X-Git-Url: http://git.mutantstargoat.com?p=winnie;a=blobdiff_plain;f=libwinnie%2Fsrc%2Fwm.cc;fp=libwinnie%2Fsrc%2Fwm.cc;h=621a23f3366066954a73033851939f08d52657a2;hp=0000000000000000000000000000000000000000;hb=7b5d2df884abb7084d71f17cc29a618c0b6f47ef;hpb=b4c8d68e0357683cec82fb8a9c5a4447155b3192

diff --git a/libwinnie/src/wm.cc b/libwinnie/src/wm.cc
new file mode 100644
index 0000000..621a23f
--- /dev/null
+++ b/libwinnie/src/wm.cc
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+/*
+winnie - an experimental window system
+
+Copyright (C) 2013 Eleni Maria Stea
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Author: Eleni Maria Stea <elene.mst@gmail.com>
+*/
+
+#include <algorithm>
+#include <limits.h>
+#include <stdexcept>
+#include <stdio.h>	// TODO
+
+#include "gfx.h"
+#include "mouse.h"
+#include "mouse_cursor.h"
+#include "shalloc.h"
+#include "text.h"
+#include "window.h"
+#include "winnie.h"
+#include "wm.h"
+
+#define DCLICK_INTERVAL 400
+
+WindowManager *wm;
+
+static void display(Window *win);
+static void mouse(Window *win, int bn, bool pressed, int x, int y);
+static void motion(Window *win, int x, int y);
+
+bool init_window_manager()
+{
+	void *wm_mem;
+	if(!(wm_mem = sh_malloc(sizeof *wm))) {
+		return false;
+	}
+
+	wm = new (wm_mem) WindowManager; 
+
+	get_subsys()->wm_offset = (int)((char*)wm - (char*)get_pool());
+
+	return true;
+}
+
+void destroy_window_manager()
+{
+	wm->~WindowManager();
+	sh_free(wm);
+}
+
+void WindowManager::create_frame(Window *win)
+{
+	Window *frame = new Window;
+	Window *parent = win->get_parent();
+
+	frame->set_display_callback(display);
+	frame->set_mouse_button_callback(mouse);
+	frame->set_mouse_motion_callback(motion);
+	frame->set_focusable(false);
+	frame->add_child(win);
+
+	windows.push_back(frame);
+
+	Rect win_rect = win->get_rect();
+	frame->move(win_rect.x - frame_thickness,
+			win_rect.y - frame_thickness - titlebar_thickness);
+	frame->resize(win_rect.width + frame_thickness * 2,
+			win_rect.height + frame_thickness * 2 + titlebar_thickness);
+
+	win->move(frame_thickness, frame_thickness + titlebar_thickness);
+	parent->add_child(frame);
+}
+
+void WindowManager::destroy_frame(Window *win)
+{
+	Window *frame = win->parent;
+	if(!frame) {
+		return;
+	}
+
+	if(grab_win == win) {
+		release_mouse();
+	}
+
+	std::list<Window*>::iterator it;
+	it = std::find(windows.begin(), windows.end(), frame);
+	if(it != windows.end()) {
+		root_win->add_child(win);
+		windows.erase(it);
+		delete frame;
+	}
+}
+
+WindowManager::WindowManager()
+{
+	if(!wm) {
+		wm = this;
+	} else {
+		throw std::runtime_error("Trying to create a second instance of WindowManager!\n");
+	}
+
+	root_win = new Window;
+	root_win->resize(get_screen_size().width, get_screen_size().height);
+	root_win->move(0, 0);
+	root_win->set_managed(false);
+
+	grab_win = 0;
+	focused_win = 0;
+	background = 0;
+
+	bg_color[0] = 210;
+	bg_color[1] = 106;
+	bg_color[2] = 106;
+
+	frame_thickness = 8;
+	titlebar_thickness = 16;
+
+	set_focused_frame_color(0, 0, 0);
+	set_unfocused_frame_color(200, 200, 200);
+
+	mouse_cursor.set_image(mouse_cursor_width, mouse_cursor_height);
+	unsigned char *pixels = mouse_cursor.get_image();
+
+	for(int i=0; i<mouse_cursor_height; i++) {
+		for(int j=0; j<mouse_cursor_width; j++) {
+			int val = mouse_cursor_bw[i * mouse_cursor_width + j];
+			*pixels++ = val;
+			*pixels++ = val;
+			*pixels++ = val;
+			*pixels++ = 255;
+		}
+	}
+}
+
+WindowManager::~WindowManager()
+{
+	delete root_win;
+}
+
+void WindowManager::invalidate_region(const Rect &rect)
