Drew DeVault
9 years ago
commit
4bf10d7771
@ -0,0 +1,11 @@
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#ifndef _SWAY_BORDER_H
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#define _SWAY_BORDER_H
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#include <wlc/wlc.h>
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#include "container.h"
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void render_view_borders(wlc_handle view);
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void update_view_border(swayc_t *view);
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void map_update_view_border(swayc_t *view, void *data);
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int get_font_text_height(const char *font);
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#endif
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@ -1,12 +1,12 @@
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#ifndef _SWAY_CLIENT_PANGO_H
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#define _SWAY_CLIENT_PANGO_H
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#include "client/window.h"
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#include "client/buffer.h"
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#include <cairo/cairo.h>
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#include <pango/pangocairo.h>
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#include <stdarg.h>
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PangoLayout *get_pango_layout(struct window *window, struct buffer *buffer, const char *text);
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void get_text_size(struct window *window, int *width, int *height, const char *fmt, ...);
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void pango_printf(struct window *window, const char *fmt, ...);
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PangoLayout *get_pango_layout(cairo_t *cairo, const char *font, const char *text);
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void get_text_size(cairo_t *cairo, const char *font, int *width, int *height, const char *fmt, ...);
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void pango_printf(cairo_t *cairo, const char *font, const char *fmt, ...);
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#endif
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@ -0,0 +1,266 @@
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#include "border.h"
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#include <wlc/wlc-render.h>
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#include <cairo/cairo.h>
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#include <pango/pangocairo.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "container.h"
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#include "config.h"
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#include "client/pango.h"
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void cairo_set_source_u32(cairo_t *cairo, uint32_t color) {
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int endian = 1;
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if (*(char *)&endian == 1) { // little endian
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cairo_set_source_rgba(cairo,
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(color >> (1*8) & 0xFF) / 255.0,
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(color >> (2*8) & 0xFF) / 255.0,
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(color >> (3*8) & 0xFF) / 255.0,
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(color >> (0*8) & 0xFF) / 255.0);
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} else { // big endian
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cairo_set_source_rgba(cairo,
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(color >> (0*8) & 0xFF) / 255.0,
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(color >> (3*8) & 0xFF) / 255.0,
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(color >> (2*8) & 0xFF) / 255.0,
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(color >> (1*8) & 0xFF) / 255.0);
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}
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}
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static cairo_t *create_border_buffer(swayc_t *view, struct wlc_geometry geo, cairo_surface_t **surface) {
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cairo_t *cr;
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view->border_geometry = geo;
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int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, geo.size.w);
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view->border = calloc(stride * geo.size.h, sizeof(unsigned char));
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if (!view->border) {
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sway_log(L_DEBUG, "Unable to allocate buffer");
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return NULL;
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}
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*surface = cairo_image_surface_create_for_data(view->border,
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CAIRO_FORMAT_ARGB32, geo.size.w, geo.size.h, stride);
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if (cairo_surface_status(*surface) != CAIRO_STATUS_SUCCESS) {
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free(view->border);
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view->border = NULL;
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sway_log(L_DEBUG, "Unable to allocate surface");
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return NULL;
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}
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cr = cairo_create(*surface);
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if (cairo_status(cr) != CAIRO_STATUS_SUCCESS) {
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cairo_surface_destroy(*surface);
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free(view->border);
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view->border = NULL;
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sway_log(L_DEBUG, "Unable to create cairo context");
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return NULL;
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}
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return cr;
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}
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// TODO: move to client/cairo.h when local set_source_u32 is fixed.
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/**
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* Renders a sharp line of any width and height.
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*
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* The line is drawn from (x,y) to (x+width,y+height) where width/height is 0
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* if the line has a width/height of one pixel, respectively.
