C++ Text::SetStyle方法代码示例

void FileSelector::SetFilters(const Vector<String>& filters, unsigned defaultIndex)
{
    if (filters.Empty())
        return;

    ignoreEvents_ = true;

    filters_ = filters;
    filterList_->RemoveAllItems();
    for (unsigned i = 0; i < filters_.Size(); ++i)
    {
        Text* filterText = new Text(context_);
        filterList_->AddItem(filterText);
        filterText->SetText(filters_[i]);
        filterText->SetStyle("FileSelectorFilterText");
    }
    if (defaultIndex > filters.Size())
        defaultIndex = 0;
    filterList_->SetSelection(defaultIndex);

    ignoreEvents_ = false;

    if (GetFilter() != lastUsedFilter_)
        RefreshFiles();
}

static int lua_new_text (lua_State *L) {

	size_t st;
	const char* name = luaL_checklstring(L, 2, &st);
	double x = luaL_checknumber(L, 3);
	double y = luaL_checknumber(L, 4);
	double w = luaL_checknumber(L, 5);
	double h = luaL_checknumber(L, 6);

	Style* style = 0;
	if (lua_type(L, 7)!=LUA_TNIL){
		style = lua_checklstyle(L, 7);
	}
	const char* text = luaL_checklstring(L, 8, &st);

	Box** c = (Box**)lua_newuserdata(L, sizeof(Box*));
	luaL_getmetatable(L, "layout");
	lua_setmetatable(L, -2);

	Text *e = new Text(name, x, y, w, h);
	if (style) e->SetStyle(style);
	e->text = text;
	*c = static_cast<Box*>(e);

	return 1;
}

void Console::SetNumBufferedRows(unsigned rows)
{
    if (rows < displayedRows_)
        return;

    rowContainer_->DisableLayoutUpdate();

    int delta = rowContainer_->GetNumItems() - rows;
    if (delta > 0)
    {
        // We have more, remove oldest rows first
        for (int i = 0; i < delta; ++i)
            rowContainer_->RemoveItem((unsigned)0);
    }
    else
    {
        // We have less, add more rows at the top
        for (int i = 0; i > delta; --i)
        {
            Text* text = new Text(context_);
            // If style is already set, apply here to ensure proper height of the console when
            // amount of rows is changed
            if (background_->GetDefaultStyle())
                text->SetStyle("ConsoleText");
            rowContainer_->InsertItem(0, text);
        }
    }

    rowContainer_->EnsureItemVisibility(rowContainer_->GetItem(rowContainer_->GetNumItems() - 1));
    rowContainer_->EnableLayoutUpdate();
    rowContainer_->UpdateLayout();

    UpdateElements();
}

void HelloGUI::CreateDraggableFish()
{
    ResourceCache* cache = GetSubsystem<ResourceCache>();
    Graphics* graphics = GetSubsystem<Graphics>();

    // Create a draggable Fish button
    Button* draggableFish = new Button(context_);
    draggableFish->SetTexture(cache->GetResource<Texture2D>("Textures/UrhoDecal.dds")); // Set texture
    draggableFish->SetBlendMode(BLEND_ADD);
    draggableFish->SetSize(128, 128);
    draggableFish->SetPosition((graphics->GetWidth() - draggableFish->GetWidth()) / 2, 200);
    draggableFish->SetName("Fish");
    uiRoot_->AddChild(draggableFish);

    // Add a tooltip to Fish button
    ToolTip* toolTip = new ToolTip(context_);
    draggableFish->AddChild(toolTip);
    toolTip->SetPosition(IntVector2(draggableFish->GetWidth() + 5, draggableFish->GetWidth() / 2)); // slightly offset from close button
    BorderImage* textHolder = new BorderImage(context_);
    toolTip->AddChild(textHolder);
    textHolder->SetStyle("ToolTipBorderImage");
    Text* toolTipText = new Text(context_);
    textHolder->AddChild(toolTipText);
    toolTipText->SetStyle("ToolTipText");
    toolTipText->SetText("Please drag me!");