+{
+	dirty_rects.push_back(rect);
+}
+
+void WindowManager::process_windows()
+{
+	if(dirty_rects.empty()) {
+		return;
+	}
+
+	std::list<Rect>::iterator drit = dirty_rects.begin();
+	Rect uni = *drit++;
+	while(drit != dirty_rects.end()) {
+		uni = rect_union(uni, *drit++);
+	}
+	dirty_rects.clear();
+
+	wait_vsync();
+
+	if(!background) {
+		fill_rect(uni, bg_color[0], bg_color[1], bg_color[2]);
+	}
+	else {
+		blit(background->pixels, Rect(0, 0, background->width, background->height),
+				get_framebuffer(), get_screen_size(), 0, 0);
+	}
+
+	root_win->draw_children(uni);
+
+	// draw mouse cursor
+	int mouse_x, mouse_y;
+	get_pointer_pos(&mouse_x, &mouse_y);
+
+	blit_key(mouse_cursor.get_image(), mouse_cursor.get_rect(),
+			get_framebuffer(), get_screen_size(), mouse_x, mouse_y,
+			0, 0, 0);
+
+	Rect mouse_rect(mouse_x, mouse_y, mouse_cursor.get_width(), mouse_cursor.get_height());
+	invalidate_region(mouse_rect);
+
+	gfx_update(uni);
+}
+
+void WindowManager::add_window(Window *win)
+{
+	if(!win || win == root_win) {
+		return;
+	}
+
+	root_win->add_child(win);
+
+	if(windows.empty()) {
+		focused_win = win;
+	}
+
+	if(win->get_managed()) {
+		create_frame(win);
+	}
+
+	windows.push_back(win);
+}
+
+void WindowManager::remove_window(Window *win)
+{
+	std::list<Window*>::iterator it;
+	it = std::find(windows.begin(), windows.end(), win);
+
+	if(it != windows.end()) {
+		windows.erase(it);
+	}
+}
+
+void WindowManager::set_focused_window(Window *win)
+{
+	if(win && win == focused_win) {
+		return;
+	}
+
+	Window *parent;
+	if(focused_win) {
+		// invalidate the frame (if any)
+		parent = focused_win->get_parent();
+		if(parent && parent != root_win) {
+			parent->invalidate();
+			fill_rect(parent->get_absolute_rect(), frame_ucolor[0], frame_ucolor[1], frame_ucolor[2]);
+		}
+	}
+
+	if(!win) {
+		focused_win = 0;
+		return;
+	}
+
+	if(win->get_focusable()) {
+		focused_win = win;
+		parent = focused_win->get_parent();
+		fill_rect(parent->get_absolute_rect(), frame_fcolor[0], frame_fcolor[1], frame_fcolor[2]);
+		return;
+	}
+
+	Window **children = win->get_children();
+	for(int i=0; i<win->get_children_count(); i++) {
+		if(children[0]->get_focusable()) {
+			set_focused_window(children[0]);
+			fill_rect(win->get_absolute_rect(), frame_fcolor[0], frame_fcolor[1], frame_fcolor[2]);
+			return;
+		}
+	}
+
+	focused_win = 0;
+}
+
+const Window *WindowManager::get_focused_window() const
+{
+	return focused_win;
+}
+
+Window *WindowManager::get_focused_window()
+{
+	return focused_win;
+}
+
+Window *WindowManager::get_window_at_pos(int pointer_x, int pointer_y)
+{
+	Window *root_win = wm->get_root_window();
+	Window **children = root_win->get_children();
+	for(int i=root_win->get_children_count() - 1; i>=0; i--) {
+		if(children[i]->contains_point(pointer_x, pointer_y)) {
+			return children[i];
+		}
+	}
+
+	return 0;
+}
+
+Window *WindowManager::get_root_window() const
+{
+	return root_win;
+}
+
+void WindowManager::set_focused_frame_color(int r, int g, int b)
+{
+	frame_fcolor[0] = r;
+	frame_fcolor[1] = g;
+	frame_fcolor[2] = b;
+}
+
+void WindowManager::get_focused_frame_color(int *r, int *g, int *b) const
+{
+	*r = frame_fcolor[0];
+	*g = frame_fcolor[1];
+	*b = frame_fcolor[2];
+}
+
+void WindowManager::set_unfocused_frame_color(int r, int g, int b)
+{
+	frame_ucolor[0] = r;
+	frame_ucolor[1] = g;
+	frame_ucolor[2] = b;
+}
+
+void WindowManager::get_unfocused_frame_color(int *r, int *g, int *b) const
+{
+	*r = frame_ucolor[0];
+	*g = frame_ucolor[1];
+	*b = frame_ucolor[2];
