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Merge pull request #409 from paulscottrobson/mouse_support
USB mouse support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| // *************************************************************************************** | ||
| // *************************************************************************************** | ||
| // | ||
| // Name : mouse.cpp | ||
| // Authors : Paul Robson ([email protected]) | ||
| // Sascha Schneider ([email protected]) | ||
| // Date : 3rd April 2024 | ||
| // Reviewed : No | ||
| // Purpose : Mouse code. | ||
| // | ||
| // *************************************************************************************** | ||
| // *************************************************************************************** | ||
|
|
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| #include "common.h" | ||
| #include "data/cursors.h" | ||
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| static uint16_t xCursor, yCursor; // Current position | ||
| static bool isCursorVisible; // True if visible | ||
| static uint8_t buttonState; | ||
| static uint8_t scrollWheelState; | ||
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| // *************************************************************************************** | ||
| // | ||
| // Initialise mouse | ||
| // | ||
| // *************************************************************************************** | ||
|
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| void MSEInitialise(void) { | ||
| xCursor = yCursor = 0; | ||
| buttonState = 0; | ||
| scrollWheelState = 0; | ||
| isCursorVisible = false; | ||
| } | ||
|
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| // *************************************************************************************** | ||
| // | ||
| // Set cursor position | ||
| // | ||
| // *************************************************************************************** | ||
|
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| void MSESetPosition(uint16_t x, uint16_t y) { | ||
| xCursor = x; | ||
| yCursor = y; | ||
| } | ||
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| void MSEOffsetPosition(int8_t dx, int8_t dy) { | ||
| if(dx < 0 && xCursor < abs(dx)) { | ||
| xCursor = 0; | ||
| } else { | ||
| xCursor += dx; | ||
| } | ||
| if(dy < 0 && yCursor < abs(dy)) { | ||
| yCursor = 0; | ||
| } else { | ||
| yCursor += dy; | ||
| } | ||
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| if(xCursor > gMode.xGSize) xCursor = gMode.xGSize; | ||
| if(yCursor > gMode.yGSize) yCursor = gMode.yGSize; | ||
| } | ||
|
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| // *************************************************************************************** | ||
| // | ||
| // Update cursor visibility | ||
| // | ||
| // *************************************************************************************** | ||
|
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| void MSESetVisible(bool isVisible) { | ||
| isCursorVisible = isVisible; | ||
| } | ||
|
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| // *************************************************************************************** | ||
| // | ||
| // Get cursor draw information | ||
| // | ||
| // *************************************************************************************** | ||
|
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| bool MSEGetCursorDrawInformation(const uint8_t **pData, uint16_t *pX, uint16_t *pY) { | ||
| *pData = default_cursor_data; // Just one cursor | ||
| *pX = xCursor; *pY = yCursor; // This is top left - so crosshairs will need adjusting for example. | ||
| return isCursorVisible && xCursor < gMode.xGSize && yCursor < gMode.yGSize; // On and on screen. | ||
| } | ||
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| // *************************************************************************************** | ||
| // | ||
| // Update mouse scroll wheel state | ||
| // | ||
| // *************************************************************************************** | ||
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| void MSEUpdateScrollWheel(int8_t ds) { | ||
| scrollWheelState += ds; | ||
| } | ||
|
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| // *************************************************************************************** | ||
| // | ||
| // Update mouse button state | ||
| // | ||
| // *************************************************************************************** | ||
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| void MSEUpdateButtonState(uint8_t bs) { | ||
| buttonState = bs; | ||
| } | ||
|
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| // *************************************************************************************** | ||
| // | ||
| // Get mouse position, button state and scroll wheel state | ||
| // | ||
| // *************************************************************************************** | ||
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| void MSEGetState(uint16_t *pX, uint16_t *pY, uint8_t *pButtonState, uint8_t *pScrollWheelState) { | ||
| *pX = xCursor; | ||
| *pY = yCursor; | ||
| *pButtonState = buttonState; | ||
| *pScrollWheelState = scrollWheelState; | ||
| } | ||
|
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| // *************************************************************************************** | ||
| // | ||
| // Date Revision | ||
| // ==== ======== | ||
| // | ||
| // *************************************************************************************** |
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