Codex
289 lines
8.0 KiB
C++
289 lines
8.0 KiB
C++
#include "Control.h"
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#include "SxLog.h"
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#include<assert.h>
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#include "Window.h"
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StellarX::ControlText& StellarX::ControlText::operator=(const ControlText& text)
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{
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{
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nHeight = text.nHeight;
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nWidth = text.nWidth;
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lpszFace = text.lpszFace;
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color = text.color;
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nEscapement = text.nEscapement;
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nOrientation = text.nOrientation;
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nWeight = text.nWeight;
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bItalic = text.bItalic;
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bUnderline = text.bUnderline;
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bStrikeOut = text.bStrikeOut;
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return *this;
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}
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}
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bool StellarX::ControlText::operator!=(const ControlText& text)
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{
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if(nHeight != text.nHeight)
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return true;
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else if (nWidth != text.nWidth)
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return true;
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else if (lpszFace != text.lpszFace)
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return true;
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else if (color != text.color)
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return true;
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else if (nEscapement != text.nEscapement)
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return true;
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else if (nOrientation != text.nOrientation)
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return true;
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else if (nWeight != text.nWeight)
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return true;
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else if (bItalic != text.bItalic)
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return true;
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else if (bUnderline != text.bUnderline)
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return true;
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else if (bStrikeOut != text.bStrikeOut)
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return true;
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return false;
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}
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void Control::setIsVisible(bool show)
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{
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SX_LOGD("Control") << SX_T("重置可见状态: id=", "setIsVisible: id=")
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<< id
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<< " show=" << (show ? 1 : 0);
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if (this->show == show)
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return;
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this->show = show;
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this->dirty = true;
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if (!show)
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{
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// 隐藏：擦除自己在屏幕上的内容，并释放快照
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discardBackground();
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return;
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}
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// 显示：不在这里 requestRepaint（避免父容器快照未就绪时子控件抢跑 draw，污染快照）
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// 仅向上标脏，让事件收口阶段由容器统一重绘。
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if (parent)
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parent->setDirty(true);
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}
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void Control::onWindowResize()
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{
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SX_LOGD("Layout") << SX_T("尺寸变化：id=", "onWindowResize: id=") << id
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<< SX_T(" -> 丢背景快照 + 标脏", " -> discardSnap + dirty");
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// 自己：丢快照 + 标脏
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invalidateBackgroundSnapshot();
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setDirty(true);
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}
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void Control::setLayoutMode(StellarX::LayoutMode layoutMode_)
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{
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this->layoutMode = layoutMode_;
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}
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void Control::setAnchor(StellarX::Anchor anchor_1, StellarX::Anchor anchor_2)
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{
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this->anchor_1 = anchor_1;
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this->anchor_2 = anchor_2;
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}
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StellarX::Anchor Control::getAnchor_1() const
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{
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return this->anchor_1;
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}
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StellarX::Anchor Control::getAnchor_2() const
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{
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return this->anchor_2;
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}
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StellarX::LayoutMode Control::getLayoutMode() const
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{
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return this->layoutMode;
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}
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// 保存当前的绘图状态（字体、颜色、线型等）
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// 在控件绘制前调用，确保不会影响全局绘图状态
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void Control::saveStyle()
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{
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gettextstyle(¤tFont); // 获取当前字体样式
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currentColor = gettextcolor(); // 获取当前字体颜色
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currentBorderColor = getlinecolor(); //保存当前边框颜色
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getlinestyle(¤tLineStyle); //保存当前线型
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currentBkColor = getfillcolor(); //保存当前填充色
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}
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// 恢复之前保存的绘图状态
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// 在控件绘制完成后调用，恢复全局绘图状态
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void Control::restoreStyle()
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{
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settextstyle(¤tFont); // 恢复默认字体样式
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settextcolor(currentColor); // 恢复默认字体颜色
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setfillcolor(currentBkColor);
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setlinestyle(¤tLineStyle);
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setlinecolor(currentBorderColor);
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setfillstyle(BS_SOLID);//恢复填充
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}
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void Control::requestRepaint(Control* parent)
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{
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if (shouldDeferManagedRepaint())
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{
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// 托管路径：当前正在 Window 的事件分发阶段，不能立即绘制；
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// 这里只登记 source，真正的 root 选择由 Window 在 requestManagedRepaint 中完成。
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if (auto* host = getHostWindow())
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host->requestManagedRepaint(this);
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return;
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}
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// 说明：
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// - 常规路径：子控件调用 requestRepaint(this->parent)，然后 parent 负责局部重绘（Canvas/TabControl override）
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// - 兜底路径：如果某个“容器控件”没 override requestRepaint，就会出现 parent==this 的递归风险
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// 此时我们改为向更上层冒泡，直到根重绘。
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if (parent == this)
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{
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SX_LOGW("Dirty")
