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BasicLayout.c
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BasicLayout.c
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#include "structures.h"
#include "BasicLayout.h"
#include "general.h"
#include "theme.h"
#include "keys.h"
#include "widgets.h"
// Création
Widget *wBasicLayout(int displayBounds)
{
Widget *w = malloc(sizeof(Widget));
if (!w) return NULL;
w->type = WIDGET_BASIC_LAYOUT;
w->Hexpansive = 1;
w->Vexpansive = 1;
w->parent = NULL;
w->construct = NULL;
w->displayBounds = displayBounds;
w->background = NULL;
w->isDynamic = 0;
w->isLayout = 1;
w->callBack = NULL;
w->freeArgsType = 0;
w->bounds.w = 160;
w->bounds.h = 190;
w->bounds.x = (320-w->bounds.w)/2;
w->bounds.y = (240-w->bounds.h)/2;
w->draw = DrawBasicLayout;
w->activate = ActivateBasicLayout;
w->close = CloseBasicLayout;
w->add = AddBasicLayout;
w->customArgs = NULL;
w->freeCustomArgs = NULL;
w->args = malloc(sizeof(BasicLayoutArgs));
if (!w->args) {
free(w);
return NULL;
}
BasicLayoutArgs *args = w->args;
args->nWidgets = 0;
args->widgets = NULL;
args->cWidget = 0;
return w;
}
// Ajout de widgets-enfants
int AddBasicLayout(Widget *w, Widget *child, int spot)
{
if (!w || !child) return 0;
BasicLayoutArgs *args = w->args;
// on trouve le spot
if (spot != -1) {
if (spot < 0) return 0;
if (spot > args->nWidgets)
spot = args->nWidgets;
}
else
spot = args->nWidgets;
// on enregistre le widget
if (spot < args->nWidgets) {
wAddWidgetToConstruct(w->construct, args->widgets[spot]);
args->widgets[spot] = child;
}
else {
// on réalloue la mémoire
void *tmp = realloc(args->widgets, (args->nWidgets+1)*sizeof(Widget *));
if (!tmp) return 0;
args->widgets = tmp;
args->widgets[args->nWidgets++] = child;
}
return 1;
}
// Dessin
void DrawBasicLayout(Widget *w)
{
BasicLayoutArgs *args = w->args;
w->isDynamic = 0;
int x, nDynamics=0;
Widget *child = NULL;
SDL_Rect r = (SDL_Rect) {w->bounds.x + 3, w->bounds.y + 3, w->bounds.w - 6, w->bounds.h - 6};
// Calcul des coordonnées de chaque widget par rapport à l'autre
for (x=0; x < args->nWidgets; x++) {
child = args->widgets[x];
if (x) {
Widget *lChild = args->widgets[x-1];
r.y += lChild->bounds.h + 1;
r.h -= lChild->bounds.h + 1;
wFindBounds(child, &r, 1, 0);
}
else {
wFindBounds(child, &r, 1, 0);
}
// Si le widget dépasse, on continue
if (!wIsActivable(child))
continue;
// dessin-- la taille des bounds peut encore être modifiée ici
wDrawWidget(child);
if (child->isDynamic && w->construct->onlyOneDynamic && nDynamics < 2) {
nDynamics++;
if (nDynamics == 2) w->construct->onlyOneDynamic = 0;
}
w->isDynamic |= child->isDynamic;
}
}
// Activation
int ActivateBasicLayout(Widget *w)
{
BasicLayoutArgs *args = w->args;
if (!args->nWidgets || !args->widgets) return 0;
int ok;
int nWidget = args->cWidget;
if (K_DOWN()) nWidget = wFindNextWidget(args->widgets, args->nWidgets, ARROW_BOT, w->construct->previousWidgetBounds);
else if (K_UP()) nWidget = wFindNextWidget(args->widgets, args->nWidgets, ARROW_TOP, w->construct->previousWidgetBounds);
else if (K_RIGHT()) nWidget = wFindNextWidget(args->widgets, args->nWidgets, ARROW_RIGHT, w->construct->previousWidgetBounds);
else if (K_LEFT()) nWidget = wFindNextWidget(args->widgets, args->nWidgets, ARROW_LEFT, w->construct->previousWidgetBounds);
else if (K_TAB() || !args->widgets[nWidget]->isDynamic || !wIsActivable(args->widgets[nWidget])) {
nWidget = 0;
while (nWidget < args->nWidgets && (!args->widgets[nWidget]->isDynamic || !wIsActivable(args->widgets[nWidget])))
nWidget++;
if (nWidget == args->nWidgets) nWidget = -1;
}
do {
if (nWidget > -1 && nWidget < args->nWidgets) args->cWidget = nWidget;
ok = wActivateWidget(args->widgets[args->cWidget]);
if (ok < 2) return ok;
if (K_UP()) { // on regarde qui est le prochain widget
nWidget = wFindNextWidget(args->widgets, args->nWidgets, ARROW_TOP, w->construct->previousWidgetBounds);
if (nWidget == -1) break; // pas de prochain widget dans ce layout, on va voir s'il y en a un au-dessus
ok = 3;
}
else if (K_DOWN()) {
nWidget = wFindNextWidget(args->widgets, args->nWidgets, ARROW_BOT, w->construct->previousWidgetBounds);
if (nWidget == -1) break; // pas de prochain widget dans ce layout, on va voir s'il y en a un au-dessus
ok = 3;
}
else if (K_TAB()) {
nWidget = args->cWidget;
do {
++nWidget;
} while (nWidget < args->nWidgets && (!args->widgets[nWidget]->isDynamic || !wIsActivable(args->widgets[nWidget])));
if (nWidget == args->nWidgets) nWidget = -1;
if (nWidget == -1) break;
ok = 3;
}
} while (ok == 3);
return 2;
}
// Fermeture
void CloseBasicLayout(Widget *w)
{
if (!w) return;
BasicLayoutArgs *args = w->args;
if (args) {
int x;
if (args->widgets) {
for (x=0; x < args->nWidgets; x++)
wAddWidgetToConstruct(w->construct, args->widgets[x]);
free(args->widgets);
}
}
}