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undo: make picture (media) deletion undoable

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The code is rather complex. Firstly, we have different representations
of pictures throughout the code. Secondly, this tries to do add the
pictures in batches to the divepicture model and that is always rather
tricky.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2020-04-17 23:18:58 +02:00 • committed by Dirk Hohndel
parent 9962d47b56
commit 434644b381
13 changed files with 286 additions and 54 deletions
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13
commands/command_pictures.h
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@ -5,6 +5,7 @@
#define COMMAND_PICTURES_H
#include "command_base.h"
#include "command.h" // for PictureListForDeletion/Addition
// We put everything in a namespace, so that we can shorten names without polluting the global namespace
namespace Command {
@ -22,5 +23,17 @@ private:
bool workToBeDone() override;
};
class RemovePictures final : public Base {
public:
RemovePictures(const std::vector<PictureListForDeletion> &pictures);
private:
std::vector<PictureListForDeletion> picturesToRemove; // for redo
std::vector<PictureListForAddition> picturesToAdd; // for undo
void undo() override;
void redo() override;
bool workToBeDone() override;
};
} // namespace Command
#endif