).getPropList(), other_vertex_index) && EditGraphValue_EdgeConnectsTo(vedges->GetItem(i).getPropList(), new_vertex_index))
{
return;
}
}
}
// Perform change
edge_vertices->SetItem(change_vertex_index, C4VInt(new_vertex_index));
}
void C4ConsoleQtGraph::GraphData::EditGraphValue_InsertEdgeBefore(C4ValueArray *vvertices, C4ValueArray *vedges, int32_t insert_edge_index, int32_t vertex1, int32_t vertex2)
{
// Validity check
if (insert_edge_index < 0 || insert_edge_index > vedges->GetSize()) return;
if (vertex1 < 0 || vertex1 >= vvertices->GetSize()) return;
// Do not allow duplicates
for (int32_t i = 0; i < vedges->GetSize(); ++i)
{
if (EditGraphValue_EdgeConnectsTo(vedges->GetItem(i).getPropList(), vertex1) && EditGraphValue_EdgeConnectsTo(vedges->GetItem(i).getPropList(), vertex2))
{
return;
}
}
// Construct new edge
C4PropList *new_edge = C4PropList::New();
C4ValueArray *new_edge_indices = new C4ValueArray(2);
new_edge_indices->SetItem(0, C4VInt(vertex1));
new_edge_indices->SetItem(1, C4VInt(vertex2));
new_edge->SetProperty(P_Vertices, C4VArray(new_edge_indices));
// Insert edge at position in edge list by moving other edges up
vedges->SetSize(vedges->GetSize() + 1);
for (int32_t i = vedges->GetSize() - 1; i > insert_edge_index; --i)
{
vedges->SetItem(i, vedges->GetItem(i - 1));
}
vedges->SetItem(insert_edge_index, C4VPropList(new_edge));
}
void C4ConsoleQtGraph::GraphData::EditGraphValue_InsertVertexBefore(C4ValueArray *vvertices, C4ValueArray *vedges, int32_t insert_vertex_index, int32_t x, int32_t y)
{
// Validity check
if (insert_vertex_index < 0 || insert_vertex_index > vvertices->GetSize()) return;
// Construct new vertex
C4PropList *new_vertex = C4PropList::New();
new_vertex->SetProperty(P_X, C4VInt(x));
new_vertex->SetProperty(P_Y, C4VInt(y));
// Insert new vertex at desired position by moving other vertices up
vvertices->SetSize(vvertices->GetSize() + 1);
for (int32_t i = vvertices->GetSize() - 1; i > insert_vertex_index; --i)
{
vvertices->SetItem(i, vvertices->GetItem(i - 1));
}
vvertices->SetItem(insert_vertex_index, C4VPropList(new_vertex));
// Update all edges pointing to vertices after this one
if (vedges)
{
for (int32_t i = 0; i < vedges->GetSize(); ++i)
{
C4PropList *edge = vedges->GetItem(i).getPropList();
if (edge)
{
C4ValueArray *edge_vertices = edge->GetPropertyArray(P_Vertices);
if (edge_vertices && edge_vertices->GetSize() >= 2)
{
for (int32_t j = 0; j < 2; ++j)
{
int32_t vertex_index = edge_vertices->GetItem(j).getInt();
if (vertex_index >= insert_vertex_index)
{
edge_vertices->SetItem(j, C4VInt(vertex_index + 1));
}
}
}
}
}
}
}
void C4ConsoleQtGraph::GraphData::EditGraphValue_RemoveEdge(C4ValueArray *vvertices, C4ValueArray *vedges, int32_t edge_index)
{
// Validity check
if (edge_index < 0 || edge_index >= vedges->GetSize()) return;
// Kill the edge
for (int32_t i = edge_index; i < vedges->GetSize() - 1; ++i)
{
vedges->SetItem(i, vedges->GetItem(i + 1));
}
vedges->SetSize(vedges->GetSize() - 1);
}
void C4ConsoleQtGraph::GraphData::EditGraphValue_RemoveVertex(C4ValueArray *vvertices, C4ValueArray *vedges, int32_t remove_vertex_index)
{
// Validity vheck
if (remove_vertex_index < 0 || remove_vertex_index >= vvertices->GetSize()) return;
// Always keep at least one vertex
if (vvertices->GetSize() == 1) return;
// Remove the vertex itself
for (int32_t i = remove_vertex_index; i < vvertices->GetSize() - 1; ++i)
{
vvertices->SetItem(i, vvertices->GetItem(i + 1));
}
vvertices->SetSize(vvertices->GetSize() - 1);
// Edge updates
if (vedges)
{
for (int32_t edge_index = vedges->GetSize(); edge_index >= 0; --edge_index)
{
// Remove all edges involving this vertex and update vertices at higher index because they have been moved down
C4PropList *edge = vedges->GetItem(edge_index).getPropList();
if (edge)
{
C4ValueArray *edge_vertices = edge->GetPropertyArray(P_Vertices);
if (edge_vertices && edge_vertices->GetSize() >= 2)
{
for (int32_t j = 0; j < 2; ++j)
{
int32_t v = edge_vertices->GetItem(j).getInt();
if (v == remove_vertex_index)
{
EditGraphValue_RemoveEdge(vvertices, vedges, edge_index);
break;
}
else if (v > remove_vertex_index)
{
edge_vertices->SetItem(j, C4VInt(v - 1));
}
}
}
}
}
}
}
bool C4ConsoleQtGraph::GraphData::EditGraphValue_EdgeConnectsTo(C4PropList *edge, int32_t vertex_index)
{
