fix: lab use history, dissolve, mosaic

ImpressionistDoc.cpp

@@ -181,6 +181,7 @@ void ImpressionistDoc::runBayesian()
 {
 	char* newfile = fl_file_chooser("Open File?", "*.bmp", getImageName());
 	if (newfile != NULL) {
+		recordHistory();
 		m_bayesian->solve(newfile);
 		if(m_ucAnother)
 		{

ImpressionistUI.cpp

@@ -646,10 +646,12 @@ void ImpressionistUI::cb_dissolve(Fl_Widget* o, void*)
 
 	auto* fileName = fl_file_chooser("Open File?", "*.bmp", nullptr);
 	if (fileName != nullptr) {
+		uiPtr->m_pDoc->recordHistory();
 		auto width = 0;
 		auto height = 0;
+		auto oPtr = readBMP(fileName, width, height);
 		ImageWrapper imageWrapper = {
-			readBMP(fileName, width, height),
+			oPtr,
 			{ width, height }
 		};
 

MosaicBuilder.cpp

@@ -212,18 +212,25 @@ bool MosaicBuilder::loadAllTiles()
 				auto width = 0;
 				auto height = 0;
 
+				auto a = readBMP(entry.path().string().c_str(), width, height);
+				const Dim ad = { width, height };
+				auto b = readBMP(resultGradientPath.string().c_str(), width, height);
+				const Dim bd = { width, height };
+				auto c = readBMP(resultColorPath.string().c_str(), width, height);
+				const Dim cd = { width, height };
+
 				imagePool[name] = ImageSet{
 					new ImageWrapper<unsigned char>{
-						readBMP(entry.path().string().c_str(), width, height),
-						{ width, height }
+						a,
+						ad
 					},
 					new ImageWrapper<unsigned char>{
-						readBMP(resultGradientPath.string().c_str(), width, height),
-						{ width, height }
+						b,
+						bd
 					},
 					new ImageWrapper<unsigned char>{
-						readBMP(resultColorPath.string().c_str(), width, height),
-						{ width, height }
+						c,
+						cd
 					}
 				};
 			}

PatternBrush.cpp

@@ -46,9 +46,9 @@ void PatternBrush::setPatterns(const std::string& directoryName)
 				//Entry should be an alpha map.
 				auto width = 0;
 				auto height = 0;
-
+				auto xxxxx = readBMP(entry.path().string().c_str(), width, height);
 				patterns.push_back({
-					readBMP(entry.path().string().c_str(), width, height),
+					xxxxx,
 					{width, height}
 				});
 			}
@@ -126,7 +126,7 @@ void PatternBrush::BrushMove(const Point source, const Point target)
 	{
 		//Make new pattern
 		const auto i = dis(gen);
-		if (i < 0 || scaledPatterns.size() >= i) return;
+		if (i < 0 || i >= scaledPatterns.size()) return;
 		auto& alpha = scaledPatterns[i];
 
 		const int tX0 = target.x - alpha.dim.width / 2;