diff options
Diffstat (limited to 'source/blender/windowmanager/intern/wm_window.c')
| -rw-r--r-- | source/blender/windowmanager/intern/wm_window.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/source/blender/windowmanager/intern/wm_window.c b/source/blender/windowmanager/intern/wm_window.c index 02b50af0ac3..1ba22652157 100644 --- a/source/blender/windowmanager/intern/wm_window.c +++ b/source/blender/windowmanager/intern/wm_window.c @@ -1984,6 +1984,90 @@ bool wm_window_get_swap_interval(wmWindow *win, int *intervalOut) /** \} */ /* -------------------------------------------------------------------- */ +/** \name Find Window Utility + * + * \{ */ +static void wm_window_desktop_pos_get(const wmWindow *win, + const int screen_pos[2], + int r_desk_pos[2]) +{ + /* To desktop space. */ + r_desk_pos[0] = screen_pos[0] + (int)(U.pixelsize * win->posx); + r_desk_pos[1] = screen_pos[1] + (int)(U.pixelsize * win->posy); +} + +static void wm_window_screen_pos_get(const wmWindow *win, + const int desktop_pos[2], + int r_scr_pos[2]) +{ + /* To window space. */ + r_scr_pos[0] = desktop_pos[0] - (int)(U.pixelsize * win->posx); + r_scr_pos[1] = desktop_pos[1] - (int)(U.pixelsize * win->posy); +} + +bool WM_window_find_under_cursor(const wmWindowManager *wm, + const wmWindow *win_ignore, + const wmWindow *win, + const int mval[2], + wmWindow **r_win, + int r_mval[2]) +{ + int desk_pos[2]; + wm_window_desktop_pos_get(win, mval, desk_pos); + + /* TODO: This should follow the order of the activated windows. + * The current solution is imperfect but usable in most cases. */ + LISTBASE_FOREACH (wmWindow *, win_iter, &wm->windows) { + if (win_iter == win_ignore) { + continue; + } + + if (win_iter->windowstate == GHOST_kWindowStateMinimized) { + continue; + } + + int scr_pos[2]; + wm_window_screen_pos_get(win_iter, desk_pos, scr_pos); + + if (scr_pos[0] >= 0 && win_iter->posy >= 0 && scr_pos[0] <= WM_window_pixels_x(win_iter) && + scr_pos[1] <= WM_window_pixels_y(win_iter)) { + + *r_win = win_iter; + copy_v2_v2_int(r_mval, scr_pos); + return true; + } + } + + return false; +} + +void WM_window_pixel_sample_read(const wmWindowManager *wm, + const wmWindow *win, + const int pos[2], + float r_col[3]) +{ + bool setup_context = wm->windrawable != win; + + if (setup_context) { + GHOST_ActivateWindowDrawingContext(win->ghostwin); + GPU_context_active_set(win->gpuctx); + } + + glReadBuffer(GL_FRONT); + glReadPixels(pos[0], pos[1], 1, 1, GL_RGB, GL_FLOAT, r_col); + glReadBuffer(GL_BACK); + + if (setup_context) { + if (wm->windrawable) { + GHOST_ActivateWindowDrawingContext(wm->windrawable->ghostwin); + GPU_context_active_set(wm->windrawable->gpuctx); + } + } +} + +/** \} */ + +/* -------------------------------------------------------------------- */ /** \name Window Screen Shot Utility * * Include here since it can involve low level buffer switching. |