UI hacking.
This commit is contained in:
Ben Vanik
314
src/poly/ui/win32/win32_control.cc
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314
src/poly/ui/win32/win32_control.cc
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/**
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2014 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#include <poly/ui/win32/win32_control.h>
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namespace poly {
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namespace ui {
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namespace win32 {
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LRESULT CALLBACK
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Win32Control::WndProcThunk(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
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Win32Control* control = 0;
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if (message == WM_NCCREATE) {
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auto create_struct = reinterpret_cast<LPCREATESTRUCT>(lParam);
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control = reinterpret_cast<Win32Control*>(create_struct->lpCreateParams);
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SetWindowLongPtr(hWnd, GWLP_USERDATA, (__int3264)(LONG_PTR)control);
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} else {
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control =
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reinterpret_cast<Win32Control*>(GetWindowLongPtr(hWnd, GWLP_USERDATA));
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}
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if (control) {
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return control->WndProc(hWnd, message, wParam, lParam);
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} else {
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return DefWindowProc(hWnd, message, wParam, lParam);
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}
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}
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Win32Control::Win32Control(Control* parent, uint32_t flags)
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: Control(parent, flags), hwnd_(nullptr) {}
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Win32Control::~Win32Control() {
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if (hwnd_) {
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CloseWindow(hwnd_);
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hwnd_ = nullptr;
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}
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}
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void Win32Control::OnCreate() {
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Control::OnCreate();
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if (!is_cursor_visible_) {
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ShowCursor(FALSE);
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}
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if (!is_enabled_) {
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EnableWindow(hwnd_, false);
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}
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if (!is_visible_) {
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ShowWindow(hwnd_, SW_HIDE);
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}
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if (has_focus_) {
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SetFocus(hwnd_);
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}
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}
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void Win32Control::Resize(int32_t width, int32_t height) {
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MoveWindow(hwnd_, 0, 0, width, height, TRUE);
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}
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void Win32Control::Resize(int32_t left, int32_t top, int32_t right,
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int32_t bottom) {
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MoveWindow(hwnd_, left, top, right - left, bottom - top, TRUE);
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}
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void Win32Control::ResizeToFill(int32_t pad_left, int32_t pad_top,
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int32_t pad_right, int32_t pad_bottom) {
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if (!parent_) {
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// TODO(benvanik): screen?
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return;
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}
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RECT parent_rect;
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auto parent_control = static_cast<Win32Control*>(parent_);
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GetClientRect(parent_control->hwnd(), &parent_rect);
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MoveWindow(hwnd_, parent_rect.left + pad_left, parent_rect.top + pad_top,
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parent_rect.right - pad_right - pad_left,
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parent_rect.right - pad_bottom - pad_top, TRUE);
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}
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void Win32Control::set_cursor_visible(bool value) {
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if (is_cursor_visible_ == value) {
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return;
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}
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if (value) {
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ShowCursor(TRUE);
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SetCursor(nullptr);
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} else {
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ShowCursor(FALSE);
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}
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}
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void Win32Control::set_enabled(bool value) {
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if (is_enabled_ == value) {
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return;
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}
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if (hwnd_) {
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EnableWindow(hwnd_, value);
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} else {
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is_enabled_ = value;
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}
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}
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void Win32Control::set_visible(bool value) {
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if (is_visible_ == value) {
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return;
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}
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if (hwnd_) {
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ShowWindow(hwnd_, value ? SW_SHOWNOACTIVATE : SW_HIDE);
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} else {
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is_visible_ = value;
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}
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}
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void Win32Control::set_focus(bool value) {
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if (has_focus_ == value) {
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return;
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}
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if (hwnd_) {
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if (value) {
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SetFocus(hwnd_);
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} else {
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SetFocus(nullptr);
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}
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} else {
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has_focus_ = value;
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}
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}
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LRESULT Win32Control::WndProc(HWND hWnd, UINT message, WPARAM wParam,
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LPARAM lParam) {
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if (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST) {
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if (HandleMouse(message, wParam, lParam)) {
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return 0;
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} else {
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return DefWindowProc(hWnd, message, wParam, lParam);
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}
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} else if (message >= WM_KEYFIRST && message <= WM_KEYLAST) {
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if (HandleKeyboard(message, wParam, lParam)) {
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return 0;
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} else {
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return DefWindowProc(hWnd, message, wParam, lParam);
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}
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}
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switch (message) {
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case WM_NCCREATE:
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hwnd_ = hWnd;
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break;
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case WM_CREATE:
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OnCreate();
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break;
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case WM_DESTROY:
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OnDestroy();
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break;
