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+Add-ons+Much of ArtPaint's functionality comes through add-ons. Add-ons are small programs that ArtPaint can load to do some specific job. Everyone can make their own add-ons with the help of ArtPaint Add-on Developer Kit (to be released soon), and some knowledge of programming the BeOS. The add-ons can be accessed through paint-window's Add-Ons-menu. Currently all add-ons affect only one layer at a time. + +Descriptions of the included add-ons+This part briefly describes the add-ons that were included with the BeOS version. +Currently it doesn't quite match the ones available as yet in Haiku. +
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+Airbrush-tool+The airbrush-tool simulates an airbrush. The tool is used by pressing the mouse-button over the image and moving the mouse to locations where the airbrush should be applied. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for airbrush-tool. +
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+Blur-tool+The blur-tool is used to blur parts of the image. The tool is used by pressing the mouse-button over the image and moving the mouse around to the parts that need to be blurred. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for the blur-tool. +
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+Brush-tool+The brush-tool uses user-defined brushes to paint on the image. The tool is used by clicking on the image and moving the mouse to produce a free-hand line. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for brush-tool. +
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+The image at left top is preview of the brush. The red line beneath the brush shows the scale of the preview. If the line is full width, the brush is in actual size. If the line is half width, the preview is only half of the brush's actual size. The brush can be rotated to different orientations by clicking on its image and moving the mouse. + +
Brush-window+The brush window is used as a storage for brushes. You can select brush to be used by clicking on it in the brush window. You can also delete the currently selected brush from the brush-window with the menu-item or by pressing delete-key when the brush-window is active. Figure 2 shows the brush-window. +
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+Color Selector -tool+Color selector -tool selects colors from the image. It is used by clicking on the image over the color that needs to be selected. The selected color will then become the new foreground-color. If the mouse is moved over the image while the button is held down, a window will pop up showing in RGB-coordinates the color that is under the cursor. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for the color selector -tool. +
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+Colors+ArtPaint offers many possibilities for selecting colors. Colors can be picked from a user-defined color set, or they can be mixed with sliders using one of the various supplied color-models or the color can be picked straight from the image using the color selector -tool. +Foreground- and Background-color+Foreground-color is the color that is used by the tools to do the drawing. The background color is used by the eraser-tool and is used as the color to clear the image to. Also some add-ons might use the background color. +If the color is selected with the primary mouse button it will become the foreground-color. If it is selected with some other mouse button it will become the background-color. ++ Color sets+Color sets are collections of colors that can be edited. This way the most frequently needed colors can be stored. Each color set can have between 8 to 64 colors. Color sets can be also saved to disk for later use. ++ Color-window+Color-window is the place where new colors can be created with sliders and color-sets can be modified or new sets created. Figure 1 shows what the color-window looks like. + +
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+The left side of the color-window contains a grid which contains some colors. The colors in this grid are called a color-set. The long bars in the middle are color-sliders that are used to adjust the color. On the right is a box that reflects the currently adjusted color. + +On the left side of the color-sliders are four letters indicating what color-model is being used. The lowest letter is always 'A', which stands for alpha. Alpha is rather technical term, but it actually means just transparency of the color. If the slider is on the left, then the color is fully transparent, if the slider is on the right, the color is fully visible. A transparent color will have a black-and-white checkerboard pattern that shows underneath the color. + +The top three sliders control how the color looks like. What these sliders do depend on the selected color-model. The color-model can be changed from color-window's Mode-menu. The different color-models are summarized below: +
+You can adjust all of the color sliders (but not alpha) at once to the same value by pressing down left shift before sliding. To adjust the values relative to each other, press down left control instead. This is especially useful with the RGB- and CMY-models. + +The color sets can be adjusted by clicking on one of the colors and then adjusting the color with a slider. The color can also be copied from color set to another location by clicking on the color and dragging it there. + +The Set-menu in the color-window allows you to create new color-sets and to delete existing ones. It also allows you to save the sets to disk. The current state of the sets is always saved also automatically when the program is quit. + +The two arrows below the color set allow for changing between different color sets. The active color set along with the arrows is duplicated in the status-bar of every paint-window to allow quicker selection of colors. + + |
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+Ellipse-tool+The ellipse-tool is used to draw filled and outlined ellipses to the image. It is used by pressing down the mouse-button and dragging the mouse around. A preview of the ellipse is rendered on the screen and when the mouse-button is released, the actual ellipse is drawn. + +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for the ellipse-tool. +
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+Eraser-tool+The eraser-tool erases the contents of image for some part. The tool is used by clicking on the image on the part that needs erasing. The shape of erased area is circular. The eraser can then be moved along the surface of the image to erase it further. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for the eraser-tool. +