// Check if either side of the edge connects to given vertex
if (!edge) return false;
C4ValueArray *edge_vertices = edge->GetPropertyArray(P_Vertices);
if (!edge_vertices || edge_vertices->GetSize() < 2) return false;
return edge_vertices->GetItem(0).getInt() == vertex_index || edge_vertices->GetItem(1).getInt() == vertex_index;
}
C4ConsoleQtGraph::C4ConsoleQtGraph(C4Object *for_obj, C4PropList *props, const class C4PropertyDelegateShape *parent_delegate, class C4ConsoleQtShapes *shape_list)
: C4ConsoleQtShape(for_obj, props, parent_delegate, shape_list)
{
// Def props
if (props)
{
props->GetProperty(P_VertexDelegate, &vertex_delegate);
props->GetProperty(P_EdgeDelegate, &edge_delegate);
allow_vertex_selection = !!vertex_delegate.getPropList();
allow_edge_selection = !!edge_delegate.getPropList();
horizontal_fix = props->GetPropertyBool(P_HorizontalFix);
vertical_fix = props->GetPropertyBool(P_VerticalFix);
structure_fix = props->GetPropertyBool(P_StructureFix);
draw_arrows = props->GetPropertyBool(P_DrawArrows, draw_arrows);
}
}
bool C4ConsoleQtGraph::IsHit(int32_t x, int32_t y, int32_t hit_range, Qt::CursorShape *drag_cursor, int32_t *drag_border, bool shift_down, bool ctrl_down)
{
// Check hit on vertices
int32_t i = 0, best_hit_range = hit_range*hit_range * 6*6;
bool has_hit = false;
for (const Vertex &vtx : graph.vertices)
{
int32_t dx = x - AbsX(vtx.x);
int32_t dy = y - AbsY(vtx.y);
int32_t r = dx*dx + dy*dy;
// Is close to vertex / closer than previous hit?
if (r <= best_hit_range)
{
if (IsVertexHit(i, drag_cursor, shift_down, ctrl_down))
{
*drag_border = VertexToDragBorder(i);
best_hit_range = r;
has_hit = true;
}
}
++i;
}
// Check hit on edge if edge selection is possible
if (!has_hit && (allow_edge_selection || shift_down || ctrl_down))
{
best_hit_range = hit_range*hit_range;
i = 0;
for (const Edge &edge : graph.edges)
{
// Get affected vertices
assert(edge.vertex_indices[0] >= 0 && edge.vertex_indices[1] >= 0);
assert(edge.vertex_indices[0] < graph.vertices.size() && edge.vertex_indices[1] < graph.vertices.size());
const Vertex &v0 = graph.vertices[edge.vertex_indices[0]];
const Vertex &v1 = graph.vertices[edge.vertex_indices[1]];
// Relative edge pos
int32_t dx0 = x - AbsX(v0.x);
int32_t dy0 = y - AbsY(v0.y);
int32_t dx1 = v1.x - v0.x;
int32_t dy1 = v1.y - v0.y;
// Check if within line range
int32_t d = dx0 * dx1 + dy0 * dy1;
if (d > 0 && d < dx1 * dx1 + dy1 * dy1)
{
// Get squared distance from edge
d = dx1 * dy0 - dy1 * dx0;
d = d * d / (dx1 * dx1 + dy1 * dy1);
// In hit range?
if (d <= best_hit_range)
{
if (IsEdgeHit(i, drag_cursor, shift_down, ctrl_down))
*drag_border = EdgeToDragBorder(i);
best_hit_range = d;
has_hit = true;
}
}
++i;
}
}
// Check if structure change is allowed
if (has_hit && (shift_down || ctrl_down) && structure_fix)
{
*drag_cursor = Qt::CursorShape::ForbiddenCursor;
}
else if (*drag_cursor == Qt::CursorShape::SizeAllCursor)
{
// Adjust cursor for constrained movement
if (horizontal_fix && vertical_fix)
{
*drag_cursor = Qt::CursorShape::PointingHandCursor;
}
else if (horizontal_fix)
{
*drag_cursor = Qt::CursorShape::SizeVerCursor;
}
else if (vertical_fix)
{
*drag_cursor = Qt::CursorShape::SizeHorCursor;
}
}
return has_hit;
}
bool C4ConsoleQtGraph::IsVertexHit(int32_t vertex_index, Qt::CursorShape *drag_cursor, bool shift_down, bool ctrl_down)
{
if (shift_down && !ctrl_down)
{
// Insert vertex here
*drag_cursor = Qt::CursorShape::DragCopyCursor;
}
else if (ctrl_down && !shift_down)
{
// Remove this vertex (unless it's the last, which cannot be removed)
if (graph.vertices.size() == 1)
{
*drag_cursor = Qt::CursorShape::ForbiddenCursor;
}
else
{
*drag_cursor = Qt::CursorShape::DragMoveCursor;
}
}
else
{
// Normal dragging
*drag_cursor = Qt::CursorShape::SizeAllCursor;
}
return true;
}
bool C4ConsoleQtGraph::IsEdgeHit(int32_t edge_index, Qt::CursorShape *drag_cursor, bool shift_down, bool ctrl_down)
{
if (shift_down && !ctrl_down)
{
// Insert vertex here
*drag_cursor = Qt::CursorShape::DragCopyCursor;
}
else if (ctrl_down && !shift_down)
{
// Remove this edge
*drag_cursor = Qt::CursorShape::DragMoveCursor;
}
else if (allow_edge_selection)
{
// Normal selection
*drag_cursor = Qt::CursorShape::PointingHandCursor; // can select, but cannot move
}
else
{
// Nothing to do with the edge. Selection disabled.