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case WM_MOVING:
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break;
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case WM_MOVE:
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break;
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case WM_SIZING:
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break;
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case WM_SIZE: {
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RECT client_rect;
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GetClientRect(hwnd_, &client_rect);
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int32_t width = client_rect.right - client_rect.left;
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int32_t height = client_rect.bottom - client_rect.top;
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if (width != width_ || height != height_) {
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width_ = width;
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height_ = height;
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auto e = UIEvent(this);
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OnResize(e);
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}
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break;
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}
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case WM_PAINT:
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if (flags_ & kFlagOwnPaint) {
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PAINTSTRUCT ps;
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HDC hdc = BeginPaint(hWnd, &ps);
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EndPaint(hWnd, &ps);
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}
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break;
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case WM_ERASEBKGND:
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if (flags_ & kFlagOwnPaint) {
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return 0; // ignore
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}
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break;
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case WM_DISPLAYCHANGE:
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break;
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case WM_SHOWWINDOW: {
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if (wParam == TRUE) {
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auto e = UIEvent(this);
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OnVisible(e);
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} else {
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auto e = UIEvent(this);
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OnHidden(e);
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}
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break;
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}
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case WM_KILLFOCUS: {
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has_focus_ = false;
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auto e = UIEvent(this);
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OnLostFocus(e);
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break;
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}
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case WM_SETFOCUS: {
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has_focus_ = true;
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auto e = UIEvent(this);
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OnGotFocus(e);
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break;
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}
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}
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return DefWindowProc(hWnd, message, wParam, lParam);
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}
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bool Win32Control::HandleMouse(UINT message, WPARAM wParam, LPARAM lParam) {
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int32_t x = GET_X_LPARAM(lParam);
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int32_t y = GET_Y_LPARAM(lParam);
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if (message == WM_MOUSEWHEEL) {
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POINT pt = {x, y};
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ScreenToClient(hwnd_, &pt);
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x = pt.x;
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y = pt.y;
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}
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MouseEvent::Button button = MouseEvent::Button::kNone;
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int32_t dx = 0;
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int32_t dy = 0;
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switch (message) {
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case WM_LBUTTONDOWN:
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case WM_LBUTTONUP:
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button = MouseEvent::Button::kLeft;
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break;
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case WM_RBUTTONDOWN:
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case WM_RBUTTONUP:
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button = MouseEvent::Button::kRight;
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break;
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case WM_MBUTTONDOWN:
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case WM_MBUTTONUP:
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button = MouseEvent::Button::kMiddle;
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break;
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case WM_XBUTTONDOWN:
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case WM_XBUTTONUP:
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switch (GET_XBUTTON_WPARAM(wParam)) {
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case XBUTTON1:
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button = MouseEvent::Button::kX1;
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break;
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case XBUTTON2:
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button = MouseEvent::Button::kX2;
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break;
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default:
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return false;
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}
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break;
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case WM_MOUSEMOVE:
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button = MouseEvent::Button::kNone;
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break;
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case WM_MOUSEWHEEL:
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button = MouseEvent::Button::kNone;
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dx = 0; // ?
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dy = GET_WHEEL_DELTA_WPARAM(wParam);
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break;
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default:
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// Double click/etc?
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return true;
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}
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auto e = MouseEvent(this, button, x, y, dx, dy);
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switch (message) {
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case WM_LBUTTONDOWN:
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case WM_RBUTTONDOWN:
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case WM_MBUTTONDOWN:
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case WM_XBUTTONDOWN:
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OnMouseDown(e);
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break;
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case WM_LBUTTONUP:
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case WM_RBUTTONUP:
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case WM_MBUTTONUP:
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case WM_XBUTTONUP:
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OnMouseUp(e);
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break;
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case WM_MOUSEMOVE:
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OnMouseMove(e);
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break;
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case WM_MOUSEWHEEL:
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OnMouseWheel(e);
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break;
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}
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return true;
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}
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bool Win32Control::HandleKeyboard(UINT message, WPARAM wParam, LPARAM lParam) {
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auto e = KeyEvent(this, (int)wParam);
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switch (message) {
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case WM_KEYDOWN:
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OnKeyDown(e);
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return true;
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case WM_KEYUP:
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OnKeyUp(e);
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return true;
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default:
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return false;
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}
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}
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} // namespace win32
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} // namespace ui
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} // namespace poly
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