--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/gtk/graphics.c Wed Dec 09 11:32:01 2020 +0100
@@ -0,0 +1,157 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2017 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "graphics.h"
+#include "container.h"
+#include "../common/object.h"
+
+UIWIDGET ui_drawingarea(UiObject *obj, ui_drawfunc f, void *userdata) {
+ GtkWidget *widget = gtk_drawing_area_new();
+
+ if(f) {
+ UiDrawEvent *event = malloc(sizeof(UiDrawEvent));
+ event->obj = obj;
+ event->callback = f;
+ event->userdata = userdata;
+ ui_connect_draw_handler(widget, event);
+ }
+
+ UiContainer *ct = uic_get_current_container(obj);
+ ct->add(ct, widget, TRUE);
+
+ return widget;
+}
+
+
+static gboolean widget_button_pressed(
+ GtkWidget *widget,
+ GdkEvent *event,
+ gpointer userdata)
+{
+ UiEventData *eventdata = userdata;
+
+ UiMouseEvent me;
+ me.x = (int)event->button.x;
+ me.y = (int)event->button.y;
+
+ int exec = 0;
+ if(event->button.type == GDK_BUTTON_PRESS) {
+ exec = 1;
+ me.type = UI_PRESS;
+ } else if(event->button.type == GDK_2BUTTON_PRESS) {
+ exec = 1;
+ me.type = UI_PRESS2;
+ }
+
+ if(exec) {
+ UiEvent e;
+ e.obj = eventdata->obj;
+ e.window = eventdata->obj->window;
+ e.document = eventdata->obj->ctx->document;
+ e.eventdata = &me;
+ e.intval = 0;
+ eventdata->callback(&e, eventdata->userdata);
+ }
+ return TRUE;
+}
+
+void ui_drawingarea_getsize(UIWIDGET drawingarea, int *width, int *height) {
+#ifdef UI_GTK3
+ *width = gtk_widget_get_allocated_width(drawingarea);
+ *height = gtk_widget_get_allocated_height(drawingarea);
+#else
+ *width = drawingarea->allocation.width;
+ *height = drawingarea->allocation.height;
+#endif
+}
+
+void ui_drawingarea_redraw(UIWIDGET drawingarea) {
+ gtk_widget_queue_draw(drawingarea);
+}
+
+void ui_drawingarea_mousehandler(UiObject *obj, UIWIDGET widget, ui_callback f, void *u) {
+ gtk_widget_set_events(widget, GDK_BUTTON_PRESS_MASK);
+ if(f) {
+ UiEventData *event = malloc(sizeof(UiEventData));
+ event->obj = obj;
+ event->callback = f;
+ event->userdata = u;
+
+ g_signal_connect(G_OBJECT(widget),
+ "button-press-event",
+ G_CALLBACK(widget_button_pressed),
+ event);
+ } else {
+ // TODO: warning
+ }
+}
+
+
+// text layout
+UiTextLayout* ui_text(UiGraphics *g) {
+ UiTextLayout *layout = malloc(sizeof(UiTextLayout));
+ PangoContext *pc = ui_get_pango_context(g);
+ layout->layout = pango_layout_new(pc);
+ return layout;
+}
+
+void ui_text_setstring(UiTextLayout *layout, char *str) {
+ pango_layout_set_text(layout->layout, str, -1);
+}
+
+void ui_text_setstringl(UiTextLayout *layout, char *str, int len) {
+ pango_layout_set_text(layout->layout, str, len);
+}
+
+void ui_text_setfont(UiTextLayout *layout, char *font, int size) {
+ PangoFontDescription *fontDesc;
+ fontDesc = pango_font_description_from_string(font);
+ pango_font_description_set_size(fontDesc, size * PANGO_SCALE);
+ pango_layout_set_font_description(layout->layout, fontDesc);
+ pango_font_description_free(fontDesc);
+}
+
+void ui_text_getsize(UiTextLayout *layout, int *width, int *height) {
+ pango_layout_get_size(layout->layout, width, height);
+ *width = *width / PANGO_SCALE;
+ *height = *height / PANGO_SCALE;
+}
+
+void ui_text_setwidth(UiTextLayout *layout, int width) {
+ pango_layout_set_width(layout->layout, width * PANGO_SCALE);
+ pango_layout_set_ellipsize(layout->layout, PANGO_ELLIPSIZE_END);
+ //pango_layout_set_wrap(layout->layout, PANGO_WRAP_WORD_CHAR);
+}
+
+void ui_text_free(UiTextLayout *text) {
+ g_object_unref(text->layout);
+ free(text);
+}