return false;
}
return true;
}
void C4ConsoleQtGraph::DrawEdge(class C4TargetFacet &cgo, const Vertex &v0, const Vertex &v1, uint32_t clr, float line_width, float edge_width, bool highlight)
{
float vx0 = AbsX(v0.x) + cgo.X - cgo.TargetX;
float vy0 = AbsY(v0.y) + cgo.Y - cgo.TargetY;
float vx1 = AbsX(v1.x) + cgo.X - cgo.TargetX;
float vy1 = AbsY(v1.y) + cgo.Y - cgo.TargetY;
float dx = v1.x - v0.x, dy = v1.y - v0.y;
float d = sqrt(dx*dx + dy*dy);
if (highlight)
{
// Selected edge is surrounded by a highlight
float ddx = dy / d * edge_width;
float ddy = dx / d * edge_width;
pDraw->DrawLineDw(cgo.Surface, vx0 + ddx, vy0 + ddy, vx1 + ddx, vy1 + ddy, 0xffffffff, edge_width);
pDraw->DrawLineDw(cgo.Surface, vx0 - ddx, vy0 - ddy, vx1 - ddx, vy1 - ddy, 0xffffffff, edge_width);
}
// Regular line draw
pDraw->DrawLineDw(cgo.Surface, vx0, vy0, vx1, vy1, clr, edge_width);
// Arrowheads
if (draw_arrows)
{
// Arrowhead points to outer rim of vertex circle if possible
float d_vtx = std::min<float>(d, line_width * 3 * sqrtf(2));
float arrx = vx1 - dx / d * d_vtx;
float arry = vy1 - dy / d * d_vtx;
float arrowhead_size = std::max<float>(2.0, std::min<float>(d / 2, 8.0)) * edge_width;
float ddx1 = (-dy / 2 - dx);
float ddy1 = (+dx / 2 - dy);
float d1 = sqrt(ddx1*ddx1 + ddy1*ddy1);
float ddx2 = (+dy / 2 - dx);
float ddy2 = (-dx / 2 - dy);
float d2 = sqrt(ddx2*ddx2 + ddy2*ddy2);
pDraw->DrawLineDw(cgo.Surface, arrx, arry, arrx + ddx1 * arrowhead_size / d1, arry + ddy1 * arrowhead_size / d1, clr, edge_width);
pDraw->DrawLineDw(cgo.Surface, arrx, arry, arrx + ddx2 * arrowhead_size / d2, arry + ddy2 * arrowhead_size / d2, clr, edge_width);
}
}
void C4ConsoleQtGraph::Draw(class C4TargetFacet &cgo, float line_width)
{
// Draw edges as lines
int32_t i = 0;
for (const Edge &edge : graph.edges)
{
uint32_t clr = GetBorderColor(EdgeToDragBorder(i), false, edge.color);
assert(edge.vertex_indices[0] >= 0 && edge.vertex_indices[1] >= 0);
assert(edge.vertex_indices[0] < graph.vertices.size() && edge.vertex_indices[1] < graph.vertices.size());
const Vertex &v0 = graph.vertices[edge.vertex_indices[0]];
const Vertex &v1 = graph.vertices[edge.vertex_indices[1]];
float edge_width = line_width * edge.line_thickness;
bool highlight = (IsEdgeDrag(selected_border) && DragBorderToEdge(selected_border) == i);
DrawEdge(cgo, v0, v1, clr, line_width, edge_width, highlight);
++i;
}
// Draw vertices as circles with cross inside
i = 0;
for (const Vertex &vtx : graph.vertices)
{
uint32_t clr = GetBorderColor(VertexToDragBorder(i), false, vtx.color);
float d = line_width * 3;
float dc = sqrtf(2) * d;
int32_t x = AbsX(vtx.x) + cgo.X - cgo.TargetX;
int32_t y = AbsY(vtx.y) + cgo.Y - cgo.TargetY;
pDraw->DrawLineDw(cgo.Surface, x - d, y - d, x + d, y + d, clr, line_width);
pDraw->DrawLineDw(cgo.Surface, x - d, y + d, x + d, y - d, clr, line_width);
// Selected vertex is surrounded by a highlight
if (IsVertexDrag(selected_border) && DragBorderToVertex(selected_border) == i)
{
pDraw->DrawCircleDw(cgo.Surface, x, y, dc + line_width, 0xffffffff, line_width);
pDraw->DrawCircleDw(cgo.Surface, x, y, dc - line_width, 0xffffffff, line_width);
}
pDraw->DrawCircleDw(cgo.Surface, x, y, dc, clr, line_width);
++i;
}
}
bool C4ConsoleQtGraph::StartDragging(int32_t *border, int32_t x, int32_t y, bool shift_down, bool ctrl_down)
{
assert(*border != -1);
drag_snap_offset_x = drag_snap_offset_y = 0;
drag_snapped = false;
drag_snap_vertex = -1;
drag_source_vertex_index = -1;
if (shift_down && !ctrl_down && !structure_fix)
{
// Shift: Insert vertex
if (IsEdgeDrag(*border))
{
// Insert on edge
*border = dragging_border = VertexToDragBorder(InsertVertexOnEdge(DragBorderToEdge(*border), x - AbsX(), y - AbsY()));
}
else
{
// Insert from other vertex
drag_source_vertex_index = DragBorderToVertex(*border);
*border = dragging_border = VertexToDragBorder(InsertVertexOnVertex(drag_source_vertex_index, x - AbsX(), y - AbsY()));
}
// Start dragging
return true;
}
else if (ctrl_down && !shift_down && !structure_fix)
{
// Ctrl: Delete vertex or edge
if (IsEdgeDrag(*border))
{
// Delete edge
RemoveEdge(DragBorderToEdge(*border));
}
else
{
// Remove vertex unless it is the last one
// If there's only one vertex left, just keep it
if (graph.vertices.size() > 1) RemoveVertex(DragBorderToVertex(*border), true);
}
// Notify script
emit ShapeDragged();
// Do not start dragging or selecting
*border = -1;
return false;
}
else if (!shift_down && !ctrl_down)
{
// Regular dragging of vertices
if (IsVertexDrag(*border))
{
return C4ConsoleQtShape::StartDragging(border, x, y, shift_down, ctrl_down);
}
else
{
// No dragging of edges
