mirror of
https://github.com/glest/glest-source.git
synced 2025-08-18 06:01:17 +02:00
Added camera zoom (from GAE) into mega-glest (middle mouse button zooms in and out like in GAE)
This commit is contained in:
Mark Vejvoda
325
source/shared_lib/sources/platform/sdl/window.cpp
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325
source/shared_lib/sources/platform/sdl/window.cpp
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//This file is part of Glest Shared Library (www.glest.org)
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//Copyright (C) 2005 Matthias Braun <matze@braunis.de>
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//You can redistribute this code and/or modify it under
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//the terms of the GNU General Public License as published by the Free Software
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//Foundation; either version 2 of the License, or (at your option) any later
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//version.
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#include "window.h"
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#include <iostream>
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#include <stdexcept>
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#include <cassert>
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#include <cctype>
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#include "conversion.h"
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#include "platform_util.h"
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#include "leak_dumper.h"
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#include "sdl_private.h"
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#include "noimpl.h"
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using namespace Shared::Util;
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using namespace std;
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namespace Shared{ namespace Platform{
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// =======================================
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// WINDOW
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// =======================================
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// ========== STATIC INICIALIZATIONS ==========
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// Matze: hack for now...
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static Window* global_window = 0;
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// ========== PUBLIC ==========
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Window::Window() {
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memset(lastMouseDown, 0, sizeof(lastMouseDown));
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assert(global_window == 0);
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global_window = this;
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}
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Window::~Window() {
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assert(global_window == this);
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global_window = 0;
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}
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bool Window::handleEvent() {
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SDL_Event event;
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while(SDL_PollEvent(&event)) {
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try {
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//printf("[%d]\n",event.type);
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switch(event.type) {
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case SDL_QUIT:
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return false;
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case SDL_MOUSEBUTTONDOWN:
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global_window->handleMouseDown(event);
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break;
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case SDL_MOUSEBUTTONUP: {
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global_window->eventMouseUp(event.button.x,
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event.button.y,getMouseButton(event.button.button));
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break;
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}
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case SDL_MOUSEMOTION: {
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MouseState ms;
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ms.leftMouse = (event.motion.state & SDL_BUTTON_LMASK) != 0;
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ms.rightMouse = (event.motion.state & SDL_BUTTON_RMASK) != 0;
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ms.centerMouse = (event.motion.state & SDL_BUTTON_MMASK) != 0;
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global_window->eventMouseMove(event.motion.x, event.motion.y, &ms);
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break;
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}
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case SDL_KEYDOWN:
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/* handle ALT+Return */
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if(event.key.keysym.sym == SDLK_RETURN
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&& (event.key.keysym.mod & (KMOD_LALT | KMOD_RALT))) {
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toggleFullscreen();
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}
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global_window->eventKeyDown(getKey(event.key.keysym));
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global_window->eventKeyPress(static_cast<char>(event.key.keysym.unicode));
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break;
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case SDL_KEYUP:
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global_window->eventKeyUp(getKey(event.key.keysym));
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break;
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}
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} catch(std::exception& e) {
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std::cerr << "Couldn't process event: " << e.what() << "\n";
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}
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}
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return true;
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}
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string Window::getText() {
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char* c = 0;
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SDL_WM_GetCaption(&c, 0);
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return string(c);
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}
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float Window::getAspect() {
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return static_cast<float>(getClientH())/getClientW();
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}
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void Window::setText(string text) {
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SDL_WM_SetCaption(text.c_str(), 0);
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}
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void Window::setSize(int w, int h) {
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this->w = w;
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this->h = h;
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Private::ScreenWidth = w;
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Private::ScreenHeight = h;
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}
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void Window::setPos(int x, int y) {
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if(x != 0 || y != 0) {
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NOIMPL;
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return;
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}
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}
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void Window::minimize() {
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NOIMPL;
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}
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void Window::setEnabled(bool enabled) {
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NOIMPL;
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}
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void Window::setVisible(bool visible) {
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NOIMPL;
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}
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void Window::setStyle(WindowStyle windowStyle) {
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if(windowStyle == wsFullscreen)
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return;
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// NOIMPL;
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}
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void Window::create() {
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// nothing here
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}
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void Window::destroy() {
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SDL_Event event;
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event.type = SDL_QUIT;
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SDL_PushEvent(&event);
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}
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void Window::toggleFullscreen() {
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SDL_WM_ToggleFullScreen(SDL_GetVideoSurface());
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}
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void Window::handleMouseDown(SDL_Event event) {
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static const Uint32 DOUBLECLICKTIME = 500;
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static const int DOUBLECLICKDELTA = 5;
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MouseButton button = getMouseButton(event.button.button);
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// windows implementation uses 120 for the resolution of a standard mouse
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// wheel notch. However, newer mice have finer resolutions. I dunno if SDL
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// handles those, but for now we're going to say that each mouse wheel
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// movement is 120.
