void selectionChanged() override
{
// we're only really interested in when the selection changes, regardless of if it was
// clicked or not so we'll only override this method
const File selectedFile (fileTree.getSelectedFile());
if (selectedFile.existsAsFile())
imagePreview.setImage (ImageCache::getFromFile (selectedFile));
// the image cahce is a handly way to load images from files or directly from memory and
// will keep them hanging around for a few seconds in case they are requested elsewhere
}
//takes an XML element definition and creates an object from it
GuiComponent* ThemeComponent::createElement(pugi::xml_node data, GuiComponent* parent)
{
std::string type = data.child("type").text().get();
if(type == "image")
{
std::string path = expandPath(data.child("path").text().get());
if(!boost::filesystem::exists(path))
{
LOG(LogError) << "Error - theme image \"" << path << "\" does not exist.";
return NULL;
}
std::string pos = data.child("pos").text().get();
std::string dim = data.child("dim").text().get();
std::string origin = data.child("origin").text().get();
bool tiled = data.child("tiled") != 0;
//split position and dimension information
std::string posX, posY;
splitString(pos, ' ', &posX, &posY);
std::string dimW, dimH;
splitString(dim, ' ', &dimW, &dimH);
std::string originX, originY;
splitString(origin, ' ', &originX, &originY);
//resolve to pixels from percentages/variables
int x = (int)(resolveExp(posX) * Renderer::getScreenWidth());
int y = (int)(resolveExp(posY) * Renderer::getScreenHeight());
int w = (int)(resolveExp(dimW) * Renderer::getScreenWidth());
int h = (int)(resolveExp(dimH) * Renderer::getScreenHeight());
float ox = strToFloat(originX);
float oy = strToFloat(originY);
ImageComponent* comp = new ImageComponent(mWindow, x, y, "", w, h, true);
comp->setOrigin(ox, oy);
comp->setTiling(tiled);
comp->setImage(path);
addChild(comp);
return comp;
}
LOG(LogError) << "Theme component type \"" << type << "\" unknown!";
return NULL;
}
void handleAsyncUpdate() override
{
if (incomingImage.isValid())
lastSnapshot.setImage (incomingImage);
}