return false;
}
}
else
{
// Unknown modifiers or trying to modify a structure-fixed graph
return false;
}
}
void C4ConsoleQtGraph::Drag(int32_t x, int32_t y, int32_t dx, int32_t dy, int32_t hit_range, Qt::CursorShape *drag_cursor)
{
// Dragging: Only vertices
if (IsVertexDrag(dragging_border) && DragBorderToVertex(dragging_border) < graph.vertices.size())
{
int32_t dragged_vertex_index = DragBorderToVertex(dragging_border);
Vertex &dragged_vertex = graph.vertices[dragged_vertex_index];
// Regular vertex movement
dx -= drag_snap_offset_x;
dy -= drag_snap_offset_y;
if (!horizontal_fix) dragged_vertex.x += dx;
if (!vertical_fix) dragged_vertex.y += dy;
// Handle snap to combine with other vertices
if (!IsPolyline() && !structure_fix)
{
int32_t i = 0;
drag_snap_vertex = -1;
int32_t best_hit_range_sq = hit_range * hit_range * 4;
for (Vertex &check_vertex : graph.vertices)
{
if (i != dragged_vertex_index && i != drag_source_vertex_index)
{
int32_t cdx = check_vertex.x - dragged_vertex.x - dx;
int32_t cdy = check_vertex.y - dragged_vertex.y - dy;
int32_t cdsq = cdx*cdx + cdy*cdy;
if (cdsq <= best_hit_range_sq)
{
drag_snap_vertex = i;
best_hit_range_sq = cdsq;
}
}
++i;
}
// Snapped? Move vertex to snap vertex then
drag_snapped = (drag_snap_vertex >= 0);
if (drag_snapped)
{
drag_snap_offset_x = graph.vertices[drag_snap_vertex].x - dragged_vertex.x;
drag_snap_offset_y = graph.vertices[drag_snap_vertex].y - dragged_vertex.y;
dragged_vertex.x += drag_snap_offset_x;
dragged_vertex.y += drag_snap_offset_y;
*drag_cursor = Qt::CursorShape::DragMoveCursor;
}
else
{
drag_snap_offset_x = drag_snap_offset_y = 0;
*drag_cursor = Qt::CursorShape::SizeAllCursor;
}
}
// Regular drag: Emit signal to update value
EditGraph(true, C4ControlEditGraph::Action::CEG_SetVertexPos, dragged_vertex_index, dragged_vertex.x, dragged_vertex.y);
}
}
void C4ConsoleQtGraph::StopDragging()
{
// Is it a vertex recombination?
if (IsVertexDrag(dragging_border))
{
int32_t dragged_vertex = DragBorderToVertex(dragging_border);
if (drag_snapped)
{
if (dragged_vertex && dragged_vertex != drag_snap_vertex)
{
// dragged_vertex is to be merged into drag_snap_vertex (keeping drag_snap_vertex)
// find all edge targets already existing for drag_snap_vertex (this may include dragged_vertex)
std::set<int32_t> vertices_connected_to_snap_vertex;
int32_t idx;
for (Edge &edge : graph.edges)
{
if (edge.connects_to(drag_snap_vertex, &idx))
{
vertices_connected_to_snap_vertex.insert(edge.vertex_indices[!idx]);
}
}
// make sure that any connection from dragged_vertex to drag_snap_vertex will be excluded by the check
vertices_connected_to_snap_vertex.insert(drag_snap_vertex);
// move all connections that did not exist yet from dragged_vertex to drag_snap_vertex
int32_t i_edge = 0;
for (Edge &edge : graph.edges)
{
if (edge.connects_to(dragged_vertex, &idx))
{
if (!vertices_connected_to_snap_vertex.count(edge.vertex_indices[!idx]))
{
EditEdge(i_edge, idx, drag_snap_vertex);
}
}
++i_edge;
}
// ...and remove the dragged vertex. This will kill any remaining connections
RemoveVertex(dragged_vertex, false);
return;
}
}
// Regular drag: Emit signal to update value
EditGraph(true, C4ControlEditGraph::Action::CEG_SetVertexPos, dragged_vertex, graph.vertices[dragged_vertex].x, graph.vertices[dragged_vertex].y);
}
drag_snapped = false;
// Reset drag
C4ConsoleQtShape::StopDragging();
}
void C4ConsoleQtGraph::SetValue(const C4Value &val)
{
// Load from a proplist
// Expected format for graph e.g.:
// { Vertices = [{ X=123, Y=456, Color=0xff0000 }, { X=789, Y=753 }], Edges = [{ Vertices=[0, 1], Color=0xff00ff, LineWidth=2 }]
C4PropList *valp = val.getPropList();
if (valp)
{
graph.SetVerticesValue(valp->GetPropertyArray(P_Vertices));
graph.SetEdgesValue(valp->GetPropertyArray(P_Edges));
}
}
C4Value C4ConsoleQtGraph::GetValue() const
{
// Store graph as nested arrays / proplists
C4ValueArray *vvertices = graph.GetVerticesValue();
C4ValueArray *vedges = graph.GetEdgesValue();
C4PropList *vmain = C4PropList::New();
vmain->SetProperty(P_Vertices, C4VArray(vvertices));
vmain->SetProperty(P_Edges, C4VArray(vedges));
return C4VPropList(vmain);
}
void C4ConsoleQtGraph::EditEdge(int32_t edge_index, int32_t change_vertex_index, int32_t new_vertex)
{
EditGraph(true, C4ControlEditGraph::Action::CEG_EditEdge, edge_index, change_vertex_index, new_vertex);
}
int32_t C4ConsoleQtGraph::AddVertex(int32_t new_x, int32_t new_y)
{
EditGraph(true, C4ControlEditGraph::Action::CEG_InsertVertex, graph.vertices.size(), new_x, new_y);
return graph.vertices.size() - 1;
}
int32_t C4ConsoleQtGraph::AddEdge(int32_t connect_vertex_index_1, int32_t connect_vertex_index_2)