    // Subscribe draggableFish to Drag Events (in order to make it draggable)
    // See "Event list" in documentation's Main Page for reference on available Events and their eventData
    SubscribeToEvent(draggableFish, E_DRAGBEGIN, HANDLER(HelloGUI, HandleDragBegin));
    SubscribeToEvent(draggableFish, E_DRAGMOVE, HANDLER(HelloGUI, HandleDragMove));
    SubscribeToEvent(draggableFish, E_DRAGEND, HANDLER(HelloGUI, HandleDragEnd));
}

void FileSelector::RefreshFiles()
{
    FileSystem* fileSystem = GetSubsystem<FileSystem>();

    ignoreEvents_ = true;

    fileList_->RemoveAllItems();
    fileEntries_.Clear();

    Vector<String> directories;
    Vector<String> files;
    fileSystem->ScanDir(directories, path_, "*", SCAN_DIRS, false);
    fileSystem->ScanDir(files, path_, GetFilter(), SCAN_FILES, false);

    fileEntries_.Reserve(directories.Size() + files.Size());

    for (unsigned i = 0; i < directories.Size(); ++i)
    {
        FileSelectorEntry newEntry;
        newEntry.name_ = directories[i];
        newEntry.directory_ = true;
        fileEntries_.Push(newEntry);
    }

    for (unsigned i = 0; i < files.Size(); ++i)
    {
        FileSelectorEntry newEntry;
        newEntry.name_ = files[i];
        newEntry.directory_ = false;
        fileEntries_.Push(newEntry);
    }

    // Sort and add to the list view
    // While items are being added, disable layout update for performance optimization
    Sort(fileEntries_.Begin(), fileEntries_.End(), CompareEntries);
    UIElement* listContent = fileList_->GetContentElement();
    listContent->DisableLayoutUpdate();
    for (unsigned i = 0; i < fileEntries_.Size(); ++i)
    {
        String displayName;
        if (fileEntries_[i].directory_)
            displayName = "<DIR> " + fileEntries_[i].name_;
        else
            displayName = fileEntries_[i].name_;

        Text* entryText = new Text(context_);
        fileList_->AddItem(entryText);
        entryText->SetText(displayName);
        entryText->SetStyle("FileSelectorListText");
    }
    listContent->EnableLayoutUpdate();
    listContent->UpdateLayout();

    ignoreEvents_ = false;

    // Clear filename from the previous dir so that there is no confusion
    SetFileName(String::EMPTY);
    lastUsedFilter_ = GetFilter();
}

bool Console::PopulateInterpreter()
{
    interpreters_->RemoveAllItems();

    EventReceiverGroup* group = context_->GetEventReceivers(E_CONSOLECOMMAND);
    if (!group || group->receivers_.Empty())
        return false;

    Vector<String> names;
    for (unsigned i = 0; i < group->receivers_.Size(); ++i)
    {
        Object* receiver = group->receivers_[i];
        if (receiver)
            names.Push(receiver->GetTypeName());
    }
    Sort(names.Begin(), names.End());

    unsigned selection = M_MAX_UNSIGNED;
    for (unsigned i = 0; i < names.Size(); ++i)
    {
        const String& name = names[i];
        if (name == commandInterpreter_)
            selection = i;
        Text* text = new Text(context_);
        text->SetStyle("ConsoleText");
        text->SetText(name);
        interpreters_->AddItem(text);
    }

    const IntRect& border = interpreters_->GetPopup()->GetLayoutBorder();
    interpreters_->SetMaxWidth(interpreters_->GetListView()->GetContentElement()->GetWidth() + border.left_ + border.right_);
    bool enabled = interpreters_->GetNumItems() > 1;
    interpreters_->SetEnabled(enabled);
    interpreters_->SetFocusMode(enabled ? FM_FOCUSABLE_DEFOCUSABLE : FM_NOTFOCUSABLE);

    if (selection == M_MAX_UNSIGNED)
    {
        selection = 0;
        commandInterpreter_ = names[selection];
    }
    interpreters_->SetSelection(selection);

    return true;
}

void Console::HandlePostUpdate(StringHash eventType, VariantMap& eventData)
{
    if (!rowContainer_->GetNumChildren())
        return;

