window borders

1 files changed, 78 insertions, 0 deletions

diff --git a/applications/goldman/source/window.cpp b/applications/goldman/source/window.cpp
new file mode 100644
index 0000000..fe5212a
--- /dev/null
+++ b/applications/goldman/source/window.cpp
@@ -0,0 +1,78 @@
+#include <daguerre/psf.hpp>
+#include "renderer.hpp"
+#include "window.hpp"
+#include <cassert>
+
+//TODO: make these statically intialized once that is implemented
+bool have_initialized_decoration_stuff;
+daguerre::fixed_font<bool> *title_font;
+daguerre::hilbert_color border_color_top;
+daguerre::hilbert_color border_color_not_top;
+daguerre::hilbert_color title_color;
+
+void window::set_size(int width, int height) {
+  contents_with_decorations =
+    daguerre::image<daguerre::hilbert_color>(width + 4, height + 18);
+  contents = daguerre::image<daguerre::hilbert_color>(
+    width, height,
+    &contents_with_decorations.at(2, 16),
+    contents_with_decorations.buffer_pitch, false);
+}
+
+void title_converter(
+  daguerre::hilbert_color &out, const bool &in, const bool &top) {
+  out = in ? title_color : top ? border_color_top : border_color_not_top;
+}
+
+void window::draw_decorations(bool top) {
+
+  //TODO: handle error loading font.
+  //see also comment on title_font declaration.
+  if (!have_initialized_decoration_stuff) {
+    title_font = new daguerre::fixed_font<bool>(
+      *daguerre::try_load_psf("/assets/terminus/6x12.psf"));
+    assert(title_font->glyph_height == 12);
+    border_color_top     = euler::syscall::encode_color(0x00, 0x3f, 0xff);
+    border_color_not_top = euler::syscall::encode_color(0x22, 0x22, 0x22);
+    title_color          = euler::syscall::encode_color(0xff, 0xff, 0xff);
+    have_initialized_decoration_stuff = true;
+  }
+
+  static_assert( decorations_extra_width ==  4);
+  static_assert(decorations_extra_height == 18);
+
+  auto border_color = top ? border_color_top : border_color_not_top;
+
+  contents_with_decorations.fill(border_color, 0, 0,
+    contents_with_decorations.width, 16);
+  contents_with_decorations.fill(
+    border_color, 0, contents_with_decorations.height - 2,
+    contents_with_decorations.width, 2);
+  contents_with_decorations.fill(border_color, 0, 16,
+    2, contents_with_decorations.height - 18);
+  contents_with_decorations.fill(border_color,
+    contents_with_decorations.width - 2, 16,
+    2, contents_with_decorations.height - 18);
+
+  //TODO: make UTF-8--safe
+  unsigned max_title_length =
+    contents_with_decorations.width / title_font->glyph_width;
+  std::string *title_to_draw;
+  std::string shortened_title;
+  if (title.size() > max_title_length) {
+    shortened_title.resize(max_title_length - 3);
+    memcpy(shortened_title.data(), title.data(), max_title_length - 3);
+    shortened_title[max_title_length - 3] = '.';
+    shortened_title[max_title_length - 2] = '.';
+    shortened_title[max_title_length - 1] = '.';
+    title_to_draw = &shortened_title;
+  }
+  else
+    title_to_draw = &title;
+
+  contents_with_decorations.render_text(*title_font, top,
+    contents_with_decorations.width / 2 -
+      (title_to_draw->size() * title_font->glyph_width) / 2,
+    2, title_to_draw->data(), title_converter);
+
+}