SourceOperationFunction wordt nu goed getekend
Added the Integral

Signed-off-by: bvanr <henkibrij@hotmail.com>
MathOperationIntegral and MathSourceOperationIntegral now use the Dejavu Sans font
* Also slightly improved the drawing code of MathSourceOperationIntegral

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Completed the helpers for MathOperationIntegral
+ MathOperationIntegral can now be saved/loaded to/from XML
+ MathOperationIntegral can now be evaluated
* Made the evaluation background white

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Merge remote-tracking branch 'glenn/work' into pull
Strongly simplified the code for drawing MathSourceOperationFunction

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Implemented toString() method for MathObjectEmpty and MathOperationIntegral

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Added a name column to the formula database

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Added tabs to the operation source drawer

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Created a dimensions file for different screen sizes.
So the keyboard is now also displayed correctly on smaller screens.

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Fixed a bug where MathOperationFunction wouldn't be saved properly to XML

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Improved tablet layout

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Created a keyboard layout for landscape mode and enhanced the layout of the keyboard for tablets
* Fixes #40

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>