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Add method to draw a scrolling indicator

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This commit is contained in:
Patrick Horlebein
2020-04-03 16:58:53 +02:00
parent d45b1d7e27
commit 74d144eef8
2 changed files with 20 additions and 0 deletions
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1
workspace/TS100/Core/Inc/OLED.hpp
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@@ -99,6 +99,7 @@ public:
static void drawFilledRect(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1,
bool clear);
static void drawHeatSymbol(uint8_t state);
static void drawScrollIndicator(uint8_t p, uint8_t h); // Draws a scrolling position indicator
private:
static void drawChar(char c); // Draw a character to a specific location
static const uint8_t* currentFont;// Pointer to the current font used for rendering to the buffer

19
workspace/TS100/Core/Src/OLED.cpp
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@@ -106,6 +106,25 @@ void OLED::drawChar(char c) {
cursor_x += fontWidth;
}
/*
* Draws a one pixel wide scrolling indicator. y is the upper vertical position
* of the indicator in pixels (0..<16).
*/
void OLED::drawScrollIndicator(uint8_t y, uint8_t height) {
union u_type {
uint16_t whole;
uint8_t strips[2];
} column;
column.whole = (1 << height) - 1;
column.whole <<= y;
// Draw a one pixel wide bar to the left with a single pixel as
// the scroll indicator.
fillArea(OLED_WIDTH - 1, 0, 1, 8, column.strips[0]);
fillArea(OLED_WIDTH - 1, 8, 1, 8, column.strips[1]);
}
void OLED::setRotation(bool leftHanded) {
#ifdef MODEL_TS80
leftHanded = !leftHanded;