    rowContainer_->DisableLayoutUpdate();

    for (unsigned i = 0; i < pendingRows_.Size(); ++i)
    {
        rowContainer_->RemoveChildAtIndex(0);
        Text* text = rowContainer_->CreateChild<Text>();
        text->SetText(pendingRows_[i].second_);
        // Make error message highlight
        text->SetStyle(pendingRows_[i].first_ == LOG_ERROR ? "ConsoleHighlightedText" : "ConsoleText");
    }

    pendingRows_.Clear();

    rowContainer_->EnableLayoutUpdate();
    rowContainer_->UpdateLayout();
}

void Console::HandlePostUpdate(StringHash eventType, VariantMap& eventData)
{
    // Ensure UI-elements are not detached
    if (!background_->GetParent())
    {
        UI* ui = GetSubsystem<UI>();
        UIElement* uiRoot = ui->GetRoot();
        uiRoot->AddChild(background_);
        uiRoot->AddChild(closeButton_);
    }

    if (!rowContainer_->GetNumItems() || pendingRows_.Empty())
        return;

    printing_ = true;
    rowContainer_->DisableLayoutUpdate();

    Text* text = nullptr;
    for (unsigned i = 0; i < pendingRows_.Size(); ++i)
    {
        rowContainer_->RemoveItem((unsigned)0);
        text = new Text(context_);
        text->SetText(pendingRows_[i].second_);

        // Highlight console messages based on their type
        text->SetStyle(logStyles[pendingRows_[i].first_]);

        rowContainer_->AddItem(text);
    }

    pendingRows_.Clear();

    rowContainer_->EnsureItemVisibility(text);
    rowContainer_->EnableLayoutUpdate();
    rowContainer_->UpdateLayout();
    UpdateElements();   // May need to readjust the height due to scrollbar visibility changes
    printing_ = false;
}

void UIDrag::CreateGUI()
{
    ResourceCache* cache = GetSubsystem<ResourceCache>();
    UI* ui = GetSubsystem<UI>();

    UIElement* root = ui->GetRoot();
    // Load the style sheet from xml
    root->SetDefaultStyle(cache->GetResource<XMLFile>("UI/DefaultStyle.xml"));

    for (int i=0; i < 10; i++)
    {
        Button* b = new Button(context_);
        root->AddChild(b);
        // Reference a style from the style sheet loaded earlier:
        b->SetStyle("Button");
        b->SetSize(300, 100);
        b->SetPosition(IntVector2(50*i, 50*i));

        if (i % 2 == 0)
            b->AddTag("SomeTag");

        SubscribeToEvent(b, E_DRAGMOVE, URHO3D_HANDLER(UIDrag, HandleDragMove));
        SubscribeToEvent(b, E_DRAGBEGIN, URHO3D_HANDLER(UIDrag, HandleDragBegin));
        SubscribeToEvent(b, E_DRAGCANCEL, URHO3D_HANDLER(UIDrag, HandleDragCancel));
        SubscribeToEvent(b, E_DRAGEND, URHO3D_HANDLER(UIDrag, HandleDragEnd));

        {
            Text* t = new Text(context_);
            b->AddChild(t);
            t->SetStyle("Text");
            t->SetHorizontalAlignment(HA_CENTER);
            t->SetVerticalAlignment(VA_CENTER);
            t->SetName("Text");
        }

        {
            Text* t = new Text(context_);
            b->AddChild(t);
            t->SetStyle("Text");
            t->SetName("Event Touch");
            t->SetHorizontalAlignment(HA_CENTER);
            t->SetVerticalAlignment(VA_BOTTOM);
        }

        {
            Text* t = new Text(context_);
            b->AddChild(t);
            t->SetStyle("Text");
            t->SetName("Num Touch");
            t->SetHorizontalAlignment(HA_CENTER);
            t->SetVerticalAlignment(VA_TOP);
        }
    }

    for (int i = 0; i < 10; i++)
    {
        Text* t = new Text(context_);
        root->AddChild(t);
        t->SetStyle("Text");
        t->SetName("Touch "+ String(i));
        t->SetVisible(false);
    }
}