Merge pull request #566 from mikkeloscar/tabbed-stacking-layout

Tabbed and stacked layout

1 files changed, 226 insertions, 71 deletions

diff --git a/sway/border.c b/sway/border.c
index a6ed4238..cec443f4 100644
--- a/sway/border.c
+++ b/sway/border.c
@@ -11,37 +11,40 @@
 #include <arpa/inet.h>
 
 void cairo_set_source_u32(cairo_t *cairo, uint32_t color) {
-    color = htonl(color);
+	color = htonl(color);
 
-    cairo_set_source_rgba(cairo,
-            (color >> (2*8) & 0xFF) / 255.0,
-            (color >> (1*8) & 0xFF) / 255.0,
-            (color >> (0*8) & 0xFF) / 255.0,
-            (color >> (3*8) & 0xFF) / 255.0);
+	cairo_set_source_rgba(cairo,
+		(color >> (2*8) & 0xFF) / 255.0,
+		(color >> (1*8) & 0xFF) / 255.0,
+		(color >> (0*8) & 0xFF) / 255.0,
+		(color >> (3*8) & 0xFF) / 255.0);
 }
 
-static cairo_t *create_border_buffer(swayc_t *view, struct wlc_geometry geo, cairo_surface_t **surface) {
+static cairo_t *create_border_buffer(swayc_t *view, struct wlc_geometry g, cairo_surface_t **surface) {
+	if (view->border == NULL) {
+		view->border = malloc(sizeof(struct border));
+	}
 	cairo_t *cr;
-	view->border_geometry = geo;
-	int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, geo.size.w);
-	view->border = calloc(stride * geo.size.h, sizeof(unsigned char));
-	if (!view->border) {
+	int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, g.size.w);
+	view->border->buffer = calloc(stride * g.size.h, sizeof(unsigned char));
+	view->border->geometry = g;
+	if (!view->border->buffer) {
 		sway_log(L_DEBUG, "Unable to allocate buffer");
 		return NULL;
 	}
-	*surface = cairo_image_surface_create_for_data(view->border,
-			CAIRO_FORMAT_ARGB32, geo.size.w, geo.size.h, stride);
+	*surface = cairo_image_surface_create_for_data(view->border->buffer,
+			CAIRO_FORMAT_ARGB32, g.size.w, g.size.h, stride);
 	if (cairo_surface_status(*surface) != CAIRO_STATUS_SUCCESS) {
 		free(view->border);
-		view->border = NULL;
+		view->border->buffer = NULL;
 		sway_log(L_DEBUG, "Unable to allocate surface");
 		return NULL;
 	}
 	cr = cairo_create(*surface);
 	if (cairo_status(cr) != CAIRO_STATUS_SUCCESS) {
 		cairo_surface_destroy(*surface);
-		free(view->border);
-		view->border = NULL;
+		free(view->border->buffer);
+		view->border->buffer = NULL;
 		sway_log(L_DEBUG, "Unable to create cairo context");
 		return NULL;
 	}
@@ -91,16 +94,20 @@ int get_font_text_height(const char *font) {
 	return height;
 }
 
-static void render_borders(swayc_t *view, cairo_t *cr, struct border_colors *colors) {
+static void render_borders(swayc_t *view, cairo_t *cr, struct border_colors *colors, bool top) {
+	struct wlc_geometry *g = &view->border->geometry;
 	struct wlc_geometry *b = &view->border_geometry;
 	struct wlc_geometry *v = &view->actual_geometry;
 
+	int x = b->origin.x - g->origin.x;
+	int y = b->origin.y - g->origin.y;
+
 	// left border
 	int left_border = v->origin.x - b->origin.x;
 	if (left_border > 0) {
 		render_sharp_line(cr,
 				colors->child_border,
-				0, 0,
+				x, y,
 				left_border,
 				b->size.h);
 	}
@@ -110,18 +117,18 @@ static void render_borders(swayc_t *view, cairo_t *cr, struct border_colors *col
 	if (right_border > 0) {
 		render_sharp_line(cr,
 				colors->child_border,
-				b->size.w - right_border,
-				0,
+				x + b->size.w - right_border,
+				y,
 				right_border,
 				b->size.h);
 	}
 
 	// top border
 	int top_border = v->origin.y - b->origin.y;
-	if (top_border > 0) {
+	if (top && top_border > 0) {
 		render_sharp_line(cr,
 				colors->child_border,
-				0, 0,
+				x, y,
 				b->size.w,
 				top_border);
 	}
@@ -131,45 +138,63 @@ static void render_borders(swayc_t *view, cairo_t *cr, struct border_colors *col
 	if (bottom_border > 0) {
 		render_sharp_line(cr,
 				colors->child_border,
-				0,
-				b->size.h - bottom_border,
+				x,
+				y + b->size.h - bottom_border,
 				b->size.w,
 				bottom_border);
 	}
 }
 
