c0fa794e45
Putting this logic for delaying changes in the TextSelectionController isn't the cleanest, but all attempts at saving this state somewhere in the Lua API instead turned out even worse. Also, the logic for inverted selections probably does belong in there.
90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
// Copyright (c) 2014, Thomas Goyne <plorkyeran@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// Aegisub Project http://www.aegisub.org/
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#include "text_selection_controller.h"
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#include <wx/stc/stc.h>
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void TextSelectionController::SetControl(wxStyledTextCtrl *ctrl) {
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this->ctrl = ctrl;
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if (ctrl)
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ctrl->Bind(wxEVT_STC_UPDATEUI, &TextSelectionController::UpdateUI, this);
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}
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TextSelectionController::~TextSelectionController() {
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if (ctrl) ctrl->Unbind(wxEVT_STC_UPDATEUI, &TextSelectionController::UpdateUI, this);
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}
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#define GET(var, new_value) do { \
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int tmp = new_value; \
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if (tmp != var) { \
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var = tmp; \
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changed = true; \
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} \
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} while(false)
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#define SET(var, new_value, Setter) do { \
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if (var != new_value) { \
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var = new_value; \
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if (ctrl) ctrl->Setter(var); \
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} \
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} while (false)
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void TextSelectionController::UpdateUI(wxStyledTextEvent &evt) {
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if (changing) return;
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bool changed = false;
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GET(insertion_point, ctrl->GetInsertionPoint());
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if (evt.GetUpdated() & wxSTC_UPDATE_SELECTION) {
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GET(selection_start, ctrl->GetSelectionStart());
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GET(selection_end, ctrl->GetSelectionEnd());
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}
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else {
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GET(selection_start, insertion_point);
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GET(selection_end, insertion_point);
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}
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if (changed) AnnounceSelectionChanged();
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}
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void TextSelectionController::SetInsertionPoint(int position) {
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changing = true;
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SET(insertion_point, position, SetInsertionPoint);
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changing = false;
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AnnounceSelectionChanged();
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}
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void TextSelectionController::SetSelection(int start, int end) {
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changing = true;
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SET(selection_start, start, SetSelectionStart);
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SET(selection_end, end, SetSelectionEnd);
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changing = false;
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AnnounceSelectionChanged();
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}
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void TextSelectionController::CommitStagedChanges() {
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if (has_staged_selection) {
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if (staged_selection_start <= staged_selection_end) {
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SetSelection(staged_selection_start, staged_selection_end);
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} else {
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// commit some crimes to get this to work in all cases
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SetInsertionPoint(staged_selection_end == 0 ? staged_selection_start : 0);
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SetSelection(staged_selection_start, staged_selection_start);
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SetInsertionPoint(staged_selection_end);
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}
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has_staged_selection = false;
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}
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} |