void columns_add(Columns *cols, GtkWidget *child, gint colstart, gint colspan) { ColumnsChild *childdata; g_return_if_fail(cols != NULL); g_return_if_fail(IS_COLUMNS(cols)); g_return_if_fail(child != NULL); g_return_if_fail(child->parent == NULL); childdata = g_new(ColumnsChild, 1); childdata->widget = child; childdata->colstart = colstart; childdata->colspan = colspan; childdata->force_left = FALSE; cols->children = g_list_append(cols->children, childdata); cols->taborder = g_list_append(cols->taborder, child); gtk_widget_set_parent(child, GTK_WIDGET(cols)); if (GTK_WIDGET_REALIZED(cols)) gtk_widget_realize(child); if (GTK_WIDGET_VISIBLE(cols) && GTK_WIDGET_VISIBLE(child)) { if (GTK_WIDGET_MAPPED(cols)) gtk_widget_map(child); gtk_widget_queue_resize(child); } }
static gint columns_expose(GtkWidget *widget, GdkEventExpose *event) { Columns *cols; ColumnsChild *child; GList *children; GdkEventExpose child_event; g_return_val_if_fail(widget != NULL, FALSE); g_return_val_if_fail(IS_COLUMNS(widget), FALSE); g_return_val_if_fail(event != NULL, FALSE); if (GTK_WIDGET_DRAWABLE(widget)) { cols = COLUMNS(widget); child_event = *event; for (children = cols->children; children && (child = children->data); children = children->next) { if (child->widget && GTK_WIDGET_DRAWABLE(child->widget) && GTK_WIDGET_NO_WINDOW(child->widget) && gtk_widget_intersect(child->widget, &event->area, &child_event.area)) gtk_widget_event(child->widget, (GdkEvent *)&child_event); } } return FALSE; }
static void columns_forall(GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) { Columns *cols; ColumnsChild *child; GList *children, *next; g_return_if_fail(container != NULL); g_return_if_fail(IS_COLUMNS(container)); g_return_if_fail(callback != NULL); cols = COLUMNS(container); for (children = cols->children; children && (child = children->data); children = next) { /* * We can't wait until after the callback to assign * `children = children->next', because the callback might * be gtk_widget_destroy, which would remove the link * `children' from the list! So instead we must get our * hands on the value of the `next' pointer _before_ the * callback. */ next = children->next; if (child->widget) callback(child->widget, callback_data); } }
void columns_add(Columns *cols, GtkWidget *child, gint colstart, gint colspan) { ColumnsChild *childdata; g_return_if_fail(cols != NULL); g_return_if_fail(IS_COLUMNS(cols)); g_return_if_fail(child != NULL); g_return_if_fail(gtk_widget_get_parent(child) == NULL); childdata = g_new(ColumnsChild, 1); childdata->widget = child; childdata->colstart = colstart; childdata->colspan = colspan; childdata->force_left = FALSE; childdata->same_height_as = NULL; cols->children = g_list_append(cols->children, childdata); cols->taborder = g_list_append(cols->taborder, child); gtk_widget_set_parent(child, GTK_WIDGET(cols)); #if GTK_CHECK_VERSION(2, 0, 0) gtk_container_set_focus_chain(GTK_CONTAINER(cols), cols->taborder); #endif if (gtk_widget_get_realized(GTK_WIDGET(cols))) gtk_widget_realize(child); if (gtk_widget_get_visible(GTK_WIDGET(cols)) && gtk_widget_get_visible(child)) { if (gtk_widget_get_mapped(GTK_WIDGET(cols))) gtk_widget_map(child); gtk_widget_queue_resize(child); } }
static void columns_size_allocate(GtkWidget *widget, GtkAllocation *alloc) { Columns *cols; ColumnsChild *child; GList *children; gint border; g_return_if_fail(widget != NULL); g_return_if_fail(IS_COLUMNS(widget)); g_return_if_fail(alloc != NULL); cols = COLUMNS(widget); gtk_widget_set_allocation(widget, alloc); border = gtk_container_get_border_width(GTK_CONTAINER(cols)); columns_alloc_horiz(cols, alloc->width, columns_gtk2_get_width); columns_alloc_vert(cols, alloc->height, columns_gtk2_get_height); for (children = cols->children; children && (child = children->data); children = children->next) { if (child->widget && gtk_widget_get_visible(child->widget)) { GtkAllocation call; call.x = alloc->x + border + child->x; call.y = alloc->y + border + child->y; call.width = child->w; call.height = child->h; gtk_widget_size_allocate(child->widget, &call); } } }
