diff options
Diffstat (limited to 'helpers.c')
| -rw-r--r-- | helpers.c | 47 |
1 files changed, 47 insertions, 0 deletions
@@ -1,6 +1,7 @@ #include <string> #include <sstream> #include <vector> +#include "config.h" #include "helpers.h" #include <vdr/skins.h> @@ -66,6 +67,52 @@ void DrawRoundedCornersWithBorder(cPixmap *p, tColor borderColor, int radius, in p->DrawEllipse(cRect(width-radius+1,height-radius+1,radius,radius), clrTransparent, -4); } +void DrawProgressbar(cPixmap *p, int left, int top, int width, int height, int Current, int Total, tColor clr1, tColor clr2, bool blend) { + if (Current == 0) { + p->DrawEllipse(cRect(left, top, height, height), blend ? clr2 : clr1); + return; + } else + p->DrawEllipse(cRect(left, top, height, height), clr2); + + width = width - height; // width of gradient (width - ellipse) + double percent = ((double)Current) / (double)Total; + double progresswidth = width * percent; + + tColor clr = blend ? clr2 : clr1; + int alpha = 0x0; // 0...255 + int alphaStep = 0x1; + int maximumsteps = 256; // alphaStep * maximumsteps <= 256 + int factor = 2; // max. 128 steps + + bool partial = false; + double step = 0; + if (partial) { + step = (double)width / maximumsteps; // shows a progresswidth part of color gradient + maximumsteps = (double)maximumsteps * percent; + } else + step = progresswidth / maximumsteps; // shows a progresswidth full color gradient + + if (!partial && progresswidth < 128) { // width < 128 + factor = 4 * factor; // 32 steps + } else if (progresswidth < 256) { // width < 256 + factor = 2 * factor; // 64 steps + } + + step = step * factor; + alphaStep = alphaStep * factor; + maximumsteps = maximumsteps / factor; + + int x = left + height / 2; + for (int i = 0; i < maximumsteps; i++) { + x = left + height / 2 + i * step; + clr = AlphaBlend(clr1, clr2, alpha); + p->DrawRectangle(cRect(x, top, step + 1, height), clr); + alpha += alphaStep; + } + x = x + step - height / 2; + p->DrawEllipse(cRect(x, top, height, height), clr); +} + cSize ScaleToFit(int widthMax, int heightMax, int widthOriginal, int heightOriginal) { int width = 1; int height = 1; |