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For example, say that you have two drawing modes: point drawing and line drawing.

The pen down in point drawing mode would create a point at that location. A pen down

in line drawing mode would either mark the end of a line or the beginning of a line. You

can isolate these two pen down events by creating two SCMode classes and using them

with an SCWindowWithMode. Before you begin a line draw, switch the window to the

line drawing mode. Then all events will be handled appropriately. If you change to point

drawing, switch modes to point drawing. To change modes simply pass your SCMode

class to your SCWindowWithMode with this function:

void SetMode (SCMode *mode);

MathWindow

Class Name Derived From Styles Signals

MathWindow SCWindowWithMode/

CPUndoThing

FF_NONE

FF_THIN

FF_THICK

PSF_SIZED

PSF_FOCUS_RECEIVED

PSF_FOCUS_LOST

PSF_KEY_RECEIVED

MathWindow is a simple window that allows the editing or displaying of 2D math. This

window can be placed anywhere inside a PEG window class, but is normally put inside

an AbstractMathWindow object. MathWindow does not support scrolling. Instead, the

AbstractMathWindow class provides a frame in which the MathWindow can be

posititioned inside.

The following is an example that creates a MathWindow and places some 2D math

inside:

PegRect rr = {0,1,100,100};

MathWindow *m_math = new MathWindow(rr,1 ,0 ,false ,10 , 10);

m_math->SetMathObject(CPString_to_LinearMathObject("((1/2)^2)"));

AddR(m_math);

Casio ClassPad 300 Programming Guide

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