{
EditGraph(true, C4ControlEditGraph::Action::CEG_InsertEdge, graph.edges.size(), connect_vertex_index_1, connect_vertex_index_2);
return graph.edges.size() - 1;
}
int32_t C4ConsoleQtGraph::InsertVertexOnEdge(int32_t split_edge_index, int32_t x, int32_t y)
{
assert(split_edge_index >= 0 && split_edge_index < graph.edges.size());
// Insert vertex by splitting an edge
int32_t new_vertex_index = AddVertex(x, y);
AddEdge(new_vertex_index, graph.edges[split_edge_index].vertex_indices[1]);
EditEdge(split_edge_index, 1, new_vertex_index);
// Return index of newly added vertex
return new_vertex_index;
}
int32_t C4ConsoleQtGraph::InsertVertexOnVertex(int32_t target_vertex_index, int32_t x, int32_t y)
{
assert(target_vertex_index >= 0 && target_vertex_index < graph.vertices.size());
// Insert vertex
int32_t new_vertex_index = AddVertex(x, y);
// Connect new vertex to target vertex
AddEdge(target_vertex_index, new_vertex_index);
// Return index of newly added vertex
return new_vertex_index;
}
void C4ConsoleQtGraph::RemoveEdge(int32_t edge_index)
{
assert(edge_index >= 0 && edge_index < graph.edges.size());
// Remove the edge
Edge removed_edge = graph.edges[edge_index];
EditGraph(true, C4ControlEditGraph::Action::CEG_RemoveEdge, edge_index, 0, 0);
// Kill unconnected vertices
if (!graph.GetEdgeCountForVertex(removed_edge.vertex_indices[0]))
{
RemoveVertex(removed_edge.vertex_indices[0], false);
// Removing the first vertex will have shifted the index of the second vertex
if (removed_edge.vertex_indices[1] > removed_edge.vertex_indices[0]) --removed_edge.vertex_indices[1];
}
if (!graph.GetEdgeCountForVertex(removed_edge.vertex_indices[1]))
{
// (RemoveVertex will always keep at least one vertex)
RemoveVertex(removed_edge.vertex_indices[1], false);
}
}
void C4ConsoleQtGraph::RemoveVertex(int32_t remove_vertex_index, bool create_skip_connection)
{
assert(remove_vertex_index >= 0 && remove_vertex_index < graph.vertices.size());
// Create skip connection if the vertex had exactly two edges
if (create_skip_connection && graph.GetEdgeCountForVertex(remove_vertex_index) == 2)
{
Edge *combine_edge = nullptr;
int32_t i = 0;
for (Edge &edge : graph.edges)
{
int32_t connect_idx;
if (edge.connects_to(remove_vertex_index, &connect_idx))
{
if (!combine_edge)
{
combine_edge = &edge;
}
else
{
// Let edge bridge over the removed vertex
int32_t v = combine_edge->vertex_indices[combine_edge->vertex_indices[0] == remove_vertex_index];
EditEdge(i, connect_idx, v);
// The removal check will remove the other edge (combine_edge)
break;
}
}
++i;
}
}
// Remove the actual vertex
EditGraph(true, C4ControlEditGraph::Action::CEG_RemoveVertex, remove_vertex_index, 0, 0);
}
void C4ConsoleQtGraph::InsertVertexBefore(int32_t insert_vertex_index, int32_t x, int32_t y)
{
// Insert vertex at position in vertex list
EditGraph(true, C4ControlEditGraph::Action::CEG_InsertVertex, insert_vertex_index, x, y);
}
void C4ConsoleQtGraph::InsertEdgeBefore(int32_t insert_edge_index, int32_t connect_vertex_index_1, int32_t connect_vertex_index_2)
{
// Insert vertex at position in vertex list
EditGraph(true, C4ControlEditGraph::Action::CEG_InsertEdge, insert_edge_index, connect_vertex_index_1, connect_vertex_index_2);
}
bool C4ConsoleQtGraph::IsSelectionAllowed(int32_t border) const
{
// Independent selection settings for vertices and edges
if (IsVertexDrag(border)) return allow_vertex_selection;
if (IsEdgeDrag(border)) return allow_edge_selection;
return false;
}
bool C4ConsoleQtGraph::GetSelectedData(const C4Value &shape_val, const class C4PropertyPath &shape_property_path, C4PropList **shape_item_editorprops, C4PropList **shape_item_value, C4String **shape_item_name, class C4PropertyPath *shape_item_target_path) const
{
// Selection may either be a vertex or an edge
C4PropList *delegate = nullptr;
C4ValueArray *vitems = nullptr;
int32_t selected_item = -1;
C4PropertyPath item_array_path;
if (IsVertexDrag(selected_border))
{
selected_item = DragBorderToVertex(selected_border);
delegate = vertex_delegate.getPropList();
C4PropList *shape_val_proplist = shape_val.getPropList();
if (!shape_val_proplist) return false;
vitems = shape_val_proplist->GetPropertyArray(P_Vertices);
item_array_path = C4PropertyPath(shape_property_path, ::Strings.P[P_Vertices].GetCStr());
}
else if (IsEdgeDrag(selected_border))
{
selected_item = DragBorderToEdge(selected_border);
delegate = edge_delegate.getPropList();
C4PropList *shape_val_proplist = shape_val.getPropList();
if (!shape_val_proplist) return false;
vitems = shape_val_proplist->GetPropertyArray(P_Edges);