-static void render_with_title_bar(swayc_t *view, cairo_t *cr, struct border_colors *colors) {
+static void render_title_bar(swayc_t *view, cairo_t *cr, struct wlc_geometry *b, struct border_colors *colors) {
 	struct wlc_geometry *tb = &view->title_bar_geometry;
-	struct wlc_geometry *b = &view->border_geometry;
-	int title_y = MIN(view->actual_geometry.origin.y - (int)tb->size.h, 0);
-
-	// borders
-	render_borders(view, cr, colors);
+	int x = MIN(tb->origin.x, tb->origin.x - b->origin.x);
+	int y = MIN(tb->origin.y, tb->origin.y - b->origin.y);
 
 	// title bar background
 	cairo_set_source_u32(cr, colors->background);
-	cairo_rectangle(cr, 0, title_y, tb->size.w, tb->size.h);
+	cairo_rectangle(cr, x, y, tb->size.w, tb->size.h);
 	cairo_fill(cr);
 
 	// header top line
-	render_sharp_line(cr, colors->border, 0, title_y, tb->size.w, 1);
+	render_sharp_line(cr, colors->border, x, y, tb->size.w, 1);
 
 	// text
 	if (view->name) {
 		int width, height;
 		get_text_size(cr, config->font, &width, &height, false, "%s", view->name);
-		int x = MIN(view->actual_geometry.origin.x, view->border_thickness);
-		int y = MIN(view->actual_geometry.origin.y - height - 2, 2);
-		cairo_move_to(cr, x, y);
+		cairo_move_to(cr, x + 2, y + 2);
 		cairo_set_source_u32(cr, colors->text);
 		pango_printf(cr, config->font, false, "%s", view->name);
 	}
 
-	// header bottom line
-	render_sharp_line(cr, colors->border,
-			view->actual_geometry.origin.x - b->origin.x,
-			title_y + tb->size.h - 1,
-			view->actual_geometry.size.w, 1);
+	// titlebars has a border all around for tabbed layouts
+	if (view->parent->layout == L_TABBED) {
+		// header bottom line
+		render_sharp_line(cr, colors->border, x, y + tb->size.h - 1,
+				tb->size.w, 1);
+
+		// left border
+		render_sharp_line(cr, colors->border, x, y, 1, tb->size.h);
+
+		// right border
+		render_sharp_line(cr, colors->border, x + tb->size.w - 1, y,
+				1, tb->size.h);
+
+		return;
+	}
+
+	if ((uint32_t)(view->actual_geometry.origin.y - tb->origin.y) == tb->size.h) {
+		// header bottom line
+		render_sharp_line(cr, colors->border,
+				x + view->actual_geometry.origin.x - tb->origin.x,
+				y + tb->size.h - 1,
+				view->actual_geometry.size.w, 1);
+	} else {
+		// header bottom line
+		render_sharp_line(cr, colors->border, x,
+				y + tb->size.h - 1,
+				tb->size.w, 1);
+	}
 }
 
 void map_update_view_border(swayc_t *view, void *data) {
@@ -178,15 +203,104 @@ void map_update_view_border(swayc_t *view, void *data) {
 	}
 }
 
+/**
+ * Generate nested container title for tabbed/stacked layouts
+ */
+static char *generate_container_title(swayc_t *container) {
+	char layout = 'H';
+	char *name, *prev_name = NULL;
+	switch (container->layout) {
+	case L_TABBED:
+		layout = 'T';
+		break;
+	case L_STACKED:
+		layout = 'S';
+		break;
+	case L_VERT:
+		layout = 'V';
+		break;
+	default:
+		layout = 'H';
+	}
+	int len = 9;
+	name = malloc(len * sizeof(char));
+	snprintf(name, len, "sway: %c[", layout);
+
+	int i;
+	for (i = 0; i < container->children->length; ++i) {
+		prev_name = name;
+		swayc_t* child = container->children->items[i];
+		const char *title = child->name;
+		if (child->type == C_CONTAINER) {
+			title = generate_container_title(child);
+		}
+
+		len = strlen(name) + strlen(title) + 1;
+		if (i < container->children->length-1) {
+			len++;
+		}
+
+		name = malloc(len * sizeof(char));
+		if (i < container->children->length-1) {
+			snprintf(name, len, "%s%s ", prev_name, title);
+		} else {
+			snprintf(name, len, "%s%s", prev_name, title);
+		}
+		free(prev_name);
+	}
+
+	prev_name = name;
+	len = strlen(name) + 2;
+	name = malloc(len * sizeof(char));
+	snprintf(name, len, "%s]", prev_name);
+	free(prev_name);
+	free(container->name);
+	container->name = name;
+	return container->name + 6; // don't include "sway: "
+}
+
+void update_tabbed_stacked_titlebars(swayc_t *c, cairo_t *cr, struct wlc_geometry *g, swayc_t *focused, swayc_t *focused_inactive) {
+	if (c->type == C_CONTAINER) {
+		if (c->parent->focused == c) {
+			render_title_bar(c, cr, g, &config->border_colors.focused_inactive);
+		} else {
+			render_title_bar(c, cr, g, &config->border_colors.unfocused);
+		}
+
+		if (!c->visible) {
+			return;
+		}
+
+		int i;
+		for (i = 0; i < c->children->length; ++i) {
+			swayc_t *child = c->children->items[i];
+			update_tabbed_stacked_titlebars(child, cr, g, focused, focused_inactive);
+		}
+	} else {
+		if (focused == c) {
+			render_title_bar(c, cr, g, &config->border_colors.focused);
+		} else if (focused_inactive == c) {
+			render_title_bar(c, cr, g, &config->border_colors.focused_inactive);
+		} else {
+			render_title_bar(c, cr, g, &config->border_colors.unfocused);
+		}
+	}
+}
+
 void update_view_border(swayc_t *view) {
+	if (!view->visible) {
+		return;
+	}
+
 	cairo_t *cr = NULL;
 	cairo_surface_t *surface = NULL;
 
