void
TermView::FrameResized(float width, float height)
{
VTermRect newSize = _PixelsToGlyphs(BRect(0, 0, width - 2 * kBorderSpacing,
height - 2 * kBorderSpacing));
vterm_set_size(fTerm, newSize.end_row, newSize.end_col);
}
void
TermView::Draw(BRect updateRect)
{
VTermRect updatedChars = _PixelsToGlyphs(updateRect);
VTermPos pos;
font_height height;
GetFontHeight(&height);
VTermPos cursorPos;
vterm_state_get_cursorpos(vterm_obtain_state(fTerm), &cursorPos);
for (pos.row = updatedChars.start_row; pos.row <= updatedChars.end_row;
pos.row++) {
int x = updatedChars.start_col * fFontWidth + kBorderSpacing;
int y = pos.row * fFontHeight + (int)ceil(height.ascent)
+ kBorderSpacing;
MovePenTo(x, y);
BString string;
VTermScreenCell cell;
int width = 0;
bool isCursor = false;
pos.col = updatedChars.start_col;
_GetCell(pos, cell);
for (pos.col = updatedChars.start_col;
pos.col <= updatedChars.end_col;) {
VTermScreenCell newCell;
_GetCell(pos, newCell);
// We need to start a new extent if:
// - The attributes change
// - The colors change
// - The end of line is reached
// - The current cell is under the cursor
// - The current cell is right of the cursor
if (*(uint32_t*)&cell.attrs != *(uint32_t*)&newCell.attrs
|| !vterm_color_equal(cell.fg, newCell.fg)
|| !vterm_color_equal(cell.bg, newCell.bg)
|| pos.col >= updatedChars.end_col
|| (pos.col == cursorPos.col && pos.row == cursorPos.row)
|| (pos.col == cursorPos.col + 1 && pos.row == cursorPos.row)) {
rgb_color foreground, background;
foreground.red = cell.fg.red;
foreground.green = cell.fg.green;
foreground.blue = cell.fg.blue;
foreground.alpha = 255;
background.red = cell.bg.red;
background.green = cell.bg.green;
background.blue = cell.bg.blue;
background.alpha = 255;
// Draw the cursor by swapping foreground and background colors
if (isCursor) {
SetLowColor(foreground);
SetViewColor(foreground);
SetHighColor(background);
} else {
SetLowColor(background);
SetViewColor(background);
SetHighColor(foreground);
}
FillRect(BRect(x, y - ceil(height.ascent) + 1,
x + width * fFontWidth - 1,
y + ceil(height.descent) + ceil(height.leading)),
B_SOLID_LOW);
BFont font = be_fixed_font;
if (cell.attrs.bold)
font.SetFace(B_BOLD_FACE);
if (cell.attrs.underline)
font.SetFace(B_UNDERSCORE_FACE);
if (cell.attrs.italic)
font.SetFace(B_ITALIC_FACE);
if (cell.attrs.blink) // FIXME make it actually blink
font.SetFace(B_OUTLINED_FACE);
if (cell.attrs.reverse)
font.SetFace(B_NEGATIVE_FACE);
if (cell.attrs.strike)
font.SetFace(B_STRIKEOUT_FACE);
// TODO handle "font" (alternate fonts), dwl and dhl (double size)
SetFont(&font);
DrawString(string);
x += width * fFontWidth;
// Prepare for next cell
cell = newCell;
string = "";
width = 0;
}
if (pos.col == cursorPos.col && pos.row == cursorPos.row)
isCursor = true;
else
isCursor = false;
if (newCell.chars[0] == 0) {
string += " ";
pos.col ++;
width += 1;
} else {
char buffer[VTERM_MAX_CHARS_PER_CELL];
wcstombs(buffer, (wchar_t*)newCell.chars,
VTERM_MAX_CHARS_PER_CELL);
string += buffer;
width += newCell.width;
pos.col += newCell.width;
}
}
}
}
void
TermView::Draw(BRect updateRect)
{
VTermRect updatedChars = _PixelsToGlyphs(updateRect);
VTermPos pos;
font_height height;
GetFontHeight(&height);
VTermPos cursorPos;
vterm_state_get_cursorpos(vterm_obtain_state(fTerm), &cursorPos);
for (pos.row = updatedChars.start_row; pos.row <= updatedChars.end_row;
pos.row++) {
int x = updatedChars.start_col * fFontWidth + kBorderSpacing;
int y = pos.row * fFontHeight + (int)ceil(height.ascent)
+ kBorderSpacing;
MovePenTo(x, y);
for (pos.col = updatedChars.start_col;
pos.col <= updatedChars.end_col;) {
VTermScreenCell cell;
_GetCell(pos, cell);
rgb_color foreground, background;
foreground.red = cell.fg.red;
foreground.green = cell.fg.green;
foreground.blue = cell.fg.blue;
foreground.alpha = 255;
background.red = cell.bg.red;
background.green = cell.bg.green;
background.blue = cell.bg.blue;
background.alpha = 255;
if ((cell.attrs.reverse != 0) ^ (pos.col == cursorPos.col
&& pos.row == cursorPos.row)) {
SetLowColor(foreground);
SetViewColor(foreground);
SetHighColor(background);
} else {
SetLowColor(background);
SetViewColor(background);
SetHighColor(foreground);
}
FillRect(BRect(x, y - ceil(height.ascent) + 1,
x + cell.width * fFontWidth - 1,
y + ceil(height.descent) + ceil(height.leading)),
B_SOLID_LOW);
if (cell.chars[0] == 0) {
x += fFontWidth;
MovePenTo(x, y);
pos.col ++;
} else {
char buffer[VTERM_MAX_CHARS_PER_CELL];
wcstombs(buffer, (wchar_t*)cell.chars,
VTERM_MAX_CHARS_PER_CELL);
DrawString(buffer);
x += (int)ceil(StringWidth(buffer));
pos.col += cell.width;
}
}
}
}
