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Move to SDK EInkDisplay and enable anti-aliased 2-bit text (#5)

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* First pass at moving to SDK EInkDisplay library

* Add 2-bit grayscale text and anti-aliased rendering of text

* Render status bar for empty chapters

* Refresh screen every 15 pages to avoid ghosting

* Simplify boot and sleep screens

* Give FileSelectionScreen task more stack memory

* Move text around slightly on Boot and Sleep screens

* Re-use existing buffer and write to whole screen for 'partial update'
This commit is contained in:
Dave Allie
2025-12-08 19:48:49 +11:00
committed by GitHub
parent de453fed1d
commit 2ed8017aa2
31 changed files with 11300 additions and 9243 deletions
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52
lib/EpdRenderer/EpdRenderer.h
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@@ -1,52 +1,58 @@
#pragma once
#include <GxEPD2_BW.h>
#include <EInkDisplay.h>
#include <EpdFontRenderer.hpp>
#define XteinkDisplay GxEPD2_BW<GxEPD2_426_GDEQ0426T82, GxEPD2_426_GDEQ0426T82::HEIGHT>
class EpdRenderer {
XteinkDisplay& display;
EpdFontRenderer<XteinkDisplay>* regularFontRenderer;
EpdFontRenderer<XteinkDisplay>* smallFontRenderer;
EpdFontRenderer<XteinkDisplay>* uiFontRenderer;
EInkDisplay& einkDisplay;
EpdFontRenderer<EInkDisplay>* regularFontRenderer;
EpdFontRenderer<EInkDisplay>* smallFontRenderer;
EpdFontRenderer<EInkDisplay>* uiFontRenderer;
int marginTop;
int marginBottom;
int marginLeft;
int marginRight;
EpdFontRendererMode fontRendererMode;
float lineCompression;
public:
explicit EpdRenderer(XteinkDisplay& display);
explicit EpdRenderer(EInkDisplay& einkDisplay);
~EpdRenderer();
void drawPixel(int x, int y, bool state = true) const;
int getTextWidth(const char* text, EpdFontStyle style = REGULAR) const;
int getUiTextWidth(const char* text, EpdFontStyle style = REGULAR) const;
int getSmallTextWidth(const char* text, EpdFontStyle style = REGULAR) const;
void drawText(int x, int y, const char* text, uint16_t color = 1, EpdFontStyle style = REGULAR) const;
void drawUiText(int x, int y, const char* text, uint16_t color = 1, EpdFontStyle style = REGULAR) const;
void drawSmallText(int x, int y, const char* text, uint16_t color = 1, EpdFontStyle style = REGULAR) const;
void drawText(int x, int y, const char* text, bool state = true, EpdFontStyle style = REGULAR) const;
void drawUiText(int x, int y, const char* text, bool state = true, EpdFontStyle style = REGULAR) const;
void drawSmallText(int x, int y, const char* text, bool state = true, EpdFontStyle style = REGULAR) const;
void drawTextBox(int x, int y, const std::string& text, int width, int height, EpdFontStyle style = REGULAR) const;
void drawLine(int x1, int y1, int x2, int y2, uint16_t color = 1) const;
void drawRect(int x, int y, int width, int height, uint16_t color = 1) const;
void fillRect(int x, int y, int width, int height, uint16_t color = 1) const;
void drawCircle(int x, int y, int radius, uint16_t color = 1) const;
void fillCircle(int x, int y, int radius, uint16_t color = 1) const;
void drawImage(const uint8_t bitmap[], int x, int y, int width, int height, bool invert = false,
bool mirrorY = false) const;
void drawImageNoMargin(const uint8_t bitmap[], int x, int y, int width, int height, bool invert = false,
bool mirrorY = false) const;
void clearScreen(bool black = false) const;
void flushDisplay(bool partialUpdate = true) const;
void flushArea(int x, int y, int width, int height) const;
void drawLine(int x1, int y1, int x2, int y2, bool state = true) const;
void drawRect(int x, int y, int width, int height, bool state = true) const;
void fillRect(int x, int y, int width, int height, bool state = true) const;
void drawImage(const uint8_t bitmap[], int x, int y, int width, int height) const;
void drawImageNoMargin(const uint8_t bitmap[], int x, int y, int width, int height) const;
void swapBuffers() const;
void copyGrayscaleLsbBuffers() const;
void copyGrayscaleMsbBuffers() const;
void displayGrayBuffer() const;
void clearScreen(uint8_t color = 0xFF) const;
void invertScreen() const;
void flushDisplay(EInkDisplay::RefreshMode refreshMode = EInkDisplay::FAST_REFRESH) const;
// void flushArea(int x, int y, int width, int height) const;
int getPageWidth() const;
int getPageHeight() const;
int getSpaceWidth() const;
int getLineHeight() const;
// set margins
void setMarginTop(const int newMarginTop) { this->marginTop = newMarginTop; }
void setMarginBottom(const int newMarginBottom) { this->marginBottom = newMarginBottom; }
void setMarginLeft(const int newMarginLeft) { this->marginLeft = newMarginLeft; }
void setMarginRight(const int newMarginRight) { this->marginRight = newMarginRight; }
void setFontRendererMode(const EpdFontRendererMode mode) { this->fontRendererMode = mode; }
};