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JUCE/modules/juce_blocks_basics/LittleFootFunctions.txt

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/** Returns the smaller of two integer values. */
int min (int a, int b);
/** Returns the smaller of two floating point values. */
float min (float a, float b);
/** Returns the larger of two integer values. */
int max (int a, int b);
/** Returns the larger of two floating point values. */
float max (float a, float b);
/** Constrains an integer value to keep it within a given range.
@param lowerLimit the minimum value to return
@param upperLimit the maximum value to return
@param valueToConstrain the value to try to return
@returns the closest value to valueToConstrain which lies between lowerLimit
and upperLimit (inclusive)
*/
int clamp (int lowerLimit, int upperLimit, int valueToConstrain);
/** Constrains a floating point value to keep it within a given range.
@param lowerLimit the minimum value to return
@param upperLimit the maximum value to return
@param valueToConstrain the value to try to return
@returns the closest value to valueToConstrain which lies between lowerLimit
and upperLimit (inclusive)
*/
float clamp (float lowerLimit, float upperLimit, float valueToConstrain);
/** Returns the absolute value of an integer value. */
int abs (int arg);
/** Returns the absolute value of a floating point value. */
float abs (float arg);
/** Remaps a value from a source range to a target range.
@param value the value within the source range to map
@param sourceMin the minimum value of the source range
@param sourceMax the maximum value of the source range
@param destMin the minumum value of the destination range
@param destMax the maximum value of the destination range
@returns the original value mapped to the destination range
*/
float map (float value, float sourceMin, float sourceMax, float destMin, float destMax);
/** Remaps a value from a source range to the range 0 - 1.0.
@param value the value within the source range to map
@param sourceMin the minimum value of the source range
@param sourceMax the maximum value of the source range
@returns the original value mapped to the range 0 - 1.0
*/
float map (float value, float sourceMin, float sourceMax);
/** Performs a modulo operation (can cope with the dividend being negative).
The divisor must be greater than zero.
*/
int mod (int dividend, int divisor);
/** Returns a random floating-point number.
@returns a random value in the range 0 (inclusive) to 1.0 (exclusive)
*/
float getRandomFloat();
/** Returns a random integer, limited to a given range.
@returns a random integer between 0 (inclusive) and maxValue (exclusive).
*/
int getRandomInt (int maxValue)
/** Returns the number of milliseconds since a fixed event (usually system startup).
This returns a monotonically increasing value which it unaffected by changes to the
system clock. It should be accurate to within a few millisecseconds.
*/
int getMillisecondCounter();
/** Returns the current firmware version. */
int getFirmwareVersion();
/** Logs an integer value to the console. */
void log (int data);
/** Logs a hexadecimal value to the console. */
void logHex (int data);
/** Returns the length of time spent in the function call in milliseconds. */
int getTimeInCurrentFunctionCall();
/** Returns the battery level between 0 and 1.0. */
float getBatteryLevel();
/** Returns true if the battery is charging. */
bool isBatteryCharging();
/** Returns true if this block is directly connected to the application,
as opposed to only being connected to a different block via a connection port.
*/
bool isMasterBlock();
/** Returns true if this block is directly connected to the host computer. */
bool isConnectedToHost();
/** Sets whether status overlays should be displayed. */
void setStatusOverlayActive (bool active);
/** Returns the number of blocks in the current topology. */
int getNumBlocksInTopology();
/** Returns the ID of the block at a given index in the topology. */
int getBlockIDForIndex (int index);
/** Returns the ID of the block connected to a specified port. */
int getBlockIDOnPort (int port);
/** Returns the port number that is connected to the master block. Returns 0xFF if there is no path. */
int getPortToMaster();
/** Returns the block type of the block with this ID. */
int getBlockTypeForID (int blockID);
/** Sends a message to the block with the specified ID.
This will be processed in the handleMessage() callback.
@param blockID the ID of the block to send this message to
@param param1 the first chunk of data to send
@param param2 the second chunk of data to send
@param param3 the third chunk of data to send
*/
void sendMessageToBlock (int blockID, int param1, int param2, int param3);
/** Sends a message to the host.
To receive this the host will need to implement the Block::ProgramEventListener::handleProgramEvent() method.
@param param1 the first chunk of data to send
@param param2 the second chunk of data to send
@param param3 the third chunk of data to send
*/
void sendMessageToHost (int param1, int param2, int param3);
/** Combines a set of 8-bit ARGB values into a 32-bit colour and returns the result. */
int makeARGB (int alpha, int red, int green, int blue);
/** Blends the overlaid ARGB colour onto the base one and returns the new colour. */
int blendARGB (int baseColour, int overlaidColour);
/** Sets a pixel to a specified colour with full alpha.
@param rgb the colour to use (0xff...)
@param x the x coordinate of the pixel to fill
@param y the y coordinate of the pixel to fill
*/
void fillPixel (int rgb, int x, int y);
/** Blends a the current pixel colour with a specified colour.
@param argb the colour to use
@param x the x coordinate of the pixel to blend
@param y the y coordinate of the pixel to blend
*/
void blendPixel (int argb, int x, int y);
/** Fills a rectangle on the display with a specified colour.
@param rgb the colour to use (0xff...)
@param x the x coordinate of the rectangle to draw
@param y the y coordinate of the rectangle to draw
@param width the width of the rectangle to draw
@param height the height of the rectangle to draw
*/
void fillRect (int rgb, int x, int y, int width, int height);
/** Blends a rectangle on the display with a specified colour.