item_array_path = C4PropertyPath(shape_property_path, ::Strings.P[P_Edges].GetCStr());
}
if (!delegate) return false;
// Get edge/vertex value
if (!vitems || vitems->GetSize() <= selected_item) return false;
*shape_item_value = vitems->GetItem(selected_item).getPropList();
if (!*shape_item_value) return false;
// Get edge/vertex path
*shape_item_target_path = C4PropertyPath(item_array_path, selected_item);
// Get delegate information
*shape_item_name = delegate->GetPropertyStr(P_Name);
*shape_item_editorprops = delegate->GetPropertyPropList(P_EditorProps);
if (!*shape_item_editorprops) return false; // required
return true;
}
void C4ConsoleQtGraph::EditGraph(bool signal_change, C4ControlEditGraph::Action action, int32_t index, int32_t x, int32_t y)
{
// Execute edit operation on graph
// Validity checks are done by the individual operations
switch (action)
{
case C4ControlEditGraph::Action::CEG_None:
// Should never be sent
assert(false);
break;
case C4ControlEditGraph::Action::CEG_SetVertexPos:
graph.SetVertexPos(index, x, y);
break;
case C4ControlEditGraph::Action::CEG_EditEdge:
graph.EditEdge(index, x, y);
break;
case C4ControlEditGraph::Action::CEG_InsertVertex:
graph.InsertVertexBefore(index, x, y);
break;
case C4ControlEditGraph::Action::CEG_InsertEdge:
graph.InsertEdgeBefore(index, x, y);
break;
case C4ControlEditGraph::Action::CEG_RemoveVertex:
graph.RemoveVertex(index);
break;
case C4ControlEditGraph::Action::CEG_RemoveEdge:
graph.RemoveEdge(index);
break;
}
// Signal change to the owner of this graph
// The owner should propagate the value through the control queue to edit the underlying script data and update any other clients
if (signal_change)
{
emit GraphEdit(action, index, x, y);
}
}
void C4ConsoleQtGraph::EditGraphValue(C4Value &val, C4ControlEditGraph::Action action, int32_t index, int32_t x, int32_t y)
{
// Execute action on C4Value representing graph
// Get graph props: Can be either vertices as array (for polyline/polygon) or proplist with Vertices and Edges props (for general graphs)
C4ValueArray *vvertices = nullptr, *vedges = nullptr;
C4PropList *vval = val.getPropList();
if (vval)
{
if (vval->IsFrozen()) return;
vvertices = vval->GetPropertyArray(P_Vertices);
vedges = vval->GetPropertyArray(P_Edges);
if (!vvertices || !vedges || vvertices->IsFrozen() || vedges->IsFrozen()) return;
}
else
{
vvertices = val.getArray();
if (!vvertices || vvertices->IsFrozen()) return;
}
// Validity checks are done by the individual operations
switch (action)
{
case C4ControlEditGraph::Action::CEG_None:
// Should never be sent
assert(false);
break;
case C4ControlEditGraph::Action::CEG_SetVertexPos:
{
GraphData::EditGraphValue_SetVertexPos(vvertices, index, x, y);
break;
}
case C4ControlEditGraph::Action::CEG_EditEdge:
{
if (vedges) // Ignore on polyline / polygon
{
GraphData::EditGraphValue_EditEdge(vvertices, vedges, index, x, y);
}
break;
}
case C4ControlEditGraph::Action::CEG_InsertVertex:
{
GraphData::EditGraphValue_InsertVertexBefore(vvertices, vedges, index, x, y);
break;
}
case C4ControlEditGraph::Action::CEG_InsertEdge:
{
if (vedges) // Ignore on polyline / polygon
{
GraphData::EditGraphValue_InsertEdgeBefore(vvertices, vedges, index, x, y);
}
break;
}
case C4ControlEditGraph::Action::CEG_RemoveVertex:
{
GraphData::EditGraphValue_RemoveVertex(vvertices, vedges, index);
break;
}
case C4ControlEditGraph::Action::CEG_RemoveEdge:
{
if (vedges) // Ignore on polyline / polygon
{
GraphData::EditGraphValue_RemoveEdge(vvertices, vedges, index);
}
break;
}
}
}
/* Open poly line */
C4ConsoleQtPolyline::C4ConsoleQtPolyline(class C4Object *for_obj, C4PropList *props, const class C4PropertyDelegateShape *parent_delegate, class C4ConsoleQtShapes *shape_list)
: C4ConsoleQtGraph(for_obj, props, parent_delegate, shape_list)
{
if (props)
{
start_from_object = props->GetPropertyBool(P_StartFromObject, start_from_object);
}
}
void C4ConsoleQtPolyline::Draw(class C4TargetFacet &cgo, float line_width)
{
// Line from object center to first vertex
if (start_from_object && graph.vertices.size())
{
C4ConsoleQtGraph::Vertex v0;
if (!is_relative)
{
// In non-relative mode, the root coordinate needs to be pushed to the object manually
C4Object *obj = rel_obj.getObj();
if (obj)
{
v0.x += obj->GetX();
v0.y += obj->GetY();
}
}
DrawEdge(cgo, v0, graph.vertices[0], border_color, line_width, line_width, false);
}
// Remaining polyline is handled by regular graph drawing
C4ConsoleQtGraph::Draw(cgo, line_width);
}
void C4ConsoleQtPolyline::SetValue(const C4Value &val)
{
// Set only vertices from value. Edges just connect all vertices.
