gistfile1.php

<?php
  /**
    * Implements hook_menu()
  */ 

  function hoverslider_menu(){
    $items = array(); 
    $items['admin/config/content/hoverslider'] = array(
      'title' => 'Hover slider settings page', 
      'description' => 'This settings page is to set how many rows you want, images to each box etc...', 
      'page callback' => 'hoverslider_admin_callback', 
      'access arguements' => array('access administration pages'),
      'type' => MENU_NORMAL_ITEM, 
      'access callback' => TRUE, 
    ); 
    return $items; 
  }
  
  /** 
    * Implements hook_form(); 
  */ 

  function hoverslider_form($form, &$form_state) {
   $form['hoverslider_maxrows'] = array(
    '#type' => 'select', 
    '#title' => t('Select how many rows you want.'), 
    '#options' => array(
      1=> t('One Column'), 
      2 => t('Two Column'), 
      3 => t('Three Column')
    ), 
    '#default_value' => variable_get('hoverslider_maxrows', 0), 
    '#required' => true, 
   ); 
    return system_settings_form($form); 
  }
  
   /**
    * Custom function to assemble the form to be able to configure the module.
    * Returns a rednered drupal form.
    * @return
    *   returns a rendered form to display
  */

  function hoverslider_admin_callback(){
    $admin_form = drupal_get_form('hoverslider_form');
    return drupal_render($admin_form); 
  }

  /**
    * Implements hook_block_info()
  */

  function hoverslider_block_info() {
    $blocks = array();
    $blocks['HoverSlider'] = array(
      'info' => t('PDX Research Hover-Slider'),
    );
             
    return $blocks;
  }
  
  /**
   * Implements hook_block_configure().
  */

  function hoverslider_block_configure($delta = '') {
    $form = array();

    switch($delta){
      case "HoverSlider":
         $rowCount = variable_get('hoverslider_maxrows', 1);  
          while($rowCount  > 0){
          $column = 3;
          $form['column'.$rowCount] = array(); 
          while($column > 0){
            $form['column'.$rowCount]['row'.$rowCount.'text'.$column] = array(
              '#type' => "textfield", 
              '#title' => t("Enter your title for row:". $rowCount . "Column: ". $column), 
              '#default_value' => variable_get('c'.$column.'r'.$rowCount, ""), 
            ); 
            $column--; 
          }

          $form['column'.$rowCount]['imager'.$rowCount] = array(
            '#name' => 'row_image'.$rowCount, 
            '#type' => 'managed_file', 
            '#title' => t('please upload a image for the background image.'), 
            '#description' => t('Select an Image for the background image of this row. Only *.gif, *.png, *.jpg, and *.jpeg images allowed'),
            '#default_value' => variable_get('block_image_'.$rowCount.'_fid', ""), 
            '#upload_location' => 'public://hover_slider/', 
            '#upload_validators' => array(
              'file_validate_extensions' => array('gif png jpg jpeg'), 
            ), 
          ); 
          $rowCount--; 
        }

      break; 
    } 
    return $form; 
  }
  
  /**
    * Implements hook_block_save().
  */
  
  function hoverslider_block_save($delta = '', $edit = array()){
    switch($delta){
      case "HoverSlider": 
        $rowCount = variable_get('hoverslider_maxrow', 1); 
        while($rowCount > 0){
          variable_set('c1r'.$rowCount, $edit['row'.$rowCount.'text1']);         
          variable_set('c2r'.$rowCount, $edit['row'.$rowCount.'text2']); 
          variable_set('c3r'.$rowCount, $edit['row'.$rowCount.'text3']); 

          //save file perm state using the fid 
          $file = file_load($edit['imager'.$rowCount]); 
          $file->status = FILE_STATUS_PERMANENT; 
          file_save($file); 
          $block = block_load('HoverSlider', $delta); 
          file_usage_add($file, 'HoverSlider', 'block', $block->bid); 
          variable_set('block_image_'.$rowCount.'_fid', $file->fid); 
        }
      break; 
    }
  }
  
  /**
    * Implements hook_block_view().
  */

  function hoverslider_block_view($delta = ""){
    $block = array(); 
    switch($delta){
      case 'HoverSlider':
        $block['content'] = HoverSlider(); 
      break; 
    }
    return $block; 
  }
  
  /**
    * Custom function to assemble renderable array for block content.
    * Returns a renderable array with the block content.
    * @params int $r
    *   A integer that indicates how many rows to build; 
    * @params array $images 
    *   A array that stores each row background image that will be used to implement
    *   a html attribute for use by JavaScript
    * @params array $innerhtml 
    *   A sub render array to be pushed into parent container from block. 
    * @return
    *   returns a renderable array of block content.
  */

  function HoverSlider_view() {
    $block = array();
    //image[] will be used for storing the rows bg images. 
    $images = array();
    $matrixCells = array(); 
    //get row count
    $r = variable_get('hoverslider_maxrow', 1);
    //set the container 
    $block['container'] = array(
      '#prefix' => '<div class="block-hs-container">', 
      '#markup' => array(), 
      '#suffix' => '</div>'
    ); 

  
    while($r > 0){
      for($c = 1; $c < 3; $c++){
        $matrixCells['r'.$r.'c'.$c] = array(
          '#prefix' => '<div class="matrix-cell">', 
          '#markup' => '<p>'.variable_get('c'.$c.'r'.$r, "").'</p>',
          '#suffix' => '</div>'
        );
      }
      $innerhtml = array(
        '#prefix' => '<div class="matrix-row">',  
        '#markup' => $matrixCells, 
        '#suffix' => '</div>', 
      ); 
      $block['container']["#markup"][] = $innerhtml; 
      $r--; 
    }
    dpm($block); 
    //load image path. this will be used later. 
    return $block; 
  }

?>