diff --git a/main.c b/main.c index 3b06a5c..921567b 100644 --- a/main.c +++ b/main.c @@ -12,7 +12,7 @@ */ // -------------- -// TextBar v0.1.1 +// TextBar v0.1.2 // -------------- // Usage: | textbar | // @@ -23,9 +23,6 @@ // Line buffered // Prints all mouse clicks to stdout // In the format of `X Y` (without the '`') -// -// When the X server is lagging, the bar will set the background color to 0,0,0,0 for a single frame in a given frequency. The more X is lagging, the more frequently it will do so. -// I swear this is an intented feature. #include @@ -48,7 +45,9 @@ Display* dpy; Window win; cairo_surface_t* sfc; +cairo_surface_t* sfc2; cairo_t* ctx; +cairo_t* ctx2; char text[256] = {0}; char text_other[256] = {0}; int width; @@ -74,8 +73,8 @@ void init() { XMatchVisualInfo(dpy, screen, 32, TrueColor, &visualinfo); XSetWindowAttributes attr; attr.colormap = XCreateColormap(dpy, DefaultRootWindow(dpy), visualinfo.visual, AllocNone); - attr.background_pixel = 0; - attr.border_pixel = 0; + attr.background_pixel = 0; + attr.border_pixel = 0; win = XCreateWindow(dpy, DefaultRootWindow(dpy), 0, 0, width, HEIGHT, 0, visualinfo.depth, InputOutput, visualinfo.visual, CWBackPixel | CWColormap | CWBorderPixel, &attr); @@ -102,35 +101,46 @@ void init() { XMapWindow(dpy, win); sfc = cairo_xlib_surface_create(dpy, win, visualinfo.visual, DisplayWidth(dpy, screen), HEIGHT); + sfc2 = cairo_surface_create_similar(sfc, CAIRO_CONTENT_COLOR_ALPHA, DisplayWidth(dpy, screen), HEIGHT); ctx = cairo_create(sfc); + ctx2 = cairo_create(sfc2); } pthread_mutex_t do_paint; void paint(Display* dpy) { if(!pthread_mutex_lock(&do_paint)) { - //cairo_set_source_rgba(ctx, 0.0, 0.0, 0.0, 0.0); - //cairo_set_operator(ctx, CAIRO_OPERATOR_SOURCE); - //cairo_paint(ctx); - //TODO: fix alpha - //NOTE: comment the following line if you do not use transparency. - XClearWindow(dpy, win); - cairo_push_group(ctx); - cairo_set_operator(ctx, CAIRO_OPERATOR_OVER); - cairo_set_source_rgba(ctx, BG_COLOR); - cairo_paint(ctx); - cairo_move_to(ctx, FONT_SIZE / 2, FONT_POS); - cairo_select_font_face(ctx, FONT, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); - cairo_set_font_size(ctx, FONT_SIZE); - cairo_set_source_rgba(ctx, FG_COLOR); - cairo_show_text(ctx, text); + // Clear + cairo_set_source_rgba(ctx2, 0.0, 0.0, 0.0, 0.0); + cairo_set_operator(ctx2, CAIRO_OPERATOR_SOURCE); + cairo_paint(ctx2); + cairo_set_operator(ctx2, CAIRO_OPERATOR_OVER); + + // Background + cairo_set_source_rgba(ctx2, BG_COLOR); + cairo_paint(ctx2); + + // Left text + cairo_move_to(ctx2, FONT_SIZE / 2, FONT_POS); + cairo_select_font_face(ctx2, FONT, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size(ctx2, FONT_SIZE); + cairo_set_source_rgba(ctx2, FG_COLOR); + cairo_show_text(ctx2, text); + + // Right text cairo_text_extents_t extents; - cairo_text_extents(ctx, text_other, &extents); - cairo_move_to(ctx, (width-extents.width) - FONT_SIZE / 2, FONT_POS); - cairo_show_text(ctx, text_other); - cairo_pop_group_to_source(ctx); + cairo_text_extents(ctx2, text_other, &extents); + cairo_move_to(ctx2, (width-extents.width) - FONT_SIZE / 2, FONT_POS); + cairo_show_text(ctx2, text_other); + + // Backbuffer -> Frontbuffer + cairo_set_source_surface(ctx, sfc2, 0, 0); + cairo_set_operator(ctx, CAIRO_OPERATOR_SOURCE); cairo_paint(ctx); + + // Flushing cairo_surface_flush(sfc); XFlush(dpy); + pthread_mutex_unlock(&do_paint); } } @@ -156,8 +166,7 @@ void x_loop() { if(e.type == ButtonPress) { printf("%d %d\n", e.xbutton.x, e.xbutton.y); fflush(stdout); - } else - if(e.type == ConfigureNotify) { + } else if(e.type == ConfigureNotify) { cairo_xlib_surface_set_size(sfc, e.xconfigure.width, e.xconfigure.height); } else if(e.type == Expose) {