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-// Filename: p3dWinAuthDialog.cxx
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-// Created by: drose (16Sep09)
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-//
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-////////////////////////////////////////////////////////////////////
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-//
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-// PANDA 3D SOFTWARE
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-// Copyright (c) Carnegie Mellon University. All rights reserved.
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-//
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-// All use of this software is subject to the terms of the revised BSD
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-// license. You should have received a copy of this license along
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-// with this source code in a file named "LICENSE."
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-//
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-////////////////////////////////////////////////////////////////////
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-
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-#include "p3dWinAuthDialog.h"
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-
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-#ifdef _WIN32
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-
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-bool P3DWinAuthDialog::_registered_window_class = false;
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::Constructor
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-// Access: Public
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-// Description:
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-////////////////////////////////////////////////////////////////////
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-P3DWinAuthDialog::
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-P3DWinAuthDialog() {
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- _hwnd = NULL;
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-}
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::open
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-// Access: Public, Virtual
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-// Description: Displays the dialog and waits for user to click a
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-// button.
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-////////////////////////////////////////////////////////////////////
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-void P3DWinAuthDialog::
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-open() {
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- close();
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- make_window();
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-}
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::close
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-// Access: Public, Virtual
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-// Description: Closes the dialog prematurely.
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-////////////////////////////////////////////////////////////////////
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-void P3DWinAuthDialog::
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-close() {
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-}
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::register_window_class
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-// Access: Public, Static
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-// Description: Registers the window class for this window, if
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-// needed.
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-////////////////////////////////////////////////////////////////////
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-void P3DWinAuthDialog::
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-register_window_class() {
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- if (!_registered_window_class) {
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- HINSTANCE application = GetModuleHandle(NULL);
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-
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- WNDCLASS wc;
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- ZeroMemory(&wc, sizeof(WNDCLASS));
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- wc.lpfnWndProc = st_window_proc;
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- wc.hInstance = application;
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- wc.hCursor = LoadCursor(NULL, IDC_ARROW);
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- wc.hbrBackground = HBRUSH(COLOR_WINDOW + 1);
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- wc.lpszClassName = "panda3d_auth_dialog";
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-
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- if (!RegisterClass(&wc)) {
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- nout << "Could not register window class panda3d_auth_dialog\n";
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- }
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- _registered_window_class = true;
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- }
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-}
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::unregister_window_class
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-// Access: Public, Static
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-// Description: Unregisters the window class for this window. It is
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-// necessary to do this before unloading the DLL.
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-////////////////////////////////////////////////////////////////////
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-void P3DWinAuthDialog::
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-unregister_window_class() {
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- if (_registered_window_class) {
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- HINSTANCE application = GetModuleHandle(NULL);
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-
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- if (!UnregisterClass("panda3d_splash", application)) {
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- nout << "Could not unregister window class panda3d_splash\n";
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- }
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- _registered_window_class = false;
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- }
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-}
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::make_window
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-// Access: Private
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-// Description: Creates the window.
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-////////////////////////////////////////////////////////////////////
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-void P3DWinAuthDialog::
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-make_window() {
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- register_window_class();
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- HINSTANCE application = GetModuleHandle(NULL);
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-
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- int x = CW_USEDEFAULT;
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- int y = CW_USEDEFAULT;
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-
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- int width = 320;
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- int height = 240;
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-
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- // Create a toplevel window.
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- DWORD window_style =
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- WS_POPUP | WS_CLIPCHILDREN | WS_CLIPSIBLINGS |
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- WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU;
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-
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- _hwnd =
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- CreateWindow("panda3d_auth_dialog", "New Panda3D Application",
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- window_style,
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- x, y, width, height,
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- NULL, NULL, application, 0);
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- if (!_hwnd) {
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- nout << "Could not create toplevel window!\n";
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- return;
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- }
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-
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- SetWindowLongPtr(_hwnd, GWLP_USERDATA, (LONG_PTR)this);
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-
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- // Stack items vertically from the top of the window.
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- static const int margin = 10;
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- int cy = margin;
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- int maxx = 0;
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-
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- // Set up the window text.
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- string header, text;
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- get_text(header, text);
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-
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- HFONT font = (HFONT)GetStockObject(ANSI_VAR_FONT);
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-
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- HWND header_label = NULL;
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- int header_width, header_height;
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- if (!header.empty()) {
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- header_label = make_static_text(header_width, header_height, font, header);
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- SetWindowPos(header_label, 0, margin, cy, 0, 0, SWP_NOZORDER | SWP_NOSIZE);
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- cy += header_height;
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- maxx = max(maxx, header_width);
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- cy += margin;
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- }
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-
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- int text_width, text_height;
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- HWND text_label = make_static_text(text_width, text_height, font, text);
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- SetWindowPos(text_label, 0, margin, cy, 0, 0, SWP_NOZORDER | SWP_NOSIZE);
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- cy += text_height;
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- maxx = max(maxx, text_width);
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- cy += margin;
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-
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- if (header_label != NULL && header_width < text_width) {
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- // Make the header as wide as the text to center it.
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- SetWindowPos(header_label, 0, 0, 0, text_width, header_height,
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- SWP_NOZORDER | SWP_NOMOVE);
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- }
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-
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- // Now make a button.