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if(button == mbWheelUp) {
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//printf("button == mbWheelUp\n");
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eventMouseWheel(event.button.x, event.button.y, 120);
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return;
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} else if(button == mbWheelDown) {
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//printf("button == mbWheelDown\n");
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eventMouseWheel(event.button.x, event.button.y, -120);
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return;
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}
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Uint32 ticks = SDL_GetTicks();
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int n = (int) button;
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if(ticks - lastMouseDown[n] < DOUBLECLICKTIME
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&& abs(lastMouseX[n] - event.button.x) < DOUBLECLICKDELTA
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&& abs(lastMouseY[n] - event.button.y) < DOUBLECLICKDELTA) {
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eventMouseDown(event.button.x, event.button.y, button);
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eventMouseDoubleClick(event.button.x, event.button.y, button);
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} else {
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eventMouseDown(event.button.x, event.button.y, button);
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}
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lastMouseDown[n] = ticks;
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lastMouseX[n] = event.button.x;
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lastMouseY[n] = event.button.y;
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}
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MouseButton Window::getMouseButton(int sdlButton) {
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switch(sdlButton) {
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case SDL_BUTTON_LEFT:
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return mbLeft;
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case SDL_BUTTON_RIGHT:
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return mbRight;
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case SDL_BUTTON_MIDDLE:
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return mbCenter;
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case SDL_BUTTON_WHEELUP:
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return mbWheelUp;
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case SDL_BUTTON_WHEELDOWN:
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return mbWheelDown;
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default:
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throw std::runtime_error("Mouse Button > 3 not handled.");
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}
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}
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char Window::getKey(SDL_keysym keysym) {
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switch(keysym.sym) {
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case SDLK_PLUS:
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case SDLK_KP_PLUS:
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return vkAdd;
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case SDLK_MINUS:
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case SDLK_KP_MINUS:
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return vkSubtract;
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case SDLK_LALT:
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case SDLK_RALT:
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return vkAlt;
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case SDLK_LCTRL:
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case SDLK_RCTRL:
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return vkControl;
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case SDLK_LSHIFT:
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case SDLK_RSHIFT:
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return vkShift;
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case SDLK_ESCAPE:
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return vkEscape;
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case SDLK_UP:
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return vkUp;
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case SDLK_LEFT:
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return vkLeft;
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case SDLK_RIGHT:
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return vkRight;
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case SDLK_DOWN:
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return vkDown;
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case SDLK_RETURN:
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case SDLK_KP_ENTER:
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return vkReturn;
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case SDLK_BACKSPACE:
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return vkBack;
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case SDLK_0:
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return '0';
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case SDLK_1:
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return '1';
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case SDLK_2:
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return '2';
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case SDLK_3:
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return '3';
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case SDLK_4:
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return '4';
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case SDLK_5:
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return '5';
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case SDLK_6:
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return '6';
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case SDLK_7:
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return '7';
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case SDLK_8:
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return '8';
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case SDLK_9:
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return '9';
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case SDLK_a:
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return 'A';
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case SDLK_b:
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return 'B';
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case SDLK_c:
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return 'C';
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case SDLK_d:
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return 'D';
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case SDLK_e:
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return 'E';
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case SDLK_f:
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return 'F';
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case SDLK_g:
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return 'G';
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case SDLK_h:
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return 'H';
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case SDLK_i:
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return 'I';
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case SDLK_j:
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return 'J';
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case SDLK_k:
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return 'K';
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case SDLK_l:
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return 'L';
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case SDLK_m:
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return 'M';
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case SDLK_n:
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return 'N';
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case SDLK_o:
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return 'O';
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case SDLK_p:
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return 'P';
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case SDLK_q:
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return 'Q';
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case SDLK_r:
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return 'R';
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case SDLK_s:
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return 'S';
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case SDLK_t:
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return 'T';
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case SDLK_u:
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return 'U';
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case SDLK_v:
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return 'V';
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case SDLK_w:
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return 'W';
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case SDLK_x:
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return 'X';
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case SDLK_y:
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return 'Y';
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case SDLK_z:
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return 'Z';
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default:
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Uint16 c = keysym.unicode;
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if((c & 0xFF80) == 0) {
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return toupper(c);
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}
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break;
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}
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return 0;
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}
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}}//end namespace
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