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#include "deco-theme.hpp"
#include <wayfire/core.hpp>
#include <wayfire/opengl.hpp>
#include <config.h>
namespace wf
{
namespace decor
{
/** Create a new theme with the default parameters */
decoration_theme_t::decoration_theme_t()
{}
/** @return The available height for displaying the title */
int decoration_theme_t::get_title_height() const
{
return title_height;
}
/** @return The available border for resizing */
int decoration_theme_t::get_border_size() const
{
return border_size;
}
/** @return The available border for resizing */
void decoration_theme_t::set_buttons(button_type_t flags)
{
button_flags = flags;
}
/**
* Fill the given rectangle with the background color(s).
*
* @param fb The target framebuffer, must have been bound already
* @param rectangle The rectangle to redraw.
* @param scissor The GL scissor rectangle to use.
* @param active Whether to use active or inactive colors
*/
void decoration_theme_t::render_background(const wf::scene::render_instruction_t& data,
wf::geometry_t rectangle, bool active) const
{
wf::color_t color = active ? active_color : inactive_color;
data.pass->add_rect(color, data.target, rectangle, data.damage);
}
/**
* Render the given text on a cairo_surface_t with the given size.
* The caller is responsible for freeing the memory afterwards.
*/
cairo_surface_t*decoration_theme_t::render_text(std::string text,
int width, int height) const
{
const auto format = CAIRO_FORMAT_ARGB32;
auto surface = cairo_image_surface_create(format, width, height);
if (height == 0)
{
return surface;
}
wf::color_t color = font_color;
auto cr = cairo_create(surface);
const float font_scale = 0.8;
const float font_size = height * font_scale;
PangoFontDescription *font_desc;
PangoLayout *layout;
// render text
font_desc = pango_font_description_from_string(((std::string)font).c_str());
pango_font_description_set_absolute_size(font_desc, font_size * PANGO_SCALE);
layout = pango_cairo_create_layout(cr);
pango_layout_set_font_description(layout, font_desc);
pango_layout_set_text(layout, text.c_str(), text.size());
cairo_set_source_rgba(cr, color.r, color.g, color.b, color.a);
pango_cairo_show_layout(cr, layout);
pango_font_description_free(font_desc);
g_object_unref(layout);
cairo_destroy(cr);
return surface;
}
cairo_surface_t*decoration_theme_t::get_button_surface(button_type_t button,
const button_state_t& state) const
{
cairo_surface_t *button_surface = cairo_image_surface_create(
CAIRO_FORMAT_ARGB32, state.width, state.height);
auto cr = cairo_create(button_surface);
cairo_set_antialias(cr, CAIRO_ANTIALIAS_BEST);
/* Clear the button background */
cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR);
cairo_set_source_rgba(cr, 0, 0, 0, 0);
cairo_rectangle(cr, 0, 0, state.width, state.height);
cairo_fill(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
/** A gray that looks good on light and dark themes */
color_t base = {0.60, 0.60, 0.63, 0.36};
/**
* We just need the alpha component.
* r == g == b == 0.0 will be directly set
*/
double line = 0.27;
double hover = 0.27;
/** Coloured base on hover/press. Don't compare float to 0 */
if (fabs(state.hover_progress) > 1e-3)
{
switch (button)
{
case BUTTON_CLOSE:
base = {242.0 / 255.0, 80.0 / 255.0, 86.0 / 255.0, 0.63};
break;
case BUTTON_TOGGLE_MAXIMIZE:
base = {57.0 / 255.0, 234.0 / 255.0, 73.0 / 255.0, 0.63};
break;
case BUTTON_MINIMIZE:
base = {250.0 / 255.0, 198.0 / 255.0, 54.0 / 255.0, 0.63};
break;
default:
assert(false);
}
line *= 2.0;
}
/** Draw the base */
cairo_set_source_rgba(cr,
base.r + 0.0 * state.hover_progress,
base.g + 0.0 * state.hover_progress,
base.b + 0.0 * state.hover_progress,
base.a + hover * state.hover_progress);
cairo_arc(cr, state.width / 2, state.height / 2,
state.width / 2, 0, 2 * M_PI);
cairo_fill(cr);
/** Draw the border */
cairo_set_line_width(cr, state.border);
cairo_set_source_rgba(cr, 0.00, 0.00, 0.00, line);
// This renders great on my screen (110 dpi 1376x768 lcd screen)
// How this would appear on a Hi-DPI screen is questionable
double r = state.width / 2 - 0.5 * state.border;
cairo_arc(cr, state.width / 2, state.height / 2, r, 0, 2 * M_PI);
cairo_stroke(cr);
/** Draw the icon */
cairo_set_source_rgba(cr, 0.00, 0.00, 0.00, line / 2);
cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);
switch (button)
{
case BUTTON_CLOSE:
cairo_set_line_width(cr, 1.5 * state.border);
cairo_move_to(cr, 1.0 * state.width / 4.0,
1.0 * state.height / 4.0);
cairo_line_to(cr, 3.0 * state.width / 4.0,
3.0 * state.height / 4.0); // '\' part of x
cairo_move_to(cr, 3.0 * state.width / 4.0,
1.0 * state.height / 4.0);
cairo_line_to(cr, 1.0 * state.width / 4.0,
3.0 * state.height / 4.0); // '/' part of x
cairo_stroke(cr);
break;
case BUTTON_TOGGLE_MAXIMIZE:
cairo_set_line_width(cr, 1.5 * state.border);
cairo_rectangle(
cr, // Context
state.width / 4.0, state.height / 4.0, // (x, y)
state.width / 2.0, state.height / 2.0 // w x h
);
cairo_stroke(cr);
break;
case BUTTON_MINIMIZE:
cairo_set_line_width(cr, 1.75 * state.border);
cairo_move_to(cr, 1.0 * state.width / 4.0,
state.height / 2.0);
cairo_line_to(cr, 3.0 * state.width / 4.0,
state.height / 2.0);
cairo_stroke(cr);
break;
default:
assert(false);
}
cairo_fill(cr);
cairo_destroy(cr);
return button_surface;
}
}
}
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