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https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 05:13:58 -07:00
8c250568e7
This PR introduces a new ScrollPanel component with the following capabilities: - Scroll Orientation Support: Allows scrolling in horizontal, vertical, or both directions, providing flexibility for different use cases. - Partial Object Rendering: Supports partial rendering of objects that are only partially visible within the scroll boundaries, improving visual accuracy and performance. - Boundary-Constrained Mouse Interaction: Handles mouse events strictly within the panel's visible boundaries, preventing interaction with objects outside the scrollable area. - Minimum Internal Size (min_width, min_height): Introduces support for virtual space management, allowing the panel to maintain a minimum internal size independent of its actual on-screen dimensions. Even when the panel is resized, this ensures that the content respects a defined virtual space (with min_width and min_height), effectively simulating a larger internal canvas. This is particularly useful for large content or scenarios where a more extensive scrollable area is required than the current visible panel.
57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
/* Copyright (C) 20244 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "IGUIPanel.h"
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#include "gui/CGUI.h"
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IGUIPanel::IGUIPanel(CGUI& pGUI)
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: IGUIObject(pGUI)
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{
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}
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IGUIPanel::~IGUIPanel()
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{
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}
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bool IGUIPanel::IsMouseOver() const
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{
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return m_CachedLayoutActualSize.PointInside(m_pGUI.GetMousePos());
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}
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void IGUIPanel::UpdateCachedSize()
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{
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IGUIObject::UpdateCachedSize();
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m_CachedLayoutActualSize = m_CachedActualSize;
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}
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CRect IGUIPanel::GetComputedSize()
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{
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UpdateCachedSize();
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return m_CachedLayoutActualSize;
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}
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const std::vector<IGUIObject*>& IGUIPanel::GetVisibleChildren() const
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{
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if (m_Drawing)
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return m_Children;
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static std::vector<IGUIObject*> emptyVector;
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return emptyVector;
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}
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