gui: add halo to dbInst descriptor and draw with placement blockages

Signed-off-by: Peter Gadfort <[email protected]>

Author: gadfort

src/gui/src/dbDescriptors.cpp

@@ -630,6 +630,11 @@ Descriptor::Properties DbInstDescriptor::getDBProperties(
     props.push_back({"Region", gui->makeSelected(region)});
   }
 
+  auto* halo = inst->getHalo();
+  if (halo != nullptr) {
+    props.push_back({"Halo", gui->makeSelected(halo)});
+  }
+
   sta::Instance* sta_inst = sta_->getDbNetwork()->dbToSta(inst);
   if (sta_inst != nullptr) {
     props.push_back({"Timing/Power", gui->makeSelected(sta_inst)});

src/gui/src/renderThread.cpp

@@ -820,7 +820,8 @@ bool RenderThread::drawTextInBBox(const QColor& text_color,
 
 void RenderThread::drawBlockages(QPainter* painter,
                                  odb::dbBlock* block,
-                                 const Rect& bounds)
+                                 const Rect& bounds,
+                                 const std::vector<odb::dbInst*>& insts)
 {
   if (!viewer_->options_->areBlockagesVisible()) {
     return;
@@ -844,6 +845,23 @@ void RenderThread::drawBlockages(QPainter* painter,
     Rect bbox = blockage->getBBox()->getBox();
     painter->drawRect(bbox.xMin(), bbox.yMin(), bbox.dx(), bbox.dy());
   }
+
+  for (odb::dbInst* inst : insts) {
+    if (restart_) {
+      break;
+    }
+    odb::dbBox* halo = inst->getHalo();
+    if (halo != nullptr) {
+      Rect instbox = inst->getBBox()->getBox();
+      Rect halobox = halo->getBox();
+      instbox.set_xlo(instbox.xMin() - halobox.xMin());
+      instbox.set_ylo(instbox.yMin() - halobox.yMin());
+      instbox.set_xhi(instbox.xMax() + halobox.xMax());
+      instbox.set_yhi(instbox.yMax() + halobox.yMax());
+      painter->drawRect(
+          instbox.xMin(), instbox.yMin(), instbox.dx(), instbox.dy());
+    }
+  }
 }
 
 void RenderThread::drawObstructions(odb::dbBlock* block,
@@ -1198,7 +1216,7 @@ void RenderThread::drawChip(QPainter* painter,
 
   // draw blockages
   utl::Timer inst_blockages;
-  drawBlockages(painter, block, bounds);
+  drawBlockages(painter, block, bounds, insts);
   debugPrint(logger_, GUI, "draw", 1, "blockages {}", inst_blockages);
 
   dbTech* tech = block->getTech();

src/gui/src/renderThread.h

@@ -103,7 +103,8 @@ class RenderThread : public QThread
 
   void drawBlockages(QPainter* painter,
                      odb::dbBlock* block,
-                     const odb::Rect& bounds);
+                     const odb::Rect& bounds,
+                     const std::vector<odb::dbInst*>& insts);
   void drawObstructions(odb::dbBlock* block,
                         odb::dbTechLayer* layer,
                         QPainter* painter,