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mirkobrombin
bf6e1d11ef
Assisted-by: Claude Code:claude-opus-5-5 AI-Scope: Wrote the window rectangle computation as own code, compared it with the previous code on generated input, and removed the ReactOS files and their licence entries.
56 lines
2.0 KiB
C++
56 lines
2.0 KiB
C++
#include "nonclient.h"
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namespace raven {
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int32_t DesktopMetrics::get(int32_t index) const
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{
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switch (index) {
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case 0: return screen_x;
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case 1: return screen_y;
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case 5: return border_x;
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case 6: return border_y;
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case 7: return dialog_x;
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case 8: return dialog_y;
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case 32: return frame_x;
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case 33: return frame_y;
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case 4: return caption;
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case 51: return small_caption;
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case 15: return menu;
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case 30: return button_x;
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case 31: return button_y;
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case 52: return small_button_x;
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case 53: return small_button_y;
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default: throw uint32_t(120);
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}
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}
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// How many border widths the frame around the client area takes: a raised edge is two, a static edge one, a window with any caption bit adds
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// the line of its border, and a client edge two more. A minimized window's frame does not resize, so the sizing part is left out.
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DesktopRect adjust_window_rect(const DesktopMetrics &metrics,DesktopRect rect,uint32_t style,bool menu,uint32_t ex_style)
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{
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constexpr uint32_t minimized=0x20000000,sizing=0x40000,dialog_frame=0x400000,caption_bits=0xc00000;
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constexpr uint32_t modal_frame=1,client_edge=0x200,tool_window=0x80,static_edge=0x20000;
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const bool raised=(style&minimized) || (ex_style&modal_frame) || (!(ex_style&static_edge) && (style&(sizing|dialog_frame)));
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int64_t lines=raised ? 2 : (ex_style&static_edge) ? 1 : 0;
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if (ex_style&client_edge)
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lines+=2;
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if ((style&caption_bits) || (ex_style&modal_frame))
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++lines;
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int64_t across=lines,down=lines;
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if ((style&sizing) && !(style&minimized)) {
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across+=int64_t(metrics.get(32))-metrics.get(7);
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down+=int64_t(metrics.get(33))-metrics.get(8);
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}
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across*=metrics.get(5);
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down*=metrics.get(6);
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// Wide intermediates avoid signed overflow; the public RECT is serialized modulo 32 bits.
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int64_t top=rect.top;
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if (menu)
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top-=metrics.get(15);
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if ((style&caption_bits)==caption_bits)
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top-=metrics.get((ex_style&tool_window) ? 51 : 4);
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return {int32_t(uint32_t(rect.left-across)),int32_t(uint32_t(top-down)),int32_t(uint32_t(rect.right+across)),int32_t(uint32_t(rect.bottom+down))};
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}
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}
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