/* * Override GtkContainer's focus movement so the user can * explicitly specify the tab order. */ static gint columns_focus(GtkContainer *container, GtkDirectionType dir) { Columns *cols; GList *pos; GtkWidget *focuschild; g_return_val_if_fail(container != NULL, FALSE); g_return_val_if_fail(IS_COLUMNS(container), FALSE); cols = COLUMNS(container); if (!GTK_WIDGET_DRAWABLE(cols) || !GTK_WIDGET_IS_SENSITIVE(cols)) return FALSE; if (!GTK_WIDGET_CAN_FOCUS(container) && (dir == GTK_DIR_TAB_FORWARD || dir == GTK_DIR_TAB_BACKWARD)) { focuschild = container->focus_child; gtk_container_set_focus_child(container, NULL); if (dir == GTK_DIR_TAB_FORWARD) pos = cols->taborder; else pos = g_list_last(cols->taborder); while (pos) { GtkWidget *child = pos->data; if (focuschild) { if (focuschild == child) { focuschild = NULL; /* now we can start looking in here */ if (GTK_WIDGET_DRAWABLE(child) && GTK_IS_CONTAINER(child) && !GTK_WIDGET_HAS_FOCUS(child)) { if (gtk_container_focus(GTK_CONTAINER(child), dir)) return TRUE; } } } else if (GTK_WIDGET_DRAWABLE(child)) { if (GTK_IS_CONTAINER(child)) { if (gtk_container_focus(GTK_CONTAINER(child), dir)) return TRUE; } else if (GTK_WIDGET_CAN_FOCUS(child)) { gtk_widget_grab_focus(child); return TRUE; } } if (dir == GTK_DIR_TAB_FORWARD) pos = pos->next; else pos = pos->prev; } return FALSE; } else return columns_inherited_focus(container, dir); }
static void columns_size_request(GtkWidget *widget, GtkRequisition *req) { Columns *cols; g_return_if_fail(widget != NULL); g_return_if_fail(IS_COLUMNS(widget)); g_return_if_fail(req != NULL); cols = COLUMNS(widget); req->width = columns_compute_width(cols, columns_gtk2_get_width); req->height = columns_compute_height(cols, columns_gtk2_get_height); }
static void columns_remove(GtkContainer *container, GtkWidget *widget) { Columns *cols; ColumnsChild *child; GtkWidget *childw; GList *children; gboolean was_visible; g_return_if_fail(container != NULL); g_return_if_fail(IS_COLUMNS(container)); g_return_if_fail(widget != NULL); cols = COLUMNS(container); for (children = cols->children; children && (child = children->data); children = children->next) { if (child->widget != widget) continue; was_visible = gtk_widget_get_visible(widget); gtk_widget_unparent(widget); cols->children = g_list_remove_link(cols->children, children); g_list_free(children); if (child->same_height_as) { g_return_if_fail(child->same_height_as->same_height_as == child); child->same_height_as->same_height_as = NULL; if (gtk_widget_get_visible(child->same_height_as->widget)) gtk_widget_queue_resize(GTK_WIDGET(container)); } g_free(child); if (was_visible) gtk_widget_queue_resize(GTK_WIDGET(container)); break; } for (children = cols->taborder; children && (childw = children->data); children = children->next) { if (childw != widget) continue; cols->taborder = g_list_remove_link(cols->taborder, children); g_list_free(children); #if GTK_CHECK_VERSION(2, 0, 0) gtk_container_set_focus_chain(container, cols->taborder); #endif break; } }
static void columns_get_preferred_width(GtkWidget *widget, gint *min, gint *nat) { Columns *cols; g_return_if_fail(widget != NULL); g_return_if_fail(IS_COLUMNS(widget)); cols = COLUMNS(widget); if (min) *min = columns_compute_width(cols, columns_gtk3_get_min_width); if (nat) *nat = columns_compute_width(cols, columns_gtk3_get_nat_width); }
static void columns_base_add(GtkContainer *container, GtkWidget *widget) { Columns *cols; g_return_if_fail(container != NULL); g_return_if_fail(IS_COLUMNS(container)); g_return_if_fail(widget != NULL); cols = COLUMNS(container); /* * Default is to add a new widget spanning all columns. */ columns_add(cols, widget, 0, 0); /* 0 means ncols */ }
