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Make lines_added and lines_removed in SelectionListener::OnSelectedSetChanged mutually exclusive.

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Originally committed to SVN as r4629.
This commit is contained in:
Thomas Goyne 2010-06-28 07:13:03 +00:00
parent 574a247559
commit dfb844b6ab
2 changed files with 23 additions and 31 deletions
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49
aegisub/src/base_grid.cpp
View file

@ -61,6 +61,13 @@
#include "video_context.h"
#include "video_slider.h"
template<class S1, class S2, class D>
static inline void set_difference(const S1 &src1, const S2 &src2, D &dst) {
std::set_difference(
src1.begin(), src1.end(), src2.begin(), src2.end(),
std::inserter(dst, dst.begin()));
}
/// @brief Constructor
/// @param parent
@ -236,12 +243,9 @@ void BaseGrid::SelectRow(int row, bool addToSelected, bool select) {
AssDialogue *line = index_line_map[row];
if (!addToSelected) {
Selection old_selection(selection);
selection.clear();
if (select) {
selection.insert(line);
}
AnnounceSelectedSetChanged(selection, old_selection);
Selection sel;
if (select) sel.insert(line);
SetSelectedSet(sel);
}
else if (select && selection.find(line) == selection.end()) {
@ -278,28 +282,22 @@ void BaseGrid::SelectRow(int row, bool addToSelected, bool select) {
/// @brief Selects visible lines
///
void BaseGrid::SelectVisible() {
Selection lines_removed;
GetSelectedSet(lines_removed);
Selection new_selection;
int rows = GetRows();
bool selectedOne = false;
for (int i=0;i<rows;i++) {
if (IsDisplayed(GetDialogue(i))) {
AssDialogue *diag = GetDialogue(i);
if (IsDisplayed(diag)) {
if (!selectedOne) {
SelectRow(i,false);
MakeCellVisible(i,0);
selectedOne = true;
}
else {
SelectRow(i,true);
}
new_selection.insert(diag);
}
}
Selection lines_added;
GetSelectedSet(lines_added);
AnnounceSelectedSetChanged(lines_added, lines_removed);
SetSelectedSet(new_selection);
}
@ -1247,9 +1245,12 @@ wxArrayInt BaseGrid::GetRangeArray(int n1,int n2) const {
void BaseGrid::SetSelectedSet(const Selection &new_selection) {
Selection old_selection(selection);
Selection inserted;
Selection removed;
set_difference(new_selection, selection, inserted);
set_difference(selection, new_selection, removed);
selection = new_selection;
AnnounceSelectedSetChanged(new_selection, old_selection);
AnnounceSelectedSetChanged(inserted, removed);
Refresh(false);
}
@ -1300,18 +1301,12 @@ void BaseGrid::AnnounceSelectedSetChanged(const Selection &lines_added, const Se
if (batch_level > 0) {
// Remove all previously added lines that are now removed
Selection temp;
std::set_difference(
batch_selection_added.begin(), batch_selection_added.end(),
lines_removed.begin(), lines_removed.end(),
std::inserter(temp, temp.begin()));
set_difference(batch_selection_added, lines_removed, temp);
std::swap(temp, batch_selection_added);
temp.clear();
// Remove all previously removed lines that are now added
std::set_difference(
batch_selection_removed.begin(), batch_selection_removed.end(),
lines_added.begin(), lines_added.end(),
std::inserter(temp, temp.begin()));
set_difference(batch_selection_removed, lines_added, temp);
std::swap(temp, batch_selection_removed);
// Add new stuff to batch sets

5
aegisub/src/selection_controller.h
View file

@ -61,10 +61,7 @@ public:
/// @param lines_added Lines added to the selection
/// @param lines_removed Lines removed from the selection
///
/// Conceptually, removal happens before addition, for the purpose of this change notification.
///
/// In case the two sets overlap, the intersection are lines that were previously selected
/// and remain selected.
/// The two sets must not intersect.
virtual void OnSelectedSetChanged(const Selection &lines_added, const Selection &lines_removed) = 0;
};