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- int button_width, button_height;
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- HWND cancel_button = make_button(button_width, button_height, "Cancel");
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- SetWindowPos(cancel_button, 0, margin, cy, 0, 0, SWP_NOZORDER | SWP_NOSIZE);
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- cy += button_height;
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- maxx = max(maxx, button_width);
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-
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- {
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- HDC dc = GetDC(cancel_button);
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- SelectObject(dc, font);
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- ReleaseDC(cancel_button, dc);
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- }
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-
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- // Make the window an appropriate size for all its items.
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- cy += margin;
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- int cx = maxx + margin * 2;
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-
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- // Compensate for the window title and border.
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- RECT win_rect = { 0, 0, cx, cy };
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- AdjustWindowRect(&win_rect, window_style, FALSE);
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-
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- SetWindowPos(_hwnd, HWND_TOP, 0, 0,
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- win_rect.right - win_rect.left, win_rect.bottom - win_rect.top,
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- SWP_NOMOVE);
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-
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- ShowWindow(_hwnd, SW_SHOWNORMAL);
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-}
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::make_button
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-// Access: Private
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-// Description: Creates a standard button object with the indicated
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-// label.
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-////////////////////////////////////////////////////////////////////
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-HWND P3DWinAuthDialog::
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-make_button(int &width, int &height, const string &label) {
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- HINSTANCE application = GetModuleHandle(NULL);
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-
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- DWORD window_style =
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- BS_PUSHBUTTON | WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
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-
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- width = 64;
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- height = 24;
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-
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- HWND button = CreateWindowEx(0, "BUTTON", label.c_str(), window_style,
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- 0, 0, width, height,
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- _hwnd, (HMENU)1, application, 0);
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- return button;
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-}
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::make_static_text
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-// Access: Private
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-// Description: Creates a static text object for displaying the
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-// indicated text block with the given font.
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-////////////////////////////////////////////////////////////////////
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-HWND P3DWinAuthDialog::
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-make_static_text(int &width, int &height, HFONT font,
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- const string &text) {
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- HINSTANCE application = GetModuleHandle(NULL);
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-
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- DWORD window_style =
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- SS_OWNERDRAW | WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
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-
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- measure_text(width, height, font, text);
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- HWND label = CreateWindowEx(0, "STATIC", text.c_str(), window_style,
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- 0, 0, width, height,
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- _hwnd, NULL, application, 0);
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- HDC dc = GetDC(label);
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- SelectObject(dc, font);
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- ReleaseDC(label, dc);
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-
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- return label;
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-}
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::measure_text
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-// Access: Private
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-// Description: Determines the height and width of the indicated
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-// string of text, using the indicated font.
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-////////////////////////////////////////////////////////////////////
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-void P3DWinAuthDialog::
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-measure_text(int &width, int &height, HFONT font, const string &text) {
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- HDC dc = GetDC(_hwnd);
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- SelectObject(dc, font);
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-
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- width = 0;
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- height = 0;
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- SIZE text_size;
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-
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- // GetTextExtentPoint() only works for one line at a time.
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- const char *text_data = text.data();
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- size_t start = 0;
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- size_t newline = text.find('\n');
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- while (newline != string::npos) {
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- string line(text_data + start, newline - start);
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- if (line.empty()) {
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- line = " ";
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- }
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- GetTextExtentPoint32(dc, line.data(), line.size(), &text_size);
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- width = max(width, text_size.cx);
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- height += text_size.cy;
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-
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- start = newline + 1;
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- newline = text.find('\n', start);
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- }
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-
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- GetTextExtentPoint32(dc, text_data + start, text.size() - start, &text_size);
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- width = max(width, text_size.cx);
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- height += text_size.cy;
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-
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- ReleaseDC(_hwnd, dc);
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-}
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::window_proc
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-// Access: Private
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-// Description: The windows event-processing handler.
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-////////////////////////////////////////////////////////////////////
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-LONG P3DWinAuthDialog::
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-window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
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- switch (msg) {
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- case WM_COMMAND:
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- cerr << "WM_COMMAND " << wparam << " " << lparam << "\n";
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- break;
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-
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- case WM_DRAWITEM:
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- // Draw a text label placed within the window.
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- {
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- DRAWITEMSTRUCT *dis = (DRAWITEMSTRUCT *)lparam;
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- FillRect(dis->hDC, &(dis->rcItem), WHITE_BRUSH);
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-
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- static const int text_buffer_size = 512;
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- char text_buffer[text_buffer_size];
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- GetWindowText(dis->hwndItem, text_buffer, text_buffer_size);
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-
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- HFONT font = (HFONT)GetStockObject(ANSI_VAR_FONT);
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- SelectObject(dis->hDC, font);
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- SetBkColor(dis->hDC, 0x00ffffff);
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-
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- DrawText(dis->hDC, text_buffer, -1, &(dis->rcItem),
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- DT_CENTER);
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- }
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- return true;
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- };
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-
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- return DefWindowProc(hwnd, msg, wparam, lparam);
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-}
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-
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-////////////////////////////////////////////////////////////////////
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-// Function: P3DWinAuthDialog::st_window_proc
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-// Access: Private, Static
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-// Description: The windows event-processing handler, static version.
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-////////////////////////////////////////////////////////////////////
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-LONG P3DWinAuthDialog::
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-st_window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
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- LONG_PTR self = GetWindowLongPtr(hwnd, GWLP_USERDATA);
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- if (self == NULL) {
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- // We haven't assigned the pointer yet.
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- return DefWindowProc(hwnd, msg, wparam, lparam);
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- }
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-
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- return ((P3DWinAuthDialog *)self)->window_proc(hwnd, msg, wparam, lparam);
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-}
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-
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-#endif // _WIN32
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David Rose