// dvx_draw.h — Layer 2: Drawing primitives for DV/X GUI
#ifndef DVX_DRAW_H
#define DVX_DRAW_H

#include "dvxTypes.h"

// Initialize blit operations based on pixel format
void drawInit(BlitOpsT *ops, const DisplayT *d);

// Solid color rectangle fill (clips to display clip rect)
void rectFill(DisplayT *d, const BlitOpsT *ops, int32_t x, int32_t y, int32_t w, int32_t h, uint32_t color);

// Copy rectangle from source buffer to backbuffer (clips to display clip rect)
void rectCopy(DisplayT *d, const BlitOpsT *ops, int32_t dstX, int32_t dstY, const uint8_t *srcBuf, int32_t srcPitch, int32_t srcX, int32_t srcY, int32_t w, int32_t h);

// Draw a beveled frame
void drawBevel(DisplayT *d, const BlitOpsT *ops, int32_t x, int32_t y, int32_t w, int32_t h, const BevelStyleT *style);

// Draw a single character, returns advance width
int32_t drawChar(DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, int32_t x, int32_t y, char ch, uint32_t fg, uint32_t bg, bool opaque);

// Draw a null-terminated string
void drawText(DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, int32_t x, int32_t y, const char *text, uint32_t fg, uint32_t bg, bool opaque);

// Measure text width in pixels
int32_t textWidth(const BitmapFontT *font, const char *text);

// Parse accelerator key from text with & markers (e.g. "E&xit" -> 'x')
// Returns the lowercase accelerator character, or 0 if none found.
char accelParse(const char *text);

// Draw text with & accelerator processing (underlines the accelerator character)
void drawTextAccel(DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, int32_t x, int32_t y, const char *text, uint32_t fg, uint32_t bg, bool opaque);

// Measure text width in pixels, skipping & markers
int32_t textWidthAccel(const BitmapFontT *font, const char *text);

// Draw a 1-bit bitmap with mask (for cursors, icons)
// andMask/xorData are arrays of uint16_t, one per row
void drawMaskedBitmap(DisplayT *d, const BlitOpsT *ops, int32_t x, int32_t y, int32_t w, int32_t h, const uint16_t *andMask, const uint16_t *xorData, uint32_t fgColor, uint32_t bgColor);

// Draw a row of terminal character cells (ch/attr pairs with a 16-color palette).
// Renders 'cols' cells starting at (x,y). Much faster than calling drawChar per cell.
// cursorCol: column index to draw inverted (cursor), or -1 for no cursor.
void drawTermRow(DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, int32_t x, int32_t y, int32_t cols, const uint8_t *lineData, const uint32_t *palette, bool blinkVisible, int32_t cursorCol);

// Dotted focus rectangle (every other pixel)
void drawFocusRect(DisplayT *d, const BlitOpsT *ops, int32_t x, int32_t y, int32_t w, int32_t h, uint32_t color);

// Horizontal line
void drawHLine(DisplayT *d, const BlitOpsT *ops, int32_t x, int32_t y, int32_t w, uint32_t color);

// Vertical line
void drawVLine(DisplayT *d, const BlitOpsT *ops, int32_t x, int32_t y, int32_t h, uint32_t color);

#endif // DVX_DRAW_H