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#7785 - 3D view tooltip position as a function of mouse cursor size on Windows

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This commit is contained in:
enricoturri1966 2022-01-24 14:24:10 +01:00
parent 7d45da065a
commit 12763c0a53
1 changed files with 35 additions and 2 deletions
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37
src/slic3r/GUI/GLCanvas3D.cpp
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@ -817,9 +817,42 @@ void GLCanvas3D::Tooltip::render(const Vec2d& mouse_position, GLCanvas3D& canvas
static ImVec2 size(0.0f, 0.0f);
auto validate_position = [](const Vec2d& position, const GLCanvas3D& canvas, const ImVec2& wnd_size) {
auto calc_cursor_height = []() {
float ret = 16.0f;
#ifdef _WIN32
// see: https://forums.codeguru.com/showthread.php?449040-get-the-system-current-cursor-size
// this code is not perfect because it returns a maximum height equal to 31 even if the cursor bitmap shown on screen is bigger
// but at least it gives the same result as wxWidgets in the settings tabs
ICONINFO ii;
if (::GetIconInfo((HICON)GetCursor(), &ii) != 0) {
BITMAP bitmap;
::GetObject(ii.hbmMask, sizeof(BITMAP), &bitmap);
int width = bitmap.bmWidth;
int height = (ii.hbmColor == nullptr) ? bitmap.bmHeight / 2 : bitmap.bmHeight;
HDC dc = ::CreateCompatibleDC(nullptr);
if (dc != nullptr) {
if (::SelectObject(dc, ii.hbmMask) != nullptr) {
for (int i = 0; i < width; ++i) {
for (int j = 0; j < height; ++j) {
if (::GetPixel(dc, i, j) != RGB(255, 255, 255)) {
if (ret < float(j))
ret = float(j);
}
}
}
::DeleteDC(dc);
}
}
::DeleteObject(ii.hbmColor);
::DeleteObject(ii.hbmMask);
}
#endif // _WIN32
return ret;
};
const Size cnv_size = canvas.get_canvas_size();
const float x = std::clamp((float)position.x(), 0.0f, (float)cnv_size.get_width() - wnd_size.x);
const float y = std::clamp((float)position.y() + 16.0f, 0.0f, (float)cnv_size.get_height() - wnd_size.y);
const float x = std::clamp(float(position.x()), 0.0f, float(cnv_size.get_width()) - wnd_size.x);
const float y = std::clamp(float(position.y()) + calc_cursor_height(), 0.0f, float(cnv_size.get_height()) - wnd_size.y);
return Vec2f(x, y);
};