c744157e9a
The patch implements context-aware selection and rendering in 3D view. Please check [here](https://git.io/fjiY5) for more details, including the following 'Render Caching' section. The patch also includes modification of View3DInventorViewer to support always-on-top selection rendering using the secondary selection context and the new coin node SoFCPathAnnotation. Another small change in SoQtQuarterAdaptor for more responsive frame rate display. The original implementation reports skewed frame rate in the presence of long idle period.
284 lines
8.7 KiB
C++
284 lines
8.7 KiB
C++
/****************************************************************************
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* Copyright (c) 2018 Zheng, Lei (realthunder) <realthunder.dev@gmail.com>*
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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****************************************************************************/
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#include "PreCompiled.h"
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#include <boost/algorithm/string/predicate.hpp>
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#include <Inventor/misc/SoState.h>
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#include <Inventor/elements/SoGLCacheContextElement.h>
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#include <Inventor/elements/SoCacheElement.h>
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#include "SoFCUnifiedSelection.h"
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#include "Selection.h"
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using namespace Gui;
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/////////////////////////////////////////////////////////////////////////////
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SoFCSelectionContext::~SoFCSelectionContext() {
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if(counter)
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*counter -= 1;
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}
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bool SoFCSelectionContext::checkGlobal(SoFCSelectionContextPtr ctx) {
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bool sel = false;
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bool hl = false;
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SoFCSelectionRoot::checkSelection(sel,selectionColor,hl,highlightColor);
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if(sel)
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selectionIndex.insert(-1);
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else if(ctx && hl) {
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selectionColor = ctx->selectionColor;
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selectionIndex = ctx->selectionIndex;
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}else
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selectionIndex.clear();
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if(hl)
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highlightAll();
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else if(ctx && sel) {
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highlightIndex = ctx->highlightIndex;
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highlightColor = ctx->highlightColor;
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}else
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removeHighlight();
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return sel||hl;
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}
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bool SoFCSelectionContext::removeIndex(int index) {
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auto it = selectionIndex.find(index);
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if(it != selectionIndex.end()) {
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selectionIndex.erase(it);
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return true;
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}
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return false;
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}
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int SoFCSelectionContext::merge(int status, SoFCSelectionContextBasePtr &output,
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SoFCSelectionContextBasePtr input, SoFCSelectionRoot *)
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{
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auto ctx = std::dynamic_pointer_cast<SoFCSelectionContext>(input);
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if(!ctx)
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return status;
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if(ctx->selectionIndex.empty()) {
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output = ctx;
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return -1;
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}
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auto ret = std::dynamic_pointer_cast<SoFCSelectionContext>(output);
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if(!ret) {
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output = ctx;
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return 0;
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}
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if(ctx->isSelectAll())
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return status;
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if(ret->isSelectAll()) {
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if(!status) {
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output = ret->copy();
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ret = std::dynamic_pointer_cast<SoFCSelectionContext>(ret);
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assert(ret);
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}
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ret->selectionIndex = ctx->selectionIndex;
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return status;
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}
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std::vector<int> remove;
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for(auto idx : ret->selectionIndex) {
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if(!ctx->selectionIndex.count(idx))
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remove.push_back(idx);
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}
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for(auto idx : remove) {
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if(!status) {
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status = 1;
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output = ret->copy();
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ret = std::dynamic_pointer_cast<SoFCSelectionContext>(ret);
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assert(ret);
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}
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ret->selectionIndex.erase(idx);
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if(ret->selectionIndex.empty())
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return -1;
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}
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return status;
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}
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/////////////////////////////////////////////////////////////////////////////////////
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bool SoFCSelectionContextEx::setColors(
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const std::map<std::string,App::Color> &colors, const std::string &element) {
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std::map<int,App::Color> tmp;
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auto it = colors.find("");
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if(it!=colors.end())
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tmp[-1] = it->second;
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for(auto it=colors.lower_bound(element);it!=colors.end();++it) {
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if(!boost::starts_with(it->first,element))
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break;
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if(it->first.size()==element.size())
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tmp[-1] = it->second;
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else {
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int idx = std::atoi(it->first.c_str()+4);
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if(idx>0) {
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idx -= 1;
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tmp[idx] = it->second;
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}
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}
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}
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if(tmp == this->colors)
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return false;
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this->colors.swap(tmp);
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return true;
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}
