Thread for generating thumbnail images;

Used for card list; Implemented reordering from card list git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@115 0fc631ac-6414-0410-93d0-97cfa31319b6
2026-06-11 13:17:00 -04:00 · 2006-12-18 19:30:44 +00:00
parent 0e77c55525
commit 4c10107dbb
17 changed files with 660 additions and 82 deletions
@@ -0,0 +1,110 @@
+//+----------------------------------------------------------------------------+
+//| Description:  Magic Set Editor - Program to make Magic (tm) cards          |
+//| Copyright:    (C) 2001 - 2006 Twan van Laarhoven                           |
+//| License:      GNU General Public License 2 or later (see file COPYING)     |
+//+----------------------------------------------------------------------------+
+
+// ----------------------------------------------------------------------------- : Includes
+
+#include <gui/control/image_card_list.hpp>
+#include <gui/thumbnail_thread.hpp>
+#include <data/field/image.hpp>
+#include <data/game.hpp>
+#include <data/card.hpp>
+#include <gfx/gfx.hpp>
+
+DECLARE_TYPEOF_COLLECTION(FieldP);
+
+// ----------------------------------------------------------------------------- : ImageCardList
+
+ImageCardList::ImageCardList(Window* parent, int id, long additional_style)
+	: CardListBase(parent, id, additional_style)
+{}
+
+ImageCardList::~ImageCardList() {
+	thumbnail_thread.abort(this);
+}
+void ImageCardList::onRebuild() {
+	image_field = findImageField();
+}
+void ImageCardList::onBeforeChangeSet() {
+	CardListBase::onBeforeChangeSet();
+	// remove all but the first two (sort asc/desc) images from image list
+	wxImageList* il = GetImageList(wxIMAGE_LIST_SMALL);
+	while (il && il->GetImageCount() > 2) {
+		il->Remove(2);
+	}
+	thumbnail_thread.abort(this);
+	thumbnails.clear();
+}
+
+ImageFieldP ImageCardList::findImageField() {
+	FOR_EACH(f, set->game->card_fields) {
+		ImageFieldP imgf = dynamic_pointer_cast<ImageField>(f);
+		if (imgf) return imgf;
+	}
+	return ImageFieldP();
+}
+
+/// A request for a thumbnail of a card image
+class CardThumbnailRequest : public ThumbnailRequest {
+  public:
+	CardThumbnailRequest(ImageCardList* parent, const String& filename)
+		: ThumbnailRequest(
+			parent,
+			_("card") + parent->set->absoluteFilename() + _("-") + filename,
+			wxDateTime::Now())	// TODO: Find mofication time of card image
+		, filename(filename)
+	{}
+	virtual Image generate() {
+		ImageCardList* parent = (ImageCardList*)owner;
+		Image image;
+		if (image.LoadFile(*parent->set->openIn(filename))) {
+			// two step anti aliased resampling
+			image.Rescale(36, 28); // step 1: no anti aliassing
+			Image image2(18, 14, false); // step 2: with anti aliassing
+			resample(image, image2);
+			return image2;
+		} else {
+			return Image();
+		}
+	}
+	virtual void store(const Image& img) {
+		// add finished bitmap to the imagelist
+		ImageCardList* parent = (ImageCardList*)owner;
+		if (img.Ok()) {
+			wxImageList* il = parent->GetImageList(wxIMAGE_LIST_SMALL);
+			int id = il->Add(wxBitmap(img));
+			parent->thumbnails.insert(make_pair(filename, id));
+			parent->Refresh(false);
+		}
+	}
+  private:
+	String filename;
+};
+
+int ImageCardList::OnGetItemImage(long pos) const {
+	if (image_field) {
+		// Image = thumbnail of first image field of card
+		ImageValue& val = static_cast<ImageValue&>(*getCard(pos)->data[image_field]);
+		if (!val.filename) return -1; // no image
+		// is there already a thumbnail?
+		map<String,int>::const_iterator it = thumbnails.find(val.filename);
+		if (it != thumbnails.end()) {
+			return it->second;
+		} else {
+			// request a thumbnail
+			thumbnail_thread.request(new_shared2<CardThumbnailRequest>(const_cast<ImageCardList*>(this), val.filename));
+		}
+	}
+	return -1;
+}
+
+void ImageCardList::onIdle(wxIdleEvent&) {
+	thumbnail_thread.done(this);
+}
+
+
+BEGIN_EVENT_TABLE(ImageCardList, CardListBase)
+	EVT_IDLE	   (ImageCardList::onIdle)
+END_EVENT_TABLE  ()