MultipleChoiceValueEditor: implemented drop down list

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@252 0fc631ac-6414-0410-93d0-97cfa31319b6

src/gui/value/multiple_choice.cpp

@@ -7,12 +7,83 @@
 // ----------------------------------------------------------------------------- : Includes
 
 #include <gui/value/multiple_choice.hpp>
+#include <gui/thumbnail_thread.hpp>
+#include <gui/util.hpp>
 #include <data/action/value.hpp>
 
+// ----------------------------------------------------------------------------- : DropDownMultipleChoiceList
+
+/// A drop down list of color choices
+class DropDownMultipleChoiceList : public DropDownChoiceListBase {
+  public:
+	DropDownMultipleChoiceList(Window* parent, bool is_submenu, ValueViewer& cve, ChoiceField::ChoiceP group);
+	
+  protected:
+	virtual void   select(size_t item);
+	virtual size_t selection() const;
+	virtual DropDownList* createSubMenu(ChoiceField::ChoiceP group) const;
+	virtual void drawIcon(DC& dc, int x, int y, size_t item, bool selected) const;
+};
+
+DropDownMultipleChoiceList::DropDownMultipleChoiceList
+		(Window* parent, bool is_submenu, ValueViewer& cve, ChoiceField::ChoiceP group)
+	: DropDownChoiceListBase(parent, is_submenu, cve, group)
+{
+	icon_size.width += 16;
+}
+
+void DropDownMultipleChoiceList::select(size_t item) {
+	if (isFieldDefault(item)) {
+		// should not happen
+	} else {
+		ChoiceField::ChoiceP choice = getChoice(item);
+		dynamic_cast<MultipleChoiceValueEditor&>(cve).toggle(choice->first_id);
+	}
+}
+
+void DropDownMultipleChoiceList::drawIcon(DC& dc, int x, int y, size_t item, bool selected) const {
+	// is this item active?
+	bool active = false;
+	if (!isFieldDefault(item)) {
+		ChoiceField::ChoiceP choice = getChoice(item);
+		active = dynamic_cast<MultipleChoiceValueEditor&>(cve).active[choice->first_id];
+	}
+	// draw checkbox
+	dc.SetPen(*wxTRANSPARENT_PEN);
+	dc.SetBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
+	dc.DrawRectangle(x,y,16,16);
+	wxRect rect = RealRect(x+2,y+2,12,12);
+	draw_checkbox(nullptr, dc, rect, active);
+	// draw icon
+	DropDownChoiceListBase::drawIcon(dc, x + 16, y, item, selected);
+}
+
+size_t DropDownMultipleChoiceList::selection() const {
+	// we need thumbnail images soon
+	const_cast<DropDownMultipleChoiceList*>(this)->generateThumbnailImages();
+	// we don't know the selection
+	return NO_SELECTION;
+}
+
+DropDownList* DropDownMultipleChoiceList::createSubMenu(ChoiceField::ChoiceP group) const {
+	return new DropDownMultipleChoiceList(const_cast<DropDownMultipleChoiceList*>(this), true, cve, group);
+}
+
 // ----------------------------------------------------------------------------- : MultipleChoiceValueEditor
 
 IMPLEMENT_VALUE_EDITOR(MultipleChoice) {}
 
+MultipleChoiceValueEditor::~MultipleChoiceValueEditor() {
+	thumbnail_thread.abort(this);
+}
+
+DropDownList& MultipleChoiceValueEditor::initDropDown() {
+	if (!drop_down) {
+		drop_down.reset(new DropDownMultipleChoiceList(&editor(), false, *this, field().choices));
+	}
+	return *drop_down;
+}
+
 void MultipleChoiceValueEditor::determineSize(bool force_fit) {
 	if (!nativeLook()) return;
 	// item height
@@ -24,7 +95,7 @@ void MultipleChoiceValueEditor::determineSize(bool force_fit) {
 
 bool MultipleChoiceValueEditor::onLeftDown(const RealPoint& pos, wxMouseEvent& ev) {
 	// find item under cursor
-	if (style().render_style && RENDER_CHECKLIST) {
+	if (style().render_style & RENDER_CHECKLIST) {
 		int id = (pos.y - style().top) / item_height;
 		int end = field().choices->lastId();
 		if (id >= 0 && id < end) {
@@ -32,10 +103,39 @@ bool MultipleChoiceValueEditor::onLeftDown(const RealPoint& pos, wxMouseEvent& e
 			return true;
 		}
 	} else {
-		// TODO
+		// open a drop down menu
+		return initDropDown().onMouseInParent(ev, style().popup_style == POPUP_DROPDOWN_IN_PLACE && !nativeLook());
 	}
 	return false;
 }
+bool MultipleChoiceValueEditor::onChar(wxKeyEvent& ev) {
+	if (style().render_style & RENDER_CHECKLIST) {
+		// todo;
+		return false;
+	} else {
+		return initDropDown().onCharInParent(ev);
+	}
+}
+void MultipleChoiceValueEditor::onLoseFocus() {
+	if (drop_down) drop_down->hide(false);
+}
+
+void MultipleChoiceValueEditor::onValueChange() {
+	MultipleChoiceValueViewer::onValueChange();
+	// determine active values
+	active.clear();
+	vector<String> selected;
+	value().get(selected);
+	vector<String>::iterator select_it = selected.begin();
+	// for each choice...
+	int end = field().choices->lastId();
+	for (int i = 0 ; i < end ; ++i) {
+		String choice = field().choices->choiceName(i);
+		bool is_active = select_it != selected.end() && *select_it == choice;
+		if (is_active) select_it++;
+		active.push_back(is_active);
+	}
+}
 
 void MultipleChoiceValueEditor::toggle(int id) {
 	String new_value;