mirror of
https://gitlab.freedesktop.org/wayland/weston
synced 2024-09-06 09:56:14 +00:00
![Boyan Ding](/assets/img/avatar_default.png)
Previously geometry was changed to leave space for titlebar if a frame has only buttons but no title. This patch fixes theme_render_frame to avoid transparent titlebar. Signed-off-by: Boyan Ding <stu_dby@126.com>
541 lines
14 KiB
C
541 lines
14 KiB
C
/*
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* Copyright © 2008 Kristian Høgsberg
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* Copyright © 2012 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include "config.h"
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <math.h>
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#include <wayland-util.h>
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#include <cairo.h>
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#include "cairo-util.h"
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#include "image-loader.h"
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#include "config-parser.h"
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#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
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void
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surface_flush_device(cairo_surface_t *surface)
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{
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cairo_device_t *device;
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device = cairo_surface_get_device(surface);
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if (device)
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cairo_device_flush(device);
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}
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static int
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blur_surface(cairo_surface_t *surface, int margin)
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{
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int32_t width, height, stride, x, y, z, w;
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uint8_t *src, *dst;
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uint32_t *s, *d, a, p;
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int i, j, k, size, half;
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uint32_t kernel[71];
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double f;
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size = ARRAY_LENGTH(kernel);
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width = cairo_image_surface_get_width(surface);
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height = cairo_image_surface_get_height(surface);
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stride = cairo_image_surface_get_stride(surface);
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src = cairo_image_surface_get_data(surface);
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dst = malloc(height * stride);
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if (dst == NULL)
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return -1;
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half = size / 2;
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a = 0;
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for (i = 0; i < size; i++) {
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f = (i - half);
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kernel[i] = exp(- f * f / ARRAY_LENGTH(kernel)) * 10000;
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a += kernel[i];
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}
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for (i = 0; i < height; i++) {
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s = (uint32_t *) (src + i * stride);
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d = (uint32_t *) (dst + i * stride);
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for (j = 0; j < width; j++) {
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if (margin < j && j < width - margin) {
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d[j] = s[j];
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continue;
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}
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x = 0;
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y = 0;
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z = 0;
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w = 0;
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for (k = 0; k < size; k++) {
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if (j - half + k < 0 || j - half + k >= width)
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continue;
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p = s[j - half + k];
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x += (p >> 24) * kernel[k];
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y += ((p >> 16) & 0xff) * kernel[k];
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z += ((p >> 8) & 0xff) * kernel[k];
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w += (p & 0xff) * kernel[k];
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}
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d[j] = (x / a << 24) | (y / a << 16) | (z / a << 8) | w / a;
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}
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}
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for (i = 0; i < height; i++) {
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s = (uint32_t *) (dst + i * stride);
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d = (uint32_t *) (src + i * stride);
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for (j = 0; j < width; j++) {
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if (margin <= i && i < height - margin) {
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d[j] = s[j];
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continue;
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}
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x = 0;
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y = 0;
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z = 0;
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w = 0;
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for (k = 0; k < size; k++) {
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if (i - half + k < 0 || i - half + k >= height)
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continue;
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s = (uint32_t *) (dst + (i - half + k) * stride);
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p = s[j];
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x += (p >> 24) * kernel[k];
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y += ((p >> 16) & 0xff) * kernel[k];
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z += ((p >> 8) & 0xff) * kernel[k];
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w += (p & 0xff) * kernel[k];
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}
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d[j] = (x / a << 24) | (y / a << 16) | (z / a << 8) | w / a;
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}
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}
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free(dst);
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cairo_surface_mark_dirty(surface);
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return 0;
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}
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void
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tile_mask(cairo_t *cr, cairo_surface_t *surface,
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int x, int y, int width, int height, int margin, int top_margin)
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{
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cairo_pattern_t *pattern;
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cairo_matrix_t matrix;
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int i, fx, fy, vmargin;
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
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pattern = cairo_pattern_create_for_surface (surface);
