4. Image Management Related Dialogs

4.1. Dialog Buffery

Obrázek 15.69. Dialog buffery

Dialog buffery

Buffers are a kind of temporary storage for image data, created when you cut or copy part of a drawable (a layer, layer mask, etc.). The following commands are available from the Edit menu to save an image to a buffer:

Cut Named...

EditBufferCut Named... This command cuts the selected part from the current drawable (usually a layer) and places it in a buffer. If there is no selection the whole drawable will be used. You will be asked to give the buffer a name. The image will be removed from the selection after this is done.

Copy Named...

EditBufferCopy Named... This command copies the selected part from the current drawable (usually a layer) and places it in a buffer. If there is no selection the whole drawable will be used. You will be asked to give the buffer a name.

Copy Visible Named...

EditBufferCopy Visible Named... This command copies the selected part from all the visible drawables and places it in a buffer. If there is no selection the whole image will be used. You will be asked to give the buffer a name.

Paste Named...

EditBufferPaste Named... This menu command opens the Buffers Dialog. To actually paste a buffer, choose one of the buttons from this dialog, or the context menu. Both of which will be explained below.

The Buffers dialog shows you the contents of all existing named buffers, and allows you to operate on them in several ways. It also shows you, at the top, the contents of the Global Buffer (the contents of the clipboard). This Global Buffer is merely a display: you can't do anything with it. There is no hard limit on the number of named buffers you can create, except that it will consume a share of your available computer memory.

[Výstraha] Výstraha

Named buffers are not saved across sessions: they will be gone when you close GIMP. The only way to save their contents is to paste them into images.

4.1.1. Aktivace dialogu

This dialog is a dockable dialog; see the section 2.3 – „Dokování dialogů“ for help on manipulating it.

You can access it:

  • from the main menu: EditBufferPaste Named...;

  • from the main menu: WindowsDockable DialogsBuffers;

  • from the Tab menu in any dockable dialog by clicking on and selecting Add TabBuffers.

In the Windows menu, there is a list of detached windows which exists only if at least one dialog remains open. In this case, you can raise the Buffers dialog from the image-menu: WindowsBuffers.

4.1.2. Používání dialogu Buffery

Clicking on a buffer in the display area makes it the active buffer, i.e., the one that will be used for paste commands executed from the Buffers context menu, or the buttons at the bottom of the dialog. Double-clicking on a buffer causes its contents to be pasted to the active image as a floating selection; this is a quick way of executing the Paste Buffer command.

At the bottom of the dialog are five buttons. The operations they perform can also be accessed from the Buffers Menu that you get by right clicking on the active buffer.

Obrázek 15.70. Dialog Buffery v režimu mřížky

Dialog Buffery v režimu mřížky

In the Tab menu for the Buffers dialog, you can choose between View as Grid and View as List. In Grid mode, the buffers are laid out in a rectangular array. In List mode, they are lined up vertically, with each row showing a thumbnail of the contents of the buffer, its name, and its pixel dimensions.

[Tip] Tip

Ctrl+F opens a search field. See Zobrazit jako seznam; Zobrazit jako mřížku

Velikost náhledů bufferů v dialogu můžete změnit pomocí podnabídky Velikost náhledu v nabídce karty tohoto dialogu.

4.1.2.1. Buttons at the bottom

At the bottom of the dialog you find a couple of buttons:

Vložit buffer, Paste Buffer In Place

Tento příkaz vloží obsah zvoleného bufferu do aktivního obrázku jako plovoucí výběr. Jediný rozdíl mezi tímto příkazem a běžným příkazem Vložit je ten, že místo globálního bufferu schránky používá zvolený pojmenovaný buffer.

With the Shift key pressed, it pastes the buffer at its original location.

Paste Buffer Into The Selection, Paste Buffer Into The Selection In Place

This command pastes the contents of the selected buffer into the active image's selection, as a floating selection. The only difference between this and the ordinary Paste Into Selection command is that it uses the selected buffer rather than the global clipboard buffer.

With the Shift key pressed, it pastes the buffer into the active selection at its original location.

Paste Buffer as New Layer, Paste Buffer as New Layer in Place

This command creates a new layer in the active image out of the contents of the selected buffer. The only difference between this and the ordinary Paste as New Image command is that it uses the selected buffer rather than the content of the global clipboard buffer.

With the Shift key pressed, it creates the layer at the original location of the buffer.

Paste Buffer as New Image

This command creates a new single-layer image out of the contents of the selected buffer. The only difference between this and the ordinary Paste as New Image command is that it uses the selected buffer rather than the content of the global clipboard buffer.

Odstranit buffer

Tento příkaz smaže zvolený pojmenovaný buffer. GIMP se neptá na potvrzení této akce. Globální buffer smazat nejde.

4.1.2.2. Buffers Dialog Context menu

Obrázek 15.71. The Buffers context menu

The „Buffers“ context menu

These commands are the same as available through the buttons at the bottom of the dialog and are explained there.