namespace otk {
-RenderControl *RenderControl::getRenderControl(int screen)
+RenderControl *RenderControl::createRenderControl(int screen)
{
// get the visual on the screen and return the correct type of RenderControl
int vclass = display->screenInfo(screen)->visual()->c_class;
case RenderTexture::Vertical:
verticalGradient(sf, texture);
break;
+ case RenderTexture::Horizontal:
+ horizontalGradient(sf, texture);
+ break;
case RenderTexture::Diagonal:
diagonalGradient(sf, texture);
break;
}
}
+void RenderControl::horizontalGradient(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)w;
+
+ dg = (float)(texture.secondary_color().green() - texture.color().green());
+ dg/= (float)w;
+
+ db = (float)(texture.secondary_color().blue() - texture.color().blue());
+ db/= (float)w;
+
+ for (int x = 0; x < w; ++x, ++data) {
+ r = texture.color().red() + (int)(dr * x);
+ g = texture.color().green() + (int)(dg * x);
+ b = texture.color().blue() + (int)(db * x);
+ current = (r << default_red_shift)
+ + (g << default_green_shift)
+ + (b << default_blue_shift);
+ for (int y = 0; y < h; ++y)
+ *(data + y*w) = current;
+ }
+}
+
void RenderControl::diagonalGradient(Surface &sf,
const RenderTexture &texture) const
{
unsigned long *data) const
{
pixel32 *bg = sf.pixelData();
- int x, y, c, sfw, sfh;
+ int c, sfw, sfh;
unsigned int i, e, bgi;
sfw = sf.size().width();
sfh = sf.size().height();
- x = (sfw - w) / 2;
- y = (sfh - h) / 2;
-
- if (x < 0) x = 0;
- if (y < 0) y = 0;
-
- // Reduce the image size if its too big to make it fit on the surface
- int oldw = w, oldh = h;
- unsigned long *olddata = data;
- if (w > sfw) w = sfw;
- if (h > sfh) h = sfh;
- unsigned long newdata[w*h];
- if (w < oldw || h < oldh) {
- double dx = oldw / (double)w;
- double dy = oldh / (double)h;
+
+ if (w && h) {
+ // scale it
+ unsigned long *olddata = data;
+ unsigned long newdata[sfw*sfh];
+ double dx = w / (double)sfw;
+ double dy = h / (double)sfh;
double px = 0.0;
double py = 0.0;
int iy = 0;
- for (i = 0, c = 0, e = w*h; i < e; ++i) {
+ for (i = 0, c = 0, e = sfw*sfh; i < e; ++i) {
newdata[i] = olddata[(int)px + iy];
- if (++c >= w) {
+ if (++c >= sfw) {
c = 0;
px = 0;
py += dy;
- iy = (int)py * oldw;
+ iy = (int)py * w;
} else
px += dx;
}
data = newdata;
- }
-
- for (i = 0, c = 0, bgi = y * sfw + x, e = w*h; i < e; ++i, ++bgi) {
- 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[bgi] >> default_red_shift;
- unsigned char bgg = bg[bgi] >> default_green_shift;
- unsigned char bgb = bg[bgi] >> default_blue_shift;
+ // apply the alpha channel
+ for (i = 0, c = 0, e = sfw*sfh; i < e; ++i, ++bgi) {
+ 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);
+ r = bgr + (((r - bgr) * alpha) >> 8);
+ g = bgg + (((g - bgg) * alpha) >> 8);
+ b = bgb + (((b - bgb) * alpha) >> 8);
- bg[bgi] = (r << default_red_shift) | (g << default_green_shift) |
- (b << default_blue_shift);
-
- if (++c >= w) {
- c = 0;
- bgi += sfw - w;
+ bg[i] = (r << default_red_shift) | (g << default_green_shift) |
+ (b << default_blue_shift);
}
}
XDestroyImage(im);
}
+void RenderControl::drawImage(Surface &sf, Pixmap pixmap, Pixmap mask) const
+{
+ int junk, sfw, sfh, w, h, depth, mw, mh, mdepth;
+ Window wjunk;
+ const ScreenInfo *info = display->screenInfo(_screen);
+ GC mgc = 0;
+
+ assert(pixmap != None);
+
+ sfw = sf.size().width();
+ sfh = sf.size().height();
+
+ XGetGeometry(**display, pixmap, &wjunk, &junk, &junk,
+ (unsigned int*)&w, (unsigned int*)&h,
+ (unsigned int*)&junk, (unsigned int*)&depth);
+ if (mask != None) {
+ XGetGeometry(**display, mask, &wjunk, &junk, &junk,
+ (unsigned int*)&mw, (unsigned int*)&mh,
+ (unsigned int*)&junk, (unsigned int*)&mdepth);
+ if (mw != w || mh != h || mdepth != 1)
+ return;
+ }
+
+ Pixmap p = XCreatePixmap(**display, info->rootWindow(), sfw, sfh,
+ info->depth());
+ Pixmap m;
+ if (mask == None)
+ m = None;
+ else {
+ m = XCreatePixmap(**display, info->rootWindow(), sfw, sfh, 1);
+ XGCValues gcv;
+ gcv.subwindow_mode = IncludeInferiors;
+ gcv.graphics_exposures = false;
+ mgc = XCreateGC(**display, m, GCGraphicsExposures |
+ GCSubwindowMode, &gcv);
+ }
+
+ // scale it
+ for (int y = sfh - 1; y >= 0; --y) {
+ int yy = y * h / sfh;
+ for (int x = sfw - 1; x >= 0; --x) {
+ int xx = x * w / sfw;
+ if (depth != info->depth()) {
+ XCopyPlane(**display, pixmap, p, DefaultGC(**display, _screen),
+ xx, yy, 1, 1, x, y, 1);
+ } else {
+ XCopyArea(**display, pixmap, p, DefaultGC(**display, _screen),
+ xx, yy, 1, 1, x, y);
+ }
+ if (mask != None)
+ XCopyArea(**display, mask, m, mgc, xx, yy, 1, 1, x, y);
+ }
+ }
+
+ XSetClipMask(**display, DefaultGC(**display, _screen), m);
+ XSetClipOrigin(**display, DefaultGC(**display, _screen), 0, 0);
+ XCopyArea(**display, p, sf.pixmap(), DefaultGC(**display, _screen), 0, 0,
+ sfw, sfh, 0, 0);
+ XSetClipMask(**display, DefaultGC(**display, _screen), None);
+
+ XFreePixmap(**display, p);
+ if (m != None) XFreePixmap(**display, m);
+}
+
}
projects / chaz / openbox / blobdiff