Appendix C. Draw Tools

Draw tools are for inserting labels, explanations, descriptions, and drawings to graph views and pages. They are accessible for pages from the page buddy window. They are accessible for graph views from the view buddy window, by first clicking on the buddy mode pop-up (at the top of the floating window) menu, then selecting Draw from the menu.

Draw tool types include:

- a selection tool, for selecting objects;
- an arrow tool, for drawing arrows and lines;
- a box tool, for drawing rectangular boxes;
- a text tool, for writing text annotations; and
- a formula tool, for writing mathematics formula annotations.

The active draw tool is selected by clicking, or pressing down its button in the draw buddy window or the page buddy window. The respective draw tool options and controls would then be presented in a separate Draw Tools floating window.

If an object is created or selected, the tool’s controls will modify this current object only. If no object is selected, a tool’s controls will modify the default settings for that tool, which affect all objects subsequently created.

The Selection Tool
The selection tool is for selecting an object which can then be moved, edited, or deleted. It is the black cursor button in the draw buddy or the page buddy.
Following are some use instructions for the selection tool:

- At most one object can be selected at a time.
- To select a new object, first ensure that the selection button in the draw buddy or page buddy is pressed down, then click on the new object to select it. Selection is possible when the cursor appears as a hand with a pointing finger.
- When an object is selected, a Draw Tools floating window which is associated with the type of the selected object would appear automatically. The selected object can then be edited using the relevant tools provided in that Draw Tools floating window.
  For details about a draw tool’s controls, refer to the manual sections for that tool.
- If no object is selected, no Draw Tools floating window will be displayed.
- With selection as the current tool, a selected object can be deselected by:
  - selecting another object,
  - pressing the enter key, or
  - clicking on an area where there are no objects to select.

The object selected with the selection tool can be moved, edited, or deleted. To effectively manipulate objects, note the following attributes:

- An object is automatically selected when it is created.
- Any object can be selected with the selection tool by clicking on the object.
- Control points are found in all selected objects. They characterize the selected object, and denote its limits.
  - For formulae, text, and boxes, control points denote an object’s four corner points and four edge midpoints.
  - For arrows, control points denote the arrow’s starting (source) and ending (destination) points.
  - Unselected objects do not display any control points.
- Control points are also used for resizing and/or re-orienting objects.
  - For formulae, text, and boxes, a corner point controls its two adjacent edges, while an edge midpoint controls just the one immediate edge.
  - For arrows, control points are for changing the endpoints of the arrow, thus changing the arrow’s length or orientation.
  - To use a control point: first place the cursor directly above the control point (the cursor will change into a small triangle pointer), then drag the control point to its new position.
- The selected object can be entirely exposed, on the topmost layer; it can also be partially covered, in a layer underneath other objects.
  - To quickly bring a selected object up to the topmost layer, press the up arrow key once; to quickly bring a selected object down to the bottom layer, press the down arrow key once.
  - To fit an object into a specific layer in between the topmost and the bottom layer, manually move away objects at layers higher than the desired layer, then put the special object on top, then replace any moved objects back.
- To move an object, ensure that it is selected first, place the cursor over the object but away from any control points, then drag the object to its new location. Dragging is possible when the cursor appears as an open (grabbing) hand.
- To delete an object, ensure that it is selected first, then press the del key or the Backspace key once.

Arrow Tools
The arrow tool is for drawing lines, single-headed arrows, and/or double-headed arrows in graph views or pages. It is the arrow button in the draw buddy and the page buddy.
To insert an arrow, first ensure that the arrow button in the draw buddy or page buddy is pressed down. Bring the mouse to the desired starting point (the source) of the arrow, press and hold down the mouse button dragging the mouse to the desired ending point (the destination) of the arrow. Release the mouse button once the final position is correct.

To resize, re-orient, move, or delete an arrow, refer to the selection tool manual section presented earlier. To customize the appearance of lines and arrows, use arrow tools as presented in figure C.1 and explained following:

Figure C.1: Arrow tools floating window

- Source radio buttons on the leftmost column; destination radio buttons, the rightmost.
  Click one of the source radio buttons to select the source point appearance; click one of the destination radio buttons to select the destination point appearance.
- Arrowhead Size pop-up menu
  Click on this pop-up menu to open the arrowhead size menu and select a desired size. Different sizes have the same proportion between width and length. The selected size applies to both source and destination ends.
- Arrowhead Width pop-up menu
  Click on this pop-up menu to access the width pop-up menu, to select a desired width. Different width have the same length. The selected width applies to both source and destination ends.
- Line Thickness pop-up menu
  Click on this pop-up menu to access the thickness pop-up list, to select a desired thickness. The selected thickness applies to the source, the line, as well as the destination.

