X-Git-Url: https://git.brokenzipper.com/gitweb?a=blobdiff_plain;f=otk%2Frendercontrol.cc;h=802c7f55aee4f64d7256f73eeffe0d3e73ed2402;hb=e451c08ac5a103362adbece9b8a11a16ade739c1;hp=edf4a470d5bff80f17d04f1b17ec7a2ffe4ce1a1;hpb=3147ad1a60db250b5b552a406dc33046d250cfea;p=chaz%2Fopenbox

diff --git a/otk/rendercontrol.cc b/otk/rendercontrol.cc
index edf4a470..802c7f55 100644
--- a/otk/rendercontrol.cc
+++ b/otk/rendercontrol.cc
@@ -214,4 +214,285 @@ void RenderControl::drawMask(Surface &sf, const RenderColor &color,
   XSetClipOrigin(**display, color.gc(), 0, 0);
 }
 
+void RenderControl::drawGradientBackground(
+     Surface &sf, const RenderTexture &texture) const
+{
+  unsigned int r,g,b;
+  int w = sf.size().width(), h = sf.size().height();
+  int off, x;
+
+  const ScreenInfo *info = display->screenInfo(_screen);
+  XImage *im = XCreateImage(**display, info->visual(), info->depth(),
+                            ZPixmap, 0, NULL, w, h, 32, 0);
+  im->byte_order = endian;
+
+  switch (texture.gradient()) {
+  case RenderTexture::Vertical:
+    verticalGradient(sf, texture);
+    break;
+  case RenderTexture::Diagonal:
+    diagonalGradient(sf, texture);
+    break;
+  case RenderTexture::CrossDiagonal:
+    crossDiagonalGradient(sf, texture);
+    break;
+  default:
+    printf("unhandled gradient\n");
+  }
+
+  pixel32 *data = sf.pixelData();
+  pixel32 current;
+  
+  if (texture.relief() == RenderTexture::Flat && texture.border()) {
+    r = texture.borderColor().red();
+    g = texture.borderColor().green();
+    b = texture.borderColor().blue();
+    current = (r << default_red_shift)
+            + (g << default_green_shift)
+            + (b << default_blue_shift);
+    for (off = 0, x = 0; x < w; ++x, off++) {
+      *(data + off) = current;
+      *(data + off + ((h-1) * w)) = current;
+    }
+    for (off = 0, x = 0; x < h; ++x, off++) {
+      *(data + (off * w)) = current;
+      *(data + (off * w) + w - 1) = current;
+    }
+  }
+
+  if (texture.relief() != RenderTexture::Flat) {
+    if (texture.bevel() == RenderTexture::Bevel1) {
+      for (off = 1, x = 1; x < w - 1; ++x, off++)
+        highlight(data + off,
+                  data + off + (h-1) * w,
+                  texture.relief()==RenderTexture::Raised);
+      for (off = 0, x = 0; x < h; ++x, off++)
+        highlight(data + off * w,
+                  data + off * w + w - 1,
+                  texture.relief()==RenderTexture::Raised);
+    }
+
+    if (texture.bevel() == RenderTexture::Bevel2) {
+      for (off = 2, x = 2; x < w - 2; ++x, off++)
+        highlight(data + off + w,
+                  data + off + (h-2) * w,
+                  texture.relief()==RenderTexture::Raised);
+      for (off = 1, x = 1; x < h-1; ++x, off++)
+        highlight(data + off * w + 1,
+                  data + off * w + w - 2,
+                  texture.relief()==RenderTexture::Raised);
+    }
+  }
+
+  reduceDepth(sf, im);
+
+  im->data = (char*) data;
+
+  sf.setPixmap(im);
+
+  im->data = NULL;
+  XDestroyImage(im);
+}
+
+void RenderControl::verticalGradient(Surface &sf,
+                                         const RenderTexture &texture) const
+{
+  pixel32 *data = sf.pixelData();
+  pixel32 current;
+  float dr, dg, db;
+  unsigned int r,g,b;
+  int w = sf.size().width(), h = sf.size().height();
+
+  dr = (float)(texture.secondary_color().red() - texture.color().red());
+  dr/= (float)h;
+
+  dg = (float)(texture.secondary_color().green() - texture.color().green());
+  dg/= (float)h;
+
+  db = (float)(texture.secondary_color().blue() - texture.color().blue());
+  db/= (float)h;
+
+  for (int y = 0; y < h; ++y) {
+    r = texture.color().red() + (int)(dr * y);
+    g = texture.color().green() + (int)(dg * y);
+    b = texture.color().blue() + (int)(db * y);
+    current = (r << default_red_shift)
+            + (g << default_green_shift)
+            + (b << default_blue_shift);
+    for (int x = 0; x < w; ++x, ++data)
+      *data = current;
+  }
+}
+
+void RenderControl::diagonalGradient(Surface &sf,
+                                         const RenderTexture &texture) const
+{
+  pixel32 *data = sf.pixelData();
+  pixel32 current;
+  float drx, dgx, dbx, dry, dgy, dby;
+  unsigned int r,g,b;
+  int w = sf.size().width(), h = sf.size().height();
+
+  for (int y = 0; y < h; ++y) {
+    drx = (float)(texture.secondary_color().red() - texture.color().red());
+    dry = drx/(float)h;
+    drx/= (float)w;
+
+    dgx = (float)(texture.secondary_color().green() - texture.color().green());