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cairo_pattern_set_filter(pattern, CAIRO_FILTER_NEAREST);
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for (i = 0; i < 4; i++) {
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fx = i & 1;
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fy = i >> 1;
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cairo_matrix_init_translate(&matrix,
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-x + fx * (128 - width),
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-y + fy * (128 - height));
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cairo_pattern_set_matrix(pattern, &matrix);
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if (fy)
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vmargin = margin;
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else
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vmargin = top_margin;
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cairo_reset_clip(cr);
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cairo_rectangle(cr,
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x + fx * (width - margin),
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y + fy * (height - vmargin),
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margin, vmargin);
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cairo_clip (cr);
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cairo_mask(cr, pattern);
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}
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/* Top stretch */
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cairo_matrix_init_translate(&matrix, 60, 0);
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cairo_matrix_scale(&matrix, 8.0 / width, 1);
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cairo_matrix_translate(&matrix, -x - width / 2, -y);
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cairo_pattern_set_matrix(pattern, &matrix);
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cairo_rectangle(cr, x + margin, y, width - 2 * margin, margin);
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cairo_reset_clip(cr);
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cairo_rectangle(cr,
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x + margin,
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y,
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width - 2 * margin, margin);
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cairo_clip (cr);
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cairo_mask(cr, pattern);
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/* Bottom stretch */
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cairo_matrix_translate(&matrix, 0, -height + 128);
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cairo_pattern_set_matrix(pattern, &matrix);
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cairo_reset_clip(cr);
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cairo_rectangle(cr, x + margin, y + height - margin,
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width - 2 * margin, margin);
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cairo_clip (cr);
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cairo_mask(cr, pattern);
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/* Left stretch */
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cairo_matrix_init_translate(&matrix, 0, 60);
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cairo_matrix_scale(&matrix, 1, 8.0 / height);
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cairo_matrix_translate(&matrix, -x, -y - height / 2);
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cairo_pattern_set_matrix(pattern, &matrix);
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cairo_reset_clip(cr);
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cairo_rectangle(cr, x, y + margin, margin, height - 2 * margin);
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cairo_clip (cr);
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cairo_mask(cr, pattern);
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/* Right stretch */
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cairo_matrix_translate(&matrix, -width + 128, 0);
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cairo_pattern_set_matrix(pattern, &matrix);
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cairo_rectangle(cr, x + width - margin, y + margin,
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margin, height - 2 * margin);
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cairo_reset_clip(cr);
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cairo_clip (cr);
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cairo_mask(cr, pattern);
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cairo_pattern_destroy(pattern);
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cairo_reset_clip(cr);
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}
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void
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tile_source(cairo_t *cr, cairo_surface_t *surface,
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int x, int y, int width, int height, int margin, int top_margin)
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{
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cairo_pattern_t *pattern;
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cairo_matrix_t matrix;
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int i, fx, fy, vmargin;
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
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pattern = cairo_pattern_create_for_surface (surface);
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cairo_pattern_set_filter(pattern, CAIRO_FILTER_NEAREST);
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cairo_set_source(cr, pattern);
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cairo_pattern_destroy(pattern);
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for (i = 0; i < 4; i++) {
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fx = i & 1;
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fy = i >> 1;
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cairo_matrix_init_translate(&matrix,
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-x + fx * (128 - width),
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-y + fy * (128 - height));
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cairo_pattern_set_matrix(pattern, &matrix);
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if (fy)
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vmargin = margin;
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else
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vmargin = top_margin;
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cairo_rectangle(cr,
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x + fx * (width - margin),
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y + fy * (height - vmargin),
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margin, vmargin);
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cairo_fill(cr);
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}
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/* Top stretch */
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cairo_matrix_init_translate(&matrix, 60, 0);
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cairo_matrix_scale(&matrix, 8.0 / (width - 2 * margin), 1);
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cairo_matrix_translate(&matrix, -x - width / 2, -y);
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cairo_pattern_set_matrix(pattern, &matrix);
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cairo_rectangle(cr, x + margin, y, width - 2 * margin, top_margin);
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cairo_fill(cr);
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/* Bottom stretch */
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cairo_matrix_translate(&matrix, 0, -height + 128);
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cairo_pattern_set_matrix(pattern, &matrix);
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cairo_rectangle(cr, x + margin, y + height - margin,
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width - 2 * margin, margin);