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*/
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static void render_sharp_line(cairo_t *cairo, uint32_t color, double x, double y, double width, double height) {
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cairo_set_source_u32(cairo, color);
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if (width > 1 && height > 1) {
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cairo_rectangle(cairo, x, y, width, height);
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cairo_fill(cairo);
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} else {
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if (width == 1) {
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x += 0.5;
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height += y;
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width = x;
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}
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if (height == 1) {
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y += 0.5;
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width += x;
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height = y;
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}
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cairo_move_to(cairo, x, y);
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cairo_set_line_width(cairo, 1.0);
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cairo_line_to(cairo, width, height);
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cairo_stroke(cairo);
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}
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}
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int get_font_text_height(const char *font) {
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cairo_surface_t *surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 200, 200);
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cairo_t *cr = cairo_create(surface);
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int width, height;
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get_text_size(cr, font, &width, &height, "Gg");
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return height;
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}
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static void render_borders(swayc_t *view, cairo_t *cr, struct border_colors *colors) {
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struct wlc_geometry *b = &view->border_geometry;
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struct wlc_geometry *v = &view->actual_geometry;
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// left border
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int left_border = v->origin.x - b->origin.x;
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if (left_border > 0) {
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render_sharp_line(cr,
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colors->child_border,
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0, 0,
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left_border,
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b->size.h);
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}
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// right border
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int right_border = b->size.w - v->size.w - left_border;
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if (right_border > 0) {
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render_sharp_line(cr,
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colors->child_border,
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b->size.w - right_border,
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0,
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right_border,
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b->size.h);
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}
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// top border
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int top_border = v->origin.y - b->origin.y;
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if (top_border > 0) {
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render_sharp_line(cr,
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colors->child_border,
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0, 0,
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b->size.w,
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top_border);
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}
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// bottom border
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int bottom_border = b->size.h - (top_border + v->size.h);
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if (bottom_border > 0) {
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render_sharp_line(cr,
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colors->child_border,
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0,
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b->size.h - bottom_border,
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b->size.w,
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bottom_border);
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}
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}
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static void render_with_title_bar(swayc_t *view, cairo_t *cr, struct border_colors *colors) {
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struct wlc_geometry *tb = &view->title_bar_geometry;
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struct wlc_geometry *b = &view->border_geometry;
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// borders
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render_borders(view, cr, colors);
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// title bar background
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cairo_set_source_u32(cr, colors->child_border);
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cairo_rectangle(cr, 0, 0, tb->size.w, tb->size.h);
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cairo_fill(cr);
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// header top line
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render_sharp_line(cr, colors->border, 0, 0, tb->size.w, 1);
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// text
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if (view->name) {
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int width, height;
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get_text_size(cr, config->font, &width, &height, "%s", view->name);
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cairo_move_to(cr, view->border_thickness, 2);
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cairo_set_source_u32(cr, colors->text);
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pango_printf(cr, config->font, "%s", view->name);
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}
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// header bottom line
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render_sharp_line(cr, colors->border,
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view->actual_geometry.origin.x - b->origin.x,
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tb->size.h - 1,
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view->actual_geometry.size.w, 1);
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}
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void map_update_view_border(swayc_t *view, void *data) {
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if (view->type == C_VIEW) {
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update_view_border(view);
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}
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}
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void update_view_border(swayc_t *view) {
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cairo_t *cr = NULL;
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cairo_surface_t *surface = NULL;
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if (view->border) {
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free(view->border);
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view->border = NULL;
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}
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swayc_t *focused = get_focused_view(&root_container);
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swayc_t *container = swayc_parent_by_type(view, C_CONTAINER);
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swayc_t *focused_inactive = NULL;
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if (container) {
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focused_inactive = swayc_focus_by_type(container, C_VIEW);
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} else {
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container = swayc_parent_by_type(view, C_WORKSPACE);
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if (container) {
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focused_inactive = swayc_focus_by_type(container, C_VIEW);
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}
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}
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switch (view->border_type) {
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case B_NONE:
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break;
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case B_PIXEL:
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cr = create_border_buffer(view, view->border_geometry, &surface);
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if (!cr) {
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break;
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}
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if (focused == view) {
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render_borders(view, cr, &config->border_colors.focused);
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} else if (focused_inactive == view) {
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render_borders(view, cr, &config->border_colors.focused_inactive);
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} else {
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render_borders(view, cr, &config->border_colors.unfocused);
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}
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break;
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case B_NORMAL:
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cr = create_border_buffer(view, view->border_geometry, &surface);
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if (!cr) {
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break;
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}
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if (focused == view) {
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render_with_title_bar(view, cr, &config->border_colors.focused);
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} else if (focused_inactive == view) {
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render_with_title_bar(view, cr, &config->border_colors.focused_inactive);
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} else {
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render_with_title_bar(view, cr, &config->border_colors.unfocused);
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}
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break;
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}
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if (surface) {
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cairo_surface_flush(surface);
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cairo_surface_destroy(surface);
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}
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if (cr) {
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cairo_destroy(cr);
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}
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}
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void render_view_borders(wlc_handle view) {
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swayc_t *c = swayc_by_handle(view);
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if (!c || c->border_type == B_NONE) {
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return;
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}
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if (c->border_type == B_NORMAL) {
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// update window title
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const char *new_name = wlc_view_get_title(view);
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if (new_name && strcmp(c->name, new_name) != 0) {
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free(c->name);
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c->name = strdup(new_name);
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update_view_border(c);
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}
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}
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if (c->border) {
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wlc_pixels_write(WLC_RGBA8888, &c->border_geometry, c->border);
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}
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}
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