graph.SetVerticesValue(val.getArray());
// Init edges directly to avoid unnecessery checks done by insert edge
graph.edges.clear();
if (graph.vertices.size() >= 2)
{
graph.edges.reserve(graph.vertices.size());
for (int32_t i = 0; i < graph.vertices.size() - 1; ++i)
{
Edge edge;
edge.vertex_indices[0] = i;
edge.vertex_indices[1] = i + 1;
graph.edges.push_back(edge);
}
}
}
C4Value C4ConsoleQtPolyline::GetValue() const
{
// Polyline: Only vertices; edges are implicit
return C4VArray(graph.GetVerticesValue());
}
int32_t C4ConsoleQtPolyline::InsertVertexOnEdge(int32_t split_edge_index, int32_t x, int32_t y)
{
// Split an edge
InsertVertexBefore(split_edge_index + 1, x, y);
InsertEdgeBefore(split_edge_index, split_edge_index, split_edge_index + 1);
EditEdge(split_edge_index + 1, 0, split_edge_index + 1);
return split_edge_index + 1;
}
int32_t C4ConsoleQtPolyline::InsertVertexOnVertex(int32_t target_vertex_index, int32_t x, int32_t y)
{
// Only allowed on first or last index: Extends the poly line
if (!target_vertex_index)
{
InsertVertexBefore(0, x, y);
InsertEdgeBefore(0, 0, 1);
return target_vertex_index;
}
else if (target_vertex_index == graph.vertices.size() - 1)
{
InsertVertexBefore(target_vertex_index + 1, x, y);
InsertEdgeBefore(target_vertex_index, target_vertex_index, target_vertex_index + 1);
return target_vertex_index + 1;
}
else
{
assert(false);
return 0;
}
}
void C4ConsoleQtPolyline::RemoveEdge(int32_t edge_index)
{
// Find larger remaining side and keep it
int32_t before_vertices = edge_index + 1;
int32_t after_vertices = graph.edges.size() - edge_index;
if (before_vertices > after_vertices)
{
// Cut everything after removed edge
for (int32_t i = 0; i < after_vertices; ++i)
{
RemoveVertex(graph.vertices.size()-1, false);
}
}
else
{
// Cut everything before removed edge
for (int32_t i = 0; i < before_vertices; ++i) // O(n^2)
{
RemoveVertex(0, false);
}
}
}
bool C4ConsoleQtPolyline::IsVertexHit(int32_t vertex_index, Qt::CursorShape *drag_cursor, bool shift_down, bool ctrl_down)
{
// Cannot add vertices from other vertices; only from edges
// Except for end points where it would expand the poly line
if (shift_down && !ctrl_down && vertex_index && vertex_index != graph.vertices.size()-1)
{
return false;
}
return C4ConsoleQtGraph::IsVertexHit(vertex_index, drag_cursor, shift_down, ctrl_down);
}
/* Closed polygon */
void C4ConsoleQtPolygon::SetValue(const C4Value &val)
{
// Set open polyline vertices and edges
C4ConsoleQtPolyline::SetValue(val);
// Add closing edge
if (graph.vertices.size() > 2)
{
Edge edge;
edge.vertex_indices[0] = graph.vertices.size() - 1;
edge.vertex_indices[1] = 0;
graph.edges.push_back(edge);
}
}
int32_t C4ConsoleQtPolygon::InsertVertexOnEdge(int32_t split_edge_index, int32_t x, int32_t y)
{
// Split the edge
int32_t rval = C4ConsoleQtPolyline::InsertVertexOnEdge(split_edge_index, x, y);
// Close the polygon if it just became a triangle
if (graph.vertices.size() == 3)
{
AddEdge(2, 0);
}
return rval;
}
int32_t C4ConsoleQtPolygon::InsertVertexOnVertex(int32_t target_vertex_index, int32_t x, int32_t y)
{
// Never called because IsHit should return false
assert(false);
return 0;
}
void C4ConsoleQtPolygon::RemoveEdge(int32_t edge_index)
{
// Remove both connected vertices (unless it's the last one)
Edge edge = graph.edges[edge_index];
int32_t vertex_index = edge.vertex_indices[1];
RemoveVertex(vertex_index, true);
if (graph.vertices.size() > 1)
{
RemoveVertex(vertex_index ? edge.vertex_indices[0] : graph.vertices.size() - 1, true);
}
}
bool C4ConsoleQtPolygon::IsVertexHit(int32_t vertex_index, Qt::CursorShape *drag_cursor, bool shift_down, bool ctrl_down)
{
// Cannot add vertices from other vertices; only from edges
if (shift_down && !ctrl_down)
{
return false;
}
// Skip C4ConsoleQtPolyline::IsVertexHit; it doesn't do sensible extra checks
return C4ConsoleQtGraph::IsVertexHit(vertex_index, drag_cursor, shift_down, ctrl_down);
}
/* Shape list */
C4ConsoleQtShape *C4ConsoleQtShapes::CreateShape(class C4Object *for_obj, C4PropList *props, const C4Value &val, const class C4PropertyDelegateShape *parent_delegate)
{
C4String *type = props->GetPropertyStr(P_Type);
if (!type) return nullptr;
C4ConsoleQtShape *shape = nullptr;
if (type->GetData() == "rect") shape = new C4ConsoleQtRect(for_obj, props, parent_delegate, this);
else if (type->GetData() == "circle") shape = new C4ConsoleQtCircle(for_obj, props, parent_delegate, this);
else if (type->GetData() == "point") shape = new C4ConsoleQtPoint(for_obj, props, parent_delegate, this);
