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@@ -1,6 +1,6 @@ |
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/* |
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* Resize handle for DPF |
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* Copyright (C) 2021 Filipe Coelho <falktx@falktx.com> |
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* Copyright (C) 2021-2022 Filipe Coelho <falktx@falktx.com> |
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* |
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* Permission to use, copy, modify, and/or distribute this software for any purpose with |
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* or without fee is hereby granted, provided that the above copyright notice and this |
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@@ -19,6 +19,10 @@ |
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#include "TopLevelWidget.hpp" |
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#include "Color.hpp" |
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#if defined(DGL_OPENGL) && !defined(DGL_USE_OPENGL3) |
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#include "OpenGL-include.hpp" |
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#endif |
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START_NAMESPACE_DGL |
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/** Resize handle for DPF windows, will sit on bottom-right. */ |
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@@ -29,7 +33,8 @@ public: |
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explicit ResizeHandle(Window& window) |
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: TopLevelWidget(window), |
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handleSize(16), |
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resizing(false) |
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hasCursor(false), |
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isResizing(false) |
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{ |
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resetArea(); |
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} |
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@@ -38,12 +43,14 @@ public: |
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explicit ResizeHandle(TopLevelWidget* const tlw) |
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: TopLevelWidget(tlw->getWindow()), |
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handleSize(16), |
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resizing(false) |
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hasCursor(false), |
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isResizing(false) |
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{ |
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resetArea(); |
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} |
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/** Set the handle size, minimum 16. */ |
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/** Set the handle size, minimum 16. |
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* Scale factor is automatically applied on top of this size as needed */ |
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void setHandleSize(const uint size) |
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{ |
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handleSize = std::max(16u, size); |
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@@ -53,9 +60,15 @@ public: |
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protected: |
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void onDisplay() override |
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{ |
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// TODO implement gl3 stuff in DPF |
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#ifndef DGL_USE_OPENGL3 |
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const GraphicsContext& context(getGraphicsContext()); |
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const double lineWidth = 1.0 * getScaleFactor(); |
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#if defined(DGL_OPENGL) && !defined(DGL_USE_OPENGL3) |
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glMatrixMode(GL_MODELVIEW); |
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#endif |
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// draw white lines, 1px wide |
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Color(1.0f, 1.0f, 1.0f).setFor(context); |
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l1.draw(context, lineWidth); |
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@@ -71,6 +84,7 @@ protected: |
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l1b.draw(context, lineWidth); |
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l2b.draw(context, lineWidth); |
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l3b.draw(context, lineWidth); |
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#endif |
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} |
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bool onMouse(const MouseEvent& ev) override |
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@@ -80,15 +94,16 @@ protected: |
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if (ev.press && area.contains(ev.pos)) |
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{ |
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resizing = true; |
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isResizing = true; |
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resizingSize = Size<double>(getWidth(), getHeight()); |
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lastResizePoint = ev.pos; |
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return true; |
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} |
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if (resizing && ! ev.press) |
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if (isResizing && ! ev.press) |
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{ |
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resizing = false; |
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isResizing = false; |
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recheckCursor(ev.pos); |
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return true; |
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} |
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@@ -97,8 +112,11 @@ protected: |
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bool onMotion(const MotionEvent& ev) override |
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{ |
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if (! resizing) |
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if (! isResizing) |
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{ |
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recheckCursor(ev.pos); |
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return false; |
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} |
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const Size<double> offset(ev.pos.getX() - lastResizePoint.getX(), |
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ev.pos.getY() - lastResizePoint.getY()); |
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@@ -106,9 +124,11 @@ protected: |
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resizingSize += offset; |
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lastResizePoint = ev.pos; |
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// TODO min width, min height |
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const uint minWidth = 16; |
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const uint minHeight = 16; |
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// TODO keepAspectRatio |
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bool keepAspectRatio; |
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const Size<uint> minSize(getWindow().getGeometryConstraints(keepAspectRatio)); |
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const uint minWidth = minSize.getWidth(); |
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const uint minHeight = minSize.getHeight(); |
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if (resizingSize.getWidth() < minWidth) |
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resizingSize.setWidth(minWidth); |
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@@ -135,10 +155,21 @@ private: |
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uint handleSize; |
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// event handling state |
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bool resizing; |
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bool hasCursor, isResizing; |
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Point<double> lastResizePoint; |
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Size<double> resizingSize; |
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void recheckCursor(const Point<double>& pos) |
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{ |
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const bool shouldHaveCursor = area.contains(pos); |
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if (shouldHaveCursor == hasCursor) |
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return; |
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hasCursor = shouldHaveCursor; |
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setCursor(shouldHaveCursor ? kMouseCursorDiagonal : kMouseCursorArrow); |
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} |
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void resetArea() |
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{ |
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const double scaleFactor = getScaleFactor(); |
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