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cairo_fill(cr);
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/* Left stretch */
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cairo_matrix_init_translate(&matrix, 0, 60);
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cairo_matrix_scale(&matrix, 1, 8.0 / (height - margin - top_margin));
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cairo_matrix_translate(&matrix, -x, -y - height / 2);
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cairo_pattern_set_matrix(pattern, &matrix);
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cairo_rectangle(cr, x, y + top_margin,
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margin, height - margin - top_margin);
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cairo_fill(cr);
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/* Right stretch */
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cairo_matrix_translate(&matrix, -width + 128, 0);
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cairo_pattern_set_matrix(pattern, &matrix);
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cairo_rectangle(cr, x + width - margin, y + top_margin,
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margin, height - margin - top_margin);
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cairo_fill(cr);
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}
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void
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rounded_rect(cairo_t *cr, int x0, int y0, int x1, int y1, int radius)
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{
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cairo_move_to(cr, x0, y0 + radius);
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cairo_arc(cr, x0 + radius, y0 + radius, radius, M_PI, 3 * M_PI / 2);
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cairo_line_to(cr, x1 - radius, y0);
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cairo_arc(cr, x1 - radius, y0 + radius, radius, 3 * M_PI / 2, 2 * M_PI);
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cairo_line_to(cr, x1, y1 - radius);
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cairo_arc(cr, x1 - radius, y1 - radius, radius, 0, M_PI / 2);
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cairo_line_to(cr, x0 + radius, y1);
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cairo_arc(cr, x0 + radius, y1 - radius, radius, M_PI / 2, M_PI);
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cairo_close_path(cr);
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}
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cairo_surface_t *
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load_cairo_surface(const char *filename)
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{
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pixman_image_t *image;
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int width, height, stride;
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void *data;
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image = load_image(filename);
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if (image == NULL) {
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return NULL;
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}
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data = pixman_image_get_data(image);
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width = pixman_image_get_width(image);
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height = pixman_image_get_height(image);
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stride = pixman_image_get_stride(image);
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return cairo_image_surface_create_for_data(data, CAIRO_FORMAT_ARGB32,
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width, height, stride);
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}
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void
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theme_set_background_source(struct theme *t, cairo_t *cr, uint32_t flags)
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{
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cairo_pattern_t *pattern;
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if (flags & THEME_FRAME_ACTIVE) {
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pattern = cairo_pattern_create_linear(16, 16, 16, 112);
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cairo_pattern_add_color_stop_rgb(pattern, 0.0, 1.0, 1.0, 1.0);
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cairo_pattern_add_color_stop_rgb(pattern, 0.2, 0.8, 0.8, 0.8);
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cairo_set_source(cr, pattern);
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cairo_pattern_destroy(pattern);
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} else {
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cairo_set_source_rgba(cr, 0.75, 0.75, 0.75, 1);
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}
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}
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struct theme *
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theme_create(void)
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{
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struct theme *t;
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cairo_t *cr;
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t = malloc(sizeof *t);
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if (t == NULL)
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return NULL;
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t->margin = 32;
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t->width = 6;
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t->titlebar_height = 27;
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t->frame_radius = 3;
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t->shadow = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 128, 128);
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cr = cairo_create(t->shadow);
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
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cairo_set_source_rgba(cr, 0, 0, 0, 1);
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rounded_rect(cr, 32, 32, 96, 96, t->frame_radius);
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cairo_fill(cr);
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if (cairo_status (cr) != CAIRO_STATUS_SUCCESS)
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goto err_shadow;
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cairo_destroy(cr);
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if (blur_surface(t->shadow, 64) == -1)
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goto err_shadow;
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t->active_frame =
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cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 128, 128);
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cr = cairo_create(t->active_frame);
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
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theme_set_background_source(t, cr, THEME_FRAME_ACTIVE);
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rounded_rect(cr, 0, 0, 128, 128, t->frame_radius);
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cairo_fill(cr);
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if (cairo_status(cr) != CAIRO_STATUS_SUCCESS)
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goto err_active_frame;
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cairo_destroy(cr);
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t->inactive_frame =
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cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 128, 128);
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cr = cairo_create(t->inactive_frame);
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
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theme_set_background_source(t, cr, 0);
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rounded_rect(cr, 0, 0, 128, 128, t->frame_radius);
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cairo_fill(cr);