Formula Tool
The Formula tool is for writing formatted mathematical formulae in graph views or pages. It is the “x2” button in the draw buddy and the page buddy.
To insert a formula, first ensure that the formula button in the draw buddy or page buddy is pressed down. Click the mouse once at the center of where the formula is desired, an easy button floating window will appear to provide help in formula entry, and the formula can be entered. To resize, move, or delete a formula, refer to the selection tool manual section presented earlier. To customize the appearance of formulae, use formula tools as presented in figure C.2 and explained following:

Figure C.2: Formula Tools Floating Window

- Font Size pop-up menu and finetune arrows
  Click on the pop-up menu to open the font size list and select a desired size. Each click on the finetune up arrow increases the font size by 1; each click on the finetune down arrow reduces it by 1.
- Transparent background checkbox
  Select this option to use a transparent background for the formula box. De-select it to use an opaque white background.
- Use bitmap checkbox
  Select this option to use bitmap font.
- Resolution pop-up menu
  Click on this pop-up menu to open the resolution menu and select a desired resolution.

Hint: | The size of the formula box is determined by the length of the formula and the font size selected.

Text Tool
The text tool is for writing text in graph views or pages. It is the “A” button in the draw buddy and the page buddy.
To insert a text object, first ensure that the text button in the draw buddy or page buddy is pressed down. Click the mouse once at the center of where the text is desired, A text editing window, as seen in figure C.3, will appear automatically for entering text contents:

Figure C.3: A Text Editing Window

- The text region is for entering and displaying the text.
- The Cancel button is for aborting text writing, closing the text editing window.
- The Ok button for is completing text editing, closing the text editing window, and inserting the text to the graph view or page.

To resize, move, or delete a text object, refer to the selection tool manual section presented earlier. To customize the appearance of text objects, use text tools as presented in figure C.4 and explained following:

Figure C.4: Text Tools Floating Window

- Font type pop-up menu
  Click on this pop-up menu to open the font type list and select a desired font.
- Font Size pop-up menu and finetune arrows
  Click on this pop-up menu to open the font size menu and select a desired size. Each click on the finetune up arrow increases the font size by 1; each click on the finetune down arrow reduces it by 1.
- Text format checkboxes for Bold, Italic, and Outline fonts
  For each of the three text format settings, click to toggle between the selected and unselected states.
- Text alignment radio buttons for Left, Center, and Right alignment
  Select one of the three options by clicking its radio button.
- Edit Text button
  Click on this edit button to return to the text editing window, to change the text contents. This button is greyed out (inactive) when the text tool is first accessed and a text object has not yet been inserted.
- Transparent background checkbox
  Select this option to use a transparent background for the text box. De-select it to use an opaque white background.

Hint: | The size of the text box is determined by the length of the text and the font size selected.

Box Tools
The box tool is for drawing rectangle boxes in graph views or pages. It is the rectangle box button in the draw buddy and the page buddy.
To insert a box object, first ensure that the box button in the draw buddy or page buddy is pressed down. Bring the mouse to one corner of the desired box, press and hold down the mouse button while dragging the mouse to the opposite corner of the box. Release the mouse button once the final position is correct.

To resize, move, or delete a box object, refer to the selection tool manual section presented earlier. To customize the appearance of boxes, use box tools as presented in figure C.5 and explained following:

Figure C.5: Box Tools Floating Window

- Box background radio buttons for Transparent, Colour, and Pattern background
  Select one of the three options by clicking its radio button.
  - If the colour option is selected, the background colour is to be selected with the colour pop-up menu adjacent to the Colour radio button.
  - If the pattern option is selected, the background pattern is to be selected with the pattern pop-up menu adjacent to the Pattern radio button.
- Line Thickness pop-up menu
  Click on this pop-up menu to open the line thickness menu and select a desired thinkness for the border of the box.

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