src: refactored UI elements and graphics file structure

* split QtIconButton into multiple files
* moved graph elements from view to graphics
* structured elements into sub directories

src/lib_gui/qt/element/code/QtCodeFileList.h

@@ -0,0 +1,90 @@
+#ifndef QT_CODE_FILE_LIST
+#define QT_CODE_FILE_LIST
+
+#include <vector>
+
+#include <QFrame>
+#include <QScrollArea>
+
+#include "CodeSnippetParams.h"
+#include "QtCodeNavigateable.h"
+#include "QtScrollSpeedChangeListener.h"
+
+class QtCodeFile;
+class QtCodeFileTitleBar;
+class QtCodeNavigator;
+class QtCodeSnippet;
+
+class QtCodeFileList
+	: public QFrame
+	, public QtCodeNavigateable
+{
+	Q_OBJECT
+
+public:
+	QtCodeFileList(QtCodeNavigator* navigator);
+	virtual ~QtCodeFileList() = default;
+
+	void clear();
+	void clearSnippetTitleAndScrollBar();
+
+	QtCodeFile* getFile(const FilePath filePath);
+	void addFile(std::shared_ptr<SourceLocationFile> locationFile, int refCount, TimeStamp modificationTime);
+
+	// QtCodeNaviatebale implementation
+	QScrollArea* getScrollArea() override;
+
+	void addCodeSnippet(const CodeSnippetParams& params) override;
+	void updateCodeSnippet(const CodeSnippetParams& params) override;
+
+	void requestFileContent(const FilePath& filePath) override;
+	bool requestScroll(const FilePath& filePath, uint lineNumber, Id locationId, bool animated, ScrollTarget target) override;
+
+	void updateFiles() override;
+	void showContents() override;
+
+	void onWindowFocus() override;
+
+	void findScreenMatches(const std::wstring& query, std::vector<std::pair<QtCodeArea*, Id>>* screenMatches) override;
+
+	std::vector<std::pair<FilePath, Id>> getLocationIdsForTokenIds(const std::set<Id>& tokenIds) const override;
+
+	void setFileMinimized(const FilePath path);
+	void setFileSnippets(const FilePath path);
+	void setFileMaximized(const FilePath path);
+
+	void maximizeFirstFile();
+
+	std::pair<QtCodeFile*, Id> getFirstFileWithActiveLocationId() const;
+	std::pair<QtCodeSnippet*, Id> getFirstSnippetWithActiveLocationId(Id tokenId) const;
+
+protected:
+	void resizeEvent(QResizeEvent* event) override;
+
+private slots:
+	void updateSnippetTitleAndScrollBarSlot();
+	void updateSnippetTitleAndScrollBar(int value = 0);
+	void scrollLastSnippet(int value);
+	void scrollLastSnippetScrollBar(int value);
+
+private:
+	void updateFirstSnippetTitleBar(const QtCodeFile* file, int fileTitleBarOffset = 0);
+	void updateLastSnippetScrollBar(QScrollBar* mirroredScrollBar);
+
+	QtCodeNavigator* m_navigator;
+	QScrollArea* m_scrollArea;
+	QFrame* m_filesArea;
+
+	std::vector<QtCodeFile*> m_files;
+
+	QtCodeFileTitleBar* m_firstSnippetTitleBar;
+	const QtCodeFileTitleBar* m_mirroredTitleBar;
+
+	QScrollBar* m_lastSnippetScrollBar;
+	QScrollBar* m_mirroredSnippetScrollBar;
+
+	QtScrollSpeedChangeListener m_scrollSpeedChangeListener;
+	int m_styleSize = 0;
+};
+
+#endif // QT_CODE_FILE_LIST