nuclear@3: #include <stdio.h>
nuclear@2: #include <stdlib.h>
nuclear@1: #include <string.h>
nuclear@2: #include <ctype.h>
nuclear@0: #include <assert.h>
nuclear@0: #ifndef __APPLE__
nuclear@0: #include <GL/glut.h>
nuclear@0: #else
nuclear@0: #include <GLUT/glut.h>
nuclear@0: #endif
nuclear@0: #include "imtk.h"
nuclear@7: #include "state.h"
nuclear@13: #include "draw.h"
nuclear@1: 
nuclear@0: 
nuclear@13: void imtk_post_redisplay(void)
nuclear@13: {
nuclear@13: 	glutPostRedisplay();
nuclear@13: }
nuclear@13: 
nuclear@0: void imtk_begin(void)
nuclear@0: {
nuclear@7: 	int width, height;
nuclear@7: 
nuclear@20: 	glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
nuclear@20: 
nuclear@20: 	glDisable(GL_DEPTH_TEST);
nuclear@20: 	glDisable(GL_STENCIL_TEST);
nuclear@20: 	glDisable(GL_ALPHA_TEST);
nuclear@20: 	glDisable(GL_TEXTURE_1D);
nuclear@20: 	glDisable(GL_TEXTURE_2D);
nuclear@20: 	glDisable(GL_CULL_FACE);
nuclear@20: 	glDisable(GL_SCISSOR_TEST);
nuclear@20: 	glDisable(GL_LIGHTING);
nuclear@20: 	glEnable(GL_BLEND);
nuclear@20: 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
nuclear@20: 
nuclear@20: 
nuclear@7: 	imtk_get_viewport(&width, &height);
nuclear@7: 
nuclear@0: 	glMatrixMode(GL_PROJECTION);
nuclear@0: 	glPushMatrix();
nuclear@0: 	glLoadIdentity();
nuclear@0: 	glTranslatef(-1, 1, 0);
nuclear@7: 	glScalef(2.0 / width, -2.0 / height, 1.0);
nuclear@2: 
nuclear@2: 	glMatrixMode(GL_MODELVIEW);
nuclear@2: 	glPushMatrix();
nuclear@2: 	glLoadIdentity();
nuclear@0: }
nuclear@0: 
nuclear@0: void imtk_end(void)
nuclear@0: {
nuclear@0: 	glMatrixMode(GL_PROJECTION);
nuclear@0: 	glPopMatrix();
nuclear@2: 	glMatrixMode(GL_MODELVIEW);
nuclear@2: 	glPopMatrix();
nuclear@20: 
nuclear@20: 	glPopAttrib();
nuclear@0: }
nuclear@0: 
nuclear@13: void imtk_label(const char *str, int x, int y)
nuclear@0: {
nuclear@20: 	if(x == IMTK_AUTO || y == IMTK_AUTO) {
nuclear@20: 		imtk_layout_get_pos(&x, &y);
nuclear@20: 	}
nuclear@20: 
nuclear@13: 	glColor4fv(imtk_get_color(IMTK_TEXT_COLOR));
nuclear@21: 	imtk_draw_string(x, y + 14, str);
nuclear@20: 	imtk_layout_advance(imtk_string_size(str), 12);
nuclear@0: }
nuclear@0: 
nuclear@1: 
nuclear@20: static int box[4], span[4];
nuclear@20: static int spacing;
nuclear@20: static int layout;
nuclear@20: 
nuclear@20: void imtk_layout_start(int x, int y, int sp, int dir)
nuclear@4: {
nuclear@20: 	box[0] = span[0] = x;
nuclear@20: 	box[1] = span[1] = y;
nuclear@20: 	box[2] = box[3] = span[2] = span[3] = 0;
nuclear@20: 	spacing = sp;
nuclear@20: 	layout = dir;
nuclear@20: }
nuclear@4: 
nuclear@20: void imtk_layout_dir(int dir)
nuclear@20: {
nuclear@20: 	layout = dir;
nuclear@20: 	if(dir == IMTK_VERTICAL) {
nuclear@20: 		imtk_layout_newline();
nuclear@4: 	}
nuclear@4: }
nuclear@20: 
nuclear@20: void imtk_layout_advance(int width, int height)
nuclear@20: {
nuclear@20: 	int max_span_y, max_box_y;
nuclear@20: 
nuclear@20: 	span[2] += width + spacing;
nuclear@20: 
nuclear@20: 	if(height > span[3]) {
nuclear@20: 		span[3] = height;
nuclear@20: 	}
nuclear@20: 
nuclear@20: 	max_span_y = span[1] + span[3];
nuclear@20: 	max_box_y = box[1] + box[3];
nuclear@20: 
nuclear@20: 	if(max_span_y > max_box_y) {
nuclear@20: 		box[3] = max_span_y - box[1];
nuclear@20: 	}
nuclear@22: 	if(span[2] > box[2]) {
nuclear@22: 		box[2] = span[2];
nuclear@22: 	}
nuclear@20: 
nuclear@20: 	if(layout == IMTK_VERTICAL) {
nuclear@20: 		imtk_layout_newline();
nuclear@20: 	}
nuclear@20: }
nuclear@20: 
nuclear@20: void imtk_layout_newline(void)
nuclear@20: {
nuclear@20: 	span[0] = box[0];
nuclear@20: 	span[1] = box[1] + box[3] + spacing;
nuclear@20: 	span[2] = span[3] = 0;
nuclear@20: }
nuclear@20: 
nuclear@20: void imtk_layout_get_pos(int *x, int *y)
nuclear@20: {
nuclear@20: 	*x = span[0] + span[2];
nuclear@20: 	*y = span[1];
nuclear@20: }
nuclear@20: 
nuclear@20: void imtk_layout_get_bounds(int *bbox)
nuclear@20: {
nuclear@20: 	memcpy(bbox, box, sizeof box);
nuclear@20: }