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+Fill-tool+The fill tool is used to fill a region of the image with a single color or with a gradient of two colors. The fill with single color is done by clicking on the image inside the area that needs to be filled. Filling the gradient is done by clicking on the area to be filled, holding down the button and adjusting the gradient by moving the mouse. The gradient will be finished when the mouse-button is released. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for the fill-tool. +
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+Free Line -tool+The free line -tool is the basic tool for painting freehand lines. The tool is used by pressing and holding the mouse-button in the image and then moving the mouse. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for the free line -tool. +
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+Hairy Brush -tool+The hairy brush -tool creates a brush stroke by simulating the motions of individual hairs of a brush. The tool is used by clicking on the image and moving the mouse around to produce a free-hand line. When the mouse is moved faster the produced line is thinner than when the mouse is moved slowly. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for hairy brush -tool. +
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+Image Processing+ +This section describes the basic image-processing operations available in ArtPaint. Most of the operations can be applied to a single layer or to all layers at the same time. Note that much of the image-processing functionality is in the add-ons which are described separately. ++ Rotation+Rotation is an operation which changes the orientation of the image. Two parameters need to be supplied: the center of rotation (by default is the center of the image) and the angle of rotation. The center of rotation can be adjusted by clicking on the cross that appears on the image and dragging it to another location (it can be changed also by using the secondary mouse-button). The angle can be set by clicking on the image with the primary mouse-button and moving the cursor around. The angle can also be set by entering a number in the text-field in the right side of the status-bar. After the proper rotation is set it can be confirmed with the OK-button on the status-bar. The rotation can also be confirmed by starting some other image processing operation. If the rotation is not what is wanted it can be cancelled from the Cancel-button on the status-bar. ++Related menu-items: +
Translation+Translation is an operation which moves the image to another location. Two parameters need to be supplied: translation in x-direction and translation in y-direction. These can be adjusted by clicking on the image and dragging the mouse. They can also be adjusted with the text-fields in the right side of the status-bar. . After the proper translation is set it can be confirmed with the OK-button on the status-bar. The translation can also be confirmed by starting some other image processing operation. If the translation is not what is wanted it can be cancelled from the Cancel-button on the status-bar. ++Related menu-items: +
Scaling+Scaling changes the size of the image. When this operation is applied, a window is opened that contains controls for settings the new dimensions of the image. The window also contains a checkbox labeled "Lock Proportions". Checking this button forces the scaling to be proportional in x- and y-directions. In addition to adjusting the dimension from the controls in the window, they can be adjusted by clicking on the image and moving the mouse. If the checkbox is unchecked both dimensions can be scaled independently of each other. The scaling can be confirmed by pressing the OK-button in the scaling-window. If there are any selections made they will be cleared when the scaling is done. The scaling operation applies to all layers at once. ++Related menu-item: +
Cropping+Cropping changes the positions of the borders of the image. When this operation is applied, a window is opened that contains controls for settings the new border locations. Also the borders are drawn on the image and they can be moved to set the new border locations. Cropping can be used not only to make the image smaller, but also to extend it. The cropping can be confirmed by pressing the OK-button in the cropping-window. If there are any selections made they will be cleared when the cropping is done. The cropping operation applies to all layers at once. ++Related menu-item: +
Flipping+Flipping flips the image either horizontally or vertically. Flipping is like having an image on a transparent slide and flipping it over. Currently this operation does not care about selections, but this will change in the future however. ++Related menu-items: +
Changing Layer Transparency+Although changing the layer transparency is not strictly an image-processing operation, it is documented here. This operation changes the overall transparency of the currently active layer and it does not care about the selections. ++Related menu-item: +
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+Layers+Layers is a concept that allows for a lot of flexibility in image creation and manipulation. In short: layers allow the image to consist of multiple individual layers that can be painted and manipulated independently of each other. A layer can be thought of as a transparent slide that shows through what is underneath it except for the parts that are fully covered with paint. Only one layer can be active at a time. This means that painting operations affect only one layer. Some image-processing operations affect all layers no matter what layer is actually active. ++The layers in ArtPaint have the following features: +
+Currently most of the painting that can be done to a layer is replacement painting. This means that whatever color was in the layer gets replaced by the new color when it is being painted. This means that in order to get a semi-transparent part in the image multiple layers must be used. + + The Layer-window+The place where the layers can be controlled is the layer-window, which is pictured in figure 1. +
