### 2.2. Image Window

GIMP user interface is available in two modes: single-window mode (default), and multi-windows mode that you can get unchecking the Windows → Single-Window Mode option.

When you start GIMP without any image open, the image window seems to be absent in single-window mode, while, in multi-window mode, an image window exists, even if no image is open.

We will begin with a brief description of the components that are present by default in an ordinary image window. Some of the components can be removed by using commands in the View menu.

Şekil 3.5. The Image Area in Single-Window Mode

Şekil 3.6. The Image Window in Multi-Window Mode

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Despite Single-window Mode, we will use “image window” for “image area”.

1. Title Bar: The Title Bar in an image window without an image displays “GNU Image Manipulating Program”. An image window with an image displays the image name and its specifications in the title bar according to the settings in Preferences Dialog. The Title Bar is provided by the operating system, not by GIMP, so its appearance is likely to vary with the operating system, window manager, and/or theme.

   If you have opened a non-xcf image, it is “(imported)” as a .xcf file and its original name appears in the status bar at the bottom of the image window.

   When an image is modified, an asterisk appears in front of its title.

2. Main Menu: Directly below the Title Bar appears the Menu bar (unless it has been suppressed). The Main Menu provides access to nearly every operation you can perform on an image. You can also right-click on an image to display a pop-up menu, [1], or by left-clicking on the little “arrow-head” symbol in the upper left corner, called Menu Button, described just below. Many menu commands are also associated with keyboard shortcuts as shown in the menu. You can define your own custom shortcuts for menu actions in the Keyboard Shortcuts Dialog.

3. Menu Button: Click the Menu Button to display the Main Menu in a column, (essential in full screen mode). If you like to use keyboard shortcuts, use Shift+F10 to open the menu.

4. Ruler: In the default layout, rulers are shown above and to the left of the image. Use the rulers to determine coordinates within the image. The default unit for rulers is pixels; use the settings described below to use a unit other than pixels.

   One of the most important uses of rulers is to create guides. Click and drag a ruler into the image to create a guide. A guide is a line that helps you accurately position thingsor verify that another line is truly horizontal or vertical. Using the Move tool, you can click and drag a guide. Drag a guide out of the image to delete it; you can always drag another guide into the image. You can even use multiple guides at the same time.

   In ruler area, the mouse pointer position is marked with two small arrow-heads pointing vertically and horizontally.

5. Quick Mask Toggle: The small button in the lower left corner of the image toggles the Quick Mask on and off. When the Quick Mask is on, the button is outlined in red. See Quick Mask for more details on this highly useful tool.

6. Pointer Coordinates: When the pointer (mouse cursor, if you are using a mouse) is within the image boundaries, the rectangular area in the lower left corner of the window displays the current pointer coordinates. The units are the same as for the rulers.

7. Units Menu: Use the Units Menu to change the units used for rulers and several other purposes. The default unit is pixels, but you can quickly change to inches, cm, or several other possibilities using this menu. Note that the setting of “Dot for dot” in the View menu affects how the display is scaled: see Dot for Dot for more information.

8. Zoom Button: There are a number of ways to zoom the image in or out, but the Zoom Button is perhaps the simplest. You can directly enter a zoom level in the text box for precise control.

9. Status Area: The Status Area is at the bottom of the image window. By default, the Status Area displays the original name of the image.xcf file, and the amount of system memory used by the image. Please use Edit → Preferences → Image Windows → Title & Status to customize the information displayed in the Status Area. During time-consuming operations, the status area temporarily shows the running operation and how complete the operation is.

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   Note that the memory used by the image is very different from the image file size. For instance, a 70 kB .PNG image may occupy 246 kB in RAM when displayed. There are two primary reasons the difference in memory usage. First, a .PNG file is compressed format, and the image is reconstituted in RAM in uncompressed form. Second, GIMP uses extra memory, and copies of the image, for use by the Undo command.

10. Cancel Button: During complex time-consuming operations, usually a plug-in, a Cancel button temporarily appears in the lower right corner of the window. Use the Cancel button to stop the operation.

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    A few plug-ins respond badly to being canceled, sometimes leaving corrupted pieces of images behind.

11. Navigation Control: This is the button at the lower right corner of the image window. Click and hold (do not release the mouse button) on the navigation control to display the Navigation Preview. The Navigation Preview has a miniature view of the image with the displayed area outlined. Use the Navigation Preview to quickly pan to a different part of the imagemove the mouse while keeping the button pressed. The Navigation Window is often the most convenient way to quickly navigate around a large image with only a small portion displayed. See Navigation Dialog for other ways to access the Navigation Window.

12. Inactive Padding Area: When the image dimensions are smaller than the image window, this padding area separates the active image display from the rest of the user interface, so you're able to distinguish between them. You cannot apply any Filters or Operations in general to the inactive area.

13. Image Display: The most important part of the image window is, of course, the image display or canvas. It occupies the central area of the window, surrounded by a yellow dotted line showing the image boundary, against a neutral gray background.

    Besides the Navigation Control mentioned above, you can also pan across the image using a keyboard or mouse directly:

    - Hold the Shift key, then use the arrow keys to pan the view in that direction.

    - Use the scroll wheel on your mouse to pan the image vertically (up or down); hold the Shift key while using the scroll wheel to pan horizontally (left or right) instead.

    - If your mouse has a middle-button, click and drag with it to pan across the image.

    - Alternatively, you can press and hold Spacebar in combination with moving the mouse.

    You can change the zoom level of the image display in a variety of ways, including using the Zoom Button mentioned above, and the Zoom setting described below. Other ways of adjusting the zoom are using Ctrl mousewheel, using the Zoom commands in the View menu, and using the Zoom Tool.

14. Image Window Resize Toggle: Without enabling this feature, if you change the size of the image window by click-and-dragging border limits, the image size and zoom does not change. If you make the window larger, for example, then you will see more of the image. If this button is pressed, however, the image resizes when the window resizes so that (mostly) the same portion of the image is displayed before and after the window is resized.

| İpucu
Drag and drop an image into the Toolbox window from a file browser to open the image in its own Image window or tab. Dragging an image file into the Layers dialog adds it to the image as a new layer.

Image size and image window size can be different. You can make image fit window, and vice versa, using two keyboard shortcuts:

- Ctrl+J: this command keeps the zoom level; it adapts window size to image size. The Shrink Wrap command does the same.

- Ctrl+Shift+J: this command modifies the zoom level to adapt the image display to the window.

[1] Users with an Apple Macintosh and a one button mouse can use Ctrl+Mouse Button instead.

2. Main Windows |  | 2.3. Dialogs and Docking

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