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#ifdef G_OS_WIN32
#define WIN32_LEAN_AND_MEAN 1
#include <windows.h>
#endif
#include <GL/gl.h>
#include <string.h>
#include <stdio.h>
#include "button.h"
struct ButtonStruct ButtonCreate(double f_dXPos, double f_dYPos, double f_dWidth, char *f_pcTitle, int f_iType)
{
struct ButtonStruct l_sButton;
// copy parameters
l_sButton.m_dXPos = f_dXPos;
l_sButton.m_dYPos = f_dYPos;
l_sButton.m_iType = f_iType;
l_sButton.m_dWidth = f_dWidth;
// copy title
memcpy(l_sButton.m_pcTitle, f_pcTitle, sizeof(f_pcTitle));
switch (f_iType)
{
case BUTTON_CLICK:
l_sButton.m_piImgNormal[0] = BitmapLoad("img/button_click_left.bmp");
l_sButton.m_piImgNormal[1] = BitmapLoad("img/button_click_center.bmp");
l_sButton.m_piImgNormal[2] = BitmapLoad("img/button_click_right.bmp");
l_sButton.m_piImgPressed[0] = BitmapLoad("img/button_click_left_hover.bmp");
l_sButton.m_piImgPressed[1] = BitmapLoad("img/button_click_center_hover.bmp");
l_sButton.m_piImgPressed[2] = BitmapLoad("img/button_click_right_hover.bmp");
// calculate width of center image
l_sButton.m_dCenterWidth = f_dWidth - l_sButton.m_piImgNormal[0].m_iWidth - l_sButton.m_piImgNormal[2].m_iWidth;
// retrieve image height
l_sButton.m_dHeight = l_sButton.m_piImgNormal[0].m_iHeight;
break;
case BUTTON_RADIO:
case BUTTON_LABEL:
default:
break;
}
l_sButton.m_bPressed = FALSE;
l_sButton.m_bHover = FALSE;
return l_sButton;
} // ButtonCreate
void ButtonClickRender(struct ButtonStruct *f_sButton)
{
char l_pcTitle[BUTTON_MAX_TITLE];
// copy button attributes
double l_dWidth = f_sButton->m_dCenterWidth;
double l_dXPos = f_sButton->m_dXPos;
double l_dYPos = f_sButton->m_dYPos;
int l_iType = f_sButton->m_iType;
// copy buttom images
int l_iImageIdLeft = (!f_sButton->m_bHover) ? f_sButton->m_piImgNormal[0].m_iImageId : f_sButton->m_piImgPressed[0].m_iImageId;
int l_iImageIdCenter = (!f_sButton->m_bHover) ? f_sButton->m_piImgNormal[1].m_iImageId : f_sButton->m_piImgPressed[1].m_iImageId;
int l_iImageIdRight = (!f_sButton->m_bHover) ? f_sButton->m_piImgNormal[2].m_iImageId : f_sButton->m_piImgPressed[2].m_iImageId;
// copy button title
memset(&l_pcTitle, 0, sizeof(l_pcTitle));
memcpy(&l_pcTitle, f_sButton->m_pcTitle, sizeof(f_sButton->m_pcTitle));
// render left side of button
glBindTexture(GL_TEXTURE_2D, l_iImageIdLeft);
glBegin(GL_QUADS);
glTexCoord3d(0, 1, 0); glVertex3d(l_dXPos, l_dYPos, 0);
glTexCoord3d(1, 1, 0); glVertex3d(l_dXPos + 26, l_dYPos, 0);
glTexCoord3d(1, 0, 0); glVertex3d(l_dXPos + 26, l_dYPos + BUTTON_CLICK_HEIGHT, 0);
glTexCoord3d(0, 0, 0); glVertex3d(l_dXPos, l_dYPos + BUTTON_CLICK_HEIGHT, 0);
glEnd();
// render right side of button
glBindTexture(GL_TEXTURE_2D, l_iImageIdRight);
glBegin(GL_QUADS);
glTexCoord3d(0, 1, 0); glVertex3d(l_dXPos + 24 + l_dWidth, l_dYPos, 0);
glTexCoord3d(1, 1, 0); glVertex3d(l_dXPos + 24 + l_dWidth + 25, l_dYPos, 0);
glTexCoord3d(1, 0, 0); glVertex3d(l_dXPos + 24 + l_dWidth + 25, l_dYPos + BUTTON_CLICK_HEIGHT, 0);
glTexCoord3d(0, 0, 0); glVertex3d(l_dXPos + 24 + l_dWidth, l_dYPos + BUTTON_CLICK_HEIGHT, 0);
glEnd();
// render center of button
if (l_dWidth > 0)
{
glBindTexture(GL_TEXTURE_2D, l_iImageIdCenter);
glBegin(GL_QUADS);
glTexCoord3d(0, 1, 0); glVertex3d(l_dXPos + 25, l_dYPos, 0);
glTexCoord3d(1, 1, 0); glVertex3d(l_dXPos + 25 + l_dWidth, l_dYPos, 0);
glTexCoord3d(1, 0, 0); glVertex3d(l_dXPos + 25 + l_dWidth, l_dYPos + BUTTON_CLICK_HEIGHT, 0);
glTexCoord3d(0, 0, 0); glVertex3d(l_dXPos + 25, l_dYPos + BUTTON_CLICK_HEIGHT, 0);
glEnd();
}
} // ButtonClickRender
void ButtonRender(struct ButtonStruct *f_sButton)
{
int l_iType = f_sButton->m_iType;
switch (l_iType)
{
case BUTTON_CLICK:
ButtonClickRender(f_sButton);
break;
case BUTTON_RADIO:
case BUTTON_LABEL:
default:
break;
}
} // ButtonRender
void ButtonHover(struct ButtonStruct *f_sButton)
{
f_sButton->m_bHover = TRUE;
} // ButtonHover
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