-	if (view->border) {
-		free(view->border);
-		view->border = NULL;
+	if (view->border && view->border->buffer) {
+		free(view->border->buffer);
+		view->border->buffer = NULL;
 	}
 
+	// get focused and focused_inactive views
 	swayc_t *focused = get_focused_view(&root_container);
 	swayc_t *container = swayc_parent_by_type(view, C_CONTAINER);
 	swayc_t *focused_inactive = NULL;
@@ -199,44 +313,85 @@ void update_view_border(swayc_t *view) {
 		}
 	}
 
-	switch (view->border_type) {
-	case B_NONE:
-		break;
-	case B_PIXEL:
-		cr = create_border_buffer(view, view->border_geometry, &surface);
-		if (!cr) {
-			break;
+	// for tabbed/stacked layouts the focused view has to draw all the
+	// titlebars of the hidden views.
+	swayc_t *p = swayc_tabbed_stacked_parent(view);
+	if (p && view->parent->focused == view) {
+		struct wlc_geometry g = {
+			.origin = {
+				.x = p->x,
+				.y = p->y
+			},
+			.size = {
+				.w = p->width,
+				.h = p->height
+			}
+		};
+		cr = create_border_buffer(view, g, &surface);
+		if (view == focused) {
+			render_borders(view, cr, &config->border_colors.focused, false);
+		} else {
+			render_borders(view, cr, &config->border_colors.focused_inactive, false);
 		}
 
-		if (focused == view) {
-			render_borders(view, cr, &config->border_colors.focused);
-		} else if (focused_inactive == view) {
-			render_borders(view, cr, &config->border_colors.focused_inactive);
-		} else {
-			render_borders(view, cr, &config->border_colors.unfocused);
+		// generate container titles
+		int i;
+		for (i = 0; i < p->children->length; ++i) {
+			swayc_t *child = p->children->items[i];
+			if (child->type == C_CONTAINER) {
+				generate_container_title(child);
+			}
 		}
 
-		break;
-	case B_NORMAL:
-		cr = create_border_buffer(view, view->border_geometry, &surface);
-		if (!cr) {
+		update_tabbed_stacked_titlebars(p, cr, &g, focused, focused_inactive);
+	} else {
+		switch (view->border_type) {
+		case B_NONE:
 			break;
-		}
+		case B_PIXEL:
+			cr = create_border_buffer(view, view->border_geometry, &surface);
+			if (!cr) {
+				break;
+			}
 
-		if (focused == view) {
-			render_with_title_bar(view, cr, &config->border_colors.focused);
-		} else if (focused_inactive == view) {
-			render_with_title_bar(view, cr, &config->border_colors.focused_inactive);
-		} else {
-			render_with_title_bar(view, cr, &config->border_colors.unfocused);
-		}
+			if (focused == view) {
+				render_borders(view, cr, &config->border_colors.focused, true);
+			} else if (focused_inactive == view) {
+				render_borders(view, cr, &config->border_colors.focused_inactive, true);
+			} else {
+				render_borders(view, cr, &config->border_colors.unfocused, true);
+			}
 
-		break;
+			break;
+		case B_NORMAL:
+			cr = create_border_buffer(view, view->border_geometry, &surface);
+			if (!cr) {
+				break;
+			}
+
+			if (focused == view) {
+				render_borders(view, cr, &config->border_colors.focused, false);
+				render_title_bar(view, cr, &view->border_geometry,
+					&config->border_colors.focused);
+			} else if (focused_inactive == view) {
+				render_borders(view, cr, &config->border_colors.focused_inactive, false);
+				render_title_bar(view, cr, &view->border_geometry,
+					&config->border_colors.focused_inactive);
+			} else {
+				render_borders(view, cr, &config->border_colors.unfocused, false);
+				render_title_bar(view, cr, &view->border_geometry,
+					&config->border_colors.unfocused);
+			}
+
+			break;
+		}
 	}
+
 	if (surface) {
 		cairo_surface_flush(surface);
 		cairo_surface_destroy(surface);
 	}
+
 	if (cr) {
 		cairo_destroy(cr);
 	}
@@ -262,7 +417,7 @@ void render_view_borders(wlc_handle view) {
 		}
 	}
 
-	if (c->border) {
-		wlc_pixels_write(WLC_RGBA8888, &c->border_geometry, c->border);
+	if (c->border && c->border->buffer) {
+		wlc_pixels_write(WLC_RGBA8888, &c->border->geometry, c->border->buffer);
 	}
 }