ProportionalLayout.cpp

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#include "Utils/ProportionalLayout.h"
 
#include <algorithm>
 
namespace EmberUI {
 
void ProportionalLayout::Track(const wxString &paneName, double proportion, double minProportion, bool isWidth) {
    for (auto &e : m_entries) {
        if (e.paneName == paneName) {
            e.proportion = proportion;
            e.minProportion = minProportion;
            e.isWidth = isWidth;
            return;
        }
    }
    m_entries.push_back({paneName, proportion, minProportion, isWidth});
}
 
void ProportionalLayout::HandleResize(wxAuiManager *mgr, const wxSize &oldClientSize, const wxSize &newClientSize) {
    if (!mgr || newClientSize.x <= 0 || newClientSize.y <= 0)
        return;
 
    for (auto &entry : m_entries) {
        wxAuiPaneInfo &pane = mgr->GetPane(entry.paneName);
        if (!pane.IsOk() || !pane.IsShown())
            continue;
 
        if (entry.isWidth) {
            int oldRef = oldClientSize.x;
            int newRef = newClientSize.x;
 
            if (oldRef > 0 && pane.rect.width > 0) {
                entry.proportion = static_cast<double>(pane.rect.width) / oldRef;
            }
 
            int newSize = static_cast<int>(newRef * entry.proportion);
            int minSize = static_cast<int>(newRef * entry.minProportion);
            newSize = std::max(newSize, minSize);
 
            pane.BestSize(wxSize(newSize, -1));
            pane.MinSize(wxSize(minSize, -1));
        } else {
            int oldRef = oldClientSize.y;
            int newRef = newClientSize.y;
 
            if (oldRef > 0 && pane.rect.height > 0) {
                entry.proportion = static_cast<double>(pane.rect.height) / oldRef;
            }
 
            int newSize = static_cast<int>(newRef * entry.proportion);
            int minSize = static_cast<int>(newRef * entry.minProportion);
            newSize = std::max(newSize, minSize);
 
            pane.BestSize(wxSize(-1, newSize));
            pane.MinSize(wxSize(-1, minSize));
        }
    }
}
 
} // namespace EmberUI