+}
+
+void WindowManager::set_background(const Pixmap *pixmap)
+{
+	if(background) {
+		delete background;
+	}
+
+	if(pixmap) {
+		background = new Pixmap(*pixmap);
+	}
+	else {
+		background = 0;
+	}
+}
+
+const Pixmap *WindowManager::get_background() const
+{
+	return background;
+}
+
+Window *WindowManager::get_grab_window() const
+{
+	return grab_win;
+}
+
+void WindowManager::grab_mouse(Window *win)
+{
+	grab_win = win;
+}
+
+void WindowManager::release_mouse()
+{
+	grab_win = 0;
+}
+
+void WindowManager::raise_window(Window *win)
+{
+	if(!win) {
+		return;
+	}
+
+	Window *parent = win->get_parent();
+	if(parent != root_win) {
+		if(parent->get_parent() == root_win) {
+			win = parent;
+		}
+		else {
+			return;
+		}
+	}
+
+	root_win->remove_child(win);
+	root_win->add_child(win);
+}
+
+void WindowManager::sink_window(Window *win)
+{
+	if(!win) {
+		return;
+	}
+
+	std::list<Window*>::iterator it;
+	it = std::find(windows.begin(), windows.end(), win);
+	if(it != windows.end()) {
+		windows.erase(it);
+		windows.push_front(win);
+	}
+}
+
+void WindowManager::maximize_window(Window *win)
+{
+	win->normal_rect = win->rect;
+	
+	Rect rect = get_screen_size();
+
+	Window *frame;
+	if((frame = win->get_parent())) {
+		frame->normal_rect = frame->rect;
+		frame->resize(rect.width, rect.height);
+		frame->move(rect.x, rect.y);
+
+		rect.width -= frame_thickness * 2;
+		rect.height -= frame_thickness * 2 + titlebar_thickness;
+	}
+	else {
+		win->move(0, 0);
+	}
+
+	win->resize(rect.width, rect.height);
+	win->set_state(Window::STATE_MAXIMIZED);
+}
+
+void WindowManager::unmaximize_window(Window *win)
+{
+	win->resize(win->normal_rect.width, win->normal_rect.height);
+	win->move(win->normal_rect.x, win->normal_rect.y);
+
+	Window *frame;
+	if((frame = win->get_parent())) {
+		frame->resize(frame->normal_rect.width, frame->normal_rect.height);
+		frame->move(frame->normal_rect.x, frame->normal_rect.y);
+	}
+
+	win->set_state(Window::STATE_NORMAL);
+}
+
+static void display(Window *win)
+{
+	//frame display:
+	Window *child = win->get_children()[0];
+	int r, g, b;
+	Rect abs_rect = win->get_absolute_rect();
+
+	//TODO 5 not hardcoded
+	set_text_position(abs_rect.x + 5, abs_rect.y + 15);
+	set_text_color(255, 255, 255);
+
+	if(child == wm->get_focused_window()) {
+		wm->get_focused_frame_color(&r, &g, &b);
+		fill_rect(abs_rect, r, g, b);
+	}
+	else {
+		wm->get_unfocused_frame_color(&r, &g, &b);
+		fill_rect(win->get_absolute_rect(), r, g, b);
+	}
+
+	draw_text(child->get_title());
+}
+
+static int prev_x, prev_y;
+
+static void mouse(Window *win, int bn, bool pressed, int x, int y)
+{
+	static long last_click = 0;
+
+	if(bn == 0) {
+		if(pressed) {	
+			wm->grab_mouse(win);
+			wm->raise_window(win);
+			prev_x = x;
+			prev_y = y;
+		}
+		else {
+			long time = winnie_get_time();
+			if((time - last_click) < DCLICK_INTERVAL) {
+				Window *child = win->get_children()[0];
+				Window::State state = child->get_state();
+				if(state == Window::STATE_MAXIMIZED) {
+					wm->unmaximize_window(child);
+				}
+				else if(state == Window::STATE_NORMAL) {
+					wm->maximize_window(child);
+				}
+			}
+			last_click = time;
+
+			wm->release_mouse();
+		}
+	}
+}
+
+static void motion(Window *win, int x, int y)
+{
+	int left_bn = get_button(0);
+
+	if(left_bn) {
+		int dx = x - prev_x;
+		int dy = y - prev_y;
+		prev_x = x - dx;
+		prev_y = y - dy;
+
+		if(win->get_children()[0]->get_state() != Window::STATE_MAXIMIZED) {
+			Rect rect = win->get_rect();
+			win->move(rect.x + dx, rect.y + dy);
+		}
+	}
+}