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if (cairo_status (cr) != CAIRO_STATUS_SUCCESS)
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goto err_inactive_frame;
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cairo_destroy(cr);
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return t;
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err_inactive_frame:
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cairo_surface_destroy(t->inactive_frame);
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err_active_frame:
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cairo_surface_destroy(t->active_frame);
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err_shadow:
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cairo_surface_destroy(t->shadow);
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free(t);
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return NULL;
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}
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void
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theme_destroy(struct theme *t)
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{
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cairo_surface_destroy(t->active_frame);
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cairo_surface_destroy(t->inactive_frame);
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cairo_surface_destroy(t->shadow);
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free(t);
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}
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void
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theme_render_frame(struct theme *t,
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cairo_t *cr, int width, int height,
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const char *title, struct wl_list *buttons,
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uint32_t flags)
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{
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cairo_text_extents_t extents;
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cairo_font_extents_t font_extents;
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cairo_surface_t *source;
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int x, y, margin, top_margin;
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cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
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cairo_set_source_rgba(cr, 0, 0, 0, 0);
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cairo_paint(cr);
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if (flags & THEME_FRAME_MAXIMIZED)
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margin = 0;
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else {
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cairo_set_source_rgba(cr, 0, 0, 0, 0.45);
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tile_mask(cr, t->shadow,
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2, 2, width + 8, height + 8,
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64, 64);
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margin = t->margin;
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}
|
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|
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if (flags & THEME_FRAME_ACTIVE)
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source = t->active_frame;
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else
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source = t->inactive_frame;
|
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if (title || !wl_list_empty(buttons))
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top_margin = t->titlebar_height;
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else
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top_margin = t->width;
|
|
|
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tile_source(cr, source,
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margin, margin,
|
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width - margin * 2, height - margin * 2,
|
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t->width, top_margin);
|
|
|
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if (title || !wl_list_empty(buttons)) {
|
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cairo_rectangle (cr, margin + t->width, margin,
|
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width - (margin + t->width) * 2,
|
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t->titlebar_height - t->width);
|
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cairo_clip(cr);
|
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|
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
|
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cairo_select_font_face(cr, "sans",
|
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CAIRO_FONT_SLANT_NORMAL,
|
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CAIRO_FONT_WEIGHT_BOLD);
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cairo_set_font_size(cr, 14);
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cairo_text_extents(cr, title, &extents);
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cairo_font_extents (cr, &font_extents);
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x = (width - extents.width) / 2;
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y = margin +
|
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(t->titlebar_height -
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font_extents.ascent - font_extents.descent) / 2 +
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font_extents.ascent;
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|
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if (flags & THEME_FRAME_ACTIVE) {
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cairo_move_to(cr, x + 1, y + 1);
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cairo_set_source_rgb(cr, 1, 1, 1);
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cairo_show_text(cr, title);
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cairo_move_to(cr, x, y);
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cairo_set_source_rgb(cr, 0, 0, 0);
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cairo_show_text(cr, title);
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} else {
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cairo_move_to(cr, x, y);
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cairo_set_source_rgb(cr, 0.4, 0.4, 0.4);
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cairo_show_text(cr, title);
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|
}
|
|
}
|
|
}
|
|
|
|
enum theme_location
|
|
theme_get_location(struct theme *t, int x, int y,
|
|
int width, int height, int flags)
|
|
{
|
|
int vlocation, hlocation, location;
|
|
int margin, top_margin, grip_size;
|
|
|
|
if (flags & THEME_FRAME_MAXIMIZED) {
|
|
margin = 0;
|
|
grip_size = 0;
|
|
} else {
|
|
margin = t->margin;
|
|
grip_size = 8;
|
|
}
|
|
|
|
if (flags & THEME_FRAME_NO_TITLE)
|
|
top_margin = t->width;
|
|
else
|
|
top_margin = t->titlebar_height;
|
|
|
|
if (x < margin)
|
|
hlocation = THEME_LOCATION_EXTERIOR;
|
|
else if (x < margin + grip_size)
|
|
hlocation = THEME_LOCATION_RESIZING_LEFT;
|
|
else if (x < width - margin - grip_size)
|
|
hlocation = THEME_LOCATION_INTERIOR;
|
|
else if (x < width - margin)
|
|
hlocation = THEME_LOCATION_RESIZING_RIGHT;
|
|
else
|
|
hlocation = THEME_LOCATION_EXTERIOR;
|
|
|
|
if (y < margin)
|
|
vlocation = THEME_LOCATION_EXTERIOR;
|
|
else if (y < margin + grip_size)
|
|
vlocation = THEME_LOCATION_RESIZING_TOP;
|
|
else if (y < height - margin - grip_size)
|
|
vlocation = THEME_LOCATION_INTERIOR;
|
|
else if (y < height - margin)
|
|
vlocation = THEME_LOCATION_RESIZING_BOTTOM;
|
|
else
|
|
vlocation = THEME_LOCATION_EXTERIOR;
|
|
|
|
location = vlocation | hlocation;
|
|
if (location & THEME_LOCATION_EXTERIOR)
|
|
location = THEME_LOCATION_EXTERIOR;
|
|
if (location == THEME_LOCATION_INTERIOR &&
|
|
y < margin + top_margin)
|
|
location = THEME_LOCATION_TITLEBAR;
|
|
else if (location == THEME_LOCATION_INTERIOR)
|
|
location = THEME_LOCATION_CLIENT_AREA;
|
|
|
|
return location;
|
|
}
|