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<< SX_T("requestRepaint（默认容器兜底）：id=", "requestRepaint(default-container-fallback): id=")
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<< id
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<< SX_T("，parent==this，向上层 parent 继续冒泡", " parent==this, bubble to upper parent");
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if (this->parent) this->parent->requestRepaint(this->parent);
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else onRequestRepaintAsRoot();
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return;
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}
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SX_LOG_TRACE("Dirty") << SX_T("请求重绘：id=","requestRepaint: id=") << id << " parent=" << (parent ? parent->getId() : "null");
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if (parent) parent->requestRepaint(parent); // 交给容器处理（容器可局部重绘）
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else onRequestRepaintAsRoot(); // 根兜底
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}
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void Control::onRequestRepaintAsRoot()
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{
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if (shouldDeferManagedRepaint())
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{
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// 即使已经冒泡到 root，只要还在托管分发期，也不能直接绘制；
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// 仍然回到 Window 做统一提交。
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if (auto* host = getHostWindow())
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host->requestManagedRepaint(this);
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return;
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}
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SX_LOG_TRACE("Dirty")
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<< SX_T("触发根重绘：id=", "onRequestRepaintAsRoot: id=") << id
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<< SX_T("（从根节点开始重画）", " (root repaint)");
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discardBackground();
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setDirty(true);
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draw(); // 只有“无父”时才允许立即画，不会被谁覆盖
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}
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bool Control::shouldDeferManagedRepaint() const
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{
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Window* host = getHostWindow();
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return host && host->isManagedDispatchActive();
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}
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// 获取宿主 Window：
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// - 顶层控件由 Window/addDialog 直接注入；
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// - 子控件没有直接注入时，沿 parent 链向上回溯即可。
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Window* Control::getHostWindow() const
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{
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if (hostWindow)
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return hostWindow;
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return parent ? parent->getHostWindow() : nullptr;
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}
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// 托管重绘 root 选择规则：
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// - 对于直接挂在 Window 下的控件，root 就是它自己；
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// - 对于嵌套在 Canvas/TabControl/Dialog 内的子控件，沿 parent 向上找到与宿主 Window 同属一棵树的最上层控件。
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Control* Control::getManagedRepaintRoot()
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{
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Control* root = this;
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Window* host = getHostWindow();
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while (root->parent && root->parent->getHostWindow() == host)
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root = root->parent;
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return root;
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}
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RECT Control::getBoundsRect() const
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{
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RECT rc{};
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rc.left = x;
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rc.top = y;
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rc.right = x + width;
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rc.bottom = y + height;
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return rc;
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}
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bool Control::canCommitManagedPartialRepaint() const
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{
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// 基类默认不承诺自己能安全做局部提交；
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// 只有 Canvas / TabControl / Dialog 这类“拥有完整背景语义”的 root 才会 override 为 true。
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return false;
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}
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void Control::commitManagedRepaint()
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{
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if (!show)
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return;
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// 基类兜底：如果没有更具体的容器实现，就按根级重绘处理。
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if (dirty)
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onRequestRepaintAsRoot();
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}
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void Control::saveBackground(int x, int y, int w, int h)
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{
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if (w <= 0 || h <= 0) return;
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saveBkX = x; saveBkY = y; saveWidth = w; saveHeight = h;
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if (saveBkImage)
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{
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//尺寸变了才重建，避免反复 new/delete
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if (saveBkImage->getwidth() != w || saveBkImage->getheight() != h)
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{
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SX_LOGD("Snap") <<SX_T("重新保存背景快照：id=", "saveBackground rebuild: id=") << id << " size=(" << w << "x" << h << ")";
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saveBkImage.reset();
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}
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}
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else
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SX_LOGD("Snap") << SX_T("保存背景快照：id=", "saveBackground rebuild: id=") << id << " size=(" << w << "x" << h << ")";
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if (!saveBkImage) saveBkImage = std::make_unique<IMAGE>(w, h);
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SetWorkingImage(nullptr); // ★抓屏幕
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getimage(saveBkImage.get(), x, y, w, h);
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hasSnap = true;
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}
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void Control::restBackground()
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{
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if (!hasSnap || !saveBkImage) return;
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// 直接回贴屏幕（与抓取一致）
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SetWorkingImage(nullptr);
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putimage(saveBkX, saveBkY, saveBkImage.get());
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}
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void Control::discardBackground()
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{
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if (saveBkImage)
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{
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restBackground();
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SX_LOGD("Snap") << SX_T("丢弃背景快照：id=","discardBackground: id=") << id << " hasSnap=" << (hasSnap ? 1 : 0);
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saveBkImage.reset();
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}
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hasSnap = false; saveWidth = saveHeight = 0;
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}
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void Control::invalidateBackgroundSnapshot()
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{
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if (saveBkImage)
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{
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SX_LOGD("Snap") << SX_T("作废背景快照：id=", "invalidateBackgroundSnapshot: id=") << id
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<< " hasSnap=" << (hasSnap ? 1 : 0);
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saveBkImage.reset();
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}
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hasSnap = false;
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saveBkX = saveBkY = 0;
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saveWidth = saveHeight = 0;
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}
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