Small image pack editor improvements

- add missing mimetype
- allow removal of images from pack
- allow GIF as a format
- don't divide size by 2 if the image is very small already

resources/qml/dialogs/ImagePackEditorDialog.qml

@@ -90,7 +90,7 @@ ApplicationWindow {
 
                         folder: StandardPaths.writableLocation(StandardPaths.PicturesLocation)
                         fileMode: FileDialog.OpenFiles
-                        nameFilters: [qsTr("Stickers (*.png *.webp)")]
+                        nameFilters: [qsTr("Stickers (*.png *.webp *.gif)")]
                         onAccepted: imagePack.addStickers(files)
                     }
 
@@ -265,6 +265,21 @@ ApplicationWindow {
                         Layout.alignment: Qt.AlignRight
                     }
 
+                    MatrixText {
+                        text: qsTr("Remove from pack")
+                    }
+
+                    Button {
+                        text: qsTr("Remove")
+                        onClicked: {
+                            let temp = currentImageIndex;
+                            currentImageIndex = -1;
+                            imagePack.remove(temp);
+                        }
+                        Layout.alignment: Qt.AlignRight
+                    }
+
+
                     Item {
                         Layout.columnSpan: 2
                         Layout.fillHeight: true

src/SingleImagePackModel.cpp

@@ -310,11 +310,15 @@ SingleImagePackModel::addStickers(QList<QUrl> files)
                 auto sz = img.size() / 2;
                 if (sz.width() > 512 || sz.height() > 512) {
                         sz.scale(512, 512, Qt::AspectRatioMode::KeepAspectRatio);
+                } else if (img.height() < 128 && img.width() < 128) {
+                        sz = img.size();
                 }
 
                 info.h    = sz.height();
                 info.w    = sz.width();
                 info.size = bytes.size();
+                info.mimetype =
+                  QMimeDatabase().mimeTypeForFile(f.toLocalFile()).name().toStdString();
 
                 auto filename = f.fileName().toStdString();
                 http::client()->upload(
@@ -334,6 +338,19 @@ SingleImagePackModel::addStickers(QList<QUrl> files)
                   });
         }
 }
+
+void
+SingleImagePackModel::remove(int idx)
+{
+        if (idx < (int)shortcodes.size() && idx >= 0) {
+                beginRemoveRows(QModelIndex(), idx, idx);
+                auto s = shortcodes.at(idx);
+                shortcodes.erase(shortcodes.begin() + idx);
+                pack.images.erase(s);
+                endRemoveRows();
+        }
+}
+
 void
 SingleImagePackModel::addImageCb(std::string uri, std::string filename, mtx::common::ImageInfo info)
 {

src/SingleImagePackModel.h

@@ -69,6 +69,7 @@ public:
 
         Q_INVOKABLE void save();
         Q_INVOKABLE void addStickers(QList<QUrl> files);
+        Q_INVOKABLE void remove(int index);
 
 signals:
         void globallyEnabledChanged();