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https://github.com/eddyem/CCD_Capture.git
synced 2026-03-20 08:40:56 +03:00
pre-alpha (works only with FLI)
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199
events.c
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199
events.c
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/*
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* events.c
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*
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* Copyright 2015 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <usefull_macros.h>
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#include "events.h"
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#include "imageview.h"
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/**
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* manage pressed keys & menu items
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*/
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static void processKeybrd(unsigned char key, int mod, _U_ int x, _U_ int y){
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windowData *win = getWin();
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if(!win) return;
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DBG("key=%d (%c), mod=%d", key, key, mod);
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if(mod == GLUT_ACTIVE_CTRL){ // 'a' == 1, 'b' == 2...
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key += 'a'-1;
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DBG("CTRL+%c", key);
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switch(key){
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case 'r': // roll colorfun
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win->winevt |= WINEVT_ROLLCOLORFUN;
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break;
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case 's': // save image
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win->winevt |= WINEVT_SAVEIMAGE;
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break;
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case 'q': // exit case 17:
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win->killthread = 1;
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break;
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}
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}else if(mod == GLUT_ACTIVE_ALT){
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; // ALT
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}else switch(key){
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case '0': // return zoom to 1 & image to 0
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win->zoom = 1;
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win->x = 0; win->y = 0;
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break;
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case 27: // esc - kill
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win->killthread = 1;
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break;
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case 'c': // capture in pause mode
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DBG("winevt = %d", win->winevt);
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if(win->winevt & WINEVT_PAUSE)
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win->winevt |= WINEVT_GETIMAGE;
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break;
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case 'l': // flip left-right
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win->flip ^= WIN_FLIP_LR;
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break;
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case 'p': // pause capturing
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win->winevt ^= WINEVT_PAUSE;
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break;
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case 'u': // flip up-down
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win->flip ^= WIN_FLIP_UD;
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break;
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case 'Z': // zoom+
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win->zoom *= 1.1f;
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calc_win_props(NULL, NULL);
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break;
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case 'z': // zoom-
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win->zoom /= 1.1f;
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calc_win_props(NULL, NULL);
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break;
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}
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}
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/*
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* Process keyboard
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*/
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void keyPressed(unsigned char key, int x, int y){
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int mod = glutGetModifiers();
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//mod: GLUT_ACTIVE_SHIFT, GLUT_ACTIVE_CTRL, GLUT_ACTIVE_ALT; result is their sum
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DBG("Key pressed. mod=%d, keycode=%d (%c), point=(%d,%d)\n", mod, key, key, x,y);
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processKeybrd(key, mod, x, y);
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}
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/*
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void keySpPressed(_U_ int key, _U_ int x, _U_ int y){
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// int mod = glutGetModifiers();
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DBG("Sp. key pressed. mod=%d, keycode=%d, point=(%d,%d)\n", glutGetModifiers(), key, x,y);
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}*/
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static int oldx, oldy; // coordinates when mouse was pressed
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static int movingwin = 0; // ==1 when user moves image by middle button
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void mousePressed(int key, int state, int x, int y){
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// key: GLUT_LEFT_BUTTON, GLUT_MIDDLE_BUTTON, GLUT_RIGHT_BUTTON
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// state: GLUT_UP, GLUT_DOWN
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int mod = glutGetModifiers();
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windowData *win = getWin();
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if(!win) return;
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if(state == GLUT_DOWN){
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oldx = x; oldy = y;
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float X,Y, Zoom = win->zoom;
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conv_mouse_to_image_coords(x,y,&X,&Y,win);
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DBG("press in (%d, %d) == (%f, %f) on image; mod == %d", x,y,X,Y, mod);
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if(key == GLUT_LEFT_BUTTON){
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DBG("win->x=%g, win->y=%g", win->x, win->y);
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win->x += Zoom * (win->w/2.f - (float)x);
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win->y -= Zoom * (win->h/2.f - (float)y);
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}else if(key == GLUT_MIDDLE_BUTTON) movingwin = 1;
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else if(key == 3){ // wheel UP
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if(mod == 0) win->y += 10.f*win->zoom; // nothing pressed - scroll up
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else if(mod == GLUT_ACTIVE_SHIFT) win->x -= 10.f*Zoom; // shift pressed - scroll left
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else if(mod == GLUT_ACTIVE_CTRL) win->zoom *= 1.1f; // ctrl+wheel up == zoom+
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}else if(key == 4){ // wheel DOWN
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if(mod == 0) win->y -= 10.f*win->zoom; // nothing pressed - scroll down
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else if(mod == GLUT_ACTIVE_SHIFT) win->x += 10.f*Zoom; // shift pressed - scroll right
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else if(mod == GLUT_ACTIVE_CTRL) win->zoom /= 1.1f; // ctrl+wheel down == zoom-
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}
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calc_win_props(NULL, NULL);
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}else{
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movingwin = 0;
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}
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}
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void mouseMove(int x, int y){
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windowData *win = getWin();
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if(!win) return;
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if(movingwin){
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float X, Y, nx, ny, w2, h2;
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float a = win->Daspect;
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X = (x - oldx) * a; Y = (y - oldy) * a;
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nx = win->x + X;
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ny = win->y - Y;
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w2 = win->image->w / 2.f * win->zoom;
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h2 = win->image->h / 2.f * win->zoom;
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if(nx < w2 && nx > -w2)
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win->x = nx;
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if(ny < h2 && ny > -h2)
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win->y = ny;
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oldx = x;
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oldy = y;
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calc_win_props(NULL, NULL);
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}
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}
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void menuEvents(int opt){
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DBG("opt: %d, key: %d (%c), mod: %d", opt, opt&0xff, opt&0xff, opt>>8);
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// just work as shortcut pressed
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processKeybrd((unsigned char)(opt&0xff), opt>>8, 0, 0);
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} // GLUT_ACTIVE_CTRL
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typedef struct{
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char *name; // menu entry name
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int symbol; // shortcut symbol + rolled modifier
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} menuentry;
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#define CTRL_K(key) ((key-'a'+1) | (GLUT_ACTIVE_CTRL<<8))
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#define SHIFT_K(key) (key | (GLUT_ACTIVE_SHIFT<<8))
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#define ALT_K(key) (key | (GLUT_ACTIVE_ALT<<8))
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static const menuentry entries[] = {
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{"Capture in pause mode (c)", 'c'},
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{"Flip image LR (l)", 'l'},
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{"Flip image UD (u)", 'u'},
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{"Make a pause/continue (p)", 'p'},
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{"Restore zoom (0)", '0'},
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{"Roll colorfun (ctrl+r)", CTRL_K('r')},
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{"Save image (ctrl+s)", CTRL_K('s')},
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{"Close this window (ESC)", 27},
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{"Quit (ctrl+q)", CTRL_K('q')},
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{NULL, 0}
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};
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#undef CTRL_K
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#undef SHIFT_K
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#undef ALT_K
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void createMenu(){
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FNAME();
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windowData *win = getWin();
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if(!win) return;
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DBG("menu for win ID %d", win->ID);
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glutSetWindow(win->ID);
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if(win->menu) glutDestroyMenu(win->menu);
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win->menu = glutCreateMenu(menuEvents);
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const menuentry *ptr = entries;
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while(ptr->name){
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glutAddMenuEntry(ptr->name, ptr->symbol);
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++ptr;
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}
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DBG("created menu %d\n", win->menu);
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glutAttachMenu(GLUT_RIGHT_BUTTON);
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}
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