+    dgy = dgx/(float)h;
+    dgx/= (float)w;
+
+    dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
+    dby = dbx/(float)h;
+    dbx/= (float)w;
+    for (int x = 0; x < w; ++x, ++data) {
+      r = texture.color().red() + ((int)(drx * x) + (int)(dry * y))/2;
+      g = texture.color().green() + ((int)(dgx * x) + (int)(dgy * y))/2;
+      b = texture.color().blue() + ((int)(dbx * x) + (int)(dby * y))/2;
+      current = (r << default_red_shift)
+              + (g << default_green_shift)
+              + (b << default_blue_shift);
+      *data = current;
+    }
+  }
+}
+
+void RenderControl::crossDiagonalGradient(
+  Surface &sf, const RenderTexture &texture) const
+{
+  pixel32 *data = sf.pixelData();
+  pixel32 current;
+  float drx, dgx, dbx, dry, dgy, dby;
+  unsigned int r,g,b;
+  int w = sf.size().width(), h = sf.size().height();
+
+  for (int y = 0; y < h; ++y) {
+    drx = (float)(texture.secondary_color().red() - texture.color().red());
+    dry = drx/(float)h;
+    drx/= (float)w;
+
+    dgx = (float)(texture.secondary_color().green() - texture.color().green());
+    dgy = dgx/(float)h;
+    dgx/= (float)w;
+
+    dbx = (float)(texture.secondary_color().blue() - texture.color().blue());
+    dby = dbx/(float)h;
+    dbx/= (float)w;
+    for (int x = w; x > 0; --x, ++data) {
+      r = texture.color().red() + ((int)(drx * (x-1)) + (int)(dry * y))/2;
+      g = texture.color().green() + ((int)(dgx * (x-1)) + (int)(dgy * y))/2;
+      b = texture.color().blue() + ((int)(dbx * (x-1)) + (int)(dby * y))/2;
+      current = (r << default_red_shift)
+              + (g << default_green_shift)
+              + (b << default_blue_shift);
+      *data = current;
+    }
+  }
+}
+
+void RenderControl::highlight(pixel32 *x, pixel32 *y, bool raised) const
+{
+  int r, g, b;
+
+  pixel32 *up, *down;
+  if (raised) {
+    up = x;
+    down = y;
+  } else {
+    up = y;
+    down = x;
+  }
+  r = (*up >> default_red_shift) & 0xFF;
+  r += r >> 1;
+  g = (*up >> default_green_shift) & 0xFF;
+  g += g >> 1;
+  b = (*up >> default_blue_shift) & 0xFF;
+  b += b >> 1;
+  if (r > 255) r = 255;
+  if (g > 255) g = 255;
+  if (b > 255) b = 255;
+  *up = (r << default_red_shift) + (g << default_green_shift)
+      + (b << default_blue_shift);
+  
+  r = (*down >> default_red_shift) & 0xFF;
+  r = (r >> 1) + (r >> 2);
+  g = (*down >> default_green_shift) & 0xFF;
+  g = (g >> 1) + (g >> 2);
+  b = (*down >> default_blue_shift) & 0xFF;
+  b = (b >> 1) + (b >> 2);
+  *down = (r << default_red_shift) + (g << default_green_shift)
+        + (b << default_blue_shift);
+}
+
+void RenderControl::drawBackground(Surface& sf,
+				       const RenderTexture &texture) const
+{
+  assert(_screen == sf._screen);
+  assert(_screen == texture.color().screen());
+
+  if (texture.gradient() == RenderTexture::Solid)
+    drawSolidBackground(sf, texture);
+  else
+    drawGradientBackground(sf, texture);
+}
+
+
+void RenderControl::drawImage(Surface &sf, int w, int h,
+                                  unsigned long *data) const
+{
+  pixel32 *bg = sf.pixelData();
+  int startx, x, y, c;
+  unsigned int i, e;
+  x = (sf.size().width() - w) / 2;
+  y = (sf.size().height() - h) / 2;
+
+  if (x < 0) x = 0;
+  if (y < 0) y = 0;
+
+  // XX SCALING!@!&*(@! to make it fit on the surface
+
+  startx = x;
+  
+  for (i = 0, c = 0, e = w*h; i < e; ++i) {
+    unsigned char alpha = data[i] >> 24;
+    unsigned char r = data[i] >> 16;
+    unsigned char g = data[i] >> 8;
+    unsigned char b = data[i];
+
+    // background color
+    unsigned char bgr = bg[i] >> default_red_shift;
+    unsigned char bgg = bg[i] >> default_green_shift;
+    unsigned char bgb = bg[i] >> default_blue_shift;
+      
+    r = bgr + (r - bgr) * alpha >> 8;
+    g = bgg + (g - bgg) * alpha >> 8;
+    b = bgb + (b - bgb) * alpha >> 8;
+
+    bg[i] = (r << default_red_shift) | (g << default_green_shift) |
+      (b << default_blue_shift);
+
+    if (++c >= w) {
+      ++y;
+      x = startx;
+      c = 0;
+    } else
+      ++x;
+  }
+
+  const ScreenInfo *info = display->screenInfo(_screen);
+  XImage *im = XCreateImage(**display, info->visual(), info->depth(),
+                            ZPixmap, 0, NULL, sf.size().width(),
+                            sf.size().height(), 32, 0);
+  im->byte_order = endian;
+
+  reduceDepth(sf, im);
+
+  im->data = (char*) bg;
+
+  sf.setPixmap(im);
+
+  im->data = NULL;
+  XDestroyImage(im);
+}
+
 }