else if (type->GetData() == "graph") shape = new C4ConsoleQtGraph(for_obj, props, parent_delegate, this);
else if (type->GetData() == "polyline") shape = new C4ConsoleQtPolyline(for_obj, props, parent_delegate, this);
else if (type->GetData() == "polygon") shape = new C4ConsoleQtPolygon(for_obj, props, parent_delegate, this);
shape->SetValue(val);
return shape;
}
void C4ConsoleQtShapes::AddShape(C4ConsoleQtShape *shape)
{
if (shape) shapes.emplace_back(shape);
}
void C4ConsoleQtShapes::RemoveShape(C4ConsoleQtShape *shape)
{
// Remove from list and currently moving shape
shapes.remove_if([shape](auto &it) { return it.get() == shape; });
if (dragging_shape == shape) dragging_shape = nullptr;
if (selected_shape == shape) selected_shape = nullptr;
}
void C4ConsoleQtShapes::ClearShapes()
{
shapes.clear();
dragging_shape = selected_shape = nullptr;
drag_cursor = Qt::CursorShape::ArrowCursor;
}
void C4ConsoleQtShapes::Draw(C4TargetFacet &cgo)
{
// Draw all shapes with at least 1px line width
ZoomDataStackItem zdsi(cgo.X, cgo.Y, cgo.Zoom);
float line_width = std::max<float>(1.0f, 1.0f / cgo.Zoom);
for (auto &shape : shapes) shape->Draw(cgo, line_width);
}
bool C4ConsoleQtShapes::MouseDown(float x, float y, float hit_range, bool shift_down, bool ctrl_down)
{
// Check for shape hit and start dragging if a shape is in hit range
int32_t hit_range_int = std::max(int32_t(hit_range + 0.5f), 1); // Using integer hit ranges for now
// Ensure no leftover other shape
if (dragging_shape) MouseUp(x, y, shift_down, ctrl_down);
int32_t drag_border=-1;
for (auto &shape : shapes)
{
if (shape->IsHit(x, y, hit_range_int, &drag_cursor, &drag_border, shift_down, ctrl_down))
{
dragging_shape = shape.get();
if (dragging_shape->StartDragging(&drag_border, int32_t(x), int32_t(y), shift_down, ctrl_down))
{
drag_x = x;
drag_y = y;
}
else
{
// No dragging (the click may have done something else with the shape)
dragging_shape = nullptr;
}
// Selection (independent of dragging; but drag may have changed the border)
if (drag_border != -1)
{
if (shape->IsSelectionAllowed(drag_border))
{
SetSelectedShape(&*shape, drag_border);
}
}
return true;
}
}
return false;
}
void C4ConsoleQtShapes::MouseMove(float x, float y, bool left_down, float hit_range, bool shift_down, bool ctrl_down)
{
// Check for shape hit and start dragging if a shape is in hit range
int32_t hit_range_int = std::max(int32_t(hit_range + 0.5f), 1); // Using integer hit ranges for now
// mouse down move: Execute shape dragging (full pixels only)
if (dragging_shape && left_down)
{
int32_t dx = int32_t(round(x - drag_x)),
dy = int32_t(round(y - drag_y));
if (dx || dy)
{
drag_x += dx;
drag_y += dy;
dragging_shape->Drag(drag_x, drag_y, dx, dy, hit_range_int, &drag_cursor);
}
}
else if (!left_down)
{
// Just moving around: Update cursor
drag_cursor = Qt::CursorShape::ArrowCursor;
int32_t ignored;
for (auto &shape : shapes) if (shape->IsHit(x, y, hit_range_int, &drag_cursor, &ignored, shift_down, ctrl_down)) break;
}
else
{
// Regular move: Reset drag cursor
drag_cursor = Qt::CursorShape::ArrowCursor;
}
}
void C4ConsoleQtShapes::MouseUp(float x, float y, bool shift_down, bool ctrl_down)
{
// Stop dragging
if (dragging_shape)
{
dragging_shape->StopDragging();
dragging_shape = nullptr;
drag_cursor = Qt::CursorShape::ArrowCursor;
}
}
void C4ConsoleQtShapes::SetSelectedShape(C4ConsoleQtShape *new_selection, int32_t selected_border)
{
// Deselect old and select new
if (selected_shape) selected_shape->ResetSelection();
selected_shape = new_selection;
if (selected_shape)
{
if (!selected_shape->Select(selected_border))
{
// Selection failure? Deselect if still selected.
if (selected_shape == new_selection) selected_shape = nullptr;
}
}
}
bool C4ConsoleQtShapes::GetSelectedShapeData(const C4Value &shape_val, const class C4PropertyPath &shape_property_path, C4PropList **shape_item_editorprops, C4PropList **shape_item_value, C4String **shape_item_name, class C4PropertyPath *shape_item_target_path) const
{
if (!selected_shape) return false;
return selected_shape->GetSelectedData(shape_val, shape_property_path, shape_item_editorprops, shape_item_value, shape_item_name, shape_item_target_path);
}
/* Shape pointer holder class */
bool C4ConsoleQtShapeHolder::last_visit_flag = false;
void C4ConsoleQtShapeHolder::Clear()
{
if (shape)
{
::Console.EditCursor.GetShapes()->RemoveShape(shape);
shape = nullptr;
}
}
void C4ConsoleQtShapeHolder::Set(C4ConsoleQtShape *new_shape)
{
if (shape == new_shape) return;
Clear();
shape = new_shape;
if (shape) ::Console.EditCursor.GetShapes()->AddShape(shape);
}