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+The layer window displays layers for the currently active paint-window (or the window that was last active). At the top of the window is a thumbnail of the image. Below that is area for layers. Each layer has its own rectangle-shaped entry in that area. The active layer is marked with darker grey background and a blue rectangle around the thumbnail-image. On the left side of the layer's area is the thumbnail-image of that layer's contents. You can drag this image to a paint-window to copy the layer there. On the right side is a checkbox for controlling whether the layer should be visible or not. By pressing primary mouse-button in the grey area and dragging up or down the layers can be reordered. By pressing secondary mouse-button over the grey area you can bring up a pop-up-menu for controlling the layer operations (it can be brought up also by pressing the primary mouse-button while holding down a modifier-key on the keyboard). Figure 2 shows this menu. + +
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+The menu-items "Merge With Front Layer" and "Merge With Back Layer" merge the layer with its neighbor. Merging means that the two layers are removed from the image and replaced with just one layer. Front layer means the layer that is upper in the list and back layer means the layer that is lower in the list. "Add Layer In Front" and "Add Layer Behind" add a new layer behind or in front of the layer where the button was pressed in. "Duplicate Layer" duplicates the layer where the mouse-button was pressed in. "Delete Layer" removes the layer from the image. + |
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+Paint-Window+The paint-window is the central part of the program where you create the images. It also contains a menu-bar for controlling operations such as saving the image and creating new windows. In figure 1 is a picture of a paint-window. ++
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+The paint-window is divided into three distinct subsections: the canvas, the status-bar and the menu-bar. In figure 1 the canvas is the white area in the middle of the window. It is used for painting the image. The status-bar is at the bottom of the window. It contains information such as coordinates and selected colors and allows you to also zoom the view and select new colors. The menu-bar can be used to invoke many operations, such as opening new windows and saving the image. + + The canvas+The canvas is the area where you can paint your image. When a paint-window is first opened it does not have a canvas. You should select a suitable canvas size and then press the "Create Canvas"-button to create a canvas for the paint-window. Figure 2 shows the controls that are available for settings the size of the canvas. ++
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+The size can be selected by settings the numbers in the two fields or by selecting one of the recently used sizes from the pop-up-list on the right. If only an approximate size is needed, it can be quickly selected by dragging the window to the required size. + +When the canvas has been created you can use any of the painting tools to paint on it. The painting tool can be used by pressing down the primary mouse-button. The secondary mouse-button brings up a pop-up-menu where you can change the active tool. + + The status-bar+The status-bar is at the bottom of the window and it displays status-information about the current state of the program. Status-bar also contains tools for zooming the image and for selecting colors. Status-bar can be in several different states depending on the state of the program. The different states of the status-bar are listed here: +
+The canvas not created -mode comes up when the window has no canvas. At this point the status-bar does not offer any functionality. This shows a message at the bottom of the bar. In most modes this place is reserved for helpful messages. + +Normal-mode is the most usual, and it comes up when the canvas has been created. It has the following components (from left to right): +
+Transform-mode comes up when you start an image transformation such as rotation or translation. This mode may also come up with some add-ons. On the right side of the status-bar are two buttons for cancelling and applying the transformation. On their left side are control-views for controlling the transform. + +Add-on mode is similar to normal-mode, but it does not display colors. The status-bar comes to this mode when you have started some add-on or for example when you are adjusting the transparency of the layer. + +Busy-mode comes up when you have selected some operation that is going to take a substantial amount of time. Usually this goes by quite quickly, but depending on the speed of the computer and the size of the image, some operations might take a while. When the status-bar is in this mode you cannot do anything to that image (but you can edit other images if you wish). + + The menu-bar+The menu-bar behaves like you would expect from a BeOS application. The following list summarizes the menu-items and describes their functionality. ++ File-menu+
Edit-menu+
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+ Add-Ons-menu+The contents of this menu varies depending on what add-ons have been installed. + ++ Help-menu+
The title-bar+Every paint-window has a title-bar like most other windows. The title-bar is shown in the following figure. ++
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+The title-bar contains three pieces of information. The star on the left tells that the project has been changed since it was last saved. The 'Untitled - 2' is the name of the project, which in this case is still unnamed. When the project is saved to disk this will change to reflect that. The 'pic00007.jpg' is the name of the picture that this project was last saved to or loaded from. + |
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+Painting Tools+Painting tools are the most important tools when creating new images. They are also useful when modifying existing images or manipulating for example scanned images. This section describes how the painting tools can be used and what options are available for each painting tool. What can be done with the painting tools is only limited by the user's imagination. However some tools fit to some jobs better than others. ++At any given moment only one painting-tool can be active. Active means that pressing the mouse-button on the image starts drawing with that tool. All of the paint-windows share the same tool. The active tool can be changed by two different methods: by clicking on the image with the secondary mouse-button and selecting the tool from the appearing pop-up-menu, or from the tool selection window. The tool selection window is pictured below. From this picture you can examine a tool closer by clicking on its icon. The tool selection window can be resized to have the tools in a single row or a column or something in between. +