void columns_force_left_align(Columns *cols, GtkWidget *widget) { ColumnsChild *child; g_return_if_fail(cols != NULL); g_return_if_fail(IS_COLUMNS(cols)); g_return_if_fail(widget != NULL); child = columns_find_child(cols, widget); g_return_if_fail(child != NULL); child->force_left = TRUE; if (gtk_widget_get_visible(widget)) gtk_widget_queue_resize(GTK_WIDGET(cols)); }
static void columns_unmap(GtkWidget *widget) { Columns *cols; ColumnsChild *child; GList *children; g_return_if_fail(widget != NULL); g_return_if_fail(IS_COLUMNS(widget)); cols = COLUMNS(widget); gtk_widget_set_mapped(GTK_WIDGET(cols), FALSE); for (children = cols->children; children && (child = children->data); children = children->next) { if (child->widget && gtk_widget_get_visible(child->widget) && gtk_widget_get_mapped(child->widget)) gtk_widget_unmap(child->widget); } }
void columns_force_same_height(Columns *cols, GtkWidget *cw1, GtkWidget *cw2) { ColumnsChild *child1, *child2; g_return_if_fail(cols != NULL); g_return_if_fail(IS_COLUMNS(cols)); g_return_if_fail(cw1 != NULL); g_return_if_fail(cw2 != NULL); child1 = columns_find_child(cols, cw1); g_return_if_fail(child1 != NULL); child2 = columns_find_child(cols, cw2); g_return_if_fail(child2 != NULL); child1->same_height_as = child2; child2->same_height_as = child1; if (gtk_widget_get_visible(cw1) || gtk_widget_get_visible(cw2)) gtk_widget_queue_resize(GTK_WIDGET(cols)); }
static void columns_get_preferred_height_for_width(GtkWidget *widget, gint width, gint *min, gint *nat) { Columns *cols; g_return_if_fail(widget != NULL); g_return_if_fail(IS_COLUMNS(widget)); cols = COLUMNS(widget); /* FIXME: which one should the get-height function here be? */ columns_alloc_horiz(cols, width, columns_gtk3_get_nat_width); if (min) *min = columns_compute_height(cols, columns_gtk3_get_minfw_height); if (nat) *nat = columns_compute_height(cols, columns_gtk3_get_natfw_height); }
void columns_set_cols(Columns *cols, gint ncols, const gint *percentages) { ColumnsChild *childdata; gint i; g_return_if_fail(cols != NULL); g_return_if_fail(IS_COLUMNS(cols)); g_return_if_fail(ncols > 0); g_return_if_fail(percentages != NULL); childdata = g_new(ColumnsChild, 1); childdata->widget = NULL; childdata->ncols = ncols; childdata->percentages = g_new(gint, ncols); childdata->force_left = FALSE; for (i = 0; i < ncols; i++) childdata->percentages[i] = percentages[i]; cols->children = g_list_append(cols->children, childdata); }
static void columns_remove(GtkContainer *container, GtkWidget *widget) { Columns *cols; ColumnsChild *child; GtkWidget *childw; GList *children; gboolean was_visible; g_return_if_fail(container != NULL); g_return_if_fail(IS_COLUMNS(container)); g_return_if_fail(widget != NULL); cols = COLUMNS(container); for (children = cols->children; children && (child = children->data); children = children->next) { if (child->widget != widget) continue; was_visible = GTK_WIDGET_VISIBLE(widget); gtk_widget_unparent(widget); cols->children = g_list_remove_link(cols->children, children); g_list_free(children); g_free(child); if (was_visible) gtk_widget_queue_resize(GTK_WIDGET(container)); break; } for (children = cols->taborder; children && (childw = children->data); children = children->next) { if (childw != widget) continue; cols->taborder = g_list_remove_link(cols->taborder, children); g_list_free(children); break; } }
void columns_force_left_align(Columns *cols, GtkWidget *widget) { ColumnsChild *child; GList *children; g_return_if_fail(cols != NULL); g_return_if_fail(IS_COLUMNS(cols)); g_return_if_fail(widget != NULL); for (children = cols->children; children && (child = children->data); children = children->next) { if (child->widget != widget) continue; child->force_left = TRUE; if (GTK_WIDGET_VISIBLE(widget)) gtk_widget_queue_resize(GTK_WIDGET(cols)); break; } }