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uint32_t SoFCSelectionContextEx::packColor(const App::Color &c, bool &hasTransparency) {
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float trans = std::max(trans0,c.a);
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if(trans>0)
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hasTransparency = true;
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return SbColor(c.r,c.g,c.b).getPackedValue(trans);
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}
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bool SoFCSelectionContextEx::applyColor(int idx, std::vector<uint32_t> &packedColors, bool &hasTransparency) {
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if(colors.empty())
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return false;
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auto it = colors.find(idx);
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if(it==colors.end()) {
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if(colors.begin()->first >= 0)
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return false;
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it = colors.begin();
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}
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packedColors.push_back(packColor(it->second,hasTransparency));
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return true;
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}
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bool SoFCSelectionContextEx::isSingleColor(uint32_t &color, bool &hasTransparency) {
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if(colors.size() && colors.begin()->first<0) {
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color = packColor(colors.begin()->second,hasTransparency);
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return colors.size()==1;
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}
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return false;
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}
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int SoFCSelectionContextEx::merge(int status, SoFCSelectionContextBasePtr &output,
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SoFCSelectionContextBasePtr input, SoFCSelectionRoot *node)
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{
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auto ctx = std::dynamic_pointer_cast<SoFCSelectionContextEx>(input);
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if(!ctx) {
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if(node && node->hasColorOverride()) {
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if(!status)
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status = 2;
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else if(status == 1)
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status = 3;
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}
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return status;
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}
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int status_copy = status;
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if(status==2)
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status_copy = 0;
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else if(status==3)
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status_copy = 1;
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status_copy = SoFCSelectionContext::merge(status_copy,output,input,node);
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if(status_copy < 0)
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return status_copy;
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if(status>1) {
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// When status>1 it means there is color override before us, all
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// subsequent color override will be bypassed
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if(status_copy==1)
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status = 3;
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else
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status = 2;
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return status;
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}
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status = status_copy;
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auto ret = std::dynamic_pointer_cast<SoFCSelectionContextEx>(output);
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assert(ret);
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for(auto &v : ctx->colors) {
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if(ret->colors.count(v.first))
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continue;
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if(!status) {
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status = 1;
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output = ret->copy();
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ret = std::dynamic_pointer_cast<SoFCSelectionContextEx>(output);
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assert(ret);
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}
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ret->colors.insert(v);
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}
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if(node && node->hasColorOverride()) {
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if(!status)
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status = 2;
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else if(status == 1)
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status = 3;
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}
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return status;
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}
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///////////////////////////////////////////////////////////////////////
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SoFCSelectionCounter::SoFCSelectionCounter()
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:counter(std::make_shared<int>(0))
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,hasSelection(false)
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,hasPreselection(false)
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{}
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SoFCSelectionCounter::~SoFCSelectionCounter()
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{}
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bool SoFCSelectionCounter::checkRenderCache(SoState *state) {
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if(*counter ||
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(hasSelection && Selection().hasSelection()) ||
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(hasPreselection && Selection().hasPreselection()))
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{
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if(SoFCSelectionRoot::getCacheMode()!=SoSeparator::OFF)
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SoCacheElement::invalidate(state);
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return false;
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}
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if(!Selection().hasPreselection())
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hasPreselection = false;
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if(!Selection().hasSelection())
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hasSelection = false;
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return true;
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}
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void SoFCSelectionCounter::checkAction(SoHighlightElementAction *hlaction) {
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if(hlaction->isHighlighted())
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hasPreselection = true;
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}
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void SoFCSelectionCounter::checkAction(SoSelectionElementAction *selaction, SoFCSelectionContextPtr ctx) {
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switch(selaction->getType()) {
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case SoSelectionElementAction::None:
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return;
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case SoSelectionElementAction::All:
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case SoSelectionElementAction::Append:
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hasSelection = true;
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break;
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default:
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break;
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}
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if(selaction->isSecondary()) {
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if(ctx && !ctx->counter) {
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*counter += 1;
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ctx->counter = counter;
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}
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}
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}
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