void Abstract::doGuardFinalize()
{
if (pArea && pArea->background == gfx->glfond)
pArea->background = 0;
doFinalize();
reset_keyboard();
clear_keybuf();
reset_mouse();
}
bool Abstract::doGuardInitialize()
{
pMouseX = -1;
pMouseY = -1;
pMouseZ = -1;
pMouseB = -1;
cursor_type = CURSOR_DEFAULT;
reset_keyboard();
reset_mouse();
clear_keybuf();
bool r = doInitialize();
return r;
}
void start_freehand_drawing(void)
{
FreehandGeometry geometry;
int oldmouse_x, oldmouse_y;
int offsetx = cxoff + canvas->get_absxpos();
int offsety = cyoff + canvas->get_absypos();
//SDL_Surface *sur = canvas->get_image(canvas->get_active_image_n());
SDL_Surface *behind = SDLGui::createSurface(screen->w, screen->h);
blit(screen, behind, 0, 0, 0, 0, screen->w, screen->h);
SDL_Event event;
oldmouse_x = mouse.x;
oldmouse_y = mouse.y;
unsigned processed = 0;
StlStroke& stroke = *(geometry.currStroke);
while(mouse.b == SDL_BUTTON_LEFT)
{
// Update the screen with the last round of geometry read from the
// event queue.
SDL_PumpEvents();
for (unsigned i = processed; i < stroke.size(); i++)
{
if (i == 0)
{
//putpixel(screen, stroke[i].x + offsetx,
// stroke[i].y + offsety, BLACK);
continue;
}
aalineRGBA(screen, (int) stroke[i - 1].x + offsetx,
(int) stroke[i - 1].y + offsety,
(int) stroke[i].x + offsetx,
(int) stroke[i].y + offsety, 0, 0, 0, 128);
processed++;
}
SDL_PumpEvents();
SDL_Flip(screen);
// Wait for a new event.
SDL_WaitEvent(&event);
// Process all events in the queue.
do
{
switch (event.type)
{
case SDL_MOUSEMOTION:
mouse.x = event.motion.x;
mouse.y = event.motion.y;
if ((oldmouse_x != mouse.x) || (oldmouse_y != mouse.y))
{
geometry.addPoint(mouse.x - offsetx, mouse.y - offsety);
oldmouse_x = mouse.x;
oldmouse_y = mouse.y;
}
break;
case SDL_MOUSEBUTTONUP:
mouse.b = 0;
break;
case SDL_QUIT:
mouse.kill_sig = 1;
break;
default:
break;
}
}
while ((mouse.b != 0) && SDL_PollEvent(&event));
}
//qDebug("Points: %d", (int) points.size());
SDL_FastBlit(behind, screen, 0, 0, 0, 0, screen->w, screen->h);
SDL_FreeSurface(behind);
if (lastFreehand == NULL)
{
strokeTimerID = SDL_AddTimer(strokeTimeout, freehand_timer_callback,
NULL);
lastFreehand = new Freehand(geometry);
// Visibility graph stuff:
visalgo->obj_add(lastFreehand);
//QT canvas_deselect_shapes();
}
else
{
SDL_RemoveTimer(strokeTimerID);
strokeTimerID = SDL_AddTimer(strokeTimeout, freehand_timer_callback,
NULL);
lastFreehand->addStroke(geometry);
visalgo->obj_resize(lastFreehand);
}
#if defined(__APPLE__)
// After using carbon for mouse input, we need to resync the sdl mouse.
GUI_DummyMouseEvent();
while(SDL_PollEvent(&event));
// noop;
reset_mouse();
mouse.bstate = mouse.b = 0;
#endif
repaint_canvas();
}