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+Rectangle-tool+The rectangle-tool is used to draw filled and outlined rectangles to the image. It is used by pressing down the mouse-button and dragging the mouse around. A preview of the rectangle is rendered on the screen and when the mouse-button is released, the actual rectangle is drawn. + +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for the rectangle-tool. +
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+ | ArtPaint Reference+This section describes the features of ArtPaint. The following links lead you to descriptions of specific areas. + ++ |
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+Selections+Selections allow part of the image to be selected so that image-processing operations and painting tools affect only the selected part. The selections are made with the selector-tool. When there is no selection, everything is selected. This means that you can not make nothing to be selected. ++Selections are indicated with line that goes around the selected area. The line has a black and white pattern that moves around to make it stand out from the rest of the image. Figure 1 shows an image with a selection. + +
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+The selection affects all layers. This means that if you make a selection when certain layer is active and change then the active layer, the selection will stay the same. However the painting operations will go to that new layer just like when there is no selection at all. + +When you do operations on selections you do it just like when there is no selection. If you wish to rotate the selection, just select the appropriate item from the menu-bar. Same thing for translation. + +It should be noted that there are some operations that do not care about the selection. For example all of the operations that change the image size lose the selection. Also some add-ons might not respect the selection. + + |
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+Selector-tool+The selector-tool allows the selection of some area from the image. This tool has many different modes that affect how the tool is used. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for the selector-tool. +
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+Settings+Most of the settings, like settings for tools, window positions, colors, etc. are saved automatically whenever the program is quit. There are also some settings that can be set through a settings window. These settings are also saved when the program is exited. The settings window allows for changing general options that affect how the program looks and behaves. + +The settings window+The settings window has three tabs that each control different types of settings. The first tab is labelled 'Windows' and is picture in figure 1. +
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+The checkboxes allow for changing between different window-modes. If a checkox is checked then the corresponding window will float above other windows of the app. Otherwise that window will behave just like a regular window. + +The second tab is for controlling the depth of undo mechanism and is labelled 'Undo'. The depth means how many operations can be backtracked in the best situation. This means that information for those operations is kept in memory. If it seems that there is too little memory for the program to operate with some image, it is advisable to lower the depth of the undo. Setting undo off frees quite a lot of memory, so it can be used in the emergency case when operating on some very big images. The 'Undo' tab is displayed in figure 2. + +
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+The third tab is labelled 'Miscellanous' and it is used to control some other options. It is displayed in figure 3. +
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+The cursor part controls how the mouse cursor appears when drawing on the image. If the 'Cross Hair Cursor' is selected, the cursor will look like a cross hair. If the 'Tool Cursor' is selected, the cursor will change depending on what painting-tool is in use. The checkbox 'Confirm Quitting' enables the boxes that ask you if you want to save the project when closing a window and the project has been changed since the last save. + |
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+Keyboard Shortcuts+This page describes the keyboard shortcuts that can be used in ArtPaint. Currently all of these shortcuts apply to the paint-window. The shortcuts are grouped here by function. The menukey is either alt or control, which way you have set it in the menu preferences. ++ File handling shortcuts+
Clipboard shortcuts+
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+Straight Line -tool+The straight line -tool allows the drawing of straight lines. The tool is used by pressing the mouse-button down on the starting point of the line and releasing it at the wanted endpoint. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for straight line -tool. +
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+Text-tool+Text-tool is used to insert text into the image. The text-tool is used by clicking on the image at the location where the inserted text is wanted. This brings up a window for adjusting the appearance of the text. This window is documented at the end of this page. +Settings+Text-tool has no settings. +Text Tool Window+The text tool window is shown in figure 1. It contains a text-area at the top where the text can be written. Below that is a pop-up-menu for selecting the font type. Then there are sliders for adjusting the size, rotation and shear of the text. Finally at the bottom is a checkbox for enabling or disabling anti-aliasing for the text. + +
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+The color of the text can be set with the color-window. Whenever the text tool window is open, all color adjusting done in the color-window will be reflected in the text-color. If only part of the text needs to be colored, it can be selected in the text-area. + +The text can be moved around by clicking on the image and moving the mouse around. The rotation can also be adjusted by clicking on the image with the secondary mouse-button and moving the mouse. + |
