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implement action redo

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This commit is contained in:
omigamedev
2018-05-10 22:32:34 +02:00
parent f31e22631a
commit 4f55b477da
6 changed files with 66 additions and 2 deletions
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29
engine/canvas.cpp
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@@ -160,6 +160,35 @@ void ui::Canvas::snap_history(const std::vector<int>& planes)
action->clear_layer = true;
ActionManager::add(action);
}
ui::ActionStroke* ui::Canvas::create_action(int layer)
{
auto action = new ActionStroke;
for (int i = 0; i < 6; i++)
{
if (!m_layers[layer].m_dirty_face[i])
continue; // no stroke on this face, skip it
m_layers[layer].m_rtt[i].bindFramebuffer();
// save image before commit
glm::vec2 box_or = xy(m_layers[layer].m_dirty_box[i]);
glm::vec2 box_sz = zw(m_layers[layer].m_dirty_box[i]) - xy(m_layers[layer].m_dirty_box[i]);
action->m_image[i] = std::make_unique<uint8_t[]>(box_sz.x * box_sz.y * 4);
glReadPixels(box_or.x, box_or.y, box_sz.x, box_sz.y, GL_RGBA, GL_UNSIGNED_BYTE, action->m_image[i].get());
action->m_box[i] = m_layers[layer].m_dirty_box[i];
action->m_old_box[i] = m_layers[layer].m_dirty_box[i];
action->m_old_dirty[i] = m_layers[layer].m_dirty_face[i];
m_layers[layer].m_rtt[i].unbindFramebuffer();
}
// save history
action->m_layer_idx = layer;
action->m_canvas = this;
action->m_stroke = std::move(m_current_stroke);
action->clear_layer = true;
return action;
}
void ui::Canvas::stroke_end()
{
if (!m_current_stroke)