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authorRĂ©mi Verschelde <rverschelde@gmail.com>2019-09-28 21:17:53 +0200
committerGitHub <noreply@github.com>2019-09-28 21:17:53 +0200
commitc9e1aced53929159f3deaba21df258c991e7ef7f (patch)
treed185cc70ae6034ff2cba2e32932f51c041e516a1
parentb0f0e0e2fc95743adccf76ce82696be5b9553536 (diff)
parent24ed6b58e1f06f93eaad781dfbcc400323bdeabd (diff)
Merge pull request #32038 from YeldhamDev/gridcontainer_expand_columns
Make empty columns automatically expand in GridContainer
-rw-r--r--doc/classes/GridContainer.xml3
-rw-r--r--scene/gui/grid_container.cpp35
2 files changed, 21 insertions, 17 deletions
diff --git a/doc/classes/GridContainer.xml b/doc/classes/GridContainer.xml
index 7656a579af..e8c764f412 100644
--- a/doc/classes/GridContainer.xml
+++ b/doc/classes/GridContainer.xml
@@ -4,7 +4,8 @@
Grid container used to arrange elements in a grid like layout.
</brief_description>
<description>
- Grid container will arrange its children in a grid like structure, the grid columns are specified using the [member columns] property and the number of rows will be equal to the number of children in the container divided by the number of columns. For example, if the container has 5 children, and 2 columns, there will be 3 rows in the container. Notice that grid layout will preserve the columns and rows for every size of the container.
+ Grid container will arrange its children in a grid like structure, the grid columns are specified using the [member columns] property and the number of rows will be equal to the number of children in the container divided by the number of columns. For example, if the container has 5 children, and 2 columns, there will be 3 rows in the container.
+ Notice that grid layout will preserve the columns and rows for every size of the container, and that empty columns will be expanded automatically.
</description>
<tutorials>
</tutorials>
diff --git a/scene/gui/grid_container.cpp b/scene/gui/grid_container.cpp
index d0e2edc7b5..a6842603fd 100644
--- a/scene/gui/grid_container.cpp
+++ b/scene/gui/grid_container.cpp
@@ -36,20 +36,18 @@ void GridContainer::_notification(int p_what) {
case NOTIFICATION_SORT_CHILDREN: {
- int valid_controls_index;
-
- Map<int, int> col_minw; // max of min_width of all controls in each col (indexed by col)
- Map<int, int> row_minh; // max of min_height of all controls in each row (indexed by row)
- Set<int> col_expanded; // columns which have the SIZE_EXPAND flag set
- Set<int> row_expanded; // rows which have the SIZE_EXPAND flag set
+ Map<int, int> col_minw; // Max of min_width of all controls in each col (indexed by col).
+ Map<int, int> row_minh; // Max of min_height of all controls in each row (indexed by row).
+ Set<int> col_expanded; // Columns which have the SIZE_EXPAND flag set.
+ Set<int> row_expanded; // Rows which have the SIZE_EXPAND flag set.
int hsep = get_constant("hseparation");
int vsep = get_constant("vseparation");
int max_col = MIN(get_child_count(), columns);
int max_row = get_child_count() / columns;
- // Compute the per-column/per-row data
- valid_controls_index = 0;
+ // Compute the per-column/per-row data.
+ int valid_controls_index = 0;
for (int i = 0; i < get_child_count(); i++) {
Control *c = Object::cast_to<Control>(get_child(i));
if (!c || !c->is_visible_in_tree())
@@ -77,7 +75,12 @@ void GridContainer::_notification(int p_what) {
}
}
- // Evaluate the remaining space for expanded columns/rows
+ // Consider all empty columns expanded.
+ for (int i = valid_controls_index; i < columns; i++) {
+ col_expanded.insert(i);
+ }
+
+ // Evaluate the remaining space for expanded columns/rows.
Size2 remaining_space = get_size();
for (Map<int, int>::Element *E = col_minw.front(); E; E = E->next()) {
if (!col_expanded.has(E->key()))
@@ -93,7 +96,7 @@ void GridContainer::_notification(int p_what) {
bool can_fit = false;
while (!can_fit && col_expanded.size() > 0) {
- // Check if all minwidth constraints are ok if we use the remaining space
+ // Check if all minwidth constraints are OK if we use the remaining space.
can_fit = true;
int max_index = col_expanded.front()->get();
for (Set<int>::Element *E = col_expanded.front(); E; E = E->next()) {
@@ -105,7 +108,7 @@ void GridContainer::_notification(int p_what) {
}
}
- // If not, the column with maximum minwidth is not expanded
+ // If not, the column with maximum minwidth is not expanded.
if (!can_fit) {
col_expanded.erase(max_index);
remaining_space.width -= col_minw[max_index];
@@ -114,7 +117,7 @@ void GridContainer::_notification(int p_what) {
can_fit = false;
while (!can_fit && row_expanded.size() > 0) {
- // Check if all minwidth constraints are ok if we use the remaining space
+ // Check if all minheight constraints are OK if we use the remaining space.
can_fit = true;
int max_index = row_expanded.front()->get();
for (Set<int>::Element *E = row_expanded.front(); E; E = E->next()) {
@@ -126,14 +129,14 @@ void GridContainer::_notification(int p_what) {
}
}
- // If not, the row with maximum minwidth is not expanded
+ // If not, the row with maximum minheight is not expanded.
if (!can_fit) {
row_expanded.erase(max_index);
remaining_space.height -= row_minh[max_index];
}
}
- // Finally, fit the nodes
+ // Finally, fit the nodes.
int col_expand = col_expanded.size() > 0 ? remaining_space.width / col_expanded.size() : 0;
int row_expand = row_expanded.size() > 0 ? remaining_space.height / row_expanded.size() : 0;
@@ -152,11 +155,11 @@ void GridContainer::_notification(int p_what) {
if (col == 0) {
col_ofs = 0;
if (row > 0)
- row_ofs += ((row_expanded.has(row - 1)) ? row_expand : row_minh[row - 1]) + vsep;
+ row_ofs += (row_expanded.has(row - 1) ? row_expand : row_minh[row - 1]) + vsep;
}
Point2 p(col_ofs, row_ofs);
- Size2 s((col_expanded.has(col)) ? col_expand : col_minw[col], (row_expanded.has(row)) ? row_expand : row_minh[row]);
+ Size2 s(col_expanded.has(col) ? col_expand : col_minw[col], row_expanded.has(row) ? row_expand : row_minh[row]);
fit_child_in_rect(c, Rect2(p, s));