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+Transparency-tool+The transparency-tool is used to adjust the transparency of a layer. This changes the transparency of a circular area. The new transparency will be the same as what is foreground-color's transparency. The tool is used by clicking on the image on the part where the transparency is needed to change. The tool then gradually changes the transparency for each pixel to the target transparency. +Settings+Figure 1 shows the contents of the tool-setup-window when it is displaying the setup for the transparency-tool. +
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+What is in this tutorial?+ |
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+ | ++This tutorial contains a step by step -guide to creating a simple image with ArtPaint. This tutorial will familiarize you with the basic principles of using ArtPaint. After going through this tutorial you should be able to create images with ArtPaint and save them to the disk. + | +|
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+Step 1: Starting the program+ |
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++You can start the program by double-clicking on its icon. After you have done this you are presented with a set of windows. The windows will be arranged in somewhat similar manner as in the picture on the left. If you see that some of the windows are missing from your screen there is no need to worry. You will only be needing one of the window's at this stage. The window that you will need right now is labeled "Untitled - 1" and it has a grey background with lighter grey stripes in it. After you have located this window you can proceed on to step 2. + | +|
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+Step 2: Creating a canvas+ |
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++The window labeled "Untitled - 1" is the window that you will be doing the painting in. But first you should define what size of an image you want to create. You can find in the lower right corner of the window a box with two numeric fields in them. To these fields you can enter the size of the image that you want to create. The numbers mean how many pixels is the image's height and width. For the purpose of this tutorial put the width to about 300 and height to about 150. After you have done this push the button labeled "Create Canvas" just below the two fields. This then creates an area where you can start painting. + | +|
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+Step 3: Selecting colors+ |
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++Before you actually start painting you should probably select a suitable color. You can select a new color from the palette window. That window can be opened from the menu in your paint window. Just select the submenu "Window" and from that the entry "Show Palette Window". The palette-window contains some sliders on the right side and a grid with different colors in it on the left side. If you see a color in the grid that you like you can select it by clicking on it. If you do not see a suitable color in the grid you can adjust the colors with the sliders on the right. After you have chosen a suitable color go back to the paint window. + | +|
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+Step 4: Selecting tools+ |
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++Now that you have a color selected you should still select a tool that you'd like to use. The tools can be selected from tool window. This window can be opened from the same place in the menu that you used to open the palette window, just select "Show Tool Window" instead of "Show Palette Window". From the tool-window you can select a tool to be used by clicking on its icon. For the purpose of this tutorial click on the tool which has two rectangles in its icon. That tool can be used to draw rectangles on the image. + | +|
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+Step 5: Setting up the tools+ |
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++With the tool selected you could just draw into the image, but before that it might be a good idea to set up the tool a little. You can change the settings for the tool by opening a tool settings window. This can be done by selecting from the menu "Window" and then "Show Tool Setup Window". After you have set the settings to your liking you can paint with that tool by clicking with the mouse on the image. + | + + +|
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+Step 6: Saving the image+ |
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++After you have created the image that you like, you can save it by selecting from the menu "File" the item "Save Image As...". This brings up a standard BeOS save dialog where you can choose the appropriate directory and enter a file name. In addition to that the save panel contains a pop-up-menu for selecting the proper save-format and a button labeled "Settings..." that brings up a window where you can change settings that affect how the image is saved. Select the appropriate file-format (for example JPEG), type in a suitable name and press "Save". That stores your image on the disk for later use and concludes this tutorial. Now you should know the basics of using ArtPaint and you can go on and explore its functionality. + | + +|
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+Welcome to ArtPaint+ |
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++ArtPaint is a painting and image-processing tool for the BeOS. It offers a lot of functionality for both generating new images and manipulating existing ones. As an example of what ArtPaint can do all images in this document were created or manipulated with it. + | +
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++The main features of ArtPaint include a comprehensive set of painting-tools and real-time preview for many image-manipulating operations. The key design principle has been to let the user see what he is doing instead of just forcing him to type in some numbers and then hoping that the result will not be too far from the expected. + | +
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++ArtPaint's functionality is not well served by describing it with words. For that reason I suggest that you now put this documentation away and start playing with the program. After you have made yourself comfortable with the program you may find that you'd like to know a little more about it. In that case the other chapters in this document might help you. + | +
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+I truly hope that you'll enjoy using this program and find it useful. +Yours, + |
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