static void columns_draw(GtkWidget *widget, GdkRectangle *area) { Columns *cols; ColumnsChild *child; GList *children; GdkRectangle child_area; g_return_if_fail(widget != NULL); g_return_if_fail(IS_COLUMNS(widget)); if (GTK_WIDGET_DRAWABLE(widget)) { cols = COLUMNS(widget); for (children = cols->children; children && (child = children->data); children = children->next) { if (child->widget && GTK_WIDGET_DRAWABLE(child->widget) && gtk_widget_intersect(child->widget, area, &child_area)) gtk_widget_draw(child->widget, &child_area); } } }
void columns_taborder_last(Columns *cols, GtkWidget *widget) { GtkWidget *childw; GList *children; g_return_if_fail(cols != NULL); g_return_if_fail(IS_COLUMNS(cols)); g_return_if_fail(widget != NULL); for (children = cols->taborder; children && (childw = children->data); children = children->next) { if (childw != widget) continue; cols->taborder = g_list_remove_link(cols->taborder, children); g_list_free(children); cols->taborder = g_list_append(cols->taborder, widget); break; } }
/* * These appear to be thoroughly tedious functions; the only reason * we have to reimplement them at all is because we defined our own * format for our GList of children... */ static void columns_map(GtkWidget *widget) { Columns *cols; ColumnsChild *child; GList *children; g_return_if_fail(widget != NULL); g_return_if_fail(IS_COLUMNS(widget)); cols = COLUMNS(widget); GTK_WIDGET_SET_FLAGS(cols, GTK_MAPPED); for (children = cols->children; children && (child = children->data); children = children->next) { if (child->widget && GTK_WIDGET_VISIBLE(child->widget) && !GTK_WIDGET_MAPPED(child->widget)) gtk_widget_map(child->widget); } }
void columns_taborder_last(Columns *cols, GtkWidget *widget) { GtkWidget *childw; GList *children; g_return_if_fail(cols != NULL); g_return_if_fail(IS_COLUMNS(cols)); g_return_if_fail(widget != NULL); for (children = cols->taborder; children && (childw = children->data); children = children->next) { if (childw != widget) continue; cols->taborder = g_list_remove_link(cols->taborder, children); g_list_free(children); cols->taborder = g_list_append(cols->taborder, widget); #if GTK_CHECK_VERSION(2, 0, 0) gtk_container_set_focus_chain(GTK_CONTAINER(cols), cols->taborder); #endif break; } }
static void columns_size_request(GtkWidget *widget, GtkRequisition *req) { Columns *cols; ColumnsChild *child; GList *children; gint i, ncols, colspan, *colypos; const gint *percentages; static const gint onecol[] = { 100 }; g_return_if_fail(widget != NULL); g_return_if_fail(IS_COLUMNS(widget)); g_return_if_fail(req != NULL); cols = COLUMNS(widget); req->width = 0; req->height = cols->spacing; ncols = 1; colypos = g_new(gint, 1); colypos[0] = 0; percentages = onecol; for (children = cols->children; children && (child = children->data); children = children->next) { GtkRequisition creq; if (!child->widget) { /* Column reconfiguration. */ for (i = 1; i < ncols; i++) { if (colypos[0] < colypos[i]) colypos[0] = colypos[i]; } ncols = child->ncols; percentages = child->percentages; colypos = g_renew(gint, colypos, ncols); for (i = 1; i < ncols; i++) colypos[i] = colypos[0]; continue; } /* Only take visible widgets into account. */ if (!GTK_WIDGET_VISIBLE(child->widget)) continue; gtk_widget_size_request(child->widget, &creq); colspan = child->colspan ? child->colspan : ncols-child->colstart; /* * To compute width: we know that creq.width plus * cols->spacing needs to equal a certain percentage of the * full width of the container. So we work this value out, * figure out how wide the container will need to be to * make that percentage of it equal to that width, and * ensure our returned width is at least that much. Very * simple really. */ { int percent, thiswid, fullwid; percent = 0; for (i = 0; i < colspan; i++) percent += percentages[child->colstart+i]; thiswid = creq.width + cols->spacing; /* * Since creq is the _minimum_ size the child needs, we * must ensure that it gets _at least_ that size. * Hence, when scaling thiswid up to fullwid, we must * round up, which means adding percent-1 before * dividing by percent. */ fullwid = (thiswid * 100 + percent - 1) / percent; /* * The above calculation assumes every widget gets * cols->spacing on the right. So we subtract * cols->spacing here to account for the extra load of * spacing on the right. */ if (req->width < fullwid - cols->spacing) req->width = fullwid - cols->spacing; } /* * To compute height: the widget's top will be positioned * at the largest y value so far reached in any of the * columns it crosses. Then it will go down by creq.height * plus padding; and the point it reaches at the bottom is * the new y value in all those columns, and minus the * padding it is also a lower bound on our own size * request. */ { int topy, boty; topy = 0; for (i = 0; i < colspan; i++) { if (topy < colypos[child->colstart+i]) topy = colypos[child->colstart+i]; } boty = topy + creq.height + cols->spacing; for (i = 0; i < colspan; i++) { colypos[child->colstart+i] = boty; } if (req->height < boty - cols->spacing) req->height = boty - cols->spacing; } } req->width += 2*GTK_CONTAINER(cols)->border_width; req->height += 2*GTK_CONTAINER(cols)->border_width; g_free(colypos); }
static void columns_size_allocate(GtkWidget *widget, GtkAllocation *alloc) { Columns *cols; ColumnsChild *child; GList *children; gint i, ncols, colspan, border, *colxpos, *colypos; const gint *percentages; static const gint onecol[] = { 100 }; g_return_if_fail(widget != NULL); g_return_if_fail(IS_COLUMNS(widget)); g_return_if_fail(alloc != NULL); cols = COLUMNS(widget); widget->allocation = *alloc; border = GTK_CONTAINER(cols)->border_width; ncols = 1; percentages = onecol; /* colxpos gives the starting x position of each column. * We supply n+1 of them, so that we can find the RH edge easily. * All ending x positions are expected to be adjusted afterwards by * subtracting the spacing. */ colxpos = g_new(gint, 2); colxpos[0] = 0; colxpos[1] = alloc->width - 2*border + cols->spacing; /* As in size_request, colypos is the lowest y reached in each column. */ colypos = g_new(gint, 1); colypos[0] = 0; for (children = cols->children; children && (child = children->data); children = children->next) { GtkRequisition creq; GtkAllocation call; if (!child->widget) { gint percent; /* Column reconfiguration. */ for (i = 1; i < ncols; i++) { if (colypos[0] < colypos[i]) colypos[0] = colypos[i]; } ncols = child->ncols; percentages = child->percentages; colypos = g_renew(gint, colypos, ncols); for (i = 1; i < ncols; i++) colypos[i] = colypos[0]; colxpos = g_renew(gint, colxpos, ncols + 1); colxpos[0] = 0; percent = 0; for (i = 0; i < ncols; i++) { percent += percentages[i]; colxpos[i+1] = (((alloc->width - 2*border) + cols->spacing) * percent / 100); } continue; } /* Only take visible widgets into account. */ if (!GTK_WIDGET_VISIBLE(child->widget)) continue; gtk_widget_get_child_requisition(child->widget, &creq); colspan = child->colspan ? child->colspan : ncols-child->colstart; /* * Starting x position is cols[colstart]. * Ending x position is cols[colstart+colspan] - spacing. * * Unless we're forcing left, in which case the width is * exactly the requisition width. */ call.x = alloc->x + border + colxpos[child->colstart]; if (child->force_left) call.width = creq.width; else call.width = (colxpos[child->colstart+colspan] - colxpos[child->colstart] - cols->spacing); /* * To compute height: the widget's top will be positioned * at the largest y value so far reached in any of the * columns it crosses. Then it will go down by creq.height * plus padding; and the point it reaches at the bottom is * the new y value in all those columns. */ { int topy, boty; topy = 0; for (i = 0; i < colspan; i++) { if (topy < colypos[child->colstart+i]) topy = colypos[child->colstart+i]; } call.y = alloc->y + border + topy; call.height = creq.height; boty = topy + creq.height + cols->spacing; for (i = 0; i < colspan; i++) { colypos[child->colstart+i] = boty; } } gtk_widget_size_allocate(child->widget, &call); } g_free(colxpos); g_free(colypos); }