diff options
Diffstat (limited to 'NxWidgets/libnxwidgets/src/cgraphicsport.cxx')
| -rw-r--r-- | NxWidgets/libnxwidgets/src/cgraphicsport.cxx | 108 |
1 files changed, 83 insertions, 25 deletions
diff --git a/NxWidgets/libnxwidgets/src/cgraphicsport.cxx b/NxWidgets/libnxwidgets/src/cgraphicsport.cxx index d43f3bdfa..73f2352eb 100644 --- a/NxWidgets/libnxwidgets/src/cgraphicsport.cxx +++ b/NxWidgets/libnxwidgets/src/cgraphicsport.cxx @@ -654,6 +654,55 @@ void CGraphicsPort::drawText(struct nxgl_point_s *pos, CRect *bound, CNxFont *font, const CNxString &string, int startIndex, int length) { + drawText(pos, bound, font, string, startIndex, length, 0, true); +} + +/** + * Draw a portion of a string to the window and fill the background + * in one go. + * @param pos The window-relative x/y coordinate of the string. + * @param bound The window-relative bounds of the string. + * @param font The font to draw with. + * @param string The string to output. + * @param startIndex The start index within the string from which + * drawing will commence. + * @param length The number of characters to draw. + * @param color Foreground color + * @param background Background color + */ + +void CGraphicsPort::drawText(struct nxgl_point_s *pos, CRect *bound, + CNxFont *font, const CNxString &string, + int startIndex, int length, + nxgl_mxpixel_t color, + nxgl_mxpixel_t background) +{ + nxgl_mxpixel_t savedColor = font->getColor(); + font->setColor(color); + + drawText(pos, bound, font, string, startIndex, length, background, false); + + font->setColor(savedColor); +} + +/** + * The underlying implementation for drawText functions + * @param pos The window-relative x/y coordinate of the string. + * @param bound The window-relative bounds of the string. + * @param font The font to draw with. + * @param string The string to output. + * @param startIndex The start index within the string from which + * drawing will commence. + * @param length The number of characters to draw. + * @param background Color to use for background if transparent is false. + * @param transparent Whether to fill the background. + */ +void CGraphicsPort::drawText(struct nxgl_point_s *pos, CRect *bound, + CNxFont *font, const CNxString &string, + int startIndex, int length, + nxgl_mxpixel_t background, + bool transparent) +{ // Verify index and length int stringLength = string.getLength(); @@ -668,6 +717,16 @@ void CGraphicsPort::drawText(struct nxgl_point_s *pos, CRect *bound, endIndex = stringLength; } +#ifdef CONFIG_NX_WRITEONLY + if (transparent) + { + // Can't render transparently without reading memory. + + transparent = false; + background = m_backColor; + } +#endif + // Allocate a bit of memory to hold the largest rendered font unsigned int bmWidth = ((unsigned int)font->getMaxWidth() * CONFIG_NXWIDGETS_BPP + 7) >> 3; @@ -680,7 +739,7 @@ void CGraphicsPort::drawText(struct nxgl_point_s *pos, CRect *bound, struct nxgl_rect_s boundingBox; bound->getNxRect(&boundingBox); - + // Loop setup struct SBitmap bitmap; @@ -707,16 +766,12 @@ void CGraphicsPort::drawText(struct nxgl_point_s *pos, CRect *bound, // Does the letter have height? Spaces have width, but no height - if (metrics.height > 0) + if (metrics.height > 0 || !transparent) { - // Get the height of the font - - nxgl_coord_t fontHeight = (nxgl_coord_t)(metrics.height + metrics.yoffset); - // Set the current, effective size of the bitmap bitmap.width = fontWidth; - bitmap.height = fontHeight; + bitmap.height = bmHeight; bitmap.stride = (fontWidth * bitmap.bpp + 7) >> 3; // Describe the destination of the font as a bounding box @@ -725,7 +780,7 @@ void CGraphicsPort::drawText(struct nxgl_point_s *pos, CRect *bound, dest.pt1.x = pos->x; dest.pt1.y = pos->y; dest.pt2.x = pos->x + fontWidth - 1; - dest.pt2.y = pos->y + fontHeight - 1; + dest.pt2.y = pos->y + bmHeight - 1; // Get the interection of the font box and the bounding box @@ -737,25 +792,28 @@ void CGraphicsPort::drawText(struct nxgl_point_s *pos, CRect *bound, if (!nxgl_nullrect(&intersection)) { - // Initialize the bitmap memory by reading from the display. The - // font renderer always renders the fonts on a transparent background. - // Sometimes a solid background works, sometimes not. But reading - // from graphics memory always works. - -#ifdef CONFIG_NX_WRITEONLY - // Set the glyph memory to the background color - - nxwidget_pixel_t *bmPtr = (nxwidget_pixel_t *)bitmap.data; - unsigned int npixels = fontWidth * fontHeight; - for (unsigned int j = 0; j < npixels; j++) + // If we have been given a background color, use it to fill the array. + // Otherwise initialize the bitmap memory by reading from the display. + // The font renderer always renders the fonts on a transparent background. + + if (!transparent) { - *bmPtr++ = m_backColor; + // Set the glyph memory to the background color + + nxwidget_pixel_t *bmPtr = (nxwidget_pixel_t *)bitmap.data; + unsigned int npixels = fontWidth * bmHeight; + for (unsigned int j = 0; j < npixels; j++) + { + *bmPtr++ = background; + } + } + else + { + // Read the current contents of the destination into the glyph memory + + m_pNxWnd->getRectangle(&dest, &bitmap); } -#else - // Read the current contents of the destination into the glyph memory - m_pNxWnd->getRectangle(&dest, &bitmap); -#endif // Render the font into the initialized bitmap font->drawChar(&bitmap, letter); @@ -827,7 +885,7 @@ void CGraphicsPort::move(nxgl_coord_t x, nxgl_coord_t y, rect.pt1.x = x; rect.pt1.y = y; rect.pt2.x = x + width - 1; - rect.pt2.y = y = height -1; + rect.pt2.y = y + height - 1; struct nxgl_point_s offset; offset.x = deltaX; |