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ui: Use borderless window on Windows

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WerWolv
2021-08-18 22:36:46 +02:00
parent 48f27c2174
commit b66304fc91
15 changed files with 360 additions and 86 deletions
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184
source/window/win_window.cpp Normal file
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#include "window.hpp"
#if defined(OS_WINDOWS)
#include <imgui.h>
#include <GLFW/glfw3.h>
#define GLFW_EXPOSE_NATIVE_WIN32
#include <GLFW/glfw3native.h>
#include <winuser.h>
#include <dwmapi.h>
#include <windowsx.h>
#include <imgui_internal.h>
#include <codicons_font.h>
namespace hex {
static LONG_PTR oldWndProc;
static float titleBarHeight;
static ImGuiMouseCursor mouseCursorIcon;
LRESULT wndProcImHex(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_NCCALCSIZE: {
auto& params = *reinterpret_cast<NCCALCSIZE_PARAMS*>(lParam);
RECT &rect = params.rgrc[0];
WINDOWPLACEMENT placement;
if (!::GetWindowPlacement(hwnd, &placement) || placement.showCmd != SW_MAXIMIZE)
return 0;
auto monitor = ::MonitorFromWindow(hwnd, MONITOR_DEFAULTTONULL);
if (monitor == nullptr) {
return 0;
}
MONITORINFO monitor_info{};
monitor_info.cbSize = sizeof(monitor_info);
if (!::GetMonitorInfoW(monitor, &monitor_info))
return 0;
rect = monitor_info.rcWork;
return 0;
}
case WM_SETCURSOR: {
auto cursorPos = LOWORD(lParam);
switch (cursorPos) {
case HTRIGHT:
case HTLEFT:
mouseCursorIcon = ImGuiMouseCursor_ResizeEW;
return TRUE;
case HTTOP:
case HTBOTTOM:
mouseCursorIcon = ImGuiMouseCursor_ResizeNS;
return TRUE;
case HTTOPLEFT:
case HTBOTTOMRIGHT:
mouseCursorIcon = ImGuiMouseCursor_ResizeNWSE;
return TRUE;
case HTTOPRIGHT:
case HTBOTTOMLEFT:
mouseCursorIcon = ImGuiMouseCursor_ResizeNESW;
return TRUE;
default:
mouseCursorIcon = ImGuiMouseCursor_None;
return TRUE;
}
}
case WM_NCHITTEST: {
POINT cursor = { GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };
const POINT border{
::GetSystemMetrics(SM_CXFRAME) + ::GetSystemMetrics(SM_CXPADDEDBORDER),
::GetSystemMetrics(SM_CYFRAME) + ::GetSystemMetrics(SM_CXPADDEDBORDER)
};
RECT window;
if (!::GetWindowRect(hwnd, &window)) {
return HTNOWHERE;
}
constexpr auto RegionClient = 0b0000;
constexpr auto RegionLeft = 0b0001;
constexpr auto RegionRight = 0b0010;
constexpr auto RegionTop = 0b0100;
constexpr auto RegionBottom = 0b1000;
const auto result =
RegionLeft * (cursor.x < (window.left + border.x)) |
RegionRight * (cursor.x >= (window.right - border.x)) |
RegionTop * (cursor.y < (window.top + border.y)) |
RegionBottom * (cursor.y >= (window.bottom - border.y));
switch (result) {
case RegionLeft:
return HTLEFT;
case RegionRight:
return HTRIGHT;
case RegionTop:
return HTTOP;
case RegionBottom:
return HTBOTTOM;
case RegionTop | RegionLeft:
return HTTOPLEFT;
case RegionTop | RegionRight:
return HTTOPRIGHT;
case RegionBottom | RegionLeft:
return HTBOTTOMLEFT;
case RegionBottom | RegionRight:
return HTBOTTOMRIGHT;
case RegionClient:
if ((cursor.y < (window.top + titleBarHeight)) && !ImGui::IsAnyItemHovered())
return HTCAPTION;
else break;
}
}
}
return CallWindowProc((WNDPROC)oldWndProc, hwnd, uMsg, wParam, lParam);
}
void Window::setupNativeWindow() {
auto hwnd = glfwGetWin32Window(this->m_window);
oldWndProc = SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)wndProcImHex);
MARGINS borderless = {1,1,1,1};
DwmExtendFrameIntoClientArea(hwnd, &borderless);
SetWindowPos(hwnd, nullptr, 0, 0, 0, 0, SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED | SWP_ASYNCWINDOWPOS | SWP_NOSIZE | SWP_NOMOVE);
SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) | WS_POPUP | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_CAPTION | WS_SYSMENU);
}
void Window::updateNativeWindow() {
titleBarHeight = ImGui::GetCurrentWindow()->MenuBarHeight();
if (mouseCursorIcon != ImGuiMouseCursor_None)
ImGui::SetMouseCursor(mouseCursorIcon);
}
void Window::drawTitleBar() {
auto buttonSize = ImVec2(titleBarHeight * 1.5F, titleBarHeight);
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
ImGui::PushStyleColor(ImGuiCol_Button, ImGui::GetColorU32(ImGuiCol_MenuBarBg));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImGui::GetColorU32(ImGuiCol_ScrollbarGrabActive));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImGui::GetColorU32(ImGuiCol_ScrollbarGrabHovered));
ImGui::SetCursorPosX(ImGui::GetWindowWidth() - buttonSize.x * 6);
#if defined(DEBUG)
if (ImGui::Button(ICON_VS_DEBUG, buttonSize))
hex::openWebpage("https://imhex.werwolv.net/debug");
#endif
if (ImGui::Button(ICON_VS_SMILEY, buttonSize))
hex::openWebpage("mailto://hey@werwolv.net");
ImGui::SetCursorPosX(ImGui::GetWindowWidth() - buttonSize.x * 3);
if (ImGui::Button(ICON_VS_CHROME_MINIMIZE, buttonSize))
glfwIconifyWindow(this->m_window);
if (glfwGetWindowAttrib(this->m_window, GLFW_MAXIMIZED)) {
if (ImGui::Button(ICON_VS_CHROME_RESTORE, buttonSize))
glfwRestoreWindow(this->m_window);
} else {
if (ImGui::Button(ICON_VS_CHROME_MAXIMIZE, buttonSize))
glfwMaximizeWindow(this->m_window);
}
ImGui::PushStyleColor(ImGuiCol_ButtonActive, 0xFF7A70F1);
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, 0xFF2311E8);
if (ImGui::Button(ICON_VS_CHROME_CLOSE, buttonSize)) {
EventManager::post<RequestCloseImHex>();
EventManager::post<EventWindowClosing>(this->m_window);
}
ImGui::PopStyleColor(5);
ImGui::PopStyleVar();
ImGui::SetCursorPosX((ImGui::GetWindowWidth() - ImGui::CalcTextSize(this->m_windowTitle.c_str()).x) / 2);
ImGui::TextUnformatted(this->m_windowTitle.c_str());
}
}
#endif