@param argb the colour to use
@param x the x coordinate of the rectangle to blend
@param y the y coordinate of the rectangle to blend
@param width the width of the rectangle to blend
@param height the height of the rectangle to blend
*/
void blendRect (int argb, int x, int y, int width, int height);
/** Draws a rectangle on the block display with four corner colours blended together.
@param colourNW the colour to use in the north west corner of the rectangle
@param colourNE the colour to use in the north east corner of the rectangle
@param colourSE the colour to use in the south east corner of the rectangle
@param colourSW the colour to use in the south west corner of the rectangle
@param x the x coordinate of the rectangle
@param y the y coordinate of the rectangle
@param width the width of the rectangle
@param height the height of the rectangle
*/
void blendGradientRect (int colourNW, int colourNE, int colourSE, int colourSW, int x, int y, int width, int height);
/** Draws a pressure point at a given centre LED with a specified colour and pressure.
@param argb the colour to use
@param touchX the x position of the touch
@param touchY the y position of the touch
@param touchZ the pressure value of the touch
*/
void addPressurePoint (int argb, float touchX, float touchY, float touchZ);
/** Draws the pressure map on the block display. */
void drawPressureMap();
/** Fades the pressure map on the block display. */
void fadePressureMap();
/** Draws a number on the block display.
@param value the number to draw between 0 and 99
@param colour the colour to use
@param x the x coordinate to use
@param y the y coordinate to use
*/
void drawNumber (int value, int colour, int x, int y);
/** Clears the display setting all the LEDs to black. */
void clearDisplay();
/** Clears the display setting all the LEDs to a specified colour. */
void clearDisplay (int rgb);
/** Sends a 1-byte short midi message. */
void sendMIDI (int byte0);
/** Sends a 2-byte short midi message. */
void sendMIDI (int byte0, int byte1);
/** Sends a 3-byte short midi message. */
void sendMIDI (int byte0, int byte1, int byte2);
/** Sends a key-down message.
@param channel the midi channel, in the range 0 to 15
@param noteNumber the key number, in the range 0 to 127
@param velocity the velocity, in the range 0 to 127
*/
void sendNoteOn (int channel, int noteNumber, int velocity);
/** Sends a key-up message.
@param channel the midi channel, in the range 0 to 15
@param noteNumber the key number, in the range 0 to 127
@param velocity the velocity, in the range 0 to 127
*/
void sendNoteOff (int channel, int noteNumber, int velocity);
/** Sends an aftertouch message.
@param channel the midi channel, in the range 0 to 15
@param noteNumber the key number, in the range 0 to 127
@param level the amount of aftertouch, in the range 0 to 127
*/
void sendAftertouch (int channel, int noteNumber, int level);
/** Sends a controller message.
@param channel the midi channel, in the range 0 to 15
@param controller the type of controller
@param value the controller value
*/
void sendCC (int channel, int controller, int value);
/** Sends a pitch bend message.
@param channel the midi channel, in the range 0 to 15
@param position the wheel position, in the range 0 to 16383
*/
void sendPitchBend (int channel, int position);
/** Sends a channel-pressure change event.
@param channel the midi channel, in the range 0 to 15
@param pressure the pressure, in the range 0 to 127
*/
void sendChannelPressure (int channel, int pressure);
//==============================================================================
/**
Use this method to draw the display.
The Block will call this approximately 25 times per second.
*/
void repaint()
/** Called when a button is pushed.
@param index the index of the button that was pushed
*/
void handleButtonDown (int index);
/** Called when a button is released.
@param index the index of the button that was released
*/
void handleButtonUp (int index);
/** Called when a touch event starts.
@param index the touch index, which will stay constant for each finger as it is tracked
@param x the X position of this touch on the device, in logical units starting from 0 (left)
@param y the Y position of this touch on the device, in logical units starting from 0 (top)
@param z the current pressure of this touch, in the range 0.0 (no pressure) to 1.0 (very hard)
@param vz the rate at which pressure is currently changing, measured in units/second
*/
void touchStart (int index, float x, float y, float z, float vz);
/** Called when a touch event moves.
@param index the touch index, which will stay constant for each finger as it is tracked
@param x the X position of this touch on the device, in logical units starting from 0 (left)
@param y the Y position of this touch on the device, in logical units starting from 0 (top)
@param z the current pressure of this touch, in the range 0.0 (no pressure) to 1.0 (very hard)
@param vz the rate at which pressure is currently changing, measured in units/second
*/
void touchMove (int index, float x, float y, float z, float vz);
/** Called when a touch event ends.
@param index the touch index, which will stay constant for each finger as it is tracked
@param x the X position of this touch on the device, in logical units starting from 0 (left)
@param y the Y position of this touch on the device, in logical units starting from 0 (top)
@param z the current pressure of this touch, in the range 0.0 (no pressure) to 1.0 (very hard)
@param vz the rate at which pressure is currently changing, measured in units/second
*/
void touchEnd (int index, float x, float y, float z, float vz);
/** Called when a program is loaded onto the block and is about to start. Do any setup here. */
void initialise();
/** Called when a block receives a MIDI message. */
void handleMIDI (int byte0, int byte1, int byte2);
/** Called when a block receives a message.
@see sendMessageToBlock
*/
void handleMessage (int param1, int param2, int param3);