#include #include "gx_api.h" #include "all_widgets_5_4_2_resources.h" #include "all_widgets_5_4_2_specifications.h" extern VOID rotate_memory_free(VOID *mem); INT rotate_angle = 30; INT rotate_pixelmap_id = GX_PIXELMAP_ID_ROTATE_FOOT; GX_BOOL canvas_rotate = GX_FALSE; VOID update_angle_prompt() { GX_PROMPT *pp; static GX_CHAR text[10]; gx_widget_find((GX_WIDGET *)&rotate_screen, ID_ANGLE_DISPLAY, 0, &pp); if (pp) { gx_utility_ltoa(rotate_angle, text, 10); gx_prompt_text_set(pp, text); } } UINT rotate_event_handler(GX_WINDOW *window, GX_EVENT *myevent) { UINT status = 0; switch (myevent->gx_event_type) { case GX_SIGNAL(ID_SLIDER_ANGLE, GX_EVENT_SLIDER_VALUE): rotate_angle = myevent->gx_event_payload.gx_event_longdata; update_angle_prompt(); gx_system_dirty_mark((GX_WIDGET *)&rotate_screen.rotate_screen_pixelmap_window); break; case GX_SIGNAL(ID_RADIO_FOOT, GX_EVENT_RADIO_SELECT): rotate_pixelmap_id = GX_PIXELMAP_ID_ROTATE_FOOT; gx_system_dirty_mark((GX_WIDGET *)&rotate_screen.rotate_screen_pixelmap_window); break; case GX_SIGNAL(ID_RADIO_APPLE, GX_EVENT_RADIO_SELECT): rotate_pixelmap_id = GX_PIXELMAP_ID_ROTATE_APPLE; gx_system_dirty_mark((GX_WIDGET *)&rotate_screen.rotate_screen_pixelmap_window); break; case GX_SIGNAL(ID_RADIO_FISH, GX_EVENT_RADIO_SELECT): rotate_pixelmap_id = GX_PIXELMAP_ID_ROTATE_FISH; gx_system_dirty_mark((GX_WIDGET *)&rotate_screen.rotate_screen_pixelmap_window); break; case GX_SIGNAL(ID_DIRECT_ROTATE, GX_EVENT_TOGGLE_ON): canvas_rotate = GX_TRUE; gx_system_dirty_mark((GX_WIDGET *)&rotate_screen.rotate_screen_pixelmap_window); break; case GX_SIGNAL(ID_DIRECT_ROTATE, GX_EVENT_TOGGLE_OFF): canvas_rotate = GX_FALSE; gx_system_dirty_mark((GX_WIDGET *)&rotate_screen.rotate_screen_pixelmap_window); break; default: return gx_window_event_process(window, myevent); break; } return status; } VOID pixelmap_draw(GX_WINDOW *window) { INT xpos; INT ypos; GX_PIXELMAP *pixelmap; GX_RECTANGLE win_size; GX_PIXELMAP destination; INT x_axis_old; INT y_axis_old; INT x_axis; INT y_axis; gx_window_draw((GX_WINDOW*)window); gx_context_pixelmap_get(rotate_pixelmap_id, &pixelmap); win_size = rotate_screen.rotate_screen_pixelmap_window.gx_widget_size; xpos = (win_size.gx_rectangle_right + win_size.gx_rectangle_left - pixelmap->gx_pixelmap_width) >> 1; ypos = (win_size.gx_rectangle_top + win_size.gx_rectangle_bottom - pixelmap->gx_pixelmap_height) >> 1; if (canvas_rotate) { if ((rotate_angle % 360) > 180) { x_axis = (pixelmap->gx_pixelmap_width >> 1); y_axis = (pixelmap->gx_pixelmap_height >> 1); } else { x_axis = -1; y_axis = -1; } gx_canvas_pixelmap_rotate(xpos, ypos, pixelmap, rotate_angle, x_axis, y_axis); } else { x_axis_old = (pixelmap->gx_pixelmap_width >> 1); y_axis_old = (pixelmap->gx_pixelmap_height >> 1); x_axis = x_axis_old; y_axis = y_axis_old; if (gx_utility_pixelmap_rotate(pixelmap, rotate_angle, &destination, &x_axis, &y_axis) == GX_SUCCESS) { xpos += x_axis_old - x_axis; ypos += y_axis_old - y_axis; /* Draw rotated pixelmap. */ gx_canvas_pixelmap_draw(xpos, ypos, &destination); /* free memory of the rotated pixelmap */ if (destination.gx_pixelmap_data) { rotate_memory_free((VOID *)destination.gx_pixelmap_data); } if (destination.gx_pixelmap_aux_data) { rotate_memory_free((VOID *)destination.gx_pixelmap_aux_data); } } else { gx_canvas_pixelmap_draw(xpos, ypos, pixelmap); } } }