ref: 939bb4cf3e586643919d606620bf298f2351d735
dir: /textscreen/txt_window.c/
// Emacs style mode select -*- C++ -*- //----------------------------------------------------------------------------- // // Copyright(C) 2006 Simon Howard // // 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 2 // 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, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA // 02111-1307, USA. // #include <stdlib.h> #include <string.h> #include "doomkeys.h" #include "txt_desktop.h" #include "txt_gui.h" #include "txt_main.h" #include "txt_separator.h" #include "txt_window.h" void TXT_SetWindowAction(txt_window_t *window, txt_horiz_align_t position, txt_window_action_t *action) { if (window->actions[position] != NULL) { TXT_DestroyWidget(window->actions[position]); } window->actions[position] = action; } txt_window_t *TXT_NewWindow(char *title) { int i; txt_window_t *win; win = malloc(sizeof(txt_window_t)); TXT_InitTable(&win->table, 1); if (title == NULL) { win->title = NULL; } else { win->title = strdup(title); } win->x = TXT_SCREEN_W / 2; win->y = TXT_SCREEN_H / 2; win->horiz_align = TXT_HORIZ_CENTER; win->vert_align = TXT_VERT_CENTER; win->key_listener = NULL; win->mouse_listener = NULL; TXT_AddWidget(win, TXT_NewSeparator(NULL)); for (i=0; i<3; ++i) win->actions[i] = NULL; TXT_AddDesktopWindow(win); // Default actions TXT_SetWindowAction(win, TXT_HORIZ_LEFT, TXT_NewWindowEscapeAction(win)); TXT_SetWindowAction(win, TXT_HORIZ_RIGHT, TXT_NewWindowSelectAction(win)); return win; } void TXT_CloseWindow(txt_window_t *window) { int i; TXT_EmitSignal(window, "closed"); free(window->title); // Destroy all actions for (i=0; i<3; ++i) { if (window->actions[i] != NULL) { TXT_DestroyWidget(window->actions[i]); } } // Destroy table and window TXT_DestroyWidget(window); TXT_RemoveDesktopWindow(window); } static void CalcWindowPosition(txt_window_t *window) { switch (window->horiz_align) { case TXT_HORIZ_LEFT: window->window_x = window->x; break; case TXT_HORIZ_CENTER: window->window_x = window->x - (window->window_w / 2); break; case TXT_HORIZ_RIGHT: window->window_x = window->x - (window->window_w - 1); break; } switch (window->vert_align) { case TXT_VERT_TOP: window->window_y = window->y; break; case TXT_VERT_CENTER: window->window_y = window->y - (window->window_h / 2); break; case TXT_VERT_BOTTOM: window->window_y = window->y - (window->window_h - 1); break; } } static void LayoutActionArea(txt_window_t *window) { txt_widget_t *widget; // Left action if (window->actions[TXT_HORIZ_LEFT] != NULL) { widget = (txt_widget_t *) window->actions[TXT_HORIZ_LEFT]; TXT_CalcWidgetSize(widget); widget->x = window->window_x + 2; widget->y = window->window_y + window->window_h - widget->h - 1; } // Draw the center action if (window->actions[TXT_HORIZ_CENTER] != NULL) { widget = (txt_widget_t *) window->actions[TXT_HORIZ_CENTER]; TXT_CalcWidgetSize(widget); widget->x = window->window_x + (window->window_w - widget->w - 2) / 2; widget->y = window->window_y + window->window_h - widget->h - 1; } // Draw the right action if (window->actions[TXT_HORIZ_RIGHT] != NULL) { widget = (txt_widget_t *) window->actions[TXT_HORIZ_RIGHT]; TXT_CalcWidgetSize(widget); widget->x = window->window_x + window->window_w - 2 - widget->w; widget->y = window->window_y + window->window_h - widget->h - 1; } } static void DrawActionArea(txt_window_t *window) { int i; for (i=0; i<3; ++i) { if (window->actions[i] != NULL) { TXT_DrawWidget(window->actions[i], 0); } } } static void CalcActionAreaSize(txt_window_t *window, unsigned int *w, unsigned int *h) { txt_widget_t *widget; int i; *w = 1; *h = 0; // Calculate the width of all the action widgets and use this // to create an overall min. width of the action area for (i=0; i<3; ++i) { widget = (txt_widget_t *) window->actions[i]; if (widget != NULL) { TXT_CalcWidgetSize(widget); *w += widget->w + 1; if (widget->h > *h) { *h = widget->h; } } } } // Sets size and position of all widgets in a window void TXT_LayoutWindow(txt_window_t *window) { txt_widget_t *widgets = (txt_widget_t *) window; unsigned int widgets_w; unsigned int actionarea_w, actionarea_h; // Calculate size of table TXT_CalcWidgetSize(window); // Widgets area: add one character of padding on each side widgets_w = widgets->w + 2; // Calculate the size of the action area // Make window wide enough to action area CalcActionAreaSize(window, &actionarea_w, &actionarea_h); if (actionarea_w > widgets_w) widgets_w = actionarea_w; // Set the window size based on widgets_w window->window_w = widgets_w + 2; window->window_h = widgets->h + 1; // If the window has a title, add an extra two lines if (window->title != NULL) { window->window_h += 2; } // If the window has an action area, add extra lines if (actionarea_h > 0) { window->window_h += actionarea_h + 1; } // Use the x,y position as the centerpoint and find the location to // draw the window. CalcWindowPosition(window); // Set the table size and position widgets->w = widgets_w - 2; // widgets->h (already set) widgets->x = window->window_x + 2; widgets->y = window->window_y; if (window->title != NULL) { widgets->y += 2; } // Layout the table and action area LayoutActionArea(window); TXT_LayoutWidget(widgets); } void TXT_DrawWindow(txt_window_t *window, int selected) { txt_widget_t *widgets; TXT_LayoutWindow(window); // Draw the window TXT_DrawWindowFrame(window->title, window->window_x, window->window_y, window->window_w, window->window_h); // Draw all widgets TXT_DrawWidget(window, selected); // Draw an action area, if we have one widgets = (txt_widget_t *) window; if (widgets->y + widgets->h < window->window_y + window->window_h - 1) { // Separator for action area TXT_DrawSeparator(window->window_x, widgets->y + widgets->h, window->window_w); // Action area at the window bottom DrawActionArea(window); } } void TXT_SetWindowPosition(txt_window_t *window, txt_horiz_align_t horiz_align, txt_vert_align_t vert_align, int x, int y) { window->vert_align = vert_align; window->horiz_align = horiz_align; window->x = x; window->y = y; } static void MouseButtonPress(txt_window_t *window, int b) { int x, y; int i; txt_widget_t *widgets; txt_widget_t *widget; // Lay out the window, set positions and sizes of all widgets TXT_LayoutWindow(window); // Get the current mouse position TXT_GetMousePosition(&x, &y); // Try the mouse button listener // This happens whether it is in the window range or not if (window->mouse_listener != NULL) { // Mouse listener can eat button presses if (window->mouse_listener(window, x, y, b, window->mouse_listener_data)) { return; } } // Is it within the table range? widgets = (txt_widget_t *) window; if (x >= widgets->x && x < (signed) (widgets->x + widgets->w) && y >= widgets->y && y < (signed) (widgets->y + widgets->h)) { TXT_WidgetMousePress(window, x, y, b); } // Was one of the action area buttons pressed? for (i=0; i<3; ++i) { widget = (txt_widget_t *) window->actions[i]; if (widget != NULL && x >= widget->x && x < (signed) (widget->x + widget->w) && y >= widget->y && y < (signed) (widget->y + widget->h)) { TXT_WidgetMousePress(widget, x, y, b); break; } } } void TXT_WindowKeyPress(txt_window_t *window, int c) { int i; // Is this a mouse button ? if (c == TXT_MOUSE_LEFT || c == TXT_MOUSE_MIDDLE || c == TXT_MOUSE_RIGHT) { MouseButtonPress(window, c); return; } // Try the window key spy if (window->key_listener != NULL) { // key listener can eat keys if (window->key_listener(window, c, window->key_listener_data)) { return; } } // Send to the currently selected widget if (TXT_WidgetKeyPress(window, c)) { return; } // Try all of the action buttons for (i=0; i<3; ++i) { if (window->actions[i] != NULL && TXT_WidgetKeyPress(window->actions[i], c)) { return; } } } void TXT_SetKeyListener(txt_window_t *window, TxtWindowKeyPress key_listener, void *user_data) { window->key_listener = key_listener; window->key_listener_data = user_data; } void TXT_SetMouseListener(txt_window_t *window, TxtWindowMousePress mouse_listener, void *user_data) { window->mouse_listener = mouse_